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2. A RELEASE TO PRODUCTION 42 5239025 JRS 2 18 99 W CHANGE WIRE SPEC IN NOTE 2 9004S JRO 949499 ADD Ss LENGTH ADD ERR TIE 5 398719 JRS 16 24 99 CHANGED PART 620166 Dd Ve ie doe e e E Es A EE bi SIISE OOP s ALL YES DIN THROUGH FERRITE ps 3 3 PIN s 4 c 8 PAR RATE PAN 949991992 SHRIUNG LUBE 6 WIRE 226A YELLOW WIRE 226A ORANGE 4 WIRE 2204 RED 3 WIRE 226A BROWN NOTES 8 d CONTACTOS MOLEX 09 0 LES ja E PLN CONNECT 34 QUE 12 JUNE g Pa ALE CUNEO E Is De DE eC OG Ne D E ONES SANDS SC Sone e Ae EX QI Y ITEM DESCRIPTION CO NINE Gs OR MA Spe TIAL obli cv ls jauh IL P d q chi qud M SIL Or BEL ER 620166 THIS DRAWING REV C AND ABOVE 620166 Do MIRE AP ES LE I wd PART NO DESCRIPTION IYPE U L 1061 CSA AWM A B FTI Mou cU n cud m S i a W OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION e CL ENEE E QU dee GING JAQG abd SSP RON UR mee MEMO KANGSEZ Ou qwe E cher ENEE uiian eL AOT BAT ING 300V APPROVED DATE MATERIAL V EE 2 19 99 psp qe quise 3160 DH Ce JST REL TO PROD DATE FINISH RECOGNIZED COMPONENT MARK RU AND CSA MUST Y BELLOJ2 19 99 i KPIEAR XN ZEN SOIR BE G9 WM ED IN AE e PLE Adol CAD SOFTWARE PE er TRANSLATED FROM ME 10 UNLESS OTHERWISE SPECIFIED M DA ua 620166 od ANE 7 NONE SHEET Iro REV DESCRIPTION ECN ECO INIT DATE CKD
3. KENDALL 620027 4 1540PS 5 LEAD DIN STYLE SAFETY PATIENT CABLE PART NUMBER SEE TABLE CATALOG P N IEC COLOR CODE R B W G Y A LOT NUMBER XXXXXX A PACKAGING BAG LABEL SHALL CONTAIN KENDAL CATALOG NUMBER SEE TABLE PART NO DESCRIPTION es n E l S si I R EF P N THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC E Eta AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE OUANTITY FACH 1 CABLE MUST MEET THE PERFORMANCE STANDARD FOR ELECTRODE LEAD WIRES OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION LOT NUMBER XXXXXX AND PATIENT CABLES FOUND IN TITLE 21 CFR PART 898 DRAWN TW JB ENGEL A CHANNEL DESIGNATIONS RA WHITE LL RED LA BLACK A pus IT P SOMEEN ecd Eq iic Me HE Ne Ee asc SY i 4 16 99 COMPLIANT WITH ANSI AAMI EC53 1995 CABLE AND LEAD STANDARD COMPLIANT WITH ANSI AAMI ECSS 1999 CABLE AND LEAD STANDARD J BELLO 4 16 99 A CHANNEL DESIGNATIONS RA WHITE RL GREEN C BROWN A LIE TAI TP IE T s PAT VENT e Ee WII dq qe SOM Ve S EE MN E n WIRING PER ANSI AAMI 1983 ECG CONNECTOR STANDARD WIRING PER ANSI AAMI 1983 ECG CONNECTOR STANDARD MEET SES COMPLIANT WITH ANSI AAMI EO53 1995 CABLE AND LEAD STANDARD COMPLIANT WITH ANSI AAMI EC53 1995 CABLE AND LEAD STANDARD UNLESS OTHERWISE SPECIFIED C DRAWING NO TOLERANCES DIMENSIONS XX
4. D2 MBRS340T3 C8 1800uF Release to Production 5 39179 JAC 3 18 99 LPP Temperature 9V 5V Amplifier C1 047uF R1 51 1K TP3 C2 Rec Temp R4 01uF U1A 9 09K MC34072 A v A R5 Printhead 1K On Off Swieen R8 23 7K C5 OluF Thermistor 5V Q1 R16 Input 19 6K MTP30P06V D3 BAV99L v A v A Printhead Connector 24V switch Thermistor1 Strobe U5B 74HCT04 USA 74HCT04 U5F 74HCT04 24 V C19 C20 047uF 47uF Connector Pin di 3 4 6 A CON6 Welch Allyn Inc Drawn Schematic 620014 dsn i Hick Mvers Mar 5 1999 Title I Shocked Printer Electronics L Phillips 3 22 99 Approved Document Number Release For Production 620014 Rev A of 1 Monday March 22 1999 Sheet 1 GE EKG Page6 Release to Production 5 39121 3 15 99 EKG PWM ADC Recorder lt FE PWM ADC m See ECN worksheet 5 39455 4 27 99 ESD Ground 5V U1C al I 74HCT04 Mods to U2 clock line Resp gain TP7 SR ECG supply and NVRAM 5 39821 LPP 6 24 99 LPP pullup EKG Data Clock Q q Improvements for ESD RFl and o 7 FE Data Clock E Fast T
5. D801 L sted Jg EAE Barrier 1801 1 gt gt RVcc Isolated Supply R812 w C803 l 215 100uF Serial T801 Communication TEGOZ T Q BAV99L i gt gt R 5V C804 3 100uF 3 U801 MC34063AD D IDC ISWC IsoXfmr ISWE gt gt RVee C801 m Z T r TCAP G COMP 1000F R R805 3 16K TP804 Q R806 5 11K TPS5908 TP805 1K Vfuse N R813 R 5V RVcc 5 619 K801 Y Y Q802 RELAY SPST NurseCall lt lt MMBT3904L C808 802 e C809 047uF 047uF R R l R 5V R 5V d TP806 serial I O N N TP807 C815 80 Q connector Za gt 901 R810 U803 TRY contact 619 HCNW4503 LA iso803 a 8 S R811 2RY 2 RS423Tx gt 3 6 19K dl 3RY 4 gt R817 215 Rx rl 5 A iso803 c BA Ix 6 tema H gt 2DA gt 2py E SSES 8 SS gi a S RJ 45 3DAS D g3DY 5 gt U802 O 00 TL145406 C814 C812 680pF 680pF R 5V N N CRVee R R 5V 5V A 2 Y C816 N C810 U802 15 047uF U804 R808 Q801 HCNW4503 619 MMBT3904L lt iso802 a q801 e lt RS423Rx lt lt lt TP809 Initial Welch Allyn Inc 9 99 Gerial C cat enal Gommunicatlon Checked L Phillips 3 16 99 ki Z Psenienk Lange PE Weg Number E Z Psenicnik 3 16 99 C 620017 E elease For Production EE J Bello 3 16 99 Date Wednesday July 14 1999 Sheet 8 of 8 Title REV DESCRIPTION ECNZECO INIT DATE CKD C A RELEASE TQ PROD ENG 2 39342 JRS 14 08 99 W 150
6. CORE pesce o o F TEM LTEM 3 L I f 2 E U 3 3 PIN 4 d 2 SECT UMN sah D 3 30E 29 SHRUNK TUBE 21 0 WIRE 22GA GREEN WIRE 22GA BROWN WIRE 226A BLUE WES CoA RED WIRE 226A BLACK NOTES WIRE 226A WHITE 6 CONTACTS MOLEA 095070 13 Le Jil SOON E E p JE dd wb RECOGNIZED GOMRONENMI Spr oes U E Hii qp o PIN CONNECTOR MOLEX 22 01 5061 CONNEC POR MATER TAL WE Tow qd Iq RAJ TINGS xr Ou e9e X iE TER 6 2 ECG PINS FEMALE AMP 66105 3 ECG CONNECTOR WA PARI 620102 o WIRE SPECIE LATIONS QTY TEM MSC RAE EN i PART NO DESCRIPTION TYPE U L 1061 CSA AWM A B FTI a NOE O S EE OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION COLO CODER 0009 Tak NOM PVC WANS AT DON TYT STI TEMP RANGE 10 C TO 80 C JB ENGEL I3 Jan 99 MO TAGE RA NG 300V APPROVED DATE MATERIAL I EP 2119 99 exp DE I T AN et Xp LX O CONDUCTOR REL TO PROD DATE FINISH RECOGNIZED COMPONENT MARK RU AND CSA MUST Y DELEURAN f APPEARJON SPOOL GR BE STAMPED ON WIRE s l CABLE Asst CAD SOFTWARE PE LCG TRANSLATED FROM ME 10 UNLESS OTHERWISE SPECIFIED ie BE SES 620165 ea 05 7 NONE SHEET iet REV DESCRIPTION ECN ECO INIT DATE CKD
7. A RELEASE TO PRODUCTION X2 H Ji S E GE TW ADD FERRITE ITEM 6 CHANGED PART NO TO 620169 CHANGE CONN TO METAL SHELL CHANGED PART NO TO 620169 2 JRS 15 14 99 JRS 6 29 99 90 MAX FOR SHIELDED CABLE gt 130 MAX FOR COAX CABLE SHIELD d SEL HEAT SHRINK REF VO O BOTH CABLES THROUGH ees L BOCATE ud IMIE PRENT EE GL E IPG 487 EP GEIP SEE PETATE B 4 Z ZZ 7 7 7 7 7 7 G DRAINWIRE YELLOW 2 SHRINKWRAPPED BOTH ENDS CONNECTOR REF G Let 250 STRIP o Se SOTELO OVER SMS DETAIL iB 3 p OVERLAP SEAM 4 PLES S O E LI O COL 1 s FAIR RITE 2643625102 G O 4 5 HEAT SHRINK Se daq O 4 COAX CABLE BELDON 8216 3 SHIELDED CABLE CAROL CO742 W DRAIN SPAID SOJELD CONNECTED TO 26 AWE ORANGE 2 3M CONNECTOR 89110 010 JUMPER WIRE VIA SOLDER BRIDGE COVER WITH LOW TEMPERATURE SHRINK TUBING BOTHE ENDS C SPOe CONNECTOR AMP 4549l e OTVI ITEM DESCRIPTION 620169 2 THIS PART REV C AND ABOVE 5 MIDD E COAX 620169 THES PARI REV DO AND ABOVE 3 ORANGE JUMPER FROM GOAX
8. so a LA gt LL gt d V gt x fVee 2 5 5 Differential Amplifier and Slew rate limit A traditional 3 opamp gain stage U507 and U508 1s used to construct the differential amplifier The topology is modified slightly with the addition of slew rate limiting U509 The ECG signal is slew rate limited to about 100V sec This is done to minimize distortion of the ECG trace in the presence or large pace pulses The differential outputs of this stage are used as input to the RLD amplifier Diff Amp and Slew Rate Limit DC Gain 1 fVcc C544 E 1000pF 3 mux 2 1 diff R544 R546 10K 0 196 10K 0 1 MC34002 fVcc mux gt f 10K 0 1 oe l gt gt SingEnd Out AD712 U509 LMC7101 MC34002 2 0 6 Right Leg Drive Amplifier The right leg amplifier performs two functions First is to provide bias current to the input buffer amplifiers Second to reduce 60Hz interference increase CMR Patient Common mode signals are amplified and inverted and this resultant signal used to drive the patient Gain of the RLD amplifier at 60Hz is maximized while keeping the system gain stable The RLD output is mux d to the appropriate wire depending on the chosen input vector For example when looking at Lead I LA RA the RLD signal is switched to the LL buffer Appendix A 10 14 99 RLD Mux To RL lt lt 3 Sw RLD RL gt I 14 RLD Amp ti To LL lt lt T ES Sw RLD LL gt 11 U503A
9. U507 mux U508 C532 047uF C533 047uF fVcc Diff Amp U507A dd MC34002 Gain 1 R544 10K 0 195 U508 3 R545 10K 0 1 AD712 U507B TP514 A q MC34002 co N C542 5 fVee 220pF 508 2 R547 10K diff out 0 1 C545 High Pass Se WE Low Pass VE E C515 3 3uF R548 1Meg Mux LdS A lt VE lt Mux LdS B X Mux LdS C Drawn Designed Checked Approved Release For Production C544 1000pF R546 10K 0 1 TP557 R565 TP532 Q504 Y ecg hp 2N7002 Q505 2N7002 A Bello Bello Seo 6 99 See ECN worksheet Improvements for ESD RFI and Fast Transients Correct Respiration Diff Amp Topology Mods to U2 clock line Resp gain amp ECG supply and 047uF Schematic U509 LMC7101 0 05Hz or 0 5Hz Gain Stage Nee Gain 74 TP517 Q S TP518 O 508 5 KAn ECG R551 C517 73 2K 01uF E TP527 Y R552 3 1K Welch Allyn Inc 620017 dsn Title Size C Date ECG Amp Document Number Rev E f 8 Wednesday Jul 14 1999 Sheet 5 O U601 U602 U603 U608 U609 fVcc C639 047uF R623 46 4K fVcc TP604 E E E E E E oO e TP603 Y U601 U602 U603 U608 U609 Resp Reset K Resp Off gt Q m SpO2 Reset gt TP601 e C640 gt 047uF fVcc fVee E E E E E E fVcc R622 2 46 4K Sw MonBw lt lt NE O U607A LM393 TP606 TP607 TP609 fVee fVcc SW RLD RL OD SW RLD LL Sw Rt p v lt R
10. PWM Out U604 8 l l l I l 2 2 2 A D Multiplexer A 16 channel multiplexer formed by two 8 channel multiplexers is used to select the analog signal to be digitized Control of the multiplexer is through a serial communication channel from the main CPU The following signals are digitized 1 Ground Ground Reference for digitized signals used in calibrating the A D converter 2 f1 24V Reference Voltage used in calibrating the A D converter 3 ECG Amplified ECG signal 4 V Buffer Output of the V lead buffer used to determine leads off 5 LL Buffer Output of the LL lead buffer used to determine leads off 6 LA Buffer Output of the LA lead buffer used to determine leads off 7 RA Buffer Output of the RA lead buffer used to determine leads off 8 RL Output Output of the RL amplifier 9 Patient Temp Analog voltage representing patient Temperature 10 Respiration Amplified Respiration signal 11 Resp Leads Off DC impedance for respiration used to determine respiration Leads off Appendix A 10 14 99 Mux A D C Mux A D B Mux A D A Mux B Resp LdsOff An Resp gt yg H NO O1 O V Analog ECG OS gt lt gt lt gt lt gt lt gt x gt 2 33 Serial Communication Serial data is transmitted to the isolated circuits through Optical Isolators The following signals are transmitted from the CPU board to the isolated circuits 1 FE Serial Data Serial Data transmitted from the CPU board to the Isolat
11. 7 4V The switcher operates at 76 8KHz controlled by a sync signal from the CPU board The power supply is synchronized with the A D converter used to digitize ECG Temperature and Respiration signals Isolation Barrier Patient T Isolated M ERE Circuits TECH D401 i MBRS130T3 le 6412 m 10uF T401 1 tV lt lt 4 TE C409 470pt C405 T401 BE C402 100uF q 409 1 S TP449 1 e AM NS 5 R405 215 2 444 U402 ret__ATP451 047uF 8 T401 8 TP466 BE o TP453 U402 0420 3 sla y SCH z vrer H 047uF gt RO 2 TP454 ii 10 4 FE Pwr S A e HTDWN Pwr Sync Se Q401 kalmi B 10 8 Lols s y 4 MTD3055V 1 o ls U402 e 11 r PS 13 OSCOUT Ce U402 rt Q TP455 D403 14 e 7 U402 ct IsoXfmr e TP456 2 R409 d TP457 w lt 1401 4 Q402 i 5 11K 2 o MMBT3906L 3 U402 sen 4 a 1 Rave s tSENSE Q V Fg e C407 l MBRS130T3 0 2 ll SENSE COMP S capp R410 C404 100uF R408 TP458 C410 LM3524DM EM 2200pF 7 5K 100 01uF Q401 s J s H Kg gt gt LN KN R422 5V 10K Y TP459 U410 4N25 U401 3 3 E 1 iso401 a 1 6 iso401 b 5 11K l R423 U401A 5 opto fb 5 11K LM358 v D 4 2 T R404 Nae 196K R401 R402 WE 10K 10 Appendix A 10 14 99 From th
12. Service Manual Atlas Monitor Welch Allyn Medical Division 3341 State Street Road P O Box 220 Skaneateles Falls NY 13153 0220 Copyright 1999 6200 43E Penno me Des pin em Approves 6200 43E ES ee e Sitten 5 40429 10 99 RS LP Drawings and or illustrations and or part numbers contained in this document are for reference purposes only For current revisions call the Welch Allyn Customer Service phone number listed in Section 1 page 2 SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS PATIENT MONITOR i Contents ND Section 1 General Information a WE giel ge uote io A a a a a 1 1 2 Technical Help Information Worldwide Tech Support Phone Number 2 1 3 Product Model Number Structure occccocccnccconnncccncncocononnnnanonononcnnononcnnonanenonnanonononcnns 3 1 4 Main Re TR Architecture EE 6 1 5 Atlas System Block Diagram EE 7 Section 2 Service See User Manual 6200 42E for Atlas Specifications 2 1 Incoming Inspection G ECKIISt iii tenance Du ated a aus Scie tao taes 1 2 27 RODA TOSIS id 2 4 Table 2 1 Tools Required for Service Calibration and Software Loading 5 Table 2 2 Software Firmware Revision Levels 6 2 3 Calibration Procedures BP Calibration Ee RE EE 7 ETCO Calibration 623Models only Section 2 3 2 7 amp 8 CO Reset 623Models only Section 233 9 Printer Calibration Section 2
13. WELGH ALLVN ATLAS MONITOR 7 Section 3 Troubleshooting 3 1_ Functional Test and Initial Diagnostic ALARMS SOUNDS 8 WELCHALLYNATLAS MONITOR 134 Press lt PRINT gt and look at waveform printout Look for darkness thickness of lines legibility of text blurring blooming of text 135 Press lt DATE TIME gt lt TREND gt 136 Get Advanced Configuration menu 137 Press PRINT and look at text printout 137 1 If feeding problems Mechanical inspection of printer replace motor drive platten 137 2 If waveforms too light or dark Calibrate 137 3 If text too light or dark in configuration screen press Select until Printer test pattern is highlighted then press HR Alarms Off gt button then press Set to lighten or darken print 137 4 If incorrect printout missing elements miss ing grid etc Troubleshoot further Software firmware 138 Review versions written down earlier and compare to latest available and also make sure that all components are compatible with each other See table 2 6 in this document Power on beep 139 Turn off system and turn on Should hear loud Power on beep ECG pulse tone pulse volume control saving set tings HR ALARMS Off gt button 140 Connect ECG simulator 141 Should hear heart rate beep at constant high pitch 142 Press SpO volume button 8 times Should get quieter and finally silent 143 Press lt DATE TIME gt lt PRINT gt to Save set
14. gt SRESET_n gt A10 be VDDH VDDH O Q TP53 TP54 US SP SDRAM 1Mx16 GPL0 CS ni AAA CLKOUT gt BS AB 0 3 gt FLASH 512Kx16 NC4 NC1 NC2 RY BY d AMD N C AMD RY BY 9 15 VDDH Release to Production 5 39173 3 18 99 m Component change for 5 39353 zm rss frequency modulation C Change Reset IC U3 LPP No Load C40 5 39830 6 24 99 Boot Configuration Pull Up 0 1 0 0 1 0 0 11 1 1 0 0 0 0 O 0 arbitration R57 see page 4 1 100K O internal Ts MSR ip 0 reserved reserved 0 0 External 7AAHC244 lt Boot Configuration Latch Active during power on VDDH Me oe TA lt ICRON N C ICRON Vpp 3 13 LO d 0 interrupt prefix is 0x0000 memory controller is active after reset 0 16 bit boot device 1 1 IMMR base is Oxfff0 0000 1 1 DBGC mode 0 0 DBPC mode bus division factor Welch Allyn Inc Drawn Jim Belesiu Mar ETT Schematic 620005 dsn pes ea Jim BelesiulMar 5 1999 itle SIT AS Flash SDRAM and HRESET Config Word Approved 3 19 99 Size Document Number Rev ee 620005 C elease For Production J Bello 3 19 99 Date Thursday June 24 1999 Sheet 4 of 6 Recorder Data x Recorder Data Latch x Recorder Clock x Recorder Strobe x Recorder Motor Step x NIBP Offset DAC x CLKUSR 69 RDYnBSY 67 Releas
15. 1 Sp0 displays inaccurate Possible patient physiology problem Sp0 1 Possible patient physiology problem ECG 1 Use modified electrode placement on chest walls IR waveform not displayed dashes Poor signal LA RA placement Service Manual 6200 43E Rev A WELCH ALLYN ATLAS MONITOR 13 Section 3 Troubleshooting 3 2 Chief Complaint Cause and Corrective Action BP measurements inaccurate Incorrect cuff size Try different cuff refer to Operator Manual for Incorrect cuff placement sizing information and proper cuff placement Possible patient physiology problem Calibration needed Calibrate Pressure leak BP1 CET RS amma a reseo mona ELTERE Cannot take reading in time Incorrect cuff size Try different cuff refer to Operator Manual for Incorrect cuff placement sizing information and proper cuff placement Patient movement Possible patient physiology problem Calibration needed Calibrate Pressure leak BP1 Cannot achieve target pressure Calibration needed Calibrate Initial pressure set too low for patient BP1 physiology Hold pressure too long Software problem BP 1 Valve problem Reload Software Replace main board Dumps pressure while inflating Software problem BP1 Valve problem Reload Software Hardware sensor problem Replace main board TEMP a Readings inaccurate Incorrect probe placement See Probe insert material Possible patient physiology problem Poor physical contact with p
16. 5 w IER X 2 A 9T HOLIMS AvZ O A909 N N gt o D 22 Cer a unol9 SZrzi ST HOLIMS Abz O P z A N H23439 033 lt 289 vl viva PMAD p E lt lt o O ET aNNOY9 J LLI ejeq 294 el 29019 x 9 zt qNnouo 20 2 28 d A o no a HOLVI T S TI ANNOYD Le Il 380uls 9qons eu 8 Nor ER 3je1 eje q 2a y OL ASE 3 E 6 d3T NO2V 6 ANNOYD NU 9 N 8 viva 031 8 aANNOYD ASI g p L ANNOYD SS L annoy9 dAS QOWDSU y 9 V1Vq A33 A 9 INNOYD PAJJSUU JJON m S uQ jddn s 3 ui S 3gowuls QAGGMSPSU cg v N H21V1 A33 b CHOLSIWH3HL BoldA d1d q iIS I INO 5 T YOLSINYJHL l E z 19079 A3 e z HOLIMS AvZ I AE HOLIMS Apz 91 1 HAUMS Ar n n HOIIMS AvC SI N I viva yt Cd 42019 et a N HOLW1 ZI z O a 2 c lt 380Y1S IT E lt H aer Ot O O L m GNNO4D 6 n a gt Z annoys 8 gt L n lt E annou z Q ox a GNNOWSJ 9 2 u u H n gt dz a 3gouis s z u p m lt 9 m d 2 lt mx T WOLSINMIHL v z m lt a O a u u a lt mx T YOLSIMY3HL gt 7 lt U a HO LIMS Abz z 3 ul lt lt T HOLIMS AvZ I u oL al m lt d z O a e lt punog NY9 C LLI O gt N a ZS gt Ong a a O 2 uv LL LLI A 0 m lt Atlas Drawings and Schematics Drawing Number Rev SheetNo Size Name Description 62008 B tof5 C 9 FrontPanelDisplay Board Schematie 62008 B 2of5 C Keyboard Scanner Schematic 62008 B 30f5 C Temp PulseLEDDrves Schema
17. 5 02 ARE IN e y 620021 3 ANGLES Ee SCALE NONE HE Tt NOTES El N ZA MOLEX 22 11 2042 WATER TRAP SENSE MOLEX 22 29 202 en CO AD INO PRYON L C IOI GENERIC SUBASSEMBLY P N 000 10100 NOMINAL LENGTH FROM PUMP BODY TO TUBING EXHAUST 13 4 INCHES NOMINAL LENGTH FROM SENSOR BODY JO FEMALE EUER INLET Ser NCHE x WATERTRAP AND WATERIRAP RECEPTACLE REQUIRED FOR OPERATION PACKAGING IO BE APPROVED BY WELCH ALLYN HANDLING AND PACKAGING 10 PREVENT DAMAGE DUE Ot SD DENDINO AND rte DAMAGE SENSOR er INE ROM WATER BERENS IRAP N APA PE REV DESCRIPTION EGNEECO INIT DATE CKD 77 eli A RELEASE TO PROD ENG 5 39363 JRS 4 14 99 T W B CHANGE PRYON P N TO 000 10100 5 39549 JRS 5 5 99 T W O O O O i 7 U NN DI 3 900 I UU m O O O 7 N POWER AND COMMUNICATION LAM Me GE Si o 90 L X PART NO DESCRIPTION THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION DRAWN DATE WJM 01 Apr 99 APPROVED DATE MATERIAL Le 4 1
18. LABEL 620377 2 NELLCOR PATENT LABEL 620378 1 ATLAS KEYPAD 620378 2 ATLAS KEYPAD 620378 3 ATLAS KEYPAD 620378 4 ATLAS KEYPAD 620378 5 ATLAS KEYPAD 620378 6 ATLAS KEYPAD 620379 501 MONITOR BOX W INSERTS 620385 SUB LABEL DISPLAY 620386 FASTON TAB 620387 SHUNT 620388 1 LABEL NONIN SENSOR 620388 2 LABEL NELLCOR SENSOR 620393 PWR SUPPLY INSULATOR LABEL 620394 1 WASHER SHOULDER PLATED 620395 501 REPLACEMENT LAMP SUB ASSY 620402 SPACER DOOR 620403 FLAT TIE HOLDER 620524 CABLE CO2 TO MAIN BD 761077 1 TIE WRAP Appendix B Atlas Repair Parts Page 2
19. MAP Second trace selection Temperature units Respiration speed CO2 units Verify manometer Reset to factory defaults Battery test Calibrate CO2 CRT test pattern Printer test pattern LED test Button test Display A D channels x Also note that this is for the 623xx system On a 622xP system delete the CO Reset box the Calibrate CO item and the CO units item On a 621xP system delete the CO Reset box the Calibrate CO item the CO units item Respiration speed item the Temperature units item and the Battery test item On systems without printers 621x0 and 622x0 delete the Printer test pattern item P The Display A D Channels also lets you press SET up and down to display additional sets of information but does not change the menu page that you are on just writes different information on the right side of the screen 4 WELCH ALLYN ATLAS PATIENT MONITOR SERVICE MANUAL 6200 43E REV A Section 1 General Information g y d m ja P E LA G CG josuac Hewi ad D an CEN S TOS SJSALIQ a saad oc pajejos Jo juoz pasos psyejosy duet D SMELSnug wajysAsqns SJSALKC 9X3 d amp IN ods zez SH pu3 1u01J GE d Mid mis HOZIV ONO z ZEZ SH ILL ZEZSH UL L JSWIL Oldo Lyn L Luvn sasas dius Z JOU auu SNQ dS eAM E GE LEEHJdM WajsAsqns Add EIIN 99015 Aoc q 8 peo Eat FIPPSDELV c I
20. NS para y P64 PCE TP66 POS E 1 CLKOUT yy a gt gt gt P70 S EES Pci LO TP74 reeL P78 TPS8 A PA4 TP6t 1 pas Uer e p TU lt PAG TP 1 par TE SE PA15 TP68 711 KRDMR n TPO 2L SPIMOSI PO 1 spPIMISO TPO 1 C KSPISEL n TP o SPICLK TP7RO X Video Clock 3 Drawn Designed Checked Approved Release For Production J Bello 3 19 99 Date Jim Belesiu Mar 5 1999 L Phillips 3 19 99 Release to Production 5 39173 JAC 3 18 99 LPP Component change for 5 539353 gc 4 15 99 ZIP frequency modulation Change Reset IC U3 LPP 6 24 99 C No Load C40 3733830 Welch Allyn Inc Schematic 620005 dsn Title Atlas CPU Subsystem Size Document Number Rev C 620005 C Thursday June 24 1999 Sheet 1 of 6 Release to Production 5 39173 3 18 99 VDDH R76 SCL SCD SPl data in VFLSO VFLS1 DSDI SRESET n RS423 CTS PC10 RS423 Rx NIBP Fault SpO2 Rx NIBP 15mmHg NIBP Overpressure AC On PA15 ETCO2 Rx NIBP PWM ADC Rec Paper Out PC11 TMS EKG PWM ADG Spare 3 Batt ID PB16 VDDH R16 Deiere COD EPUM TS n 10K Burst n PASE O Sorte WAIT B n p po E VDDH R91 10K IP_B4 IP_B6 FRZ DREQ1_n DREQ2_n On Standby Key ao a NIBP2 PW ADC R74 SCD I2CSDA SCL I2CSCL SpO2 Rx SMRXD2 SpO2 Tx SMTXD2 100 R77 ETCO2 Rx SMRXD1 ETCO2 Tx S
21. Select to highlight CRT test pattern 48 Press lt BP START CANCEL gt to show test pattern Examine display 49 Press any key to end display 50 Press lt Select gt to highlight Printer test pattern if fitted 51 Press BP START CANCEL gt to start test pattern 52 Printer should print test pattern 53 Press any key to end display 54 Examine printout 55 Press lt Select gt to highlight LED test 56 Press lt AUTO gt to turn on all LEDs 57 Press lt BP START CANCEL gt to show automatic test pattern 58 Watch for a while look for glitches in pattern 59 Press lt Set gt to go to manual mode and step through individual segments if needed to observe a problem 60 Press lt Select gt to highlight Button test 61 Press BP START CANCEL gt to start test 62 Press every button on system BP START CANCEL gt last 62 1 Verify that buttons match up with their names and that all buttons are functional 62 1 1 If names don t match indicates memory corruption Replace main board 63 Press Select to highlight Display A D channels three or four screens worth 63 1 Write down all values for later review 63 2 Press Set and write down all values for each screen 64 Press Trend to return to Idle screen 65 Connect the BP port to the BP simulator BP test 66 Set the simulator for a normal reading 140 80 100BPM NSR 67 Press BP START CANCEL gt 67 1 oystem should start pump disp
22. Video HSync 274 Log BattlD J3 Connector Y ili Spare 3 Eg 29 30 1 C39 Power Sync NEED 32 Rec Motor Step 3 047uF A Vocup 337 534 DEEG E NIBP Valve Close 35 536 R16 po E CON2 Video VSync EE YA 538 _ Speaker Audio 3 48K C1 NIBP Offset DAC 394 540 CON4 047uF Rees S NIBP2 PW ADC Eze 544 3 3V 5V 4 450 46 Video Data y EE NT PE Nuseca RS232 CTS Ke GDL Nuse Cal Front Panel Rec Clock 514 Eso Rec Data Latch Disp la Connector To PIC i og pad Hee Strobe LIE Kev clock Da l S On Off Ke HRESET Ll 556 Kse SCL y 57 558 pj U3A J8 5V 590 560 74HCT08 CON14AP Key Clock b G C5 C4 IE I al s U3B 74HCT08 ED Data Laas AC 12V fuse lt Y Q1 MMBT3906L ACON LED po gt 10K Jumper wire U3D Q1 e from J4 20 to 74HCT08 e RE TP19 Speaker Drive Bs Recorast Board Ed SER TP20 43 3V D 5V 4 7uF 2 c p Connector ne TPS s ae Q Audio Shutdown d 10K Y Q2 Q2 R21 TP14 TP15 ACON 2 i MMBT3904L 10K o Q9 Reo Motor Step T f ipic TP25 Y R4 Reo Data Latch L RmeSme Sr C36 Ji 10K Yao Rec Clock Rec Data 4 7uF R17 SP Vbackup gt 1 A De Caka a Se 047uF Pu 7 1 8 SM Pagel D Rec DCV gt a i3 14 A lt Rec DCV S 3 g R22 E Q U9 CON3 2N7002 li 20 22 FSRETSmp D TP23 TPA301 4Vpp max B Es 55 IM ji R18 U9 3 1 Pg gt 7 Rec GND gt B lt Rec GND ez PIC Data CIkIn Osc1 RB5 D E enim e On Off Ke Clk
23. X NIBP Pump On R247 R248 1K 1K TP225 R235 NIBP 3 48K U210 2 PWM A D Converter R237 TP228 464K Q U210 MAX941 U207B 74HCTOO PWM A D Converter Welch Allyn Inc Schematic 620017 dsn Initial Date Eis dors i NIBP ELECTRONICS Checked L Phillips 3 16 99 Approved Z Psenionik 3 16 99 Size Document Number Z Psenicnik 3 16 99 C 620017 Release For Production puse JE BOO 3 16 99 Date Tuesday July 13 1999 Sheet X NIBP PWM ADC gt gt Rev E s 5V gt iso 5Vdig gt iso 5Vdig lt C406 100uF C403 C430 047uF 047uF S S S NS s 5V lt ud ie O ERR C415 n tuF U403 LP2951C S S NS NS s 5V lt lt U404 C421 79L05 ie C424 u 047uF S S NS TP452 L401 Y 220uH fVcc lt lt C431 C434 10uF 10uF S S TP468 L402 Q 220uH fVee lt lt C432 C435 10uF 10uF S S TP461 R415 lt gt 100 f 5V lt lt C416 047uF Nonin SpO2 Connector J401 Luv J403 2 O gt Ges NNNM C419 4 10uF CON4 NS S sSpO2tx Nellcor SpO2 Connector J402 Lu et o ET lt SpO2 Reset Se ER ET TA Be Sp ME T 44 CON14AP S S C427 C428 C429 047uF 047uF T 10uF S S Release to Production 5 39121 JAC 3 15 99 LPP See ECN worksheet 5 39455 LPP 4 27 99 LPP 5 39821 LPP 6 24 99 LPP 5 39936 LPP 7 9 99 Improvements for ESD RFI and Fast Transients Correct Respiration Diff Amp Topology M
24. and warranty information read and understand the Atlas Operator s Manual part number 6200 42E English Other languages are available 1 1 About the Atlas Monitor SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS PATIENT MONITOR 1 Section 1 General Information 1 2 I Allservice and repairs must be performed by fully trained Help Information and properly equipped personnel using genuine replacement parts and correct procedures Failure to do so will invalidate the product warranty Safety Warnings Read and understand all safety warnings and service notes printed in this Service Manual and the Operator s Manual part number 6200 42E If in doubt about any precaution or procedure for phone help or to order additional copies of the Atlas Operator s Manual contact Customer Service Welch Allyn Inc 4341 State Street Road PO Box 220 Skaneatles Falls NY 13153 0220 U S A Telephone 1 800 535 6663 When calling refer to the model number on the bottom of the Atlas The Model Number is the first three digits of the Serial number number found on the bottom of the Atlas Treat all returned opened Nasal CO2 Sample Lines and watertraps as Bio Hazard material and dispose of them in an approved manner Troubleshooting assistance is contained in Section 3 of this manual to help determine which board is malfunctioning This manual does not support repairing the printed circuit boards Year 2000 Information The Atlas is Y2K com
25. fVcc NE 3 e U703A R708 C707 o SE NE AD712 1 96K 330pF co AD712 Left Arm gt ES 7 _U702 2 6 fVcc R713 1K R710 464K fVee U702 6 VE R714 15 8K NE 2 7 4 Gain and Filtering The DC content baseline resistance of the respiration signal is not needed so the signal is next AC coupled and additional gain applied before digitization Low pass filtering 1s performed at this stage to reduce high frequency noise outside the respiration signal bandwidth A baseline reset circuit transistor switch Q701 is used to quickly restore the high pass pole if excessive DC voltage is present for example following a Leads Off condition Appendix A 10 14 99 B W 06Hz to 16 Hz Nec Gain 1000 B W 10Hz C712 R720 pa 3 3uF 100K D605 C gt 2 Resp AC U703 5 5 An Resp R718 R719 C713 825K 51 1K x 0 1uF Q701 d E E 2 R722 Q701 3 316 MMBF4393L 1 C714 047uF v E E Q701 D706 MMBD1503A lt Resp Reset m m R723 1Meg NE 2 8 SpO 2 Circuits The SpO2 transducer senses oxygen content of functional arteriolar hemoglobin through the use of light red and infrared passed through the sensor The reflective characteristics of hemoglobin at the wavelengths used allow the pulse oximetry circuits to obtain changing saturation levels This data is then processed to obtain the oxygen saturation percentage and pulse rate Nellcor or Nonin Medical provides the SpO2 board Nonin only for the model 621 The SpO2 board i
26. lt TREND gt to access Advanced Configuration menu 91 Press lt Select gt to highlight ECG lead set and press lt Set gt to select 5 wire 92 Set ECG gain to Automatic 93 Set ECG speed to 25mm s 94 Set ECG bandwidth to Monitor 95 Set Second trace selection to ECG Press lt TREND gt to return to idle screen Should see 95 1 ECG cascading onto second line 95 2 Scale bar on left of top line 95 3 Heart rate displayed as set on simulator 95 4 Lead Selected Il 95 5 Pulse tone high pitched Press lt LEAD SELECT gt and step through each of the lead settings Should see 95 6 Different looking ECG waveforms 95 7 Heart Rate will go to dashes and alarms on some leads 96 Set lead selected to II SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 5 Section 3 Troubleshooting 3 1_ Functional Test and Initial Diagnostic SpO Temp CO 6 WELCHALLYNATLAS MONITOR 97 Press lt DATE TIME gt lt TREND gt to access Advanced Configuration menu 98 Change Second trace selection to Respiration 99 Press lt TREND gt to return to idle screen 100 Shouldsee 100 1 ECG on top line 100 2 Scale bar on left of top line 100 3 Heart rate displayed as set on simulator 100 4 Lead Selected Il 100 5 Pulse tone high pitched 100 6 Respiration trace on second line 100 7 Respiration rate displayed as set on simula tor 101 Disconnect ECG simulator 102 Connect SpO cable and cuff and install cuff on
27. medical grade offline switcher provides 12VDC from a universal AC input 85V AC to 264 VAC 50 60Hz The battery is a rechargeable 6 Volt 6 5 Amp Hour Sealed Lead Acid Battery and will provide about 1 5 hours on a fully charged battery Battery Life depends on usage especially printer usage NIBP cycles and CO2 operation The unit will operate from AC when the unit is plugged in and switches to battery operation when AC is removed The battery is automatically charged whenever AC is connected The following supplies are generated on the Atlas Main Board 12V DC Input Output of AC DC supply or Battery Supply for CRT and miscellaneous analog circuits 5V DC Input Output of Battery Charger or Battery Supply for front panel LED s 3 3V DC Input 5V DC Supply for CPU board Backup Regulator Input Output of AC DC supply or Battery 3 3V supply for real time clock and On Off circuits Battery Charger Input Output of AC DC supply Charge SLA battery Q303 12VDC Regulator gt gt 12V Converter EES Backup On Off Regulator Control lt On Off Circuits Battery AC Not Present T Battery Charger ES gt gt AC Present DO DE CLfomits Block Diagram AC DC E 5VDC Regulator gt gt 5V 3 3VDC Regulator gt gt 3 3V 1 2 On Off Circuits 1 2 1 Backup Regulator and Micro Controller A 3 3V low backup regulator U307 provides power to the On Off circuits and provides power to the
28. printhead 12 WELCH ALLYN ATLASMONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 1 34 Slide Power Supply cases apart 4 1 35 Location of Power Supply fuse 4 2 MODEL 200 Re assembly 4 2 1 Reassemble in reverse order of disassembly with special attention to paths for cables and tubing Two types of screws are used Dis play PCB is lastenec with self tap KN Section 4 Disassembly and Repair Domestic 4 2 2 Detail of Pump Valve CheckValve subassembly for reassembly 4 2 3 Printer chassis rests on lip at back of case 4 2 4 The IEC connector must be centered in the hole before 4 screws can be installed 14 WELCH ALLYN ATLASMONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 2 5 Plug MCU PCB in like this 4 33 Other models dissassembly reassembly Due to the similarities between the ATLAS models only key points are shown Refer to the latest revision interconnect drawing schematics and layouts when servicing this product SERVICE MANUAL 6200 43EREV A 0000 WELCHALLYNATLAS MONITOR 15 Appendix A 10 14 99 Theory of Operation Model 622 623 1 DC DC Power Supply 1 1 Overview 1 2 On Off Circuits 1 2 1 Backup Regulator and Micro Controller 1 2 2 18V boost converter and FET ON OFF switch 1 3 12V Boost Converter 1 4 Battery Charger 1 5 Linear Regulators 5VDC and 3 3VDC 1 5 1 5V regulator 1
29. s s 2 2 A D Circuits 2 2 1 PWM A D A pulse width modulator is used as an A D converter The PWM runs at a 1 2KHz rate synchronized by the A D sync signal A D sync is low for 52 1uSec high for 781 25uSec Using the values shown the integrator will ramp down 10 01V and ramp up 25V The voltage at the integrator output U601 1 is limited to about 5V 5V 73 2 83 2 Vdiode Then the integrator starts at 5V and ramps linearly down to 5V The analog input voltage to be digitized and the integrator output are the inputs to a comparator The output of the comparator is low at the start of an A D cycle and switches high as the integrator ramp drops below the input voltage being digitized see the timing diagram below A D conversion is accomplished by measuring the width of the PWM output signal The A D timer runs at 25 1 5MHz then the A D resolution is about 21000 counts over 14 bits Hysteresis is added to the comparator to avoid oscillations during switching Note that since the output of the comparator is low at the start of the A D cycle a resistor divider is formed at the comparator input This divider reduces the Analog In signal by 0 75 464K 464K 3 48K Appendix A 10 14 99 R605 3 48K e 8 464K Analog In gt U601 3 C603 f 5V 680pF 9 8 ee A U602 3 O gt gt PWM Out 0 R606 LM311 U604D f 5V 3 48K x 74HCT04 N 14 PWM fVee NG A D Converter iowa 11 510 U604 10 7 U604E 74HCT04
30. simulator or your finger 103 Set simulator to normal readings 104 See pleth signals immediately 105 See SpO percentage within several seconds 106 See Pulse display at the same time as SpO percentage 107 Disconnect SpO cuff from simulator 108 See error SpO cuff not detected 109 Unplug SpO cable from Atlas 110 See error SpO cable not detected 111 Temp display is blank 112 Connecttemp probe 113 See temp display of ambient temperature 114 Disconnect temp probe 115 Temp display becomes dashes No alarm or error 116 Press lt DATE TIME gt lt TREND gt 117 Get Advanced Configuration menu 118 Set Second trace selection to CO 119 Press lt TREND gt to return to idle screen 120 Insert watertrap with tubing attached 121 Should see 121 1 Hear pump motor start 121 2 See solid line waveform on lower trace 121 3 See dashes in Respiration Rate 121 4 See dashes in mmHg or 96 or kPa as configured SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting 3 1 Functional Test and Initial Diagnostic 122 123 Breathe gently and repeatedly over end of tubing Should see 123 1 See waveform within seconds of breathing 123 2 See respiration rate non zero within one minute 123 3 See CO concentration non zero within one 124 125 126 127 128 129 130 131 132 minute System must have been plugged in for 24 hours for areal batte
31. 047uF Clamp Clamp NN V D701 MMBD1503A D701 3 TP701 R701 1 96K D702 MMBD1503A Na D702 3 R702 1 96K D703 MMBD1503A a D703 3 D704 MMBD1503A TP721 Release to Production 5 39121 JAC 3 15 99 LPP 5 39455 LPP 4 27 99 LPP See ECN worksheet U703 Improvements for ESD RFI and Fast Transients Correct 5 39821 LPP 6 24 99 LPP Respiration Diff Amp Topology Mods to U2 clock line Resp C716 E gain amp ECG supply and 5 39936 LPP 7 9 99 047uF f 5V NVRAM pullup Y E C718 047uF E U701B 74HC74 VE Isolation Respiration parr er Drive Circuit f 5V Y C719 l f l l 4 7uF iso 5Vdig iso 5Vdig N N E C705 C701 e R703 EE y s U701A R705 0 1uF 1000pF O 31 6K O 74HC74 TP723 2 15K U710 5V C701 1 RespDr O R725 HCNW4503 Y 2 15K E TP704 resp clk u710 6 g Q 3 lt R706 4 215 C721 iso701 a 100pF lt FE Pwr Sync C702 TP705 R704 4 dis DWE 1000F 31 6K Resp Off C702 1 RespDr R724 TP707 196K Q d705 c gt gt Resp DC C720 047uF fVcc Respiration Diff Amp C706 TP708 E 330pF O Se TP709 U702 3 Q U702 1 D705 B W 06Hz to 16 Hz Nec Gain 1000 MMBD354LT1 Bo lo ee R709 R711 C712 R720 Tate w 464K 15 8K 3 3uF 100K O TP713 Resp AC U703 5 Q gt gt An Resp VE Q R717 R718 amp R719 C713 R712 3 16K C711 825K lt 51 1K 0 1uF HS 1K 0 1uF fVcc WE E N O A TP718 TP717 U702B U703A Cron T20 a N AD712 R722 330pF lt gt 00 Q701 TP719 316 U702 5 SC MM
32. Elgar Supply 3 Set Voltage and Frequency 240VAC 50 Hz after self test has completed Key strokes Shift Range 300v Shift 2 4 0 Enter V F frequency 5 0 Enter Out 4 Plug in Biotek 601 Pro to front panel and power up Biotek 5 Toggle Class Type button until Class L Type CF displayed on Main Menu if necessary 6 Select Test Standard IEC601 1 by pressing the More key and then toggling the Down Arrow Then select with Enter Once selected press ESC 7 Connect ECG leads to Biotek in accordance with color code directly above the top row of sockets AP RA wht RL grn LA blk LL red V1 brn 8 Select Patient Leakage Current Connections All Earth up down arrows Norm Pol polarity Earth earth L2 L2 Class I Type CF no indicator lights are on in outlet control panel dual rev pol no earth no L2 all off 9 Select Patient Leakage 7 to provide AC power to Biotek AC socket 10 Turn on Atlas Monitor 11 Press Mains on Applied Part 8 11 Record All Earth Norm and All Earth Rev result pass fail on Atlas Monitor Test Result form If failure then place unit on Debug shelf 12 Press Patient Leakage uA 7 13 Record Patient Leakage result pass fail on Atlas Monitor Test Result form If failure then place unit on Debug shelf 14 Turn off Atlas Monitor 15 Remove ECG cable from Atlas 16 Remove AC cord if no printer and proceed to Dielectric Tests 17 If printer continue to Gr
33. HO21VT V1VQ 23W 8d d INNOYD H NDS x qiaiHs 318v2 F q1HS L q13IHS 418V9 lt z z a a 9 AZT c VIVQ DId ot ASES 9 INITIdALHOSNAS L NYO 9 INIT 3dAL YOSNIS e a 6 S ASE I 3unss3udu3AO dalN 6 9 N m Is 1VNDIS 20010 OLOHd L xvo3 S IVNDIS 20010 OLOHd O gc E x x v ale onr i ozii 0 XL 2 2 SN 8 XL7zodss anos v Y nt Z OIN v DIN z erm rimo a ai 6 dNNOWS L AS S xizodss e stl INN 3AIHQ 031 INIT JA 037 5 N alan na o c z NO A1ddfiS 23u 8 QNnOu5 9 J N anos z 3A z il su 3NH 3A ua 031 z NIT SAG q31 z gt 1 O 1 DOYAAN DId H Ag e s anos NH I N4D 1 Tl N 9 N I 9 N x Hds SS m i SVSWMSa8SiN L l13S3w z04S O z x gt m og Ld Lf IOp Ord D ul KEE 5 E D G NE EH GNDS Uu u Lei N AH N is Aviawziovinoa g E v JNNOHD t qN9s O gt I anos anos m ANDY L34VS dgIN i 2 a ul 2Qv WMd 93 u Ov 0vd 2 b u nj 2 9555 m WD z z lt x 20rd cov 2 TE ER Qe lt 6 xulo uE uz Z I JNNOWD w O O lt x 27560608 LLI aBl sy x m8 gt gt d Q a x 5 a E a aw w Z E E 7 E g g m 3 E gt 0 a 2 w 2 a H N m t m o J N E E a lt LU el fa e 9 z lt lt U 2 9 D T E ul z z DIN z E z m LLI F m 2 x 22 2 2 x D N D e lt O E AVI38 TLIVINOD 1 EE EE e z 6 z E d d d o HOIH O3W ISPOW T08 X amp E T08d LU O un 6 zz E UNOS tT s N Z 9IQASHOSI ET KE ei re annowd ot L ous x LL x anos tt qat 6 l gay Nu
34. Ka D O A yn SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 5 Section 2 Service Table 2 2 Software Firmware revision levels 0 E V1 00 0 E V1 00 6 WELCH ALLYN ATLAS MONITOR SERVICE MANUAL 6200 43E REV A Section 2 Service 2 3 1 BP Calibration Need 500cc vessel approximate calibrated digital manometer squeeze bulb with one way valve tubing and T fittings PC with HyperTerminal serial cable 2 3 1 1 Connect manometer bulb and 500cc vessel to BP port with T connectors Atlas to PC with serial cable 2 3 1 2 TurnAtlasON and start HyperTerminal on PC 2 3 1 3 Enter commands on Serial interface Pangea gt bp valve close lt ENTER gt Pangea gt bp safety off lt ENTER gt 2 3 1 4 Enter command Pangea gt bp cal 5000 Do not press lt ENTER gt yet 2 3 1 5 Raise pressure with bulb to as close to 50 00mmHg as possible or slightly higher Let the pressure bleed down toexactly 50 00mmHg Now press ENTER Take no more than 3 minutes for this step 2 3 1 6 Entercommand Pangea gt bp cal 25000 lt ENTER gt 2 3 1 7 Repeat step 2 3 1 5 with 250 00 as target Press lt ENTER gt when pressure deteriorates to 250 00 mmHG 2 3 1 8 Entercommand Pangea gt nvram write lt ENTER gt 2 3 1 9 Disconnect serial cable and instruments and cycle power on Atlas BP cal complete 2 3 1 10 Verify accuracy of pressure settings by repeating step 2 3 1 3 then 2 3 1 5 and compare Atlas front panel reading with S
35. MUR120 C12 01uF C10 Hor 22uF R29 100K 1000uF D4 R28 NY 1N4935 Brightness 19 955 Val d4 a Adjust Vg2 N Unused C13 TI Vvid tea Video Amplifier v 22uF b Grid2 D5 1N4937 74HCT04 d5 c U4D C14 C19 O1uF 5V R36 R37 O1uF Focus x 1 96K 1 96K Adjust 2 5Meg Eocus 74HCT04 C17 5V C18 01uF U4F Y 047uF Q Q8 2N3904 N R51 R41 KE i 74HCT04 D7 q8 e idout R48 1N4148 100 q7 Q7 BS170 C20 No Load 74HCTO4 N K ur ida Drawn Rick Myers Mar 4 Schematic 620011 dsn A eee ss ie E EEN Baad erlecuon Doar Checked L Phillips 3 9 99 Approved 3 9 99 ee Number Ge Release For Production Bell WO gt gt RecVdc Q2 MMBT3904L 424V Boost R7 2546 V nominal 84 5K 12V TP10 C4 Y 1000uF U2 fb C6 R12 uF A 10K C7 A U2 Y UC3843A 5V US NY 3 U2 comp Sy R13 Q4 5V 10 b a MTP30N06VL A J1 TP17 U2 Ref CON24A R6 Vpp 1 10K TP19 R15 pgs e jis 147 047uF 10K E Q4 s Rec Data Latch D gt 12V Q3 ISENSE S 9 2N7002 S A 172 e TP21 C13 L NA 2 5600pF R18 C14 Sy no load 1 A 2200pF 7 gt A G He Uu MMBT3904L 3 16K A R22 A 4 22K RecVdc gt le SES C T TP26 R33 D6 5V C18 d 1 47K 27V U3 10 d6 c e O U5E R24 74HCT04 GUN 1 96K NZ m ClkIn Osc1 RB5 A ULN2065 NZ Clkout Osc2 RB4 clk Vpp MCLR RB3 O ERRO RC5 TOCK1 U RC4 5V RC3 PIC16C505 U1B MC34072 5V U5D 74HCT04
36. Monitor 12 Remove ECG cable from Atlas 13 Remove AC cord if no printer and proceed to Dielectric Tests 14 If printer continue to Ground Continuity Test Ground Continuity Test Printer Models Only 1 Attach red lead from 601Pro to printer motor case 2 Press Earth Resistance 4 3 Record Earth Resistance result pass fail on Atlas Monitor Test Result form If failure then place unit on Debug shelf 4 Press ESC key 5 Remove red lead from jack and printer motor 6 Disconnect AC cord from Atlas At conclusion of last test of day turn off Biotek 601Pro and Elgar power supply EW371 CAUTION High Voltages are generated and used during the HI Pot or Dielectric Test DO NOT OPERATE THIS EQUIPMENT AND OR CAUTION RUN THIS TEST UNLESS YOU HAVE BEEN PROPERLY TRAINED AND ARE QUALIFIED ON THIS PROCEDURE Dielectric Test Three tests will be performed for Dielectric Withstand 1 Mains to Instrument Common 1500 VAC 2 Mains to ECG Output 4000 VAC 3 Mains to Isolated RS232 Models 210 220 only 4000 VAC Mains to Instrument Common 1500 VAC gt Connect the modified AC cord Connection 1 hot and neutral joined Connection 2 earth ground to the back of the Atlas Monitor Connect the black clip lead to the return jack of the Hypot 3500 Dielectric tester Connect the red clip lead to the HV jack of the Hypot 3500 Dielectric tester Turn on 3500D Press Set Set voltage to 1500 VAC with up do
37. NEON C507 22Meg U501B 220pF TP519 MC34002 lt gt D R511 1 Y E R558 22Meg D503 MMBD1503A Z fVcc VLdsOff TP523 TP524 Y Y U502 3 N503 R513 LAMP NEON C508 22Meg U502A 220pF TP53 MC34002 e R513 1 E R559 22Meg D504 MMBD1503A AN fVcc VLdsOff TP539 R514 O P 10K U502 5 N504 R515 LAMP NEON C504 C509 22Meg U502B 1 220pF 220pF TP543 MC34002 Y R515 1 NS E E R560 22Meg Ee VLdsOff D505 BAV99L TP560 R505 TP550 51 1K QO Right Leg N505 LAMP NEON C505 Y 220pF NS E Sw RLD RA gt ee fVee DG202CSE N TP505 d R517 10K 0 1 R518 1 21K 0 1 TP513 9 R519 10K 0 1 R520 1 21K 0 1 TP525 E Q R521 10K 0 1 R522 1 21K 0 1 TP540 E 9 R523 10K 0 1 U501 VLdsOff lt lt f 1 24V lt lt E C510 220pF C511 220pF C512 220pF C513 220pF vRL lt lt R516 10K RLD Amp U502 USOS U504 U505 U506 U507 U508 C532 047uF C533 047uF E E E E E E E X RA LA A D Inputs ee n Leads Off Sa eee lt LL lt V fVcc 506 Wilson co Network H529 TP548 d TP549 mux 10K Y Diff Amp U507A EE MC34002 ALA R544 10K 0 1 U508 R545 10K 0 1 DECO EEE and Fast Transients DESEE C544 1000pF R546 10K 0 1 TP557 TP558 U508 2 diff out U508A AD712 U509 U507B TP522 q e LMC7101 MC34002 d NE C542 fVee fVee 220pF R547 10K C545 0 19
38. R332 AX 01uF U305 pwr lt Ref Batcharge Current Limit 1 5 Amp U304 1 BAV99L D308 U304A MC34072 12V R341 10K IN AC 12V fuse R343 10K R342 19 6K R339 19 6K Q309 MMBT39068 X Ref Batcharge q 60 0 R343 1 D309 BAV70L U304B MC34072 Float Voltage l L0ELH o E IN AC 12V fuse Q310 b_1 Q310 2MMBT3904L R345 10K JE 1 5 Linear Regulators 5VDC and 3 3VDC 1 5 1 5V regulator A series pass 5V regulator is built using transistor Q312 and op amp U305A The reference for the regulator is the 5V reference from the PWM control IC U302 The output of the 5V regulator is turned off when the unit is turned off When the 18V boost circuit is shut down power 1s removed to U302 and then the U302 reference is driven to OV Setting the reference to OV will cause op amp U305 to turn the series pass transistor Q312 off When operating from AC transistor Q310 is turned on which will turn transistor Q311 off Power to the SV regulator is then provided through Diode D310 from the output of the battery charger circuit Note that this voltage tap is before the current sense resistor then load current on 5V does not affect the battery charger current limit circuit When AC is removed the AC On signal goes low and Q310 turns off The gate of Q311 is then pulled up to 11 4V 12V Vdiode Transistor Q311 then turns on and the 5V regulator is powered from the b
39. R65 1 21K On Off sw 5x5 Green On Off sw J2A AR D1 Trend ACLED 1 A Place capacitors Key Clock b rend rea AR E WE EE Mill s 3 R66 1 21K Key Data b 5 5 Silence Switch flex cable 5 flex cable 5 N D2 VCC Front Panel A Ee R68 1 21K FP Common d o 4 lt e e De e EA a LED Latch 1 R51 OYA LED Latch 2 316 HEADER 7X2 N On Led v D13 T1 8mm Green X On Standby LED TP Enable VCC So jik LED TP Data In N LED TP Clock Silence Button Break Away PCB LED TP Latch 1 E LED TP Data Out securo U1D 2 15K D10 Vcc Front Panel B LED TP enable VCC u19 out SR 74HC04 J3A T1 3mm Red NIBP LED Circuits 2 s Silence LED U1E Silence LED a 17 sj H LED NIBP Enable Sience Switch oS Cue x Sil Sw a e LED NIBP Data In EES ez 2 5 5 2 l Sw 74HC04 LED_NIBP_Clock si Sw b N 3 cable LED NIBP Latch flex cable 5 flex cable 5 m LED NIBP Data Out Ed LED SPO2 enable Front Panel C SW28 74HC04 1705124 LED_SpO2 Enable VCC VCC VCC VCC VCC LED SpO2 Data In LED_SpO2_Clock C1 C8 C10 C11 C28 Place one tantalum LED SpO2 Latch 4 7uF 4 7uF 4 7uF 4 7uF 4 7uF cap near each seven B segment LED group Front Panel D VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC C2 C3 C4 C5 C6 C7 C12 C13 C14 C15 0 1uF 0 1uF 0 1uF 0 1uF 0 1uF 0 1uF 0 1uF 0 1uF 0 1uF 0 1uF Place one 9 8 7 0 ceramic cap near each 10 5 VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC IC m Dar Welch Allyn Inc I I l1 lI C16 C17 C1
40. Sample lines as bio hazard material SR856 CO Calibration beyond the year 2021 8 WELCH ALLYN ATLAS MONITOR 2 3 2 4 Remove water trap from water trap socket 2 3 2 5 Message Install scrubber will appear 2 3 2 6 Attach scrubber to water trap 2 3 2 Insert scrubber water trap assembly into water trap socket Message Enter span gas value using lt Set gt button will appear 2 3 2 8 Change the default value 10 to the value of span gas being used calibrated 8 to 12 concentration known to 0 01 2 3 2 9 Press lt BP Start Cancel gt Message Sampling appears while the instrument is sampling the scrubber air 2 3 2 10 When instructed remove the scrubber from the CO water trap Do not remove water trap 2 3 2 11 Attach the calibrated source of CO gas to the CO side stream sampling tube as per Figure 2 3 2 11 2 3 2 12 Adjust the CO regulator just enough to allow a small amount of gas to flow out of the vent approximately 3 PSI Important Once positive flow is established let the it flow for one minute before pressing the Continue button and actually sampling After one minute press the Continue button to let the Atlas start sampling CO 2 3 2 13 Press BP Start Cancel gt Message CO calibration successful or CO calibration failed will appear on the CRT display Note Serial Communication is not the cause of a failure if the Prion Serial appears in the Service Screen Therefore the
41. Should see ECG on top line Scale bar on left of top line Heart rate displayed as set on simulator SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 31 Section 3 Troubleshooting 3 4 Diagnostic Tests Spo 1 Note The Nellcor or Nonin should be accurate to the simulators 2 or 3bpm for any in range settings on the simulators 32 WELCH ALLYN ATLAS MONITOR Lead Selected l Pulse tone high pitched Respiration waveform on second line Respiration Rate displayed as set on simulator If ECG waveform not seen If ECG waveform not cascading In Scale Bar not on top line If Heart Rate not displayed or displayed incorrectly If Lead Selected not shown If Heart rate tone not heard If Respiration waveform not shown If Respiration Rate not displayed correctly Re install software Replace CPU board Replace Main board Disconnect ECG simulator Turn system off and back on to clear state Connect SpO cable and cuff and install cuff on simulator or your finger Set simulator to normal readings see pleth signals immediately If Pleth signals not seen within 10 seconds goto SpO 2 See SpO percentage within several seconds If SpO percentage not seen within 1 minute goto SpO 2 See Pulse display at the same time as SpO percentage If Pulse display not seen at same time as SpO percentage goto SpO 2 Disconnect SpO cuff from simulator Technical alarm sounds See error SpO cuff not detected If alarm not
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43. and Fast Transients R206 R201 U203A C222 LM393 C201 Z Zz R202 01uF d P 12V 047uF o O C202 174 4 7uF TP207 P 5V O Q TP209 7 R210 TV 203 TP204 P 5V 4 464K A R203 R211 3 32K U202A 1 96K U208B MC34072 R209 MC34072 IK U207C Soe 74HCT00 Wang AAA F Suen TP240 U203B C223 LM393 Y ae I Over Pressure R204 Eat ste SC su t TP211 150 Y A j A C226 047uF L202 U207D Bead 74HCTOO x C204 R205 047uF 750 U202B 12V 6V P201 pwr MC34072 Y 9295 2d nbi 047uF R236 l ransaucer 3 83K TP214 Q202 4 R212 O MMFT2NO2EL 56 2K OmmHG 0 5V P201 Out R240 BT 10K Ka and C206 TP216 NIBP Safety 2 MMBT3904L lt 100K Q202 D 3 Comp 5 P201 6 022uF P 12V C209 Q r E 047uF C227 680pF P201 A XFPM 050KPGR P1 A A U204 3 U204 1 TP218 01 P 5V U204A Valve I Y Zero Adjust R213 MC34072 20mmHg range D202 Pimps x R244 R217 e BAV99L E 38 3K TP219 TP220 5 62K R214 O R216 Y CON5 10K 19 6K TP221 TP222 R246 NIBP Offset DAC gt C2071 ees Y Kar SE PWM D A NIBP A D SelC gt R215 76 8KHz 100K C207 c208_ U204B NIBP A D SeIB gt 1uF 1uF MC34072 R218 de NIBP A D SelA gt E B ai Q203 4 MMDF2N02E A lt gt N 4 i _ pv NIBP Valve Close gt X NIBP Pump On E R248 R249 1K 1K U209 4051 P 12V e P 12V C216 JALELV 047uF TP224 Print Temp 2 P4 25V C211 Transducer d T R225 PrimaryPres C R235 SafetyPres 3 48K A 047uF tl TP226 5V 2 U209 Out U210 2 NIBP PWM S A d R227 R228 A D Converter P202 Out
44. and reset until satisfied 2 3 4 4 Press Trend button to exit the Service Mode 2 3 5 BATTERY VOLTAGE CALIBRATION for models 622XX and 623XX NOTE CHECK BATTERY VOLTAGE CALIBRATION AFTER REPLACING MAIN PCB Need DC power supply rated 7 VDC at 5A Battery eliminator cable Atlas battery plug on one end interface to the power supply on the other There should be access for voltmeter probes at the Atlas end of the cable when it is installed DMM DVM with 10mV resolution on a 10V scale PC with HyperTerminal serial cable and connector 2 3 5 1 Connect serial cable to PC and Atlas 2 3 0 2 Remove battery from Atlas 2 3 5 3 Setthe power supply to 6 8V 200mV 2 3 5 4 Connect the power supply to the Atlas battery connector 2 3 5 5 Turn Atlas ON 2 3 5 6 Reduce the power supply to 6 0V SERVICE MANUAL 6200 43E REV A Section 2 Service 2 3 5 Measure the voltage at the battery connector at the Atlas to the nearest 10mV NOTE Do not measure at the power supply since cable resistance will introduce error 2 3 5 8 Atthe HyperTerminal type Pangea power cal XXXX lt ENTER gt where XXXX represents the measured voltage in millivolts no decimal point For example if you measured 6 010V at the battery connector use the command power cal 6010 lt ENTER gt 2 3 5 8 The Atlas will respond raw ZZZZ mV true 6010 mV OK where ZZZZ is the raw uncalibrated reading that the instrument made 2 3 5 9 Reduce the
45. heard goto Sound 1 If error not seen Reconnect SpO cuff to simulator Technical alarm stops Error message erased Unplug SpO cable from Atlas Technical alarm sounds oee error SpO cable missing SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting If alarm not heard goto Sound 1 Iferror not seen Re install software 3 4 Diagnostic Tests Turn system off and back on to clear state Verify that proper SpO cuff is being used Nonin or Nellcor Replace cuff SpO 2 Check cable connections between SpO board and Main board Replace SpO cuff socket Replace SpO board Press lt DATE TIME gt lt TREND gt Get Advanced Configuration menu CO 1 Set Second trace selection to CO l Press lt TREND gt to return to idle screen Insert watertrap with tubing attached Should see Hear pump motor start See dashed line waveform on lower trace See dashes in Respiration Rate See 0 in mmHg or 96 or kPa as configured If pump motor does not start goto CO If dashed waveform does not start Perform CO calibration If Respiration Rate does not displav dashes Per form CO calibration If CO concentration is not 0 Perform CO calibra tion Breathe gently and repeatedly over end of tubing Should see See waveform within seconds of breathing See respiration rate non zero within one minute See CO concentration non zero within one minute If waveform does not track breathing Perform CO calibration If respiration rate does
46. is flashing press right lt Set gt UP to change SPO LO setting to 99 Wait until SPO LO stops flashing 10 seconds Set simulator SPO at 90 Should hear Limit alarm If alarm not heard Press lt Alarm Volume gt but nat silent If alarm volume does not change Replace Display Board hardware If alarm volume goes all the way to silent Replace display board eight times Should get quieter Press Alarm Volume eight times Should get louder If alarm volume does not change Replace Display Board hardware Press lt Silence gt and start stopwatch Should be quiet for the time set in Advanced Configuration menu then alarm comes back on If alarm not silenced for set period Disconnect SPO cable from Atlas should hear technical alarm see error message If alarm not heard If message not shown Press lt SPO ALARMS Off gt button Should stop Technical alarm sound and erase error mes SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting sage and light LED in lt SPO ALARMS OFF gt button If alarm not silenced If error message not erased If LED not lit Replace Display Board hardware 3 4 Diagnostic Tests Press SPO ALARMS OFF button again Should hear Technical alarm sound see error message LED unlit in lt SPO ALARMS Off gt button Turn system off and back on to clear state lt CO RESP ALARMS Off gt button Press lt DATE TIME gt lt TREND gt Get Advanced Configuration me
47. la NIBP LED Drivers Phillips 3 24 99 Approved nS Size Document Number Rev elease For Production Pe J Bello 3 24 99 Date Friday July 23 1999 Sheet 4 of 5 E E VCC Release to Production 5 39251 JAC 3 23 99 LPP EM No Load D16 5 39485 LPP 4 28 99 LPP D13 to Low Profile R51 to 316 5 39994 LPP 7 23 99 Bargraph VCC u13 out LED SpO2 Data In 74HC595A TP177 10 LED Bargraph O R70 TP152 681 3 3 D7 D9 D12 T1 Smm Red T1 8mm Red T1 8mm Red HR Alarm ETCO2 Alarm SpO2 Alarm On Off On Off On Off d7 c d12 c VCC VCC SpO2 Hundreds d d D3 G G G E A E A E A I an Lp EE at D H C O c c g Lo g L5 A A Dp Dp D bi O amp L A Dp Anode 1 Anode 2 l Anode 2 Anode 2 74HC595A R63 74HC595A 215 7 SEG LED 0 5 7 SEG LED 0 5 7 SEG LED 0 5 D16 d16 c vcc KW VCC d SpO2 Hi VCC TP172 No Load 215 D18 KW A SpO2 Lo TP174 T1 75 Smm Green Clock1 2 LED SpO2 Clock gt LED SpO2 Latch gt A LED SPO2 Enable LED SpO2 Enable ___ gt Date Welch Allyn Inc SPO2 LED Drivers fera L Phillips 3 24 99 Z Psenicnik 3 24 99 C 620008 C Release For Production J Bello 3 24 99 Gate Friday July 23 1999 Sheet 5 o 5 idth Coil L3 inductance range hanged V ti A if e f ICa m p e r A Release to Production 5 39097 3 9 99 L
48. not show reasonable value Perform CO calibration If CO concentration does not show reasonable value Perform CO2 calibration If CO calibration did not solve problem replace CO board Remove watertrap from Atlas Turn system off and back on to clear state Press lt DATE TIME gt lt TREND gt SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 33 Section 3 Troubleshooting 3 4 Diagnostic Tests Get Advanced Configuration menu CO 2 Set Second trace selection to CO Press lt TREND gt to return to idle screen Remove and reinsert watertrap in socket Make sure that it seats fully If pump does not start Insert finger in socket and attempt to press microswitch If pump does not start Check connections between CO board and Main board Check connections between CO receiver and CO board Replace CO receiver Replace CO board Temp display is blank Connect temp probe TEMP See temp display of ambient temperature If display is not close to ambient temperature Cali brate Temp if out of spec replace probe repeat li still out of spec replace main board Disconnect temp probe Temp display becomes dashes If temp display does not become dashes Replace main board Turn power off and back on and see if anomaly returns Bad Boot 1 Re install software Repeat test If problem remains Replace CPU board Models 622xx and 623xx Fan 1 If fan does not start when power turned on Check Fan to Main board cable Replace
49. o SC Ek SE SEET C jr pr od ek A Au j qg al U3 4 Pa e SCH E j i Ez 15 a QH EP SH LD 74HC165 V7 D48 BAV99L gt gt On Off sw TP83 gt Key Data b TP87 CH lt _ Key Latch b TP88 Key Clock b gt Silence Switch Welch Allyn Inc 620008 dsn ke Sa Green aas 7 TT jp 32399 Ve Drawn Schematic Designed Karid ad iddjiaptav Board Document Number 620088 Checked Approved Rev LM of 5 Friday July 23 1999 Sheet b Release to Production 5 39251 JAC 3 23 99 LPP EM No Load D16 5 39485 LPP 4 28 99 LPP D13 to Low Profile R51 to 316 5 39994 LPP 7 23 99 VCC Temperature Tens VCC Temperature Ones Temperature Tenths LED TP Data Inf gt LED Data b Y TP5 74HC595A 74HC595A 74HC595A 7 SEG LED 0 36 7 SEG LED 0 36 7 SEG LED 0 36 VCC D R52 Degree F 215 D46 d u16 7 d46 c y VCC T1 75 5mm Green Q TP35 T1 75 5mm Green Temperature Hundreds d33 c d33 b TP37 VCC 7 SEG LED 0 36 TP42 SpO2 Pulse Rate Ones SpO2 Pulse Rate Hundreds D37 u18 15 7 SEG LED 0 36 7 SEG LED 0 36 7 SEG LED 0 36 VCC L 74HC595A IN TP62 TP63 Q Q TP59 LED TP Enabld 7 LED TP Enable ib cox S 1 sz MMA A A A A LED_TP_Latch gt atc u19 out LED TP Data Out lt G li AAN a Temp Pulse LED Drivers L Phillips 3 24 99 Approved 2 Psen
50. power supply to 5 6 volts You should soon hear the low battery alarm 2 3 5 10 Measure the voltage at the battery connector to the nearest 10mV 2 3 5 11 At the HyperTerminal type Pangea gt power cal XXXX lt ENTER gt where XXXX represents the measured voltage in millivolts no decimal point For example if you measured 5 590V at the battery connector use the command power cal 5590 lt ENTER gt 2 3 5 12 The Atlas will respond raw ZZZZ mV true 5590 mV OK where ZZZZ Is the raw uncalibrated reading that the instrument made 2 3 5 13 Finish by typing this will re boot ATLAS Pangea gt hw reset lt ENTER gt 2 3 5 14 Turn Atlas OFF and remove the power supply 2 3 5 15 Re Install the battery SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 11 Section 2 Service 2 3 6 TEMPERATURE MEASUREMENT SUBSYSTEM CALIBRATION 12 WELCH ALLYN ATLAS MONITOR 2 3 6 TEMPERATURE MEASUREMENT SUBSYSTEM CALIBRATION Need PC Serial Cable Hyper Terminal 1kOhm 2kOhm 1 1 2watt resistor Large RCA plug 1 4 2 conductor Short length of wire optional ooldering iron and solder 2 3 6 1Prepare Resistor Plug assembly oolder the resistor across RCA plug terminals 2 3 6 2 Plug the resistor assembly into the Atlas Temperature jack 2 3 6 3 Connect the Atlas to the PC serial port 2 3 6 4 Turn the Atlas ON NOTE Temperature display will show a valid temperature 2 3 6 5 Start HyperTerminal on t
51. real time clock on the CPU board The On Off circuitry is controlled by the mirocontroller U10 This Appendix A 10 14 99 controller performs the following functions 1 Monitors the status of the front panel ON OFF key If the unit 1s off and the ON OFF key is pressed the controller will drive U10 6 high which will enable power to the remainder of the instrument 2 At power up the microcontroller will drive the beeper for about 1 second 3 At power up the microcontroller will reset Shift Register U2 This will cause the following The front panel LED s are blanked The NIBP pump drive is placed in the off state 4 When the unit is powered on the microcontroller will communicate with the system CPU When the front panel ON OFF key is pressed the CPU will store away present operating conditions then issues a command to the microcontroller to shut instrument power off U10 6 is driven low which will remove power from the remainder of the instrument 1 2 2 18V boost converter and FET ON OFF switch The PWM controller U301 is configured as an 18V boost converter An N Channel MOSFET transistor Q303 is used to switch power to the 12V regulator As Q303 1s configured as a high side switch it 1s necessary to develop a gate voltage of proper magnitude to turn Q303 on Then to enable power to the 12V regulator the following takes place 1 The microcontroller drives U10 6 high turning transistor Q302 on 2 Transistor Q301 is switched
52. seconds after BP dashes come on 11 Three dashes in PULSE takes several seconds after BP dashes come on 12 Pleth none or a single bar at the bottom or two bars at the bottom 13 No lights in TEMP 14 No lights in ALARMS OFF buttons 15 X lit on AUTO 16 AC lit 17 CRT display comes on slowly if cold quickly if still warm from last use 18 May see version string in center if comes on quickly not a problem if not seen because it comes on slowly 19 CRT three dashes for Heart Rate 20 Heart picture 21 Lead select symbol 22 Scale bar 23 One or two lines of dashes for waveforms depends upon settings 24 Three dashes for MAP or blank depends upon settings 25 Error message s at bottom of screen 26 If 622 or 623 pull AC cable Should be no change except AC unlit 26 1 If errors of low very low or depleted battery or if system dies plug back in and repeat test in 2 hours SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 1 Section 3 roubleshooting 3 1_ Functional Test and Initial Diagnostic MENU TESTS 2 WELCHALLYNATLAS MONITOR Plug AC back in 27 Press lt DATE TIME gt lt TREND gt 28 Get Advanced Configuration menu 29 Write down all settings for resetting to customer prefer ence later 30 Set language to your native tongue if necessary to allow you to write down the other settings The top item is always the language press either lt SE T gt button to st
53. the main CPU and transmitted to U3 on signal line U3 clk U2 pin2 Appendix A 10 14 99 24V 24V TP26 R33 D6 5V C18 Q 1 47K 27V E 047uF U3 10 C19 C20 be TPA 047uF 47uF d6 c Q u A A U6 ULN2065 U ch gt CikIn Osc1 RB5 Clkout Osc2 RB4 TP67 O Vpp MCLR RB3 fe RC5 TOCK1 6 4 Temperature Amplifier The printer will print darker as temperature is increased Print darkness can adjusted by controlling the time a dot is turned on A thermistor is included on the printhead This thermistor 1s nominally 30K and decreases as temperature increases The output of the temperature amplifier is a function of the thermistor voltage Temp 755 1 R8 Rtherm This voltage is digitized on the main board and the CPU can compensate dot width in order to maintain consistent printing over temperature Printhead Temperature 5V Amplifier 5V R1 51 1K TP3 gt gt Temp C2 R4 ATuF 9 09K R5 1K H8 23 7K C5 OluF Thermistor2 gt D3 Thermistor 3 BAV99L Input Thermistor1 gt Part Number 6200 43E 620001 501 620004 501 620007 501 620013 501 620016 501 620032 620034 620035 620038 620105 1 620117 620119 620125 501 620126 6 620127 620131 1 620132 2 620133 620134 501 620138 501 620139 501 620140 501 620141 6201 42 1 620143 620144 620148 620149 620150 1 620159 620165 620167 620168 1 620169 2 620170 620171 6201 72 2 620173 620175 620176 620177 620178 620182
54. 0 6 q13lHs 130 30H VI H TE annoys z asts ot O 3N 8 8 OIN U HOLIMS dVHLHILVM I mal aat L L yqg L ous JI aNnouo E Xpzodss 8 EEN n m nyo 9 NUNL3Y 1VI8 GNNOHD resi M wma 1498 INNOYD s Nu5 xvoo E 40133130 3qONV 9 aos 5 913IHS 130 300HIVI v L Nuo v lw x I anos G O 3 N E 18 q31 9 z CD O 13534z04S v LL DIN c agy qat x 4 I a D anos el Z 40193130 aqONV I xvoo 1HM K EN T Ha lt N lt O aN5S z O N i 344 TEE o anos I E O d Nyo aNnou5 a t AN N vi lt O qu Z I p O1 XY 20913 O O O at 1 St v O1XL 70213 O T al 2 a z a LLI 9 LLI Y m LL O E x 5 gt a O LU v z O A z a Ze gt m m u lt S x 0 a D n a Se S d J a m d V lt Li O 2 lt H x DI N m n w O m punog NYO O D a q o 2 8 3 EI E oo OO z z z 6 533 x x vasvHd 9 e 25588 L O E 5000 gt o Ne 2 E O a CN LLI O 3svHd in o U gt z 3SvHd c O u Az LU a Tasvkdj l l T tal X Sg amp E z m x lt m gt e O uU EFE HA ARES dE 8 tal ka x ka E N m o u Lu Lu Lu Lu gt D O m u um U u a qq D o d a aar e GN9 39wW vz lt LU gt Z E a Z U m o N m am GN9 29u EZ LLI fe lt O a J QND994 zz m E IW a O 3 aND994 12 lt 2 UI nn O a 9 I GN9994 oz gt E QN9994 6 a us due lau lt gt QO j u lt ao A90 39 Y L SJ 2 N anmenn lt Aoqe9w g x Uu O a N a A90 9Y g O e a ATHY y
55. 07 E R628 A U604C TP609 74HCT04 VEI U604 6 Gc f 1 24V ida RA A LA LL V E An ECG iso 5Vdig TP614 R601 O fVcc f 5V 10K R608 U601 3 C603 1K 4 f 5V 680pF gt 00 lt F TP616 2 R602 Y 98 2 73 2K U601 1 U602 3 R606 U604D f 5V U601A 3 48K 74HCT04 TP617 MC34072 E TP630 q O C601 fVee PWM fVee Q U604 10 fVcc T 1000pF A D Converter U604E 74HCT04 620 N D601 MMBD1503A MC34072 Integorator PANEON f 5V Input 781uSec 0604 10 FIV a Comparator Inputs Analog In U604F i 74HCTO4 ey E E PWM Out U604 8 PWM timer TP627 604 1 DWE TP615 d R625 10K C634 220pF R626 10K C635 220pF R627 5 11K C636 100pF TP618 Y Isolation Barrier iso 5Vdig U613 R613 HCNW4503 6 19K IX DWE iso 5Vdig U612 R615 HCNW4503 6 19K LS DWE iso 5Vdig U611 R617 HCNW4503 2 15K IX DWE iso 5Vdig C632 047uF Q601 E MMBT3904L F R610 U610 2 511 HCNWA503 G iso601 a gt gt DWE Initial Date eS Checked 3 16 99 Approved iso602 a DECO EEE and Fast Transients DESEE 5V VY 5V VY R620 619 iso603 a lt FE Data Clock 5V R621 215 FE ADC Clock 5V Welch Allyn Inc Schematic 620002 dsn Title ECG A D and Interface Size Document Number Rev C 620002 D Friday July 09 1999 Date Sheet 6 of 6 Co N HRESET_n gt D 0 31 gt A 6 31 gt CS n 0 7 gt GPL 0 7
56. 0C 20 7K 25C 6 85V 40C 5 17K SOC 6 65V 3 45K For optimum battery life the float voltage 25C full charge should be set to 6 85V 50mV 6 85V 0 7 To accomplish this tight tolerance charge voltage at room temperature will be adjusted with potentiometer R328 Nominal charge voltage at room temperature 1s Vcharge 5V 1 RA RB where SV is the reference in U303 RA is the series parallel combination of R335 R336 and RT301 nominal 3 465K 25C RB is the series combination of R337and R338 nominal 936 Ohms It is necessary to minimize current out of the battery when the unit is off To reduce off current transistor Q309 disconnects the battery from the battery sense resistors when AC in off In addition diode D307 is added to prevent current from flowing from the battery into the battery current sense circuit and to the output of the AC DC converter F301 4Amp Battery X Bat fuse Battery Charger AC 12V fuse AC 12V gt Q30 3 R318 10K U303 fb C315 047uF gt gt ACON gt gt Ref Batcharge 7 MMBT3904L 2 R325 3 1 96K d Batt fb Appendix A 10 14 99 gt gt To Linear Regulators D307 Input to 5V and MBRS340T3 3 3V linear regulators MTP23P06V R327 0 1 319 1 D307 A 2 Q308 d C338 047uF C319 D306 1000uF MBRS340T3 ii 2308 g R326 10 Q307 e D305 BAV99L Q306 c Q306 MC34072 2MMBT3904L co C320
57. 0IN Nelec etra Systems Welch Allyn Weich Allyn ATyn 4 0 OD U p U Ki lt d L E 2 D O A Pneumatic Tubing I F Pneumatic Tubing collec ES 2 D O l e O O O al W O 3 D D e A A e d DO E a E dob D Nonin Patient Simulator Nonin Finger Phantom Calibration Kit ES 2 D O D yn i C alibrated Ihermometer tor JUr to range AC TE 00 0 yn nservice Training Video Tape English N Welch Allyn Nellcor Nellcor NI N f Nellcor Patient Simulator Nellcor lest Cable imulator e g A OQ CA CO i D O JU a 0 O Patient Cable ead AHA 200 02 Allyn Patient Cable ead domestic 0200 04 Welc Allyn ertified Tank approximately 10 CO2 balance N 02 Water irap package o Allyn E lt D CH OZ Adult Nasal Sample Line 520022 Welch Allyn urface Sensor lemperature 200 315 welc Allyn Windows PC with HyperTerminal serialport software scond cable w connectors RJ 45 to Ru 4 OC Part of Window e 95 amp NT ON AU U U a 00 NQABU E Alyn Printer Paper Case 0200 40 Welch Allyn Digital Multimeter with 10mV accuracy on a 10V scale 10A Range Adjustable DC power supply SA V Battery cable assembly Ka 2 D O Oz C C O 9 9 3 7 Alo Clo a sg oly Clo Z 2 lt ol 9 lO 0 o O A bi 3 WS Ol co Ol o 9 Q ol 2 Ol o ml o x 3 LI ill
58. 2 5V 1 173 8K 4 64K 12 1V The UC3843A requires 8 5V minimum to power on The maximum voltage allowed on the switching transistor Q305 is 15V To meet both these requirements the UC3843A is powered from 12 9V 18V 5 1V zener diode D303 When operating from battery the converter will run at duty cycles over 50 which requires slope compensation for a current mode controller Slope compensation is achieved by summing in part of the oscillator signal pin 4 with the current sense line The PWM controller is current limited on a cycle to cycle basis by monitoring the voltage on the Isense line U302 5 Current limit is activated when the voltage at the sense line reaches IV The nominal DC voltage at Isense is about 0 5V when operating from battery only and 0 7V when operating from AC Then current limit is set to SAmps when Atlas in operating on battery and 3Amps when operating on AC WI Q303 s Aw L303 C335 Bead 12V Boost war d 12 1V nominal 9 18V gt C310 L302 1000uF 22uH R310 4 64K 10K MBRS340T3 L305 Bead D304 C Wi 2V 305 1 C305 5600pF C818 C811 C312 1000uF 1000uF C336 330uF Q305 047uF MTP30N06VL U302 comp 1 5VRef lt lt ja 047uF R311 U302 ct__7 K RT CT O ISENSE 6 kal ali R312 C308 3 83K 2200pF 2 Q304e 3 Q304 R313 C309 MMBT3904L 1 96K 5600pF R316 0 1 PWR GND D312 BAV99L R317 7 AC 12V fuse gt gt 1 2 gp312 lt c Appendix
59. 3 9 Replace the watertrap in the watertrap socket 2 3 3 10 Press Trend to return to the waveform screen message indicating a 5 minute Warming Up period SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 9 Section 2 Service 2 3 4 PRINTER CALIBRATION Note Two lines are displayed Waveform 128 Text 70 These two numbers are factory defaults and a good starting point if the system is printing very poorly or not at all The LEFT lt SET gt button controls the Waveform setting up and down The RIGHT lt SET gt but ton controls the Text setting up and down Make changes tothe settings as needed where a larger number darker printing and a smaller number lighter printing Make initial changes of about 10 points each time After making an adjustment press lt TREND gt to exit the Service Mode 2 3 5 BATTERY VOLTAGE CALIBRATION 10 WELCH ALLYN ATLAS MONITOR 2 3 4 PRINTER CALIBRATION Need PC with HyperTerminal Serial cable Connector 2 3 4 1 Use HyperTerminal to get strobe width settings for printer normal for waveforms text for trend Advanced configuration printing Pangea gt nvram get printer_strobe_width_normal lt ENT gt normal value 130 Pangea nvram get printer strobe width text ENT normal value 70 2 3 4 2 Change values larger number for darker printing Change with Pangea gt nvram set printer strobe width normal XXX Pangea gt nvram set printer strobe width text YYY 2 3 4 3 lest
60. 34 10 Battery Voltage Calibration Models 622xx and 623xx only Section 2 3 5 10 amp 11 Temperature Measurement Subsystem Calibration Section 2 3 6 12 Set Battery Charge Voltage Section 2 3 7 13 2 4 Software SONWALE CRNIH 2 e X 14 Downloading Operating System 2 A 15 2 5 Downloading NVRAM Text files 15 amp 16 2 6 Downloading Software and NVRAM Text files 16 27 Product N mberihg Erd iert 17 Section 3 Troubleshooting Also see Atlas Operator s manual Appendix E 3 1 Functional Tests Initial Diagnostic Steps 1 3 2 Technical Troubleshooting Tables Complaint Cause Corrective Action 12 3 3 Top Level Troubleshooting Index 15 3 4 Diagnostic Tests and Test Setups a 17 Section 4 Disassembly and Repair PRD OU eren iii 1 4 1 Model 200 DISSASSEMDIY 5 la e te a te ed E Itti etudes on a Sau 2 4 2 Model 200 Re assemlbly EE 13 4 3 Other Models 0 Saca aiii 15 ii WELCH ALLYN ATLAS PATIENT MONITOR SERVICE MANUAL 6200 43E REV A A
61. 4 99 REL TO PROD DATE FINISH Ju BELEEO 20130 59 CAD SOFTWARE PROF ASSEMBL Y TRANSLATED FROM MEJO UNLESS OTHERWISE SPECIFIED TOLERANCES DIMENSIONS XX E O ARE IN XXX 22 005 INCHES ANGLES 2 o DRAWING NO REV B EE A SCALE NONE SEE KR set REV DESCRIPTION ECN ECO INIT DATE GED B REV A REL AS EXT ITM wen 5739954 ASK ir PERE ORMAN E EE ME MES R de S EU JI AC INPUT INPUT VOLTAGE Poe OWPPLUE dod Je tee INPUT FREQUENCY 2 OUTPUT 2 INPUT CURRENT FULL LOA 3 OUTPUT 3 NEUTRAL OVERVOLTAGE PROTECTION SEH NNN 4 RETURN OUTPUT VOLTAGE 2 DE qQUE 1 uA 2 RETURN OUTPUT POWER CONTINUOUS 6 RETURN OUTPUT POWER PEAK OPERATING TEMPERATURE EMI COMPLIANCE OUTPUT NOISE P P E 620150 REV B OR HIGHER NOE s PART NO DESCRIPTION THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC d U E L R CON DOR POWE R D U P E ES NC AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE 31 STATHAM PKWY OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION OXNARD Ca 990 92 DRAWN DATE Port IN La MOS a IO ASH 12 Jul 99 APPROVED DATE MATERIAL a SUP wy Aum BE Ge ee 0 A
62. 40 Y R615 6 19K EN R629 O 10K cO IX C644 220pF DWE DWE iso 5Vdig TP641 Y SC R631 5 11K IS C645 100pF DWE DWE iso 5Vdig C632 047uF TP628 Q Q601 MMBT3904L R610 O 511 iso601 a Q TP632 DVE E 99 O E prar s 1999 rue Checked L Phillips 3 16 99 Approved Release For Production J Bello 3 16 99 Release to Production 5 39121 JAC 3 15 99 LPP Isola Barri yy Date See ECN worksheet Improvements for ESD RFI and Fast Transients Correct Respiration Diff Amp Topology Mods to U2 clock line Resp gain amp ECG supply and NVRAM pullup tion er U613 5V N HCNW4503 U612 5V HCNW4503 Y 5V VY U611 HCNW4503 U610 HCNW4503 Welch Schematic iso604 a iso603 a iso602 a 5 39455 LPP 4 27 99 LPP 5 39821 LPP 6 24 99 LPP 5 39936 LPP 7 9 99 R619 619 lt FE Data In R620 619 lt FE Data Clock R621 215 lt FE ADC Clock 5V C621 0 1uF Allyn Inc 620017 dsn ECG A D and Interface Document Number 620017 Wednesday Jul Rev E of 8 14 1999 Sheet 6 O j C NEE Release to Production 5 39121 JAC 3 15 99 LPP m See ECN worksheet 5 39455 LPP 4 27 99 LPP Improvements for ESD RFI and Fast Transients Correct 5 39821 LPP 6 24 99 LPP Respiration Diff Amp Topology Mods to U2 clock line Resp E gain amp ECG supply and 5 39936 LPP 7 9 99 NVRAM pullup
63. 5 11K SWD el PZ l U205 3 C230 1 96K 047uF P 5V gt R237 TP228 U206A R223 C214 C217 C210 R229 464K U205A MC34072 21 5K 047uF 047uF 1 96K MC34072 04 U P202 FPNS 07PGR 4 C212 680pF P 5V N R224 1K P 5V TP232 Q 9 P202 Out T X NIBP PWM ADC MAX941 U206B R225 R220 MC34072 1K U207B 806 C218 74HCT00 TP233 4 7uF U208A 4 MC34072 5VRef U207A Y Z a 74HCTOO C220 P 12V Zero R221 R226 C215 ba 7 NIBP ADC Clock gt Ge 3 16K 12297 21 5K 047uF ki TP238 j lt p ia ui deleng U205 7 MMBD1503A Drawn f e Schematic 620002 dsn C213 R222 U205B Designed 5 1999 01uF 1K MC34072 Rick Myers Mar 9 1 Title Checked L Phillips 3 16 99 NIBP Electronics Approved 3 16 99 De Document Number Rev C 620002 D Release For Production iso 5Vdig C406 100uF C415 tuF C403 047uF U401B C416 MC34072 047uF SpO2 ESD Ground J403 J401 1 fVcc 2 O 3 A C419 4 10uF CON4 VIN FS FDBK 7 U403 7 SHTDN nm ae zo 047uF d Isolation q S Barrier NS Isolated SpO2 Tea Ps D401 R T401 1 MBRS130T3 lt iso 5Vdig 4 7uF Vee lt lt S C407 MBRS130T3 IsoXfmr C404 100uF 047uF S S DYE VE Ww S fVcc R417 Y 10K TP419 Y ta TP420 U410 Q R403 4N25 U401 3 1K U401 1 iso401 a U401 2 R418 5 11K U401A M d MC34072 d S d S d S TP421 TP422 R401 Q C408 lt lt R402 10K 01uf 10K iso 5Vdig gt C408 2 R420 iso 5Vdig 9 09K C413 047uF d S DWE Q403 sSpO2t
64. 5 2 3 3V Regulator 2 Patient Isolated Circuits 2 1 Isolated Power 2 2 A D Circuits 2 2 1 PWM A D 2 2 2 A D Multiplexer 2 3 Serial Communication 2 4 Signal Isolation 2 5 ECG Circuits 2 5 1 Overview 2 5 2 Defib Protect RFI Filtering 2 5 3 Front End Buffer Ist Gain Stage 2 5 4 Wilson Network Lead Select Mux 2 5 5 Differential Amplifier and Slew rate limit 2 5 6 Right Leg Drive Amplifier 2 5 7 High Pass and Gain Stage 2 6 Temperature Amplifier 2 7 Impedance Respiration 2 7 1 Overview 2 7 2 Signal Source Current Drive 2 7 3 Differential Amplifier and Peak Detector 2 7 4 Gain and Filtering 2 8 SpO2 Circuits 3 Non Isolated circuits A D and Mux 3 1 A D grounded circuits 3 2 A D Mux grounded circuits 4 NIBP Circuits 4 1 Overview Safety 4 2 Primary Transducer Amplifier 4 3 Safety Transducer Amplifier 4 3 1 Current Source 4 3 2 Differential Amplifier and Offset Centering 4 4 Hardware Overpressure 4 5 Pump and Relay Drive 5 CRT Deflection Board 5 1 Overview 5 2 Vertical Amplifier 5 2 1 Ramp Generator 5 2 2 Vertical Amplifier 5 2 3 Zero Adjust 5 3 Horizontal Amplifier 5 3 1 Horizontal Gain 5 3 2 Grid Voltages 5 4 Video Amplifier Appendix A 10 14 99 6 Recorder Electronics 6 1 Overview 6 2 Power Supply 24 Switcher 6 3 Motor Driver 6 4 Temperature Amplifier Appendix A 10 14 99 1 DC DC Power Supply 1 1 Overview Atlas Model 622 and 623 can be powered either from AC or battery A 50W
65. 501 MMBD1503A D501 3 D502 MMBD1503A D503 MMBD1503A D504 MMBD1503A D505 BAV99L R516 10K lt clamp lt clamp D506 5 1V Input Buffers x Gain 9 26 D507 5 1V fVcc TP503 TP504 Y R508 Y TP505 10K Q U501 3 R509 C506 TP5OK 22Meg U501A R517 220pF Y MC34002 10K P 0 196 R509 1 E R557 22Meg R518 V fVcc 1 21K VLdsOft 0 1 TP511 TP512 R510 d co oe 10K Q R511 C507 22Meg U501B R519 220pF TP519 MC34002 10K P 0 1 R511 1 E R558 22Meg R520 WN fVcc 1 21K VLdsOft 0 1 TP523 TP524 Y R512 Y mi TP525 10K E U502 3 R513 C508 22Meg U502A R521 220pF TP53 MC3400 10K 0 1 R513 1 E R559 22Meg R522 N fVcc 1 21K TP538 VLdsOft 0 196 TP539 R514 Y is TP540 10K U502 5 R515 C509 22Meg U502B R523 220pF TP542 MC34002 10K O 0 1 R515 1 E R560 22Meg R524 IN 1 21K VLdsOff TP561 0 196 Q501 Q502 2N7002 2N7002 NE Sw RLD RA gt fee fVee i cl P550 HI mus WE DG202CSE O TP559 U501 E E E E E E E X RA LA A D Inputs P5 Leads Off Sa SEM lt LL lt V TP506 Wilson W e 9 Network RA C510 220pF R529 C511 220pF SZ fVee C512 220pF TP535 TP536 TP537 Q C513 220pF fVcc 547 TP548 U503B R555 Q MC34002 VLdsOff lt lt f 1 24V lt lt R556 10K E VE TP549 fVcc Q U503A R525 VAL lt Mca400 10K VE U503 2 RLD Amp fVee C514 0 1uF C514 2 TP552 Q U502 U503 U504 U505 U506
66. 5mmHg NIBP 15mmHg x NIBP Overpressure NIBP Overpressure x NIBP PWM ADC TIN2 C74 C75 C76 C77 19 330pF PWM Input Timer Signals dcn nuuc BUE ZEE Drawn Schematic Designed I O Filters Document Number 620005 Welch Allyn Inc 620005 dsn Thursday June 24 1999 Sheet 3 of 6 Release to Production 5 39173 3 18 99 m Component change for 5 39353 zm rss frequency modulation C Change Reset IC U3 LPP No Load C40 5 39830 6 24 99 BS AB 0 3 Burst n BS AB 0 3 RD WR n SE y lt GPL 0 7 TSIZ 0 1 I D 0 31 l CS n 0 7 CCS n 0 7 A 6 31 gt S E c T o TS n x x TA n 99 TEA n BI n O BR_n Z Zl O A lt en lt ea o BG n OO 00000 0000000 m lt lt CN C SO SSS BE OI Cee O5 Q ec QN C SF LO OK ODO CN C N O O S IS ST o NE uw e Kei e Ru he a Ber De ep EE ere m BB n e LE EE lt lt lt lt lt lt lt lt lt QQOQODQQQQOQL OQaoaaoaoaaoaaaaaoaaaaaaaoaaagGaxaun OnEOMRDMITMEOQOGCLULI mudo md 35580 6 do 8 6 O 0 Kei SPKROUT A16 ul 5 m U mmmmezzoz O lt tc CN VDDH NC1 T m E 09020 El c c m m s 00000050 FRZ A A A lt gt n a fL OO 172 c ei c8 0 e gt gt SCH Bn a 2003 ola i la E r E DU VDDH1 lt lt lt a unox T OO Ll EG a EL O Lu AA n P 882 mo Izk x Q mE UE eae gt pss D16 ES VDDH4 S 552 A si PA15 USBRXD H lt PA15 VDDH5 BTN 442 PA14 USBOE n F2 lt PA14 YEN TEE paS D PA13 RXD2 c L E15 VD
67. 6 1000pF High Pass 0 05Hz or 0 5Hz Gain Stage Low Pass 150Hz Mee Gain 74 NL SE IL 4 TP517 TP528 TP529 C515 R550 Q M TP518 Q Q 3 3uF 19 6K O ecg hp 508 5 X An ECG C516 R548 R549 047uF TP535 TP536 TP537 1Meg 110K R551 C517 Q d Q 73 2K 01uF Q504 d E lt Mux LdS A i E KMux LdS B Tp526 Tp527 lt Mux LdS C Y Y dE 2 fVcc U503B R555 MC34002 R556 10K E y E fVcc U503A e R525 MC34002 10K v E U503 2 Designed R528 TP552 Checked TP551 51 1K gt LEE Release For Production TP532 Q504 2N7002 Q506 2N7002 Welch Allyn Inc Erano arose P J Bello 3 17 99 bars Schematic 620002 dsn ECG Amp Document Number 620002 Friday July 09 1999 Rev D f 6 Sheet 5 O U601 U602 U603 fVcc fVcc U601 U602 U603 Wee lt lt R623 46 4K al TP625 C625 C614 C626 C627 O 047uF 4 7uF 047uF 047uF SW RL V Sw RLD V lt lt E E E E U607B SM iso 5Vdig LM393 U604 iso 5Vdig gt C629 047uF f 5V K Serial Parallel fVee L C631 Control Data NZ LEM 4 7uF fVcc TP602 U604A U605 O Q 74HCT04 fVcc 74HCT595 lt U604 2 2 Se A 46 4K e d SEI Sw DiagBw NE EM MONDARG Sw RLD RL 2277 So SEN toi 24N Sw RLD LL QS LM393 TP604 d TP621 TP622 fVee TP623 TP624 3 Q U606 O f 5V 74HCT595 U604B A E Pattee A a i U604 4 4 ie e A ee ET 3 Mux LdS B SRCLR D Mux LdS A e S WA 605 1 T P606 C637 1000pF TP6
68. 6200 43E REV A WELCH ALLYN ATLAS MONITOR 17 Section 3 Troubleshooting X liton AUTO 3 4 Diagnostic Tests If not lit or a number lit goto Bad Boot 1 AG lit If not lit goto LED 1 CRT display comes on slowly if cold quickly if still warm from last use May see version string in center if comes on quickly not a problem if not seen because it comes on slowly CRT three dashes for Heart Rate Heart picture Lead select symbol Scale bar One or two lines of dashes for waveforms depends upon settings Three dashes for MAP or blank depends upon settings If not seen goto CRT 2 Error message s at bottom of screen If message review cause in User Guide If 622xx or 623xx pull AC cable Should be no change except AC unlit If system dies immediately check fuse on battery cable If fuse is OK either charge battery for 2 hours or goto Battery 1 If errors of low very low or depleted battery plug back in and repeat test in 2 hours Test Setup 1 Press lt DATE TIME gt lt TREND gt Get Advanced Configuration menu Set language to your native tongue if necessary to allow you to write down the other settings The top item is always the language press either SET button to step through list Write down all settings for resetting to customer preference later Press lt PRINT gt if printer fitted If printer problems goto Printer 1 Press lt I REND gt to return to idle screen 18 WELCH ALLYN ATLAS MONITOR S
69. 620187 501 620189 620192 620193 620194 620197 620198 620200 501 Appendix B Atlas Repair Parts SERVICE MANUAL MAIN PCB ASSY LOW END ATLAS CPU PCB ASSY FRONT PANEL DISPLAY PCB ASSY PRINTER PCB MAIN PCB ASSY MID HIGH END ETCO2 PCB ASSY ETCO2 CONNECTOR amp CABLE NELLCOR SPO2 BD NELLCOR LABEL CARTON BATTERY DOOR PRINTER DOOR BUTTON LATCH SPO2 MAIN CASE HANDLE SET BEZEL SET HIGH HEAT TRANSFER METAL BRACKET FOR PRINT MAIN FOAM TOP FOAM BP FOAM GEAR ASSY PRINTER DOOR ASSY PRINTER FRAME ASSE MAIN PRINTER ASSY METAL HOUSING TOP METAL HOUSING BOTTOM LG NUT TEMPERATURE BRACKET SPO2 GASKET CO2 EXHAUST FITTING 1 16 X 1 8 27 NPT AC DC POWER SUPPLY PRINT HEAD CABLE CONN TO MAIN BD ECG CABLE MAIN BD TO DISPLAY BD CABLE ASSY POWER SUPPLY CABLE ASSY NELLCOR SENSOR CABLE ASSY NELLCOR CABLE ASSY SPEAKER CABLE ASSY AC CABLE TEMP SENSOR TO MAIN CABLE ASSY FAN CABLE ASSY PRINTER CABLE ASSY PRINT HEAD CABLE ASSY SP02 LABEL RS232 PNEUMATIC SUB ASSY 4 20 X 5 16 SLT TORX PN PL ZIN PNEUMATIC CONNECTOR MACH NUT HEX 5 16 32 X 095 PNEUM WASHER FLT 33 X 62 X 049 BUSHING SPLIT NYLON FOOT CRT SUB ASY Page 1 Part Number Description 620201 501 POWER SUPPLY ASSY LOW END 620201 502 POWER SUPPLY ASSY W FAN 620202 504 MAIN HSG ASSY W BATT amp PRNTR 620205 4 40 X 31 TX PN MC ST ZN 620207 NUT M3 5 HEX KEPS ST ZN 620373 501 NONIN SUB ASSEMBLY 620377 1 NELLCOR WORKS HERE
70. 8 C19 C20 C21 C22 C23 C24 C25 C26 pus doe Tee eer oweTeswJasreT E s lid tea Dera aes si Ite Front Panel Displav Board Checked L Phillips 3 24 99 ront Fanel Dispiay Boar ETCO2 Alarm On Off HR Alarm On Off LH Select LH Adjust LH Adjust TrendL gt Lead Select gt Print gt NIBP Alarm On Off SpO2 Alarm On Off RH Select RH Adjust RH Adjust BP Auto BP Start Stop SW23 Trend Lead Select Print SW25 SW26 SW15 SW16 SW17 SW18 SW19 SW20 SW21 VCC TP66 d im Pd M TP69 TP70 TP71 gt gt gt u2 10 Q etco2 sw U2 SER HRalarm sw 92 x EAselectsw_ TT TT T T o o ua LHAdjust sw SS USD LHAdjust sw j T C MEN s Ep Ale RENE Jj e F 2 H VCC foie IN We TP81 TP82 gt Q NIBPalarm sw SpO2alarm sw_ 4 1 j 122 RHselect sw RHadijust sw RHadjust sw BPauto sw BPstart stop sw Q Q 9 TP84 TP85 TP86 74HC165 10 1 2 B 4 Pull up Resistor Network TP77 Detail SWA QRS Volume QRSvol sw QRSvol sw Alarmvol sw Alarmvol sw ORS Volume Time sw Alarm Volume Alarm Volume On Standby SW14 ju M U U UOUOU OU D Release to Production 5 39251 JAC 3 23 99 LPP EM No Load D16 5 39485 LPP 4 28 99 LPP D13 to Low Profile R51 to 316 5 39994 LPP 7 23 99 VCC fae e p TP74 TP75 TP76 o
71. A 10 14 99 1 4 Battery Charger The battery charger is a PWM buck converter The input to the battery charger is 12VDC from the offline switcher The UC3843A normally a current mode controller is configured for voltage feedback mode The UC3843A has an under voltage lockout for Vcc lt 8 5V The controller operates such that with Vcc less than 8 5V the reference out is OV and will be at 5V with Vcc gt 8 5V Then the reference out pin 14 can be used as an AC ON detect signal The switching transistor for the buck converter is a P Channel MOSFET Q308 The output drive of the controller is the wrong polarity for driving a P Channel MOSFET in a step down mode Therefor transistor Q306 is added to invert the PWM out signal Fast turn on of Q308 1s provided when Q306 is low fast turn off is though Q307 configured as an emitter follower The battery charger is a current limited temperature compensated charger Current limit is set to 1 5Amps Current through the 0 1 Ohm sense resistor R327 is measured with Diff Amp U305B When the charger current is at 1 5Amps feedback is controlled by Op Amp U304A When the current drops below 1 5Amps the output of U304A goes low reverse biasing Diode D308 and feedback will be controlled by Op amp U304B Battery charge voltage is temperature compensated using Thermistor RT301 a 10K negative temperature coefficient resistor Voltage over temperature follows the following charge profile 7 05V 26 9K 1
72. ALLYN SPECIFICATION P N 2 BOARD TO MEET Se 1690s 3 PACKAGE INDIVIDUALLY WITH ESD PROTECTION 4 MARK ASSEMBLY SERIAL NUMBER AND WELCH ALLYN P N 125S210 IN ANY FREE AREA LABEL PERMITTED SHEL PEF 5 WELCH ALLYN MUST BE NOTIFIED PRIOR TO ANY WELCH ALLYN HARDWARE OR SOFTWARE CHANGE P N 113P47 corte 1 000 AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION DRAWN DATE 7 APPROVED DATE MATERIAL REL TO PROD DATE FINISH TITLE EDMONDSON 4 15 99 NONIN SPO ASSY BOARD WITH SHIELD TRANSLATED FROM e UNLESS OTHERWISE SPECIFIED REV 1258210 620154 D TOLERANCES DIMENSIONS ER 0 SCALE 000 SmEEL d O4 d ARE IN 005 INCHES XXX ANGLES 2 1689104 620196 TERMINALS 2 086 WIDE WITH HOLE FOR WI NOTES PURCHASE FROM OKEN SEIKO CO LID INAGI TOKYO JAPAN PARI NUMBER PODCOO 2 DC MOTOR POWER REQUIREMENTS RATED VO CURRENT 500 mA MAX DURING PRESSURI STANDARD VOLUME OF 500 cc L TAGE 6 VDC ZATION FROM 0 300 mmHg 3 REFERENCE LEAK RATE THE PUMP LEAK RATE WILL BE LESS THAN I gt mmHg IN I5 SECONDS WITH A I00 l0 cc VOLUME PRESSURIZED TO 50 43 mmHg ATTACHED THE PRESSURE IN THE VOLUME MUST BE STABILIZED FOR A MINIMUM OF 20 SECONDS BEFORE BEING ATTACHED TO THE PUMP THE PUMP MUST BE RUN FOR A MINIMUM OF f5 SECONDS BEFORE BEING ATTACHED TO THE PRESSURIZED VOLUME 4 PU
73. Atlas Operator s Manual Appendix C WELCH ALLYN ATLAS MONITOR 1 Section 2 Service 2 2 Repair Tests 2 2 1 Blood Pressure System Leakage Test Unit must not leak more than 5 mmHg in a 15 BESSE second interval while attached to a 100 cc volume at test pressures of 50mmHg and 250mmHg Need 100cc 10 0cc test cavity stopwatch squeeze bulb 2 2 1 1 Connect Atlas to test 100cc volume and Setra Gage as shown in Figure 2 3 1 1 2 2 1 2 Turn Atlas ON 2 2 1 3 Press Time and Date button to access Options Menu 2 2 1 4 Press Lead Select button to select Service Mode Select Verify Manometer 2 2 1 5 Pressurize the Atlas with squeeze bulb to 50mmHg NOTE Allow reading to stabilize for 15 seconds 2 2 1 6 Observe pressure for 15 additional seconds Unit should not leak more than 5mmHg during this time 2 2 1 7Perform this process at 250mmHg BP Dump Test 2 2 2 Dump Test Unit must be able to deflate a 500 cc volume from greater than 260 0 mmHg to less than 15 0 mmHg in 10 seconds or less Manometer Accuracy Test 2 2 3 Manometer Accuracy Test Internal temperature of the unit must be less than 32 0 degrees Celsius before performing test 2 2 3 1 The primary transducer must be within 0 75 mmHg at 0 0 3 mmHg The safety transducer must be within 1 mmHg at 0 0 3 mmHg 2 2 3 2 The primary transducer must be within 1 5 mmHg at 50 5 0 mmHg The safety transducer must be within 1 5 mmHg at 50 5 0 mmHg 2 2 3 3 The
74. BF4393L O C714 U702 7_AJTP722 047uF a fVcc VE U N e q R713 O 1K D706 R710 MMBD1503A 464K fVee U702 6 S TP 5 lt Resp Reset VE R714 R723 15 8K 1Meg VE VE Welch Allyn Inc Schematic 620017 dsn AA Se ME EN Checked L Phillips 3 16 99 zer anos Respiration Approved Document Number 620017 Rev E of 8 Wednesday July 14 1999 Sheet 7 Q303 gt gt Rec DCV MTP30N06VL al Wd UM gt gt VBackup C331 C332 4 7uF 6 d 4 7uF 24 4 d LP2951CD 3 3 A Y D Ond oTt E e Re gt Viuse 18V Boost Mosfet Gate Voltage U301 7 HS301 Heatsink e ror F303 m BRE D R305 U301 mp 1 MC34063AD TP307 6078 Q Q AC 12V gt ett IDC 5VRef lt lt MPSW51A ae R301 Prope o 10K C302 301 ct Z MBR2535CTL Q301 b 1uF Q TCAP COMP d C304 C303 USA R307 100uF R302 470pf 4 64K 1 96K Q302 c i Q302 On Off 2 MMBT3904L Q yi T9 D313 NO LOAD F301 4Amp Bat fuse Battery Charger TP349 Q308 Q L304 D307 F302 eee awe 47uH MBRS340T3 4Amp gt F302 2 AC 12V fuse A308 d L306 C340 Bead C318 047uF 330uF Q308 g D306 MBRS340T3 B l R326 Q307 10 MMBT3904L Q307 e TP320 R318 TP324 D305 10K 9 BAV99L U303 fb TP326 TP351 Q Q306 c R323 1 96K U305B Q306 MC34072 MMBT3904L o Q TP328 C315 R320 5 Q Q TP330 C320 R332 047uF 7 5K ISENSE U303 5 TP329 Q 01uF da 19 6K I Ref Batcharge Ge DAR Current Li
75. BP Temp Respiration Battery RS232 Printer Nurse Call 623SP ECG Nonin SpO NIBP ETCO Temp Respiration Battery RS232 Printer Nurse Call 623NP ECG Nellcor SpO NIBP ETCO Temp Respiration Battery RS232 Printer Nurse Call SUFFIX Use letter designation for language localization as follows E English F French G German I Italian S Spanish P Portuguese C Chinese J Japanese Use number designation for line cord localization as follows 1 US Canada Japan Version 2 European Version 4 United Kingdom Version 6 Australian Version Specifications See Operator Manual Specifications for all of the above listed models of Atlas including performance accuracy range size weight power environmental are documented in an appendix to the User Manual Model 200 Main Board and Schematic 200 Model 220 Main Board and Schematic 220 SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 17 Section 3 Troubleshooting 3 1 Functional Test and Initial Diaqnostic 1 Review customer complaint and determine if it is safe to plug in and turn on Atlas 2 Plugin Atlas no sensors attached 3 Check for AC LED lit Note Idle screen is normal 4 Install paper in printer if fitted waveform display 5 Turn on power 6 Green light in power button 7 Loud beep when button pressed 8 Three dashes in SYSTOLIC 9 Three dashes in DIASTOLIC 10 Two dashes in SpO takes several
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77. C324 R347 IN OUT gt gt 3 3V 1000pF 10K A TP317 A C324 2 C328 z C329 C330 TP318 047uF O 100uF 047uF Q TP319 5V Linear i ie D D D 8 8 HOW xi O TP323 Dropout ea U305 3 AREA lt 5VRef MC34072 00 C326 R350 5 01uF 10K D311 BAV7OL C327 12V T 047uF AC 12V fuse gt U305 pwr OTP331 Q313 R351 TP334 5 11K Z ns Y poloa gt gt BattVoltage O R352 C333 TP338 5 11K 047uF 12V R353 TP340 E 5 11K O poian gt gt BattCurrent Q 1945 Q314 R354 R355 5 11K 14 7K C334 ee BattCcuerr D0w FAV 2N7002 047uF Ibatt 11 59 Babtollrt 2490 WV l 5V l TP350 Y Q310 MMBT3904L o co G R345 10K PA ect 3 16 99 2 Psenten aen P ee For Production J Bello Bello EN Date Checked L Phillips Approved Welch Allyn Inc Schematic 620017 dsn 1999 Title DC DC Power Supplies Document Number 620017 Rev E of 8 Tuesday July 13 1999 Sheet 3 J501 CON6 OO O S NE Shield R506 10K fVcc R507 10K fVee lt Right Arm lt Left Arm R501 51 1K Right Arm N501 LAMP NEON N502 LAMP NEON N503 e LAMP NEON S C503 220pF NS E R561 R562 34 8K TP553 TP554 O 538 1 539 1 C538 C539 1000pF 330pF E E R504 51 1K V Lead N504 d LAMP NEON C504 Y 220pF NS E R563 34 8K TP555 TP556 540 1 C540 C541 1000pF 330pF E E R505 51 1K Right Leg N505 LAMP NEON C505 220pF Defib Protect RFI Filtering TP501 Y clamp TP502 Y Clamp D
78. DH7 OO PA12 TXD2 Con lt TXD2 A E S PA9 LITXDA SMRXD2 H lt SMRXD2 Place VSSSYN t F1 VDDH9 v PA8 LTRXDA SMTXD2 X SMTXD2 f id 7 VDDH10 PA7 CLK1 TIN1 LIRCLKA BRGO1 PF PA7 DEE EE I 15 VDDH11 PA6 CLK2 TOUT1 n TIN3 lt PAG plane beneath 1 is 7 VDDH12 PAS CLK3 TIN2 L1TCLKA BRGO2 lt PA5 the MPC823 PLL Cous VDDH13 PA4 CLK4 TOUT2_n TIN4 KN lt PA4 section VDDH14 N14 PB31 SPISEL n LCD A FS KSPISEL n PB30 SPICLK FL SPICLK VDDH17 PB29 SPIMOSI SPIMOSI Attach GND d 12 vsssyn at a KS VDDHIS KEE PB28 SPIMISO JI lt SPIMISO geen 12 VDDH19 PB27 I2CSDA BRGO1 H lt I2CSDA single point L VDDH20 the monster PB26 I2CSCL BRGO2 gt lt 12CSCL NETA VDDH21 PB25 SMTXD1 2 lt SMTXD1 157 VDDH22 PB24 SMRXD1 SMRXD1 e VDDH23 TTE PB23 SMSYN1 n SDACK1 n ke KSDACK1 n 17 VDDH24 PB22 SMSYN2 n SDACK 2 n PS lt SDACK2_n CTO ec U1 PB19 L1ST1 LCD B HE lt PB19 wo VDDH26 PB18 RTS2 n L1ST2 y X PB18 M10 VDDH27 PB17 L1ST3 LCD C FY lt PB17 VDDL TA VDDH28 PB16 L1RQA L1ST4 lt PB16 VDDH29 B M12 VDDH30 PC15 DREQ1_n L1sT5 22 KDREQI n co PC14 DREQ2 n RTS2 n L1ST6 R SDREG2 mu Q PC13 L1ST7 PC13 Gil aac il 1 VDDL2 a e PC12 L1RQA L1ST8 lt PC12 is VDDL3 E O io Q PC11 USBRXP LZ ZC PC11 Ke SEKR a Z e o Dan PC10 TGATE1_n USBRXN LS lt PC10 4 lt LL LEa VA Dor PC9 CTS2 n PES PC9 s 2222052245 A Es PC8 CD2 n TGATE1 n LN lt Pce AI NCA
79. E FOLLOWING TESTS TO BE PERFORMED ON IOO OF THE PARTS AND REL TO PROD DATE FINISH WITTEN CER TINE ICAT LOM TO BE SUPPLIED WIE PACH LOT J BELLO 4 08 99 A PRIMARY INDUCTANCE PIN 5 TO PIN 8 l TRANSFORMER B SECONDARY INDUCTANCE PIN TO PIN 4 7 C TURNS RATKOJ ed 10 598 mo TTE ISOLATION D VOLTAGE BREAKDOWN UNLESS OTHERWISE SPECIFIED DRAWING NO REV TOLERANCES DIMENSIONS U AO A E E m 02 ARE IN 1 PART TO BE A RECOGNIZED COMPONENT UNDER UL2601 OR EN60601 1 CONSTRUCTION DOK 905 INCHES To eu ia aie 3 2 REV DESCRIPTION EGNYECO INIT DATE CKD RELEASE TO PROD ENG Site ew JRS 4 16 99 7 W ADD 620027 3 4 IEC I EM D CHANGE NOTES 3 4 goce BS Rs On Ee A SEES eU m 120 00 3 00 PATIENT END B PATIENT END D RA em V OPRA WHT FE S EIER LL n RL GRN Lal oi SURE d C BRN LA LL RED B E E d kee a QJ LA BLK See RE de WHITE A LW RA WHT 6 SHIELD 3 RED gt WHT RA c oul GRA 2 BLACK 4 C BRN 2 g 3 HAM LLI RED E PATIENT END 5 GRN RL 2 BLK LA d LA BLK SHIELD 6 bo LU 4 BRN C 3 RED LL CONNECTOR END CONNECTOR END PATIENT END VIEW B B CABLE WIRING DIAGRAM VIEW A A CABL
80. E WIRING DIAGRAM 120 00 3 00 120 00 3 00 S dd PATIENT END l ore R RED N BLK F C WHT F GRN O 1 O L YEL y 620021 4 mE R RED E 3 Aw F GREEN ine oe 2 k sms 4 W C WHT E x g JUMPER 3 W F GRN B 4 NA PATIENT END 2 AM E E a D NA 5 SHIELD CONNECTOR END CONNECTOR END PATIENT END VIEW D D CABLE WIRING DIAGRAM VIEW C C CABLE WIRING DIAGRAM CATALOG REF DESCRIPTION P N P N 620021 1 1340PS MW02500 3 LEAD DIN STYLE SAFETY PATIENT CABLE B EE COE IV EIE S ED Il Du DOS de 43991 5 EE E o E ADS DN TE SEM OG Wel AD EC E E Dp D Due ese usd ee Scy BAN SM KEE OSA TES E X AI BERN LADLE EX Ge dee TOOL 5 m N K be CONNECTOR AND TRUNK CABLE SHALL BE 414C GRAY AND HE PATIENT END SHA BE BLACK PACKAGING ig EL A la o ls E SAALE DE ARE EEN SEO AND LITO OE Mies pe m Ss A CABLE NAMEPLATE SHALL CONTAIN
81. ERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting Connect serial cable between Atlas and PC Start HyperTerminal on PC At Pangea gt prompt type Pangea nvram get printer strobe width text ENTER Write down this value If problem is that TEXT printout is too light increase this number lf the TEXT printout is too dark decrease this num ber Range is 0 256 Set new value with Pangea gt nvram set printer strobe width text XXX lt ENTER gt Pangea gt nvram write lt ENTER gt Where XXX is the new value Repeat the test that showed the problem Repeat this test and set process until ideal value is achieved Disconnect serial cable A bad date may indicate a battery problem If date was bad turn off unit pull power cable reconnect power cable turn on unit Check date again If date comes back bad Model 621 xx test replace lithium on board battery Model 622xx 623xx charge test battery If battery OK Charged Replaced repeat Test Setup 2 If still not maintaining date goto NVRAM 2 Failure to correctly reset factory defaults indicates memory problems Changing only the language should not change any of the other factory default settings Reinstall software and repeat test If still failing Replace CPU board Date comes back wrong and battery already tested good Reinstall software and repeat test If still failing Replace CPU board Save Settings does not work Reinstall software and repeat test If still failin
82. ERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting 3 4 Diagnostic Tests Press lt DATE TIME gt Test Setup 2 Get date time menu Verify date time set if necessary If date was significantly wrong goto Date 1 Press TREND to return to idle screen Test Setup 3 Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu Examine version configuration data in lower half of menu and write it all down Press lt SELECT gt to highlight Reset to factory defaults Press BP START CANCEL gt to reset configuration Press lt I REND gt to return to idle screen Press lt DATE TIME gt lt TREND gt Get Advanced Configuration menu Set language to your native tongue if necessary We have just resetto factory defaults Compare settings to factory defaults appropriate for the country in Operator manual if not here too If not matching goto NVRAM 1 Press lt I REND gt to return to idle screen Compare version numbers from Test Setup 3 to table in Test Setup 4 Service Guide Press lt DATE TIME gt lt LEAD SELECT CRT 1 Get Service Mode menu Press lt SELECT gt to highlight CRT Test pattern Note screen alignment If misaligned mechanical adjustment required on disassembled unit Press TREND to return to idle screen If no display at all on CRT CRT 2 Check connections CRIT to Yoke cable CRT to Anode cable CRT to Deflection board Deflection board to Main board cable Replace CRT Replace Deflection board Replace Main boa
83. Fan Replace Main board 34 WELCH ALLYN ATLAS MONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic This section is a guide for disassembly and reassembly About Section A of the Atlas Monitor Always refer to current revision schematics diagrams and final safety test procedures before attempting to service this device you have received Service Training from Welch Allyn or an authorized agent and are equipped with approved processes and test equipment For more information about this call the Welch Allyn Cus tomer Service phone number listed in Section 1 of Do not attempt to service this instrument unless this manual General Abstract of Disassembly The outside housing is removed to provide full access and Reassembly to all internal printed circuit boards and other compo nents Most of these are held in position with the sur rounding E Pac foam E Pac provides shock absorbtion ventillation channels and spaces for the components and boards Pneumatic tubing and cables must be placed correctly in E Pac to avoid problems with pinched tubing Problems During Service CAUTION A Technical Support phone number is listed in Section 1 EXERCISE EX of this manual to answer questions vou mav have during TREME CAUTION the servicing of the Atlas Monitor WHEN SERVICING THE ATLAS MONI Printer TOR THE CRT AS Print head printer motor and printer roller can be re SEMBLY AND CRT pla
84. HOSG 14P EE PS UNIPOLAR WINDING ge dae DC RESISTANCE 300 MAHONEY 9 Feb 99 STEP ANGLE 5 APPROVED DATE MATERIAL MAX HOLDING TORQUE 500 g cm O 4A PHASE LIF 03 01 99 PULL OUI TORQUE 230 g cm 330 pps GE DATE FINISH DU qu EC ER qp qe So DADES J BELLO 02 26 99 NO LOAD SPEED 1000 pps MIN TU 2 JOKOMME IL SP Ee E eee ol NS MOTOR STEP OF Wee K ee els Soup io JITLA CAD SOFTWARE Prot GROOVE D9 32 x 3 32 TRANSLATED FROM dxf WE Dis PAE A E d ROM A E OPN IO See VH UNLESS OTHERWISE SPECIFIED SE i 3 DIMENSIONS ARE FOR REFERENCE ONLY TOLERANCES DIMENS IONS P 620152 B XXX i 005 INCHES a ANGLES xE2 SCALE NONE SHEET of I23S210 620194 REV DESCRIPTION ECN ECO INIT DATE CKD NT TIT 7 D INTRODUCE 620154 MT 41401 omc 416799 TE PANS O20 l O4 LS FOR USE DI SKANEATELES THE PART IS THE SAME AS 1235210 p 620154 JASST NONIN SPO BOARD 8 1255210 ASSY NONIN SPO2 BOARD THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC SCALE 000 2 50 REF 2 88 MAX l 15 REF 88 MAX SHIELD SOLDERED TO BOARD 4 PLACES 2 00 REF 2 50 MAX 10 REF IS MAX MANUFACTURER BOARD IDENTIFICATION 754 XXX B FIRMWARE S ART NO REVISION NOTES MANUFACTURER NONIN MEDICAL INC MINNEAPOLIS MN 111 003 WELCH
85. Hg C23 NIBP Overpressure 047uF D NIBP Valve Close SPO2 Rx l S NIBP PWM ADC CRT Board O lt SpO20ut NIBP Offset DAC Connector U1A 74HCT04 Bos A J6 Video VSvnc 3 3V 3 5V C30 v Video Data TI 10uF 4L Main PCA m CONS D C3 Connector jie RS232 RX 3 A Q D SS 6 U8 1 LG NIBP PWM ADC QS IP17 U8 3 a wes Ill 5 E10 RS232 Tx TP13 U8 5 U8 e C2 L12 _ PIC Data GINES U8 2 SP232ACN 047uF MAA L14 RS232 Rx III U7 TP15 U8 6 G 216 SPO2 Tx B AT24C02N 10SC 2 7 TP16 prm 218 SPO2 Bx R15 TP12 TP14 D e II O m20 ADC Clock 1 96K NIBP Data 214 22 _ FE Clock C31 C32 C33 C34 C5 047uF NIBP 15mmHg 23 R24 SPI Data Out 0 tuF 0 tuF TE 0 tuF Wi LED Latch 258 26 SPI Clock pr SI P18 des s Vbackup Video HSync a L28 Batt ID 5V d Y Spare 3 294 630 FE Data Vbackup J 337 Se A NC IT NIBP Valve Close 355 L36 PIC CIk PIC Clk R16 Video VSync 874 538 _ Speaker Audio Sneak LAUG 3 48K U3A C1 NIBP Offset DAC_ 397 540 74HCTO8 047uF A E NIBP2 PW ADC D 450 LAG Key Latch n E ATA LAB a EE GD _ Nurse Call Rec Clock B52 l RecData 535 54 Key Latch n HRESET gt Il HRESET P55 56 SPLdata in 574 558 U3B 596 560 74HCTO8 LED Data A rq j C EZ U3C AA 74HCT08 from J4 20 to J4 55 gt gt PIC Vprog gt Rec clock 22 Rec Data Rec 12V N J7 Rec Supply On C8 IE 047uF H4 fare A Rec Data Latch o gt gt Pr
86. If heart rate beep is not silent on power up goto NVRAM3 Press SPO volume button 8 times Pulse tone should get audible and then louder If heart rate beep does not change volume Replace Display Board hardware Disconnect ECG cable Should hear Technical alarm and see error message If alarm not heard Press lt HR ALARMS Offs button Should stop Technical alarm sound erase error message and light LED in lt HR ALARMS OFF gt button If alarm not silenced If error message not erased If LED not lit Press lt HR ALARMS OFF gt button again Should hear Technical alarm sound see error message LED unlit in HR ALARMS Off button If alarm not heard If error message not displayed SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 25 Section 3 Troubleshooting 3 4 Diagnostic Tests 26 WELCH ALLYN ATLAS MONITOR If LED not unlit Turn system off and on to clear state SPO pulse tone Attach SPO2 cable and cuff and attach to simulator Set simulator to normal heart and SPO settings should hear heart rate beep different tone than when ECG was connected If heart rate beep not heard Change SPO setting on simulator should hear tone pitch change up or down tracking simulator setting If pitch does not change with simulator SPO2 per centage changes Limit Alarm alarm volume control Silence button Technical Alarm lt SPO ALARMS Off gt button Press right lt Select gt button until SPO LO
87. LIC values System should show MAP value MAP value should match what is shown by simulator 77 Set simulator to highest Systolic lt 250 lowest Dias tolic gt 30 and lowest heart rate gt 30 78 Press lt AUTO gt 79 X goes unlit 1 flashes for 10 seconds 80 20 seconds after 1 stops flashing BP measurement Starts 81 BP reading as above 81 1 lf BP does not start Replace main board 81 2 lf BP measurement incorrect recalibrate SERVICE MANUAL 6200 43E REV A Section 3 Iroubleshooting 3 1_ Functional Test and Initial Diagnostic 82 No less than 30 seconds after completing the measure ment another measurement should start While it is pumping up press lt BP START CANCEL gt Measure ment stops immediately and pressure is dumped as seen on manometer on simulator 82 1 lf measurement does not stop immediately Main board or button 82 2 If pressure does not drop below 10mmHg immediately Main board 83 Press lt AUTO gt and X lights up not flashing 84 Disconnect the tubing from the BP porton the Atlas 85 Press lt BP START CANCEL gt and note the time to the second 86 The BP should abort with an alarm after no longer than one minute 87 Cvcle power on Atlas connect a 5 lead cable set to the ECG simulator Note Simulator must sup 88 Configure the simulator for NSR 100BPM and Imped port impedance respirator ance Respiration 89 Plug the cable into Atlas 90 Press lt DATE TIME gt
88. MP UP SPEED MUST PRESSURIZE STANDARD VOLUME OF 300 cc To S0 rol 2300 MERGI IN LESS TRAN FO SECONDS Al RATED POWER MAXIMUM PRESSURE Tal Potr AAO parir F OR ER ONL Y FLOW RATE 2 0 LITERS MINUTE AT NO LOAD ILO LITERS MIN AT 3 9 PSI 200 mmHg IDI TY CNONCONDENS ING UM C SEQ H SCH REV DESCRIPTION ECN ECO INIT DATE CKD A CHANGE AMT 40863 7172 DMC 10 25 96 TE FAN Celoso US FOR USE T SKANEATELES THE PART IS THE SAME AS 1685104 x 620156 POP 6 Wo 10 PS fe 1685104 EN 1089104 PUMP 6 VDC 10 PSI A THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION YAY Z 77 7 A APPROVED DATE MATERIAL REL TO PROD DATE FINISH J HOWARD TITLE PUMP PNEUMATIC PRO E 6 VDC 10 Pol TRANSLATED FROM UNLESS OTHERWISE SPECIFIED SES REV TOLERANCES DIMENSIONS 1685104 620156 H XX 02 7 ARE IN eS IN pR SHEET of REV DESCRIPTION ECN ECO INIT DATE CKD A RELEASE TO PRODUCTION X2 9509 ras JRS 2 18 99 T W
89. MTXD1 RS423 Rx RXD2 RS423 Tx TXD2 100 R80 RS423 CTS PC9 Nurse Call PB18 Key Latch Key Latch x NIBP Valve PAG 100 R82 SPl clock SPl clock x SPl data out SPl data out x LED Latch LED Latch x SPl data in SPl data in x 100 R85 Recorder Data Recorder Data x Recorder Strobe Recorder Strobe x Recorder Clock Recorder Clock x Recorder Data Latch Recorder Data Latch x 100 R87 Video Horizontal Svnc HSYNC x Video Vertical Sync VSYNC x Batt ID PC8 NIBP Data NIBP Data x C90 C91 C92 C93 199 R88 NIBP Offset DAC NIBP Offset DAC x Rec Paper Out PC7 AC On gt lt PC5 100 R90 FE Clock FE Clock x FE Data FE Data x ADC Clock ADC Clock x NIBP Fault NIBP Fault x 100 R116 Spare 1 PB19 Spare 2 PC13 Spare 3 PB17 NIBP2 PW ADC TIN3 100 IP B 2 7 Recorder Motor Step Change Reset IC U3 No Load C40 E Component change for 5 39353 tal frequencv modulation VDDH w BR_n 6 19K R127 VDDH 24 YY DI n 6 19K R128 VDDH J BB n 3 09K R129 VDDH J N Y TA n 3 09K R130 VDDH SE lt TEA n MODCK 0 0 Selects 32KHz as main oscillator 3 09K R131 RSTCONF 0 allows 823 to sample data bus during HRESET KDSCK Sni 1 58K R132 lt ALE_B NL R133 lt RSTCONF_n 1 58K R134 lt TRST_n 1 58K R152 R151 215 Video Data EE a C122 22pF VDDH R78 Recorder Motor Step x 76 8KHz TEXP PC4 Main Power Sync Main Supply On On Standby Key R120 R81 EKG PWM ADC TIN1 NIBP 1
90. N x Nus Cf 1 24V TP610 U608B fVee TP613 Q TP616 TP617 TP618 SW RLD LA C630 A e e SW RLD RA L 4 7UF Ee fVcc TP615 OO 4 Resp DC gt U604F U601B v 74HCTO4 MC34072 Resp LdsOff Temperature GEES Amplifier fVcc R624 TP620 51 1K O R626 D U608 3 1K Y f 1 24V gt U608 1 Patient Temp C633 U608 2 01uF E TP623 C634 01uF Q Clamp Clamp YV D602 R627 1 21K BAV99L 0 1 KI E C635 01uF fVcc us J601 10K Q Temp In u5V J601 3 Temperature C636 i CON2 Th 2200pF R602 EIMISLOL 73 2K U601 1 R606 f 5V U601A 3 48K N dE R603 Vt MC34072 gt 46 4K q U601 2 C601 fVee PWM 0 _U604 10 E R604 1000pF ids 10K Converter U604E D6Q1 2 74HCT04 4 Q D601 TP633 MMBD1503A Integrator E input 833uSec U604 10 5V Comparator Inputs Analog In 5V PWM Out U602 7 PWM timer Sw RespReset TP611 TP614 Y TP626 C603 680pF U602 3 iso 5Vdig gt Serial Parallel Y U605 C629 047uF 047uF DVE DVE U606 C631 iso 5Vdig Control Data U605 74HCT595 U606 fVee U602 LM311 NE R630 10K TP642 iso 5Vdig R608 1K TP629 nnn f 5V TP638 U604A a d 74HCT04 U604 2 O P636 VE f45V U604B d 74HCT04 U604 4 4C rte VE U605 12 C646 1000pF E f45V U604C Si 74HCT04 U604 6 Ve VE f45V o lt e O Q 58 gt U604D 74HCT04 E iso 5Vdig TP639 R613 Y 6 19K e R628 O 10K cO LS C643 220pF DN E DWE iso 5Vdig TP6
91. NM L AAB ech THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE COLOR CODED 00S Mik NOM WX UNSULAJT EON OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION TEMP RANGE 10 e jo Geog E See SE cher ENEE JE m s VOLTAGE RATING 300V APPROVED DATE MATERIAL STRANDED TINNED COPPER CONDUCTOR CDM WIER REL TO PROD DATE FINISH SRECOONM ZED COMPONENT MARK RU SAND CoA MUST A REL LO 1 2 90 BTE ON POOL SOR BE STAMPER ON WIRE GABLE How CAD SOFTWARE PE er TRANSLATED FROM ME 0 UNLESS OTHERWISE SPECIFIED SEN um EI 620524 XXX 005 INCHES ANGLES 2 NONE SHEET at Appendix E Equipment for perfoming Safety Tests on the Atlas Monitor Description Modified AC Cord Safety Analizer Hi Pot AC Power Source CAUTION High Voltages are generated and used during the HI Pot or Dielectric Test DO NOT OPERATE THIS EQUIPMENT AND OR RUN THIS TEST UNLESS YOU HAVE BEEN PROPERLY TRAINED AND ARE QUALIFIED ON THIS PROCEDURE Tool Company T 16761 Welch Allyn 601 Pro Series BioTek Model 3500D Associated Research Model EW 371 Elgar Test Procedure for Atlas Safety Test Station Leakage Test Procedure 1 Verify that all plugs removed from the Elgar AC Power Source and the Biotek 601 Pro Safety Tester 2 Turn on EW371
92. PESH Iiia LOCI olei EENS aang ERES lajsifiax E mengt Du ejep ssauppe JOA u ata dd 272 eng Utaugie pao Byuo7 sng vonemnmbyuoo ula e fr E CHAM jsAsqns O2 HSW14 91xx95z josuas 09 Ee O DIA MAS A SU G H sjgubi aeptA AS ns 1325 weibeig 490 19 uieis S ep CL uonoes WELCH ALLYN ATLAS PATIENT MONITOR 5 SERVICE MANUAL 6200 43E REV A Section 2 Service L 2 1 1 Inspect shipping package and product for damage Make a record of possible shipping damage 2 1 2 List accessories in box power cord SpO probe ECG leads ECG lead cable Cuff s Operator Manual nasal CO Line ECG Electrode s temperature probe BP tubing paper loose parts describe L1 L1 E1 L1 L1 F1 EI F1 E11 EI E31 E O M wm Clean and disinfect by following the instructions printed in the Operator Manual O 2 1 4 Operate the Atlas to verify the customer complaint before making any changes to the unit Call the customer if the complaint is unclear NOTE Perform REPAIR TESTS in Section 2 2 to fully inspect the Atlas monitor before and after servicing Refer to Section 3 for Troubleshooting help 2 1 5 Ifthe unit has caused or is suspected of having caused an injury of any type DO NOT DISASSEMBLE OR REPAIR THE UNIT IN ANY WAY Contact Welch Allyn Customer Service immediately SERVICE MANUAL 6200 43E REV A 2 1 Incoming Inspection Service Intervals for Calibration and Main tenance are listed in
93. PP Vertical Sync R1 Ramp Generator 1K u2 1 Modify Video e 5 39339 JJC 4 15 99 ZIP 5V 2 12V Increase Flex Se to C a inches 5 39831 LPP 6 24 99 LPP R2 if U1 3 12V 12V 7 50K Width Coil Inductance C3 C4 12V L3 increased 5 40006 7 23 99 T 047uF 047uF R12 R19 SENE 562 562 Ge KA Q1 Q3 a3 b 16 mSec OO MPSWO1A MPSWOTA BA NY U4A R3 R20 23 7K ramp 169 R22 m 4 2 1 e 10K U1A TLC272 U2A R21 U2B R52 74HCT04 Mc34072 562 MC34072 1 96K R43 q4 b 5 11K el uF Q2 R16 10 Q4 MPSW51A MPSW51A V Size Adjust d6 c To Yoke D6 D1 1N4148 1N4148 To Main Board 412V U3 J1 VIC78LO5ACP VIN VOUT gt gt 45V K a U1B TLC272 C6 e C7 co 047uF 047uF R8 NZ 41 2K Zero Adjust CON6 NY 12V J N cadj R9 R11 45V vcadj vcadi 1 47K RIO 1K 1 96K SS 3 6 Position flat ribbon cable 3 Connects Main CRT to CRT socket Board Horizontal Syne 12V SE Break Away CRT socket Board OU qq AAA hlin hwide e 1 2W Carbon Comp L2 L3 C8 15uH 15 35uH 12V R44 330 Q6 022uF J3 1 U4B C22 tube q1 REE 022uF E l n 64 u4 4 3 3 5 tube 12V x 2N3904 To CRT tubegnd 4 TI Anode 5 5 J3 5 AR 5 74HCT04 CRT FBT EA x J3 6 Mg E tubeg4 7 Flex6 Flex6 CRT Socket V V WM V V WA D HA d IU ZA LN A A A R50 PT i Horizontal Amplifier all Grid Voltages C11 1000uF 12V i D3 l T D2 E v 1N4935 lt Vvid Grid1 1 2filt Q Vd 2 47uH E C15
94. Q8 Vvid N Video Amplifier C19 3 01uF Q8 1 2N3904 D7 1N4148 Q7 BS170 74HCT04 6 Recorder Electronics 6 1 Overview Atlas includes a thermal strip chart printer optional on Model 200 and 210 standard on model 220 The user can print either annotated waveform data or Patient trend information The printer specifications are Paper Size 56 or 58mm 2 1 4 inches Printhead Width 54mm 2 1 8 inches Resolution Vertical 8 dots mm 200 dots inch Horizontal 12 dots mm 300 dots inch Chart Speed 25mm sec 1 inch second The main CPU controls the printer Data timing clock signals and strobe widths are all generated by the FPGA on the CPU board These signals are buffered on the recorder board inverter U5 before transmission to the printhead Appendix A 10 14 99 6 2 Power Supply 24 Switcher It is necessary to generate 24VDC for the print head and motor The input to the 24V switcher is either 12V from the AC DC converter or Battery voltage on the model 210 220 when AC is not present The circuit is configured as a boost PWM using current mode feedback The PWM controller is a UC3843A The controller includes an internal 2 5V 1 reference and an external 5V 1 reference Nominal output voltage for the boost converter is Vout 2 5V 1 84 5K 10K 23 6V The converter will run at duty cycles over 50 which requires slope compensation for a current mode controller S
95. R COPIED OR USED AS A BASIS FOR MANUFACTURE EVICES WITHOUT WRITTEN PERMISSION TOLERANCES XX E Do XXX 4 005 ANGLES 2 UNLESS OTHERWISE SPECIFIED DIMENSIONS RE IN NCHES DRAWN DATE JB ENGEL I3 Apr 99 APPROVED DATE MATERIAL P 4 15 99 REL TO PROD DATE FINISH J BELLO 4 15 99 IK OMe rr ile En CAD SOFTWARE SC ss a TRANSLAIED FROM ME 10 DRAWING NO REV U SEA A SCALE NONE SHEET of REV DESCRIPTION ECN ECO INIT DATE CKD A RELEASE TO PRODUCTION 5 39928 JRS 7 2 99 TW X bd qp T TS E E E ee SAA NOTE CATHODE SINGLE LOOP ALL WIRES ORIENTATION THROUGH FERRITE o PIN j ge E z AS q K GH S NT R O 100 3 PIN o e n CLEAR HEAT SHRINK o 0 9 DIODE MOTOROLA P N IN4148 8 FAIR RITE P N 2643801902 1 SHRINK TUBE 6 WIRE 226A YELLOW 5 WIRE 22GA ORANGE TI 4 WIRE 22GA RED 3 WIRE 22GA BROWN 8 2 CONTACTS MOLEX 08 50 0113 NOTES 2 4 PIN CONNECTOR MOLEX 22 01 3047 QTY ITEM DESCRIPTION I ALL CONNECTORS ARE TO BE UL RECOGNIZED COMPONENTS AND CSA CERTIFIED CONNECTOR MATERIAL SHALL HAVE FLAMMABILITY RATINGS OF 94V 2 OR BETTER 2 WIRE SPECIFICATIONS PART NO DESCRIPTION SPERE WaLa El GSACA
96. R525 To LA K 9 R516 MC34002 10K Sw RLD LA gt 10K i To RA 6 RL mux C Diff O Sw RLD RA gt B VE jen Do P lt Diff fVee 5 DG202CSE TP552 Q 2 5 7 High Pass and Gain Stage The signal from the output of the differential amplifier is AC coupled before a final stage of amplification The High Pass Pole is set to less than 0 05Hz a 3 3 second time constant Large DC signals are sometimes present for example following a Leads Off condition In order to quickly restore the baseline a transistor switch Q504 Q505 is used to change the AC pole time constant to 0 33 seconds Op Amp U508 provides the final amplification prior to the A D converter High Pass 0 05Hz or 0 5Hz Gain Stage 2 pole low pass fVec Gain 74 C515 R550 3 3uF 19 6K ecg hp Diff out 4 An ECG R548 R549 1Meg 110K R551 C517 73 2K 01uF Q504 d NE R552 1K Q504 2N7002 Q505 2N7002 2 6 Temperature Amplifier The temperature option of Atlas is designed to operate with YSI 400 series probes This probe has a negative temperature coefficient R 30C 1815Ohms R 40C 1200Ohms The temperature amplifier is configured as a non inverting gain stage The positive input to the amplifier is a 1 25 V reference The output of the temperature amplifier is V Ref 1 Rfb Rthermistor The A D converter will digitize the An Temp input along with the reference voltage and ground The gain of the A D can be calibrated from the reference voltage measur
97. SH QLD D E 620169 THES PART s 2 PART NO DESCRIPTION WHITE A B ACK THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC 3 4 AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE RED OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION CABLE DRAIN SHIELD YELLOW gc i PO JB ENGEL 4 May 99 4 APPROVED DATE MATERIAL 8 3 ASi 2 18 99 8 REL TO PROD DATE FINISH NOTES DBS MTA Ma e J BELLO 2 18 99 Ome cae TITLE ALL CONNECTORS ARE TO BE UL RECOGNIZED COMPONENTS AND CSA CERTIFIED CABLE JS CONNECTOR MATERIAL SHALL HAVE FLAMMABILITY RATINGS OF 94V 2 OR BETTER CAD SOFTWARE PE NELIGOR SENSO TRANSLATED FROM MEJO DRAWING NO 2 CABLE ASSEMBLY TO BE 100 TESTED FOR POINT TO POINT e ea 620169 AND SHIELD OVER SHIELD CONTINUITY AH E T ai t CA NONE SHEET een D VIEW GROUND WIRE NOTE FEED DIRECT TON PARTIAL ASSEMBLY NOTE ORIENTATION OF WIRE 020201 X1 MI REV DESGRAT TAN ECN ECO INIT DATE CKD RELEASE TO PROD ENG ISOJJOM JO AE EOS TW o hes 2 GE IWIST 3 4 TIME T gt p gt SUB ASSEMBLY WITH FAN SUB ASSEMBLY WITHOUT FAN 0202012302 620201 30 PART NO DESCRIPTION OR SALE OF EQUIPMENT OR D THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC AND SHALL NOT BE REPRODUCED O
98. SYSTEM FAULT message and NIBP is disabled A redundant safety transistor 1s opened to ensure the NIBP pump is off and the valve is open The primary and safety transducer outputs are continuously digitized The outputs of the transducers are checked vs each other and if they disagree an NIBP Fault Message is declared and the NIBP system is disabled The outputs of the transducers are linearly proportional to the supply voltage supply current for the safety transducer The transducers use unique reference voltages to ensure that a fault in one reference will not cause an equivalent gain error in both transducers The A D also has redundant checks Two reference voltages derived from the primary transducer reference supply are measured and the A D gain and zero is checked In addition a unique reference is digitized and compared vs expected results An error in any of these A D measurements will again cause an NIBP Fault Message and the NIBP system will be disabled 4 2 Primary Transducer Amplifier The primary pressure transducer is a fully calibrated and compensated transducer with built in voltage amplification The output of the transducer is proportional to the supply voltage With a 5V supply the output of the transducer is OmmHg 0 5 V 300mmHg 4V Op amp U204A is used to level shift the output of the transducer such that the nominal voltage for OmmHg is set to 0 75 V The CPU monitors the digitized zero press
99. SYSTOLIC should be very close to the Initial pressure setting of 280 mmHg If pressure shown exceeds 300 mmHg Replace Main Board hardware system should step down pressure showing step values in SYSTOLIC LED and then display correct SYSTOLIC and DIASTOLIC values System should show MAP value MAP value should match what is shown by simulator If in process display is wrong or blank If final Systolic Diastolic MAP display is incorrect Calibrate BP Set simulator to highest Systolic lt 250 lowest Diastolic gt 30 and lowest heart rate gt 30 Press lt AUTO gt X goes unlit 1 flashes for 10 seconds 20 seconds after 1 stops flashing BP measurement starts BP reading as above If BP does not start Replace Main Board hardware lf BP measurement incorrect Calibrate BP No less than 30 seconds after completing the measure ment another measurement should start If measurement does not start automatically Re place Main Board hardware While it is pumping up press BP START CANCEL gt Measurement stops immediately and pressure is dumped as seen on manometer on simulator If measurement does not stop immediately Replace Main Board hardware or Display Board hardware if button is the problem If pressure does not drop below 10mmHg immedi ately Replace Main Board hardware BP Valve Press AUTO and X lights up not flashing Disconnect the tubing from the BP port on the Atlas Press BP START CANCEL gt and note
100. Si 7 12 99 UE Sr A e Ou REL TO PROD DATE FINISH J BELLO 7 12 99 3 SUPPLIER REV C OR HIGHER or POWER SUPPLY SOW CAD SOFTWARE PRO E TRANSLATED FROM UNLESS OTHERWISE SPECIFIED NG Wm Er 620150 anoles 2 TT NG SCALE SHEET of REV DESCRIPTION ECNAEGO INIT DATE CKD TE A RELEASE TO PRODUCTION X16 5 39056 JRS 2 25 99 T W Kan c gt TAI 2 l S D REVISED WIRING AND PIN LOCATIONS 9 7 39993 JRS 11 20 9911 W MAX s o a FO o FE d y GEAR DATA NOUS E He SER Ee xz Los DIAMETRAL PIICH o 4 sl an r PRESSURE ANGLE 20 AGMA CLASS 6 OR BETTER MATERIAL BRASS CDA 360 ae fov gt SEE NOTE 2 SE s Vm EE ss i 105410 LI I JL 001 ONO E STEP PIN PIN 2 PIN 3 PIN 4 PIN 5 PIN 6 26 AWG PIN RED 2 O BLACK RED BROWN YELLOW RED ORANGE BROWN PIN 4 CCW LED DUI TEO DIM S ARE IN mm DRIVE CIRCUIT MOUSE quaeque mJ LNG Dore ab ON TAS T PART NO DESCRIPTION NO ESO THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF WELCH ALLYN INC AND SHALL NOT BE REPRODUCED OR COPIED OR USED AS A BASIS FOR MANUFACTURE OR SALE OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION I NMB PARI NO ISBA
101. WELCH ALLYN ATLAS MONITOR NVRAM_COMMON TXT NVRAM_NO_PRINTER TXT or NVRAM_PRINTER TXT NVRAM model 200 210 220 TXT NVRAM_ lt LANGUAGE gt TXT 2 5 5 After these text files are transferred Type the following serial commands to update the serial number nvram setserial X last 3 digits of serial nvram write hwreset hardware reset restarts Atlas and saves the new settings 2 5 6 Verify the serial number correct 2 5 7 Recalibrate Atlas unit After calibration is complete 2 5 8 Check alarm settings and User selected advanced Configurations 2 6 Downloading Software amp NVRAM Text files 2 6 1 Use atlas_dl exe as in step 2 4 to Program new CPU board 2 6 2 Use Hyper Terminal as in step 2 5 to set NVRAM on new Main Board 2 6 3 Recalibrate Atlas 2 6 4 Check alarm settings and User selected advanced Configurations NOTE Firmware Download Software versions of OEM boards are not field upgradeable SpO boards or the CO board Replace the subsystem board with a higher current version if necessary SERVICE MANUAL 6200 43E REV A Section 2 Service 2 7 Product Model Number Structure 621S0 ECG Nonin SpO NIBP 621SP ECG Nonin SpO NIBP Printer 622S0 ECG Nonin SpO NIBP Temp Respiration Battery RS232 Nurse Call 622SP ECG Nonin SpO NIBP Temp Respiration Battery RS232 Printer Nurse Call 622N0 ECG Nellcor SpO NIBP Temp Respiration Battery RS232 Nurse Call 622NP ECG Nellcor SpO NI
102. Waveform print quality Text print quality Not functional Feeding but not printing Failed printer CRT CRT is blank CRT cables Reinstall software Failed CRT Failed Deflection board Failed Main Board 12 WELCH ALLYN ATLAS MONITOR Service Manual 6200 43E Rev A Section 3 Troubleshooting mm ECL ECG waveform not displayed dashed lines ECG waveform not properly scaled ECG waveform not cascading Heart rate not detected Heart rate disagrees with Pulse rate Heart rate disagrees with manual palpation S jj Sp0 displays not active 3 2 Chief Complaint Cause and Corrective Action Patient electrodes Lead wires Cable ECG cable connection Failed main board Possible patient phvsiologv problem ECG gain set to 10mm mV in Advanced Configuration Incorrect Advanced Cofiguration setting Patient electrodes Lead wires Cable ECG cable connection Failed main board Possible patient phvsiologv problem Patient with Pacemaker Possible patient physiology problem Patient with Pacemaker Possible patient physiology problem Incorrect brand sensor Failes Sp0 board Failes Sp0 sensor Check gain setting Reinstall software ECG 1 Change Advanced Configuration setting to Second trace source ECG ECG gain automatic Repeat on another patient ECG 1 SPO 1 Compare manual palpation Reinstall software Does patient have abnormal ECG Repeat on another patient ECG 1 SPO
103. afet Y 047uF TP224 Print Temp C211 Transducer Q A 047uF n TP226 co A Y R227 R228 P202 Out 5 11K U205 3 SE 1 96K U206A R223 C214 C217 C210 R229 U205A MC34072 21 5K 047uF e 047uF 1 96K MC34072 047u P202 FPNS 07PGR Z C212 680pF P 5V Y R224 1K TP232 Q P202 Out U206B R225 R220 MC34072 1K 806 C218 _ TP233 4 7uF 5VRef U207A WA Y 7 s 74HCTOO P 12V Zero R221 R226 C215 ME s NIBP ADC Clock gt Se sss 3 16K TR237 21 5K 047uF l TP238 d U205 7 TP234 Y C213 R222 U205B 01uF 1K MC34072 A A 5V 2 T202 Q TP209 d P4 25V PrimaryPres SafetyPres Al P227 R206 R209 1K C223 01uF P 5V gt R207 464K 7 R210 464K NIBP Safety gt D201 MMBD1503A C230 047uF U203A LM393 U203B LM393 R240 10K R241 10K U209 4051 U209 Out U208A MC34072 C220 3 3V Over Pressure Fault Cif urt 3 3V See ECN worksheet Improvements for ESD RFI and Fast Transients Correct Respiration Diff Amp Topology Mods to U2 clock line Resp gain amp ECG supply and NVRAM pullup R208 1 96K P 5V gt gt NIBP Overpressure P 12V U208B R211 MC34072 1 96K gt gt NIBP 15mmHg 12V 5V Vpump V Y R242 10K TP213 m Q202 lt gt MMDF2N02E TP215 Q202 G d Q 0901 8 0901 R243 NN MMBT3904L lt 100K D202 BAV99L 01 Valve 1 T 2 N 3 E 4 5 Q CON5 R246 31 6 E E Q203 MMDF2N02E NIBP Valve Close gt
104. age generated above The objective of the vertical amp is to match the current through the vertical coil with the input ramp control voltage Current through the vertical coil is monitored through the sense resistor formed from R15 R16 and R17 Voltage across the sense resistor is measured with the differential amplifier UIB This voltage is then used as the feedback voltage to the control opamp U2A 5 2 3 Zero Adjust The output voltage from the ramp generator is a ramp from 5 0V to 1 05V nominal The center of this ramp is 3 0V Then the output of the current sense diff amp must be offset by 3 0V This is accomplished with the Zero Adjust Network Resistors R9 R10 and R11 Vertical centering is then accomplished by writing a pattern to the CRT and adjusting R10 to center the display Size Adjust Adjusting the current through the Vertical Coil changes vertical deflection The voltage across the sense resistor 1s Vsense Vramp Voffset 1 02 1 02 is the gain of the current sense diff amp Current through the coil is equal to current through the sense resistor network Icoil Isense Vsense Rsense Then adjusting the value of the sense resistor will change the current through the vertical coil Vertical gain is then accomplished by writing a pattern to the CRT and adjusting R16 to set vertical deflection 5 3 Horizontal Amplifier Current through the transformer increases linearly as Transistor Q is On I VdT L When t
105. ains on applied part 50 uA Maximum E i mann Desen printer ony mU Oms Mex 1 L L Dielectric Withstand Test Results Viains to tarth 4 0kV 3mA Max NENNEN AAA LO E ASA AA PA E A unctional Tests Results an AA EE O 3 Boog Pressure pop el ll E GEES j N GEES emperatre L RRE Other IAS IO r E allure Detal Viade
106. atient Use gel adhesive tape to improve contact Excess aiflow sunlight on probe Protect probe from light airflow Failed probe Temp 1 Cannot read wrong language Language set wrong Top entry is always language Step through choices with lt SET gt button while top item is hightlighted Does not work Relay failure Connect Ohmmeter across pins 1 and 8 Intermittent signal Cable Expect infinity Force an alarm state and Cable connection expect 0 Ohms Brief signals Battery tone errors Connect AC Battery warnings will signal Nurse Call for only a second every minute or two 14 WELCH ALLYN ATLAS MONITOR Service Manual 6200 43E Rev A Section 3 Troubleshooting Remove all instrument cables and hoses 3 3 TOP LEVEL Install printer paper if printer is fitted TROUBLESHOOTING INDEX Review customer complaint and determine if it is safe to plug in and turn on Atlas If not safe to power up smoke flames smell reported Goto Power 1 Check power available light Goto Power 2 Check power up state Goto Power 3 Set language and Preserve customer settings Goto Test Setup 1 Check date time Goto Test Setup 2 Reset to factory defaults Goto Test Setup 3 Check software firmware Goto Test Setup 4 Check CRT Alignment Test Goto CRT 1 Check Button Test Goto Button 1 Check Display A D Channels Goto A D 1 Check LED test Goto LED 1 Check Printer alignment test Goto Printer 1 Check Printer function Goto Prin
107. ator replaces cuff to drive subsystem Or Calibrated SpO simulator that has a cuff fitting that simulates a perfused finger Nonin Settings for NoninPatient Simulator 8000S are 98 O 80 BPM SpO board accuracy after 25 second stabilization period must be within 2 O and 2BPM Nellcor Settings for Nellcor Patient Simulator SRC 2 are 81 O and 112 BPM SpO board accuracy after 25 second stabilization period must be within 2 O and 2 BPM 2 2 11 TEMP ACCURACY VERIFICATION Need Calibrated thermometer DIGITAL OR GLASS small insulated container with cover for warm water 2 2 11 1Fill container wtih approximately 96 degree F water 2 2 11 2Attach temperature probe neaqr the sensing part of the thermometer and insert into the warm water 2 2 11 3Accuracy must be within 0 2 degrees F SERVICE MANUAL 6200 43E REV A Section 2 Service Table2 1 Tools Required for Service Calibration and Software er Test Volume Tt use Alyn Bezel Iray to protect front of Atlas during svc onnector Separator lool Deflection Main boards els Printer Connector Pliers Blood Pressure fitting Nut Driver Printer Motor Nut driver 10 TORA screwdriver o deep socket for lemperature Port nut queeze Bulb and Valve alibratea Manometer 0 10F e e e N KI zl al e i ii Di oi O OI O O lt lt ke gt 3 Cl lt el x CO O10 yn Xcelite branc generic 1 4 drive ATlyn rystal Engineering 00 200
108. attery 1 5 2 3 3V Regulator 3 3VDC is derived using a three terminal regulator The output of the 5V regulator is used to power the 3 3V regulator The 3 3V regulator does not have an independent shutdown but powers down as the 5V regulator shuts down Batt Charger input gt From Batery Charger Circuit Battery gt To Q309 lt lt ACON gt 2 Patient Isolated Circuits 2 1 Isolated Power R342 19 6K Q310 b_1 Q311 MTP30NO6VL 12V R343 10K R343 1 D309 BAV70L Q310 2MMBT3904L C323 T 100uF 5V Linear Low Dropout 12V AC 12V fuse gt Q312 MTP30NOGVL U 3 HS302 Heatsink forQ312 6078 C325 0312 9 100uF U306 R348 LF33CV 10K 1 IN C324 R347 1000pF 10K C328 047uF N s k bu 8 8 7 x baal ise 3 3 D311 Appendix A 2 R349 1 10K 3 U305 3 U305A KSVRef MC34072 co C326 R350 01uF 10K BAV70L C327 047uF 10 14 99 gt gt Vpump gt gt 5V our gt gt 3 3V C329 C330 100uF 047uF D L Isolated power is provided to the ECG Temperature Respiration and SpO2 circuits using an Isolation Transformer T401 The power supply is a PWM controlled flyback converter The PWM controller is an LM3524 Output voltage f V is sampled and compared with the reference voltage s 5V An error voltage is generated and this voltage returned via opto U410 Voltage f V is regulated to 7 4V Additional taps on transformer T401 provide f V
109. ced as necessary DEFLECTION Printed Circuit Boards E eae e There are no component level repairs for the Printed MATELY 8 000 Circuit boards These are replaced if found to be de VOLTS fective During the warranty period boards that are found to be defective should be returned to Welch Allyn CRT The CRT and CRT Deflection Board are aligned at the factory and as such are replaced as a matched set if one or the other should fail in service SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 1 Section 4 Disassembly and Repair Domestic Unplug Monitor from Mains before disassem bly EXERCISE EXTREME CAUTION CAUTION WHEN SERVICING THE ATLAS MONITOR THE CRT ASSEMBLY AND CRT DE FLECTION BOARD OPERATE ON APPROXIMATELY 8 000 VOLTS ESD Circuit boards are sensitive to static electricity Use wrist strap ESD mats and ESD storage bags 4 1 MODEL 200 Dissassembly 4 1 1 Open the paper door and remove the paper roll Close paper door Place Monitor on a foam pad to A protect the front of the unit and the pressure fitting on the front of the unit 4 1 2 Remove 4 Torx Machine screws with Torx 10 screw driver 4 1 3 Open the rear housing and disconnect 2 ground wires from ground lug as well as printer cable Caution Do not pull display cable 2 WELCH ALLYN ATLASMONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 1 4 Unplug the printer cable from ja
110. ck J7 of the Main PCB 4 1 5 Remove Pump section 4 1 6 Unplug Display Board Cable from jack J8 of the Main PCB Note Make sure this end of the cable is installed in J8 during reassembly so that cable folds will be correct SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 3 Section 4 Disassembly and Repair Domestic 4 1 7 Remove E Pac from over the CRT 4 1 8 Unplug CPU PCB from Main PCB PCA connector J4 4 1 9 Unplug CRT socket board A Do not bend pins 4 WELCHALLYNATLASMONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 1 10 Protect CRT pins with cap T XXXXX 4 1 11 Unplug Yoke cables from connector J2 of CRT Deflection Board 4 1 12Unplug CRT Deflection Board from DAAE Main PCB with connector tool f T 16654 AN po not bend pins SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 5 Section 4 Disassembly and Repair Domestic 4 1 13Unplug 4 connectors from side of Main PCB 4 1 14 Remove Power Supply assembly 4 1 15 Remove alarm speaker 6 WELCH ALLYN ATLASMONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 1 16 Remove Main PCB from E Pac and disconnect tubing and connectors 4 1 17 Disconnect SpO board and remove itfrom E Pac 4 1 18 Remove main E Pac section SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 7 Section 4 Disassembly and Repair Domes
111. ct Blk Clip lead to common connection of joined ECG leads Q Position electrical leads at rear of test bench R Press green Test button Wait for 60 seconds S Record current mA Mains to Isolated RS232 Models 210 220 only 4000 VAC A Plug modified RS232 cable all wires connected into the RS232 connector at rear of Atlas unit B Connect the modified AC cord hot neutral and earth ground connected to the back of the Atlas Monitor C Connect the black lead banana plug to the return jack of the Hypot 3500 Dielectric tester D Connect the red lead banana plug to the HV jack of the Hypot 3500 Dielectric tester E Apply power to 3500D Press Set F Set voltage to 1500 VAC with up down buttons G Press Set H Set current limit to 3 mA with up down buttons I Press Set J Set Timer to 60 seconds with up down buttons K Press Set L Set Continuity off M Scroll through settings with Set button N When settings verified press Exit button O Connect the red clip lead from HV Jack of Hypot 3500D to modified AC connector cord with all lines connected Hot Neutral and Ground P Connect Blk Clip lead to common connection of joined RS232 leads Q Position electrical leads at rear of test bench R Press green Test button Wait for 60 seconds S Record current mA Atlas Test Results SG lg EME e eee meer war TT PT FTN S0 I SIOTEK Test Results Patient Leakage test 10uA Maximum es M
112. e If Atlas calibration Serial cable with connector COM1to PC was Satisfactory prior to File atlas dl exe downloading software then recalibration is not 2 4 1 Connect serial cable between Atlas and required PC COM1 2 4 2 Double click atlas dl exe explorer window 2 4 3 After downloading is complete check alarm and other User controlled advanced configuration settings since these are reset by this downloading process Downloading Operating System complete 2 5 Downloading NVRAM files with Hyperterminal 2 5 Downloading NVRAM The NVRAM resides on Main Board Hyper Text files terminal loads the following files after replacing Main Board cal init txt common txt model txt language txt printer txt if required Configure HyperTerminal orno_printer txt 9600 Baud 2 5 1Connect serial cable between Atlas and 8 bits PC COM as in 2 4 above 1 stop bit 2 5 2Open HyperTerminal program on PC no parity START no flow control PROGRAMS ACCESSORIES HYPERTERMINAL 2 5 3Turn Atlas ON You should see some version information and a prompt Pangea gt 2 5 4 Transfer Text files TRANSFER SEND TEXT FILE NVRAM_CAL_INIT TXT only if main board has been replaced SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 15 Section 2 Service 2 5 Downloading NVRAM Text files when replacing Main Board continued 2 6 Downloading Soft ware amp NVRAM Text files after replacing Main Board AND CPU board 16
113. e raw f V and f V voltages the following supplies are generated for the various patient isolated circuits 1 iso 5dig Regulated 5V supply This voltage is used to power the opto isolators digital control logic and 5V digital supply for the Nellcor SpO2 board 2 s 5V Regulated 5V supply Analog 5V supply for the Nellcor SpO2 board This is also the reference voltage used in the regulation of f V 3 f 5V Regulated 5V supply Filtered and buffered from s 5V this voltage is used for the A D reference 4 s 5V Regulated 5V supply Analog 5V supply used for the Nellcor SpO2 board 5 fVcc LC Filtered voltage derived from f V This voltage is used to power the Op Amps used in the ECG Respiration Temperature and A D circuits 6 fVee LC Filtered voltage derived from f V This voltage is used to power the Op Amps used in the ECG Respiration Temperature and A D circuits 8 1 f V 5Vd Wi ge SUE Ge Isolated Supply Voltages C430 222 2 C403 C406 Regulation and Filtering 047uF S 0 S O 047uF 100uF Ni CH S g al oY S45V u Ds C401 all SHTDN i C415 Lo gt 047uF9 i T tuF R416 TP460 2 U401B s Q ENS 10K O LM358 R415 TP461 h U401 5 5 100 E is U403 S gt gt 145V SF oN LP2951C C416 047uF 2 1 fV 2 IN OUT 3 s 5V 3 N o C421 C424 N o T uE 047uF w U404 s 79L05 SN L401 220uH Q gt gt Vcc C434 C431 T 10uF ER 10uF s s TP468 L402 220uH d D Vee C435 C432 10uF 10uF
114. e to Production 5 39173 3 18 99 m Component change for 5 39353 zm rss frequency modulation C Change Reset IC U3 LPP No Load C40 5 39830 6 24 99 VSYNC HSYNC Blank Video Clock 3 IRQ n 0 7 Y A 6 31 GPL 0 7 CS n 0 7 V NV NA A25 f IRQ n2 QQ eg ag 7 P99 ESE D a El P98 ES 29 N TIN2 c NUN I Er D 0 31 C El IT mm Y NIBP Fault x ET U7 7 CS n EN gt UP 773 EPF6016A DO TOR Eo AE EE VIDEO 0 7 idco o s g E Y 070 je E FE Clock x 2 yA o ECH EE PB16 sw Itsiss s NIBP Data x o 33 CR VIDEO er GEET E DREQ1_n AAA A A A EE Ee C ANNE F 2222222 BES 7 aad m 06070 7 es 1 SECH CIMA IA C h OC NIBP Overpressure x NIBP 15mmHg x PA14 Key Latch x PA15 PC12 gt PC6 gt PC11 gt DJO DIN O O O O O C2 iS iS iS iS iS iS iS iS iS S5 iS nCEO 49 P50 TDO 51 Audio DAC R S0 R66 100K R125 1 58K S1 R67 49 9K NSTATUS VDDH NZ S2 R68 24 9K SPICLK S3 R69 12 4K CONFIG DONE SPIMOSI S4 R70 6 19K 33 S5 R71 3 09K R126 TP80 S6 R72 1 58K S7 R73 787 Drawn Designed Checked SPIMISO CLKOUT Video Clock 25 SPIMOSI SPISEL_n Video Data x HSYNC x VSYNC x SPl data in x SPl clock x SPl data out x LED Latch x esistors lt Speaker Audio C121 330pF Welch Allyn Inc Jim Belesiu Mar 5 1999 Schematic 620005 dsn FPGA Approved as Pi J Bello 3 19 99 ae Release F
115. easuring a know pressure measuring the output of the safety transducer and storing calibration constants in NVRAM A two point calibration procedure is used Calibration is done at the factory and can be recalibrated in the field if necessary 4 3 1 Current Source Op amp U205A is configured as a current source for the Pressure Transducer with the current through the transducer set to 1 5mA Nominal gain for the transducer is 300mmHg 75mV 4 3 2 Differential Amplifier and Offset Centering The output of the safety transducer is a differential voltage with a nominal gain of 0 25mV mmHg and a zero pressure offset voltage of 25mV The A D converter has an input voltage range of 0 5V to 5V It is necessary to both add both signal gain and offset centering to the transducer output before digitization Op amp U206A B is configured as a differential amplifier with a voltage gain of 22 5 The output of the differential amplifier is offset by 1 2V U205B Appendix A 10 14 99 P 12V P 12V C216 Safety 047uF C211 Transducer 047uF TP226 Q R227 P202 Out 3 5 11K gt gt SafetyPres R223 C214 C217 21 5K 047uF x 047uF A R224 1K U206A MC34072 U205A MC34072 P202 FPNS 07PGR C212 680pF R225 MC34072 1K Va R226 C215 21 5K 047uF Zero Offset 01uF x 1K A WA MC34072 4 4 Hardware Overpressure The output of the primary transducer is monitored for two overpre
116. ed circuits 2 FE Data Clk Serial Data Clock 3 A D Clk Serial Data latch Also used as clock for PMW A D converter Serial Data is converted to a parallel format using Shift Register U605 and U606 The following Data is transmitted from the CPU board to the isolated circuits 1 Mux A D A Control bit A for A D Mux 2 Mux A D B Control bit B for A D Mux 3 Mux A D C Control bit C for A D Mux 4 Mux Lds A Control bit A for ECG Lead Select Mux 5 Mux Lds B Control bit B for ECG Lead Select Mux 6 Mux Lds C Control bit C for ECG Lead Select Mux 7 Sw RLD RA Switch Reference Electrode to RA 8 Sw RLD LA Switch Reference Electrode to LA 9 Sw RLD LL Switch Reference Electrode to LL 10 Sw RLD RL Switch Reference Electrode to RL 11 MonBW Select 0 5Hz ECG high pass pole used to restore ECG baseline 12 MuxB 0 Select A D Mux B 1 Select A D Mux A 13 Sw RLD V Switch Reference Electrode to V 14 Sw RespReset Switch Respiration High Pass Pole used to restore baseline 15 SpO2Reset Reset Nellcor SpO2 board 16 Resp Off Turn respiration off when respiration not used shuts down drive signal Appendix A 10 14 99 iso 5Vdig NA NIDI IJ PJOIMI 1JOI Resp Off lt FE Serial Data SpO2 Reset Sw RespReset Sw RL V MuxB MonBW SW RLD RL SW RLD LL lt FE Data Clk PEN E lt ND Clk 2 4 Signal Isolation Optocouplers are used to electrically isolate signals The following signals are transmitted acro
117. ement and any drifts in the reference voltage or A D gain are compensated Appendix A 10 14 99 fVcc Temperature Amplifier R624 2 51 1K R626 f 1 24V gt gt gt Patient Temp C634 01uF Clamp N D602 R627 1 21K BAV99L 1 e C635 01uF J601 2 Temp In Temperature C636 SSES Thermistor 2200pF NE 2 Impedance Respiration 2 1 Overview Impedance respiration is accomplished by measuring a change of resistance across the patient s chest during breathing The RA and LA electrodes Lead I are uses to acquire the respiration signal A current source is driven through the patient and the voltage developed across the patient is measured The change in resistance caused by respiration is small in the order of 1 Ohm This small change must be measured on top of a large baseline impedance typically 100 to 1000 Ohms 2 7 2 Signal Source Current Drive An AC current source is used as the input signal a 34 8KHz square wave The Power supply sync signal at 76 8KHz is transmitted across opto isolator U710 Flip Flop U701 configured as a divide by 2 converts this signal to a 34 8KHz Current through the patient is about 150uA Pk Pk set by the output of U710 5V and the circuit series impedance 69K including cable resistance The impedance of the patient is small lt 2K compared to the series impedance and has minimal affect on the magnitude of the drive current Diode clamps are used to protect the respiration circuits
118. ep through list 31 Press lt PRINT gt if printer fitted 32 Press TREND to return to idle screen 33 Press lt DATE TIME gt 34 Get date time menu 35 Verify date time set if necessary 35 1 Bad date may indicate battery problem If date was bad turn off unit pull power cable wait 5 minutes reconnect power cable turn on unit Check date again 35 1 1 If date comes back bad Replace main board Model 200 Model 210 220 If battery not dead replace main board Press Date Time to return to waveform screen if needed 36 Press lt DATE TIME gt lt LEAD SELECT gt 37 Get Service Mode menu 38 Examine version configuration data in lower half of menu and write it all down 39 Press lt SELECT gt to highlight Reset to factory de faults 40 Press BP START CANCEL gt to reset configuration 41 Press TREND to return to idle screen 42 Press lt DATE TIME gt lt TREND gt 43 Get Advanced Configuration menu 44 Set language to your native tongue if necessary 44 1 We have just reset to factory defaults Compare settings to factory defaults appropri ate for the country in Operator manual If not matching indicates memory problems Changing only the language should not change any of the other factory default settings 45 Press lt DATE TIME gt lt LEAD SELECT SERVICE MANUAL 6200 43E REV A Section 3 Iroubleshooting 3 1_ Functional Test and Initial Diagnostic 46 Get Service Mode menu 47 Press
119. etra readout Do this at 50 00mm and 250 mm Hg 2 3 2 ET CO Calibration 623 Models only Need Tank of approximately 10 CO balance N certified Blood Gas Mixture Tubing and T connectors Watertrap and scrubber 2 3 2 1 Insert water trap Power up 2 3 2 2 Place the instrument into Service Mode Press Date Time Lead Select button 2 3 2 3 Select Calibrate CO Message Remove CO water trap will appear SERVICE MANUAL 6200 43E REV A 2 3 Calibration 2 3 1 BP Calibration Caution Improper use stor age handling of compressed gas vessels can cause injury or death Follow gas manu facturers safety processes 500cc volume Figure 2 3 1 1 Access and set up HyperTerminal 1 Start 2 Settings 3 Control Panel 4 Add Remove Programs 5 Windows Setup 6 Communications 7 selectHyperTerminal 8 APPLY Settings are 9600 Baud 8 bit word 1 stop bit no parity no flow control ANSI character set Find HyperTerminal in Programs Accessories 2 3 2 ET CO Calibration NOTE Replace water trap every 6 hrs of use Treat water trap and used NasalCO2 Sample lines as bio hazard material NOTE The Scrubber looks similar to a watertrap but is filled with white granules It is included with model 623XX WELCH ALLYN ATLAS MONITOR 7 Section 2 Service Note Adjust regulator to approximately 2 PSI watertrap Figure 2 3 2 11 NOTE Replace water trap every 6 hrs of use Treat water trap and used NasalCO2
120. eumatic system has been pressurized less than 15 mmHg for more than 25 0 seconds but less than 35 0 seconds before alowing new inflation cycle in non Stat Auto Mode 2 2 7 RS232 Test RS232 Test The RS232 communication operation will be confirmed with successful serial transmit and receive 2 2 8 Printer Option Test Printer Option Test The printer must be able to print out the test pattern Inspect print quality SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 3 Section 2 Service ECG Test NOTE Section 3 of this Service Manual contains troubleshooting steps for the ECG subsystem These tests will help determine if the main board is faulty SpO Test NOTE There is no calibration for the SpO and Pulse subsystem If the performance does not match up to that expected using a calibrated simulator or the Phantom finger set then the subsystem board must be replaced Temperature Test 4 WELCH ALLYN ATLAS MONITOR 2 2 9 ECG Test Use a calibrated simulator to check performance NOTE There is no calibration for the ECG or impedance Respiration subsystems If the performance does not match up to that expected using a calibrated simulator then there could be a problem with the cable leads connectors wiring or the main board itself If the main board is faulty then replace it 2 2 10SpO Tests Need Appropriate Phantom finger set SpO cuff and cable Or Nellcor or Nonin as fitted simul
121. for current limiting The neon bulbs act as a voltage clamp limiting voltage to about 100V Neons are chosen for their low capacitance and high DC isolation Series resistors and diode clamps are used as a second set of protection for the front end amplifiers Resistors R506 R507 and Diodes D506 D507 are used to reverse bias the lead clamp diodes D501 to D505 Two passive RC filters are used to reduce susceptibility to RFI and ESU Appendix A 10 14 99 Defib Protect RFI Filtering gt gt To Buffer Amp 2 5 3 Front End Buffer 1st Gain Stage Gain of the first stage 1s 9 26 1 10K 1 21K Bias current for each input buffer is set to 1 25V 44Meg 28nA VldsOff 1 25V On a leads off condition the two 22Meg resistor drives the input of the buffer to 1 25V VIdsOff and the amplifier output saturates high at about 5 5V The voltage out of each buffer is monitored to detect a leads off condition Input Butters Gain 9 26 DN VLdsOff 0 196 2 5 4 Wilson Network Lead Select Mux A 5 wire front end must be able to render the following vectors I LA RA II LL RA III LL LA aVR RA 1 2 LA LL aVL LA 1 2 RA LL aVF LL 1 2 LA RA V V 1 3 RA LA LL A resistor divider network Wilson Network is used to create the terms above These vectors are then switched though the two Mux s into the differential amplifier Appendix A 10 14 99 Lead Select fVcc Wilson o 2 Network im RA HA
122. g Replace CPU board 3 4 Diagnostic Tests Printer Settings 2 Date 1 NVRAM 1 NVRAM 2 NVRAM 2 SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 23 Section 3 Troubleshooting 3 4 Diagnostic Tests Battery 1 Sound 1 24 WELCH ALLYN ATLAS MONITOR system must have been plugged in for 24 hours for a real battery test to guarantee that battery is fully charged Press lt BP Start Cancel gt to starta BP measurement press BP Start Cancel gt again after three seconds to abort the measurement this puts an entry into the Trend list Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu Press lt SELECT gt to highlight Battery test The menu reports Battery Low Time XXX and Battery Dead Time Y YY These are the results from the last battery test The Battery Low Time is the time in hours and minutes that the battery ran in the last test until the Low Battery alarm started and the Battery Dead Time is the time from the beginning of the Low Battery Alarm until the system turned itself off when the battery voltage reached the cutoff level Write down the Battery Low Time and Battery Dead Time Note that the value 2 08 Is the default 128 minutes and indicates that no test has been run before Unplug AC cord to start battery test The timers will begin Leave the system until it powers down One minute before power down the system should print a Trend printout if equipped with printer If Trend printo
123. gain Should hear Technical alarm sound see error message LED unlit in lt BP ALARMS Off button If alarm not heard If error message not displayed If LED not unlit Replace Display Board hardware Turn system off and back on to clear state Battery tone System must have been plugged into AC for at least 2 hours Disconnect AC power on running system Connect BP hose to simulator Press lt AUTO gt to select 1 minute intervals Wait for battery to run down With fully charged battery after no less than 50 minutes should hear single tone get mes sage that system will shut down in 10 minutes If alarm tone not heard If message not shown Should hear tone again in two minutes and again two minutes after that If alarm tone not heard at two minute intervals Five minutes after first message should start hearing tone every minute and get message that 5 minutes remain until shutdown If alarm tone not heard at one minute intervals If message not shown SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting Ten minutes after first message should hear technical 3 4 Diagnostic Tests alarm see a printout of Trend data if there is any unprinted trend data accumulated which there is we have been running BP measurements and error message that system shutdown is imminent If alarm not heard If message not shown If Trend not printed Plug system back into AC Connect the BP port to the BP simulator Set the
124. gt TP319 R316 e gt VBackup 100 d304 2 C322 BackupBattery gt 047uF D D305 gt gt 412V NO LOAD C306 C307 330uF 047uF J I A C328 1 c TP301 Q302 R302 Q MMBT3904L C328 100K TP321 tuF Q305 MTP23P06V 6V 6V Buck 2 5 68V nominal C326 C321 047uF D303 C314 047uF 330uF C327 Q305 g MBRS340 047uF R313 I 10 U302 U301 fb Q304 LM2940CT 5 0 MMBT3904L Q304 e TP303 A IN OUT gt gt 5V R305 a 100K R306 Z i C316 C317 10K D301 O 10uF 047uF BAV99L TP304 Q C311 1 C815 D D TP305 1uF TP306 C311 Y Q 2200pF U301 comp g Q303 U303 Q306 MMBT3904L LF33CV 2N7002 a C309 R307 5 IN OUT gt gt 3 3V 047uF 7 5K oc Q ISENSE Z C819 C320 Ge i 100uF 047uF C310 2200pF 2S0 L0ef TP310 O O TP309 R309 10K TP312 Drawn Rick Myees Mai 5 1999 Schematic 620002 dsn S SS Designed gt gt ACON me p S Iv DC DC S Approved 3 16 99 Size Document Number Rev ESE 6 620002 D elease ror rroauction pues J Bello 3 1799 Date Friday July 09 1999 Sheet 3 o 6 L201 TP201 Se IOP UU loss Z TP202 R207 A Release to Production 5 39118 JAC 3 15 99 LPP 12V gt 2 P 12V e 464K 5V C229 m See ECN worksheet 5 39456 LPP 4 27 99 LPP 10uF R208 C Improvements for ESD 5 39822 LPP 6 23 09 LPP 7 P 5V 1 96K
125. he transistor opens the drain voltage kicks up and the current through the Transformer coil flows through C9 L2 L3 and the Horizontal Coil to Ground The transformer quickly loses flux reset time lt 5uSec Current continues to flow in load inductance from Ground through Q6 diode C9 L2 L3 and the Horizontal Coil to Ground This current flow charges capacitor C9 The current decreases linearly to 0 then changes directions This is due to the AC coupling capacitor C9 being charged to a negative voltage Current flow is then from Ground through the Horizontal Coil L2 L3 C9 and Q6 to Ground The drive to MOSFET Q6 is AC coupled This will prevent Q6 to be driven high in the event of a faulty driver on the CPU board In order to get adequate deflection current about 2 3Amps 18 5V across the transformer coil is necessary A boost winding is added to the transformer then when the voltage on the transistor drain flys up current flows into capacitor C11 C11 charges to a voltage determined by the turns ratio in the transformer Appendix A 10 14 99 5 3 1 Horizontal Gain Horizontal deflection is adjusted by changing the current through the Horizontal coil Changing the series inductance in the Horizontal Deflection Path modifies the current Increasing Horizontal gain 1s then accomplished by writing a pattern to the CRT and adjusting the width coil L3 Horizontal Centering Horizontal centering is accomplished by r
126. he PC 2 3 6 6 At the Pangea prompt type Pangea gt temp cal xxxxxx lt ENTER gt where the xxxxxx is the value of the precision resistor in centiOhms Specify the Ohms tenths and hundredths of Ohms with no decimal point for example a 1200 00 Ohm resistor would be Pangea gt temp cal 120000 lt ENTER gt 2 3 6 7 Wait four seconds then type Pangea gt temp state lt ENTER gt 2 3 6 8 Displayed resistance will be within 0 5 Ohms of the value that you entered The Offset should not exceed 5 0 Ohms NOTE The system will silently fail without error if it is unable to calibrate properly Therefore you must manually verify that this resistance is correct 2 3 6 9 Turn the Atlas OFF 2 3 6 10Unplug the resistor plug assembly 2 3 6 11 Remove the serial cable 2 3 6 12Check the accuracy of the temperature sensing system using the process described in Section 2 2 11 SERVICE MANUAL 6200 43E REV A Section 2 Service 2 3 Set battery charging voltage 2 3 7 Set Battery Charge Specification No Load 6 85VDC Voltage Need DVMM 2 3 1 Remove battery from unit and unplug 2 3 2Use DVMM to check across right pin and left pin when viewed looking into the battery compartment 2 3 7 3 Adjust potentiometer R338 to obtain 6 85VDC It is located at the right of the battery jack Turn it counterclockwise to increase the charging voltage SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 13 Software Chart 2 4 1 Secti
127. icnik Size Document Number Rev Release For Production Pe J Bello 3 24 99 Gate Friday July 23 1999 Sheet 3 LED NIBP Data In ___ gt LED NIBP Latch gt LED NIBP Clock gt LED NIBP Enable D Silence LED C LED NIBP Data Out lt u19 out Release to Production 5 39251 3 23 99 D13 to Low Profile R51 to 316 5 39994 7 23 99 a VCC TP89 VCC VCC Systolic Tens TP93 R40 Systolic Ones SER d42 q s men Systolic Hundreds U22 15 5 085 5 u22 7 i LAN PAN AW EX WA 2 MNA R43 680 74HC595A 74HC595A 74HC595A 7 SEG LED 0 5 7 SEG LED 0 5 7 SEG LED 0 5 BP Alarm On Off D15 BP Sys Hx D6 KW T1 75 5mm Green BP Sys Lo D8 SR T1 75 Smm Green VCC Q2 TP110 O TP111 T1 8mm Red u20 out u21 out Diastolic Ones Diastolic Hundreds TP116 R45 Diastolic Tens D44 d d d44 q d MEE ES J44 d d44 c d p 4 d44 b Q 74HC595A 74HC595A 7 SEG LED 0 5 KW T1 75 5mm Green lt gt TP136 u24 out 107 OG 74HC595A 7 SEG LED 0 5 BP Dia Lo VCC KW gt TP137 T1 75 5mm Green e TP132 7 SEG LED 0 5 VCC u23 out cs RE EE O TP142 O u25 out R59 1 21K c 5 TP179 E Y 5 u13 out x CG VCC 74HC595A EE UE Bes Weih dota
128. imary Transducer 17 Print Temp Printhead Temperature used to compensate printer strobe width 18 BattVoltage Battery Voltage used to warn of low battery condition 19 BattCurrent Battery Charger Current used only in service mode verification 4 NIBP Circuits 4 1 Overview Safety Two pressure transducers are used a primary and safety transducer The primary is used to make all BP measurements Hardware circuits monitor the output of the primary transducer looking for overpressure faults In addition Software monitors the digitized outputs of the primary transducer and detects overpressure faults The following overpressure faults are detected In software monitored once per second Appendix A 10 14 99 1 gt l10mmHg pressure for 295 seconds 2 gt l5mmHg pressure for 175 seconds 3 295mmHg pressure for 0 5 seconds Software detected overpressure faults are considered application faults The user is warned of a fault with an audible alarm and a Check blood pressure cuff message on the CRT display NIBP is not disabled for this type of fault In the event of a fault the drive signals to the NIBP pump and valve are opened Two hardware faults are detected pressure over 330mmHg nominal trip point 314mmHg and pressure over 15mmHg for three minutes 13 3mmHg nominal trip point These faults are considered more serious since software should have detected and corrected this condition The user is notified with a BP
129. in the event of a Defibrillation pulse f 5V Y Clamp Clamp A V nacio Drive Circuit 0719 T 4 7uF E C701 U701A 1000pF On 14 74HC74 Resp Y D701 MMBD1503A 2 as D701 3 MMBD1503A C702 1000pF Left Arm gt Appendix A 10 14 99 2 3 Differential Amplifier and Peak Detector The AC current driven though the patient develops a voltage across the RA to LA electrodes This signal is measured and amplified with the Differential Amplifier formed by U702A B This amplifier converts the differential voltage across the patient to single ended signal with a gain of 16 8 Inverting this signal U703A and summing the original signal and inverted signal through the dual Diode D705 then forms a synchronous peak detector Then the voltage on C711 is the DC resistance seen across the RA to LA buffer This baseline resistance 1s digitized and if the signal is too large gt 2 5K a Respiration Lead Fault message 1s displayed Note that this circuit measurement includes the two IK resistors in the EKG cable set This 2K resistance is subtracted in software before determining a leads off condition Clamp Clamp Y Y D703 R724 MMBD1503A fVcc Respiration 196K 2 Diff Amp DX Resp DC R707 C706 C720 1 96K 330pF 047uF Right Arm gt D703 3 U702 3 3 nda 2 MMBD354LT1 E U702A R709 AD712 R711 464K 15 8K gt gt D605 C Dee U702 2 F R717 R712 3 16K C711 D704 1K 3 0 1uF MMBD1503A
130. int Temp Rec Strobe Rec Clock l Rec Data Et C14 C20 047uF 047uF CON24B A D D Rec GND Recorder Board Connector TP22 Q TP23 C36 4 7uF R17 1 R18 619 Speaker Drive R17 19 6K U3D 74HCT08 Audio Shutdown TP24 TP25 Q Q U9 4 ACON gt C35 5V 4 7uF A 4Vpp max m an 2 g SM 3 U9 CON3 TPA301 C38 220pF Checked LPhilips H3 10K C4 330uF 13 Q 4 6 filt Y Q1 Q MMBT3906L R1 10K 2 Q1 e ST P19 3 3V R2 1 96K Q2 c TP20 TP21 Y R21 gt Q2 10K Q2 b MMBT3904L R4 gt gt ac on 10K Pagel Q3 2N7002 Welch Allyn Inc Schematic 620002 dsn Main Board Model 200 Size Document Number Rev C 620002 D Date Friday July 09 1999 Sheet 1 of 6 CH ES D lt PIC Vprog Release to Production 5 39118 JAC 3 15 99 LPP Cepu m See ECN worksheet 5 39456 LPP 4 27 99 LPP lt Rec Clock SEA 5 39822 LPP 6 23 99 LPP and Fast Transients gt gt filt 12V Mods to U2 clock line gt gt Vb ClkIn Osc1 RB5 Clkout Osc2 RB4 page Vpp MCLR RB3 lt PIC Clk TC5 TOCK1 O PIC audio RC4 R320 1 62K RC3 lt Speaker Audio O D620361 MX10000 TP320 R319 19 6K up reset S HRESET On Off Switch Y TP316 TP317 Q301 Y gt gt U2 Reset T MTP23P06V 47uH AC 12V gt 4 TP318 3 R303 R314 Q D304 3 C302 C303 C304 C305 10K 100 MMBD354LT1 C301 tuF 01uF d304 1 1000uF
131. intout of Trend data if there is any unprinted trend data accumulated which there is we have been running BP measurements and error message that system shutdown is imminent All the possible error messages are documented in an SELF DIAGNOSTIC appendix to the Operator s Manual ERROR MESSAGES SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 11 Section 3 Troubleshooting 3 2 Chief Complaint Cause and Corrective Action m Will not power up in AC No wall power Wrong wall power voltage frequency Fuse in power supply Fuse in neutral wire Power supply failure Random LSD segments unlit Failed LED LED 1 Subsystem LEDs unlit Subsystem problem Check subsystem LED 1 LED intermittent dim flickering Failed LED Replace Display board Button not functional Failed switch Button 1 Failed subsystem Check subsystem Button sticking under front bezel Possible loose display board Tight display board mounting screws Button intermittent or difficult to Failed switch Button 1 make contact No sound at all Failed speaker or disconnected Reload software Failed main board sound 1 Software corruption Insufficient life Failing battery Battery 1 TOS TE ERE Paper inserted incorrectly Printer 1 Door not latched Failed printer Software adjustment needed Printer 1 Software adjustment needed Printer 1 Failed printer Printer 1 Printer cable Paper inserted backwards Printer 1 Wrong kind of paper Feed problems
132. lay manom eter value in SYSTOLIC LED this value should track and be very close to pressure SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 3 Section 3 Troubleshooting 3 1 Functional Test and Initial Diagnostic 4 WELCHALLYNATLAS MONITOR displayed by manometer in BP simulator if fitted Largest number shown in SYSTOLIC should be very close to the Initial pressure setting recorded above trom Advanced Configuration 67 2 system should step down pressure showing step values in SYSTOLIC LED and then dis play correct SYSTOLIC and DIASTOLIC values System may show MAP value de pending upon country 68 Press lt DATE TIME gt lt TREND gt to get to Advanced Configuration menu 69 Press lt Select gt to highlight Initial pressure 70 Press lt Set gt to change Initial pressure to 280 mmHg 71 Press lt Select gt to highlight MAP 72 Press lt Set gt to change MAP to Yes 73 Press lt I REND gt to return to idle screen 74 Press BP START CANCEL gt 75 System should start pump display manometer value in SYSTOLIC LED this value should track and be very close to pressure displayed by manometer in BP simulator if fitted Largest number shown in SYS TOLIC should be very close to the Initial pressure setting of 280 mmHg 75 1 If pressure shown exceeds 300 mmHg Recalibrate BP 76 System should step down pressure showing step values in SYSTOLIC LED and then display correct SYSTOLIC and DIASTO
133. lope compensation is added by summing in part of the oscillator signal with the current sense line The PWM current limits on a cycle to cycle basis The supply will be in current limit when the Isense line reaches 1V Current limit is set to about 3 5 Amps from 12VDC or 5Amps from battery Two control signals exist for the 24V switcher n24Von and Rec Supply On The 24V switcher is disabled when n24 Von is high This signal is controlled by the on board PIC processor The switcher is held off at power up and allowed to start after 50mSec This is done to reduce inrush current at power up The signal Rec Supply On enables power to the print head and is controlled by the main CPU Power is only applied to the print head when the recorder is running Recorder Power Supply D2 Q1 MBRS340T3 MTP30P06V 3 gt gt 24V switch 5V TP8 Q TP17 R6 O 10K c11 n24vOn 1 047uF 4 Q 2N7002 Switcher A Disable A C14 d 2 2200pF ec Supply On Q2 b 1 Q2 S 2 MMBT3904L A Q6 O TP23 R19 R10 MMBT3904L 3 16K 10K Va NA To C8 R16 i 1800uF R3 19 6K Printhead 10K A Printhead N A R22 4 22K RecVdc gt R11 5 11K 6 3 Motor Driver Atlas uses a stepper motor to drive the paper The microcontroller U3 is programmed to apply the appropriate phased signal to the motor A quad darlington switch U6 amplifies the signal from the controller to signal levels needed to drive the motor Motor speed timing is derived from
134. lt lt v O Gor Oy n m SID zOruzaaaaaaaa PC7 USBTXP lt PC7 KAPWR VDDSYN 247 NCS Gu 5 5 O go sassoszzor AA GE PC6 USBTXN lt PC6 gt z uz e ASSO S3300 Dec G S O DND tO O F cO LO cO 009 Qi c x tO cO 009 O SoS i N lu lu 23 5 a 7AE De e 22 Too cde PC5 L1TSYNCA SDACK1_n 4 lt PC4 lt PC5 N KEE Q A GN GQ QI C co CO C C C C Co C C E nnnzZz uooo zz O00 gt p OTNQ NWMOM OZZzZzaga PC4 L1RSYNCA ZN DAONDAADDAADADDAAAADADAAAAA onoo AQDAADAAAAAAAAAAAA Anan MEWW ZFOYEXxX eu On mmmmMmM an vSSStInocwnrtrHaaro Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z OOOO ZZZZZZZZZZZZZZZZ NNA lt QO o mr gt LL X LU OZ OO jA A n n dodo a0tlnoaaaaaaano ooomooobo0o000000000 2222 QO0O000004004Q0 400040000 Sow LETQ c udxoOluB ere OO OIL gt 0L gt gt gt gt gt gt gt gt gt O O OU A Adds 329494294 ddadda g9 xus mda VIDEO 0 7 Wal gt O lt Field lt O lt Blank m 9 lt VSYNC PORESET_n gt RSTCONF_n gt KHSVNC HRESET_n gt SRESET_n gt lt Video Clock 3 XTAL gt EXTAL gt X MODCK1 XFC gt CLKOUT 3 X MODCK2 EXTCLK 3 5 TEXP DSCK gt DSDI gt TMS gt IP B 2 7 DSDO VFLSO gt u VFLS1 TRST n gt WAIT B n A Drawn Designed Checked Approved Jim Belesiu Mar 5 1999 L Phillips 3 19 99 Title Size C Release For Production Welch Allyn Inc Schematic 620005 dsn PowerPC MPC823 CPU Docume
135. mit 9 1 5 Amp TP332 3 d C316 D308 BAV99L S 2 2200pF TP336 R333 TP337 gy TP335 Q 19 6K U304 3 U304A R322 MC34072 C322 3 ACON 10K cO 047uF E IN gt Ref Batcharge AC 12V fuse Batt fb STP341 TP342 R339 C321 R334 lt gt 19 6K 01uF 19 6K Q309 R339 V Ref Baicharge MMBT3906L O S T P345 R335 TP346 Km 4 32K R340 H TP344 10K G U304 6 TP352 U304 7 Q U304 Q309 3 U304B R336 TP348 RT301 MC34072 7 5K Ko co R337 Float Voltage 8 87K R344 NR w 10K AC 12V fuse Bat Adj ACON gt R338 1K 12V Boost IX nominal Q303 s L303 Bead 28 eo dr L302 1 See ECN worksheet Improvements for ESD RFI and Fast Transients Correct Respiration Diff Amp Topology Mods to U2 clock line Resp gain amp ECG supply and NVRAM pullup U302 pwr C306 C310 L302 tuF 1000uF 22uH TP305 R310 D304 4 64K 10K MBRS340T3 L305 Bead C305 1 D304 C U302 gt gt 12V C305 UC3843A 5600pF C311 C312 C313 1000uF 1000uF C336 330uF 2 O D TP306 A U302 comp ki SCH 2 Q305 047uF eo h MTP30N06VL gt a To 2 yTP308 R311 U302 ct Ke 302 sense 10K ISENSE D Y R315 S G O C308 2200pF TP311 Q304 MMBT3904L R316 0 1 D312 BAV99L R317 7 5K gt AC 12V fuse gt T SU A TP316 3 D310 gt gt Vpump MBRS340T3 HS302 Heatsink Q312 forQ312 MTP30NO6VL L gt gt 5V l C323 C325 Q311 100uF Q312 9 100uF MTP30N06VL R346 U306 100 R348 10K
136. n all values for later review Need to provide tables of reasonable values trouble shooting pointers Press lt Set gt and write down all values for each screen If data missing corrupt or questionable goto NVRAM 1 or Replace Display Board Press Trend to return to Idle screen LED 1 Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu Press lt Select gt to highlight LED test Press lt AUTO gt to turn on all LEDs Press lt BP START CANCEL gt to show automatic test pattern Watch for a while look for glitches in pattern Press lt Set gt to go to manual mode and step through individual segments if needed to observe a problem If any failed LEDs multiple segments lighting at once or other problems Replace Display Board Press Trend to return to Idle screen Printer 1 Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu Press lt Select gt to highlight Printer test pattern if fitted Press BP START CANCEL to start test pattern Printer should print test pattern Press any key to end printing Examine printout If too dark too light Goto Printer Settings 1 and Printer Settings 2 If alignment errors Adjust printer mechanism If feeding problems Adjust printer mechanism replace feed roller If missing sections rows of printout Replace Printer Hardware If darkness not consistent across page Replace Printer Hardware SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 21 Section 3 Trouble
137. n error or transducer mismatch Once a fault is detected Q202 will remain open until power is cycled Under normal operation dual transistor Q203 is used to switch the pump on and close the valve The pump on and valve close commands are controlled by software Note that the valve is normally open Then in the case of no power the valve will be in the open state 5V Wie mp Y 12V BEE R242 10K Agr t Q202 G R240 3 NIBP Safety gt eee 1 2 eo Valve Valve Q201 R241 MMBT3904L 10K Pump D sess ON5 m Q203 MMDF2N02E NIBP Valve Close gt 2 4 KNIBP Pump On y e R247 R248 1K 1K 5 CRT Deflection Board 5 1 Overview Atlas uses a 5 inch monochrome CRT display This CRT will display Waveform Data ECG and Respiration or SpO2 orETCO plus Text Data Heart Rate Alarm Values Trend Data setup and service menus The CRT Deflection board performs the following functions 1 Vertical Deflection 2 Horizontal Deflection 3 CRT Grid Voltages 4 Video Amplifier CRT Deflection is magnetic vertical and horizontal deflection 1s controlled by regulating current through the vertical and horizontal coils of the CRT Yoke The Deflection board is designed to the following specifications Resolution VGA 640X480 Dot Clock 39 7nSec 1 25 175Mhz Display Size 100mm Horizontal X 68mm Vertical Vertical Scan Rate 60Hz Reset Time 750uSec Appendix A 10 14 99 Blanking Time 1 2mSec Horizo
138. ncludes amplifiers and processing and transmits serial data to the CPU board Waveform data SpO2 and pulse rate The Atlas monitor provides electrical isolation power and data for the SpO2 board Note that you must use Nonin probes with the Nonin SpO2 board and Nellcor probes with Nellcor SpO2 board 3 Non lsolated circuits A D and Mux 3 1 A D grounded circuits The A D converter is designed by building a pulse width modulator PWM and a timer circuit The PWM runs at a 1 2KHz rate synchronized by the A D sync signal NIBP ADC Clock A D sync is low for 52 uSec high for 781 25uSec Component values are selected such that the integrator will ramp down 4 7V and ramp up 7 83V The voltage at the integrator output U601 1 is limited to about 5V 5V 73 2 83 2 Vdiode Then the integrator starts at 5V and ramps linearly down to 0 3V The analog input voltage to be digitized and the integrator output are the inputs to comparator U210 The output of the comparator is low at the start of an A D cycle and switches high as the integrator ramp drops below the input voltage being digitized see the timing diagram below A D conversion is accomplished by measuring the width of the PWM output signal The A D timer runs at 25 175MHz then the A D resolution is about 21000 counts over 14 bits Note that since the output of the comparator is low at the start of the A D cycle a resistor divider is formed at the comparator input This divide
139. nlit in lt CO RESP ALARMS Off gt button 183 Turn system off and back on lt BP ALARMS Off gt button 184 With no hose connected to BP port press lt BP START CANCEL gt button 185 Place finger over BP port blocking flow causing BP to detect overpressure and abort 186 Should hear Technical alarm and see error mes sage Check blood pressure cuff 187 Press lt BP ALARMS Off gt button 188 Should stop Technical alarm sound and erase error message and light LED in lt BP ALARMS OFF gt button 189 Press lt BP ALARMS OFF gt button again 190 Should hear Technical alarm sound see error message LED unlit in lt BP ALARMS Off button 191 Turn system off and back on Battery tone 192 Disconnect AC power on running system 193 Connect BP hose to simulator 194 Press lt AUTO gt to select 1 minute intervals 195 Waitfor battery to run down With fully charged battery after no less than 50 minutes should hear single tone get message that system will shut down in 10 minutes 10 WELCH ALLYN ATLAS MONITOR SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting 3 1 Functional Test and Initial Diaqnostic 196 Should hear tone again in two minutes and again two minutes after that 197 Five minutes after first message should start hear ing tone every minute and get message that 5 minutes remain until shutdown 198 Ten minutes after first message should hear techni cal alarm see a pr
140. nt Number 620005 Thursday June 24 1999 Sheet 5 of Rev C Co N 3 3V_unfiltered gt Release to Production 5 39173 3 18 99 Component change for 5 39353 iis zm MPCO 23 ELL o component change tor Su 1 Change Reset IC U3 Pp Y C N ia d C40 5 39830 LPP 6 24 99 FM Section for spreading RF EE emissions R2 selects the to CPU PLL VDDSYN deviation 7 pin B1 L2 Ferrite 120 C2 H1 100nF 100 C18 R2 From FPGA C17 C117 C107 1K 100nF NL XFCX lt PA14 VSSSYN System Clock to CPU PLL pins Al and A2 Tu R50 200K VDDH Place decoupling capacitors next to CPU VDDSYN pin Bl and VSSSYN pin Al and A2 Ka KXTAL FP GA Clock 3 9M R51 Use separate PPL VDDSYN power plane from 3 3V plain lt EXTAL Split ground plane under these components 1536 830 lt XFC lt 1536 1470 pf Value selected for the final mulitplication ratio G1 S Video Clock 25 33 Load C107 w 1 5uF and unload C1 for non FM clocking 32768Hz H94 C108 C109 OE VDD X EXTCLK 22pF 22pF p H GND OUT R117 Place these components K as close to the SG 636PCE 25 175M 200 processor as possible VDDH RF Suppression L1 VDDH VDDL FLASH decoupling caps 244 3 Ferrite 120 to CPU U2 VDDH decoupling cap System 3 0V l PEE NEM MEE 3 3V_unfiltered gt Input Reset_n C110 C4 C5 C6 C7 C106 6 8uF 100nF 100nF C14 C115 330pF 6 8uF C12 C13 C114 6 8uF 330p C116 C16 DRAM decoupling ca
141. ntal Scan Rate 31 5Khz Reset Time 5uSec Blanking Time 5 7uSec 5 2 Vertical Amplifier 5 2 1 Ramp Generator Vertical Sync Ramp Generator 1K 45V U1 3 12V IK 150usec 16 7mSec Vsync gt U1A TLC272 R52 1 96K Vertical Pe F 5 0V 3 95Vpp D6 D1 k 750uSec 1N4148 1N4148 16 7mSec A ramp generator is built from the integrator UIA C1 and R3 The slope of the integrator is V I T C The integrator is designed so that it ramps up 6 97V in 750uS and ramps down 3 95V in 15 9mS Diode DI clips the output voltage at about 5 0V U l pin3 Vdiode Then the ramp resets at 5 0V each cycle and integrates down 3 95V 74HCT04 NN ci 1UF Vertical Amplifier C4 047uF R19 3 562 Q1 Q3 b 8 1 MPSWO1A MPSWO1A 1 R18 R20 Ramp gt 169 U2B Op 4 3 Q2 R16 10 Q4 MPSW51A MPSW51A Size Adjust R23 10K L Vertical Yoke U1B TLC272 R8 41 2K any Zero Adjust cadj R9 R11 45V a aor 1 47K R10 1K 1 96K NY Appendix A 10 14 99 5 2 2 Vertical Amplifier The Vertical amplifier will generate a linear current ramp of 200mA The vertical amplifier is an H Bridge type driver Positive current flow deflecting the beam above the centerline is defined as current from 12V to QI to Rsense through the coil to Q4 to Ground The negative current path is from 12V to Q3 through the Coil to Rsense to Q2 to Ground The input to the vertical amplifier is the ramp volt
142. nu Set Second trace selection to CO Press lt TREND gt to return to idle screen Insert CO2 watertrap with hose Breath into hose until waveform is displayed lf waveform not displayed after 30 seconds goto CO 1 Remove CO watertrap Should hear Technical alarm and see error message Press lt CO RESP ALARMS Off gt button Should stop Technical alarm sound and erase error mes sage and light LED in lt CO RESP ALARMS OFF gt button If alarm not silenced If error message not erased If LED not lit Replace Display Board hardware Press lt CO RESP ALARMS OFF gt button again Should hear Technical alarm sound see error message LED unlit in lt CO RESP ALARMS Off button Turn system off and back on to clear state lt BP ALARMS Off gt button SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 27 Section 3 Troubleshooting 3 4 Diagnostic Tests 28 WELCH ALLYN ATLAS MONITOR With no hose connected to BP port press lt BP START CANCEL gt button Place finger over BP port blocking flow causing BP to detect overpressure and abort Should hear Technical alarm and see error message If alarm not heard If error message not displayed Press BP ALARMS Off button Should stop Technical alarm sound and erase error mes sage and light LED in BP ALARMS OFF button If alarm not silenced If error message not erased If LED not lit Replace Display Board hardware Press BP ALARMS OFF gt button a
143. ods to U2 clock line Resp gain amp ECG supply and NVRAM pullup Isolation 047uF arrier Isolated SpO2 Se Grounded SpO2 CITCUTUS CLTCourts D401 MBRS130T3 C412 10uF f V T401 1 C409 470pf gt C405 R419 T401 12V C402 100uF 215 409 1 TP449 Y 047uF S ST P450 R405 215 R419 2 C414 U402 ref ST P491 C433 047uF 470pf o T401 8 ST P466 TP453 c U402 C420 O D405 047uF BAV99L VREF pu Du lt FE Pwr S MA E SZ Q401 E S 10 ME SHTDWN se id MTD3055V 6 U402 e META OSCOUT IT RT STP455 D403 CT A IsoXfmr S1 P456 R409 QST P497 LV T401 4 Q402 5 11K M MMBT3906L U402 sen SENSE O 3 C407 MBRS130T3 0 2 SENSE COMP C411 R410 C404 100uF 2200pF 7 5K 047uF S S llo all f V N R422 5V 10K NZ TP459 E U410 9 R403 4N25 U401 3 1K R411 U401 1 iso401 a a iso401 b 5 11K U401 2 R423 U401A lk opto fb 5 11K LM358 i NM TP462 R404 NS NS 196K R401 C408 R402 10K 01uf 10K s 5V gt C4Q8 2 O e R417 TP463 TP464 10K N 2 SpO2 ESD Ground A iso 5Vdig C413 047uF 5V NZ DWE Q403 MMBT3904L R414 1 96K R412 U411 196 HCNW4503 Q403 e iso402 a Q gt TP467 gt lt SpO20ut C436 1000pF DWE Checked 3 16 99 Approved Schematic 620017 dsn Title Power Isolation and SpO2 Interface Size Document Number Rev C 620017 E Tuesday Jul Date 13 1999 Sheet 4 of 8 Right Arm gt Left Arm gt U702 fVcc gt C715 047uF fVee gt C717
144. on supplying power to the PWM controller U301 3 The boost regulator develops 18 VDC which will switch transistor Q303 On On Off Switch A U 3 gt v Q303 MTP30N06VL gt gt VBackup Ri C832 T 4 7uF D LP2951CD 3 3 D On Off Circuit 18V Boost Mosfet Gate Voltage gt gt Viuse wir HS301 Heatsink L301 for D301 Q M O F303 R305 1 6078 Amp D302 BAV99L Q301 AC 12V gt 1 a MPSW51A 1 gt gt 18V 3 o Battery gt 3 n ISWE R306 17 R301 a SN 61 9K D301 C801 10K a cao l Uan 3 5 U301 comp MBR2535CTL 330uF Q301 b tuF TCAP COMP C304 Ee C303 R307 100uF R302 470pf 4 64K 1 96K Q302 c 7 R303 R304 51 1K 100K Q302 B_1 a302 2 MMBT3904L C339 T 1uF C42 l 047uF Vbackup gt R22 10K U10 He pg 1 3 PIC Data gt Es ClkIn Osc1 RB5 D On Off Key gt 3 Clkout Osc2 RB4 12 n Front Panel Key 4 Vpp MCLR RB3 X PIC CIk TCS TOCK1 10 Orvoft lt lt 6 nc4 2 gt gt PIC audio pg 3 U2 Reset lt lt RC3 O To U2 N D620361 MX10000 Appendix A 10 14 99 1 3 12V Boost Converter The 12V boost circuit provides regulated 12VDC The input to the 12V converter is either battery or 12V from the AC DC converter The circuit is configured as a boost PWM using current mode feedback The PWM controller is a UC3843A The controller includes an internal 2 5V 2 reference and an external 5V 2 reference Nominal output voltage for the boost converter is Vout
145. on 2 Service C2 N A X A1 Software Updgrade A2 Main board failed A3 CPU board failed A4 Both CPU and main board failed Condition B1 Unit has no problems B2 Just replacing Main board The original CPU board is OK B3 Just replacing CPU board The original Main board is OK B4 Replacing both the CPU and Main boards C1 Use the new download utility atlas dl exe C2 Replace Main board initialize nvram and recalibrate C3 Replace CPU board and load operating system C4 Replace both boards use atlas di exe reconfigure calibrate D1 HyperTerminal not required D2 Need HyperTerminal for setting nvram and calibration Initialize NVRAM using hyperterminal Advanced Configuration user set preferences using front panel controls E1 YES atlas dl exe loads nvram_common txt file which overwrites all previous settings with defaults After repair please check all user preference settings Advanced Configuration Menu and ALARM settings and set them the way the unit was received E2 Yes Same as above Need atlas dl exe file Yes Same as above D4 Need HyperTerminal for setting nvram and calibration E4 Yes Same as above Download operating system using windows G1 YES software information resides in CPU G2 NO operating system resides in CPU which was untouched G3 YES
146. or Production Document Number 620005 Thursday June 24 1999 Rev C Sheet 2 of 6 Main PCA Connectors GND U e ae 2 ad x Se EE BE 3 3V_unfiltered GND SC T exe U e 2 NIBP Overpressure 2 GND a e U e DCS o 7 518 gt ETCO2 Rx F 2 2 PIE NR 22 A ead U U U 2d S24 a S C C R 28 2 Su Mee E D28 iud c d 530 2 re e ME O E i 534 i U U U U U78382 c 82 ais EE 938 Kar D40 2 EE 42 A AC On O Ee Rec Paper Out GND ABS Ge EAN O es EE SL EE 952 j ae A a 954 2 Er EE 958 SA 958 SPI data in END EEN G t GND HEADER 30x2 KEKG PWM ADC X NIBP PWM ADC RS423 Tx Spare 1 RS423 Rx SpO2 Tx SpO2 Rx ADC Clock FE Clock SPl data out SPl clock Batt ID FE Data Recorder Motor Step On Standbv Kev Speaker Audio Main Supplv On NIBP2 PW ADC Video Data Nurse Call Recorder Data Latch Recorder Strobe SCL SCD d CPU PCA SW Debug Port aka BDM Connector Ke VFLS0 gt d 2 D lt SRESET_n Da A D DSCK i GND A 5 ep VFLS1 HRESET n SE 8 p KDSDI A 9 10 p lt DSDO HEADER 5X2 1 Visual History Buffer Flush Status 823 output 2 Reset Output 823 input 3 Ground 4 BDM Clock 823 input 5 Ground 6 Visual History Buffer Flush Status 823 output 7 Reset Input 823 Output 8 BDM Data Input 823 Input O VES 10 BDM Data Output 823 Output Test Points rau tO TP58 tany tO Po Burst_n gt
147. otating magnets mounted on the CRT Yoke assembly 5 3 2 Grid Voltages The following voltages are developed to bias the grids on the CRT Grid 1 10V to 50V DC Brightness Adjust Grid 2 350VDC Grid 4 OV to 350VDC Focus Adjust Anode 7 5KV These voltages are derived from additional windings on the FBT In addition the supply voltage for the video amplifier 36VDC is generated from a tap on the FBT DH 320 o Horizontal Amplifier Grid Voltages Boost c11 l 1000uF d 9 12V 8 D3 Bs L 1N4935 Vid Gridi Intensity BER 1 2 B 10 2 vd 1 2 47uH C15 MUR120 C12 01uF C10 Hor 7 5 22uF R29 100K 1000uF D4 R28 N 1N4935 Brightness 19 6K 3 Vgl 2 1 d4 a Adjust 1 Vg2 NY C13 R30 Horizontal Sync 22uF 100K lt Grid 2 D5 1N4937 C16 01uF 1 2 d5 c R32 A djust 2 5Meg lt Focus C9 C17 k 5 susec C14 31 7uSe l Bh Focus 6 8uF 01uF fu hlin hwide gt Q6 C8 L2 L3 NY IRF640 022uF 15uH 15 35uH 4 lt Q5 E 12N3904 Horizontal Yoke 4 lt Appendix A 10 14 99 5 4 Video Amplifier The CRT tube turns a dot on when video out is low near OV and off when video out is high Vvid 28V The input to the video amplifier is a digital signal 3 3V logic level from the uProcessor An input of OV turns the dot off an input of 3 3V turns the dot on Transistor Q7 amplifies and inverts this signal Video out is driven low through D7 and driven high through emitter follower
148. ound Continuity Test Ground Continuity Test Printer Models Only Press Earth Resistance key 4 Toggle Test Current key 5 until Test Current is 1A if necessary Plug red test lead from Front Panel red jack to green jack Press Cal to calibrate test lead After calibration complete remove red lead from green jack and place red clip on red lead tip Attach red lead from 601 Pro to printer motor case Press Earth Resistance 4 Record Earth Resistance result pass fail on Atlas Monitor Test Result form If failure then place unit on Debug shelf 9 Press ESC key 10 Remove red lead from jack and printer motor 11 Disconnect AC cord from Atlas and continue to Dielectric Test CONN A d UN Leakage Test Procedure after First Run of Day Verify Output Voltage and Frequency of EW371 Power Supply 240VAC 50 Hz Plug power cord from Biotek 601Pro into Atlas Monitor Verify ECG Lead Connection to Biotek 601 Pro Connect ECG plug from Biotek to Atlas Monitor Select Patient Leakage 7 to provide AC power to Biotek AC socket Turn on Atlas Monitor Press Mains on Applied Part 8 Oy ee Me 8 Record All Earth Norm and All Earth Rev result pass fail on Atlas Monitor Test Result form If failure then place unit on Debug shelf 9 Press Patient Leakage uA 7 10 Record Patient Leakage result pass fail on Atlas Monitor Test Result form If failure then place unit on Debug shelf 11 Turn off Atlas
149. out Osc2 RB4 p I ia I ron ane e d ER eeneg RGIEL IL A llo one ae Rec DCV gt TP24 e 5 1 Drawn Schematic 620017 dsn 2 CF C8 Rick Myers Mar 5 1 On Off lt lt 2 RC4 pg 3 330uF 047uF U2 Reset lt lt RC3 gt gt HRESET To U2 To Processor D620361 MX10000 TP16 Rec GND gt L999 OO E rar s 1999 frie C38 Checked 220pF Approved L Phillips 3 16 99 Release For Production Main Board Model 220 Document Number Rev 620017 E of 8 Tuesday July 13 1999 Sheet 1 L201 TP201 220uH Y 12V gt 2 P 12V C229 _ 10uF gt gt P45V A TP206 R201 d 576 R202 C201 C202 174 047uF 4 7uF TP207 O Q A A R203 3 32K U202A MC34072 TP210 A TP240 P 5V O V R204 TP211 150 Q C226 L202 047uF Bead A C204 R205 P201 pwr 047uF 750 U202B MC34072 C232 047uF NE Primary R236 i Transducer a 3 83K TP214 R212 56 2K OmmHG 0 5V P201 Out Boome 4 0v Joss v a C206 Comp 6 P201 6 047uF P 12V cC209 in 047uF C227 680pF P201 E XFPM 050KPGR P1 a A A U204 3 U204 1 Y EE R213 MC34072 mmag range P 12V 237K R244 R217 21 5K TP219 TP220 5 62K R214 R216 e 1 10K 19 6K E TP221 TP222 NIBP Offset DAC gt SE ota f Q a PWM D A NIBP A D SelC gt R215 76 8KHz 100K C207 c208 __ U204B NIBP A D SelB 2 iuF uF MC34072 R218 2 NIBP A D SelA gt A A A AN P 75V P 12V GEN P 12V C216 o C j S
150. pliant and will not encounter Year 2000 problems 2 WELCH ALLYN ATLAS PATIENT MONITOR SERVICE MANUAL 6200 43E REV A Section 1 General Information 1 3 Product Model Number Structure 621S0 ECG Nonin SpO NIBP 621SP ECG Nonin SpO NIBP Printer 62250 ECG Nonin SpO NIBP Temp Respiration Battery RS232 622SP ECG Nonin SpO NIBP Temp Respiration Battery RS232 Printer 622N0 ECG Nellcor SpO NIBP Temp Respiration Battery RS232 622NP ECG Nellcor SpO NIBP Temp Respiration Battery RS232 Printer 623SP ECG Nonin SpO NIBP ETCO Temp Respiration Battery RS232 Printer 623NP ECG Nellcor SpO NIBP ETCO Temp Respiration Battery RS232 Printer SUFFIX Use letter designation for language localization as follows E English F French G German l Italian S Spanish P Portuguese C Chinese J Japanese Use number designation for line cord localization as follows 1 US Canada Japan Version 2 European Version 4 United Kingdom Version 6 Australian Version SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS PATIENT MONITOR 3 Section 1 General Information 1 4 Main Menu Architecture Model 623xP Date Time Waveform Screen screen Language Silence duration ECG gain ECG lead set ECG speed ECG bandwidth e Set date and time Advanced Configuration Date Time CO2 Screen Reset Save Settings Service Mode Screen Initial pressure
151. ppendix Section A A ATA theorv of operations A toa repair parts list A interconnect diagram 620396 Rev A BEE electrical schematics and circuit board layouts E fa e EET Safety Tests Required Equipment and Procedures and Test Results Form SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS PATIENT MONITOR iii Section 1 General Information The Atlas combines in one unit all the necessary mea surements for patients under anesthesia for surgical recovery or bed side monitoring See Section 1 3 fora complete listing of product models and options According to the standards of care for Nurse Anesthe tists and Anesthesiologists all patients receiving con scious sedation are to be continuously monitored throughout the procedure and recovery phase by ECG SpO and NIBP CO monitoring is a requirement dur ing gas anesthesia when patient is ventilated The Atlas combines a CRT to display ECG and CO waveforms and LEDs for the other numeric values to maximize visibility and viewing angle Although not designed to be a transport product the monitor has an integral handle and it is small and light enough at 13 Ib to be easily moved A one hour battery enables the monitor to be moved with the patient from the surgery room to recovery room lt also maintains unit operation for up to an hour when power is interrupted IMPORTANT for a complete description on the func tion and use of the Atlas as well as user safety warn ings cautions
152. primary transducer must be within 1 5 mmHg at 150 5 0 mmHg The safety transducer must be within 4 5 mmHg at 150 5 0 mmHg 2 2 3 4 The primary transducer must be within 2 WELCH ALLYN ATLAS MONITOR SERVICE MANUAL 6200 43E REV A Section 2 Service 2 2 4 Deflation Test With the unit connected to a large adult cuff BETEN and a target inflation pressure of 200 mmHg Go to service mode have the unit perform a complete normal screen and set initial BP cycle pressure to 200mmHg For steps two and three the size of the step must be between 3 0 mmHg and 11 0 mmHg step 4 and all other steps above or equal to 40 mmHg step size must be between 7 0 mmHg and 11 0 mmHg All steps below 40 mmHg except for the last step will be between 4 5 mmHg and 10 mmHg The last step willbe between 0 01 mmHg and 10 mmHg 2 2 5 Charge Voltage Test Charge Voltage Test Check battery charging circuit Specification No Load 6 85VDC across right pin and left pin of Main PCB battery charge connector 2 2 6 Hardware Fail Safe Tests Hardware Fail Safe Tests 2 2 6 1 Over Pressure Test Atlas hardware must detect over pressure on unit pneumatic system between 296 0 mmHg and 329 0 mmHg 2 2 6 2 Over 15 mmHg Test Atlas hardware must detect if the pneumatic system has been pressurized greater than 15 mmHg for more than 155 seconds but less than 180 seconds 2 2 6 3 Under 15 mmHg Test Atlas hardware must detect if the pn
153. problem is with the board or connections and not serial communication problems 2 3 2 14 Press Trend button to Exit To calibrate the CO system in years 2022 or later it is necessary to reset the system clock to an earlier year perform the calibration and then set the clock to the correct year again The service center should keep a record of this since the Cal display in the Service Mode screen will be incorrect SERVICE MANUAL 6200 43E REV A Section 2 Service 2 3 3 CO RESET Need Watertrap and Scrubber 2 3 3 CO RESET 2 3 3 1 Press the Date Time button on the lower right of the monitor The Set Date and Time and Other Options menu will be displayed 2 3 3 2 Select the Reset CO selection by pressing the CO RESP ALARMS Off button CO Reset screen will appear 2 3 3 3 Follow the instructions on the screen Remove the CO watertrap Install the CO Scrubber onto the CO watertrap NOTE The Scrubber looks similar to a watertrap but is filled with white granules lt is included with model 623XX 2 3 3 4 Remove the tubing from the watertrap and I attach the Scrubber to the watertrap EE 2 3 3 5 Insertthe watertrap Scrubber combination Into the watertrap socket 2 3 3 6 Messages The system will report that it is sampling The system will then report Reset Complete 2 3 3 7 Remove the watertrap Scrubber from the watertrap socket 2 3 3 8 Detach the Scrubber from the watertrap and reattach the tubing 2 3
154. ps VDDH 6 8uF 100nF 330pF NY VDDH Oscillator decoupling C111 C19 C20 C21 C22 6 8uF cap 6 8uF C120 C128 100nF MPC823 decoupling caps R118 Q1 Base QI HRESET gt NL C112 C28 C29 C30 C31 C32 6 8uF 100nF C130 R119 NL NL VDDH FPGA decoupling caps KAPWR 1 58K to CPU 32KHz C113 C41 C42 C43 C44 C15 6 8uF Supply RF EMI Clock R121 100nF l lt HRESET_n Filters and Reset iu Circ its 12 4K 100K PORESET Input RF Suppression R122 R123 L3 Ferrite 120 U3 2 0V Vbackup gt Input Reset n lt PORESET_n C40 C38 C39 C118 C119 100nF C36 C37 6 8uF 100nF 330pF 100nF 6 8uF 330pF lesi 1 Jim Be Designed Jim Be u Mar 5 1999 Title Checked L Phillips 3 19 99 Release For Production Welch Allyn Inc Schematic 620005 dsn Power Distribution Clocks and Reset Document Number Rev 620005 C Thursday June 24 1999 Sheet 6 of 6 Release to Production 5 39251 JAC 3 23 99 LPP E No Load D16 5 39485 LPP 4 28 99 LPP D13 to Low Profile R51 to 316 5 39994 LPP 7 23 99 a Z Psenicnik 3 24 99 C 620008 C Release For Production J Bello 3 24 99 Date Friday July 23 1999 Sheet 1 of 5 Break Away PCB Section Flag Pole Area Trend SW9 Trend sw Lead Select SW11 Lead Select sw Print SW13 Print sw ACON LED Keyboard Circuits
155. r reduces the Analog In signal by 0 75 464 K 464 K 3 48 K Appendix A 10 14 99 F R235 R237 NIBP 464K 3 48K PWM A D Analog Input 7 Penano U210 2 Converter un P 5V Y 047uF x R230 P 12V 10K C221 E U208 3 047uF _ 4 P P 5V 1 ETA xe 27 14 R231 cats ba i 7 U210 7 4 73 2K 047uF E ETA 1000pF 2 der 3 ps L NIBP PWM ADC i a 3 48K MAX941 7 1 208 1 U210 3 A Ne 2 ug U207B ES 74HCT00 4 7uF TR U208A Ka R232 MC34072 L U207A 10K 74HCT00 U208 2 A Au K C220 1 l PWM A D Converter NIBP ADC Clock 2 pud e is D201 C 2 1 MMBD1503A U207 3 Integrator 2uSec Input L 1 2KH 781uS U207 3 ii I I I ye Comparator Inputs Analog In I 0 31v I I I I PWM Out l U207 6 I I I I I I PWM timer 3 2 A D Mux grounded circuits Analog signals are switched to the A D converter through MUX U209 Control of the multiplexer is through a serial communication channel from the main CPU The following signals are digitized 12 5V 2 Sampled version of the 5V supply Used to verify A D operation 13 SafetyPres Safety Pressure Transducer 14 PrimaryPres Primary Pressure Transducer 15 P 75V Reference voltage for A D calibration OmmHg pressure for Primary Transducer 16 P4 25V Reference voltage for A D calibration 300mmHg pressure for Pr
156. ransients Correct 5 39936 LPP 7 9 99 U1D q 5V Respiration Diff Amp Topology 74HCTO4 TP8 5V D B ADM U1E 74HCT04 TP9 TP11 D A Y Y FE Data O gt gt FE Data In R20 TP10 2 10K LED On l Y EKG Paged Power Sync 4 de os Hp ee Syn Betten Ege iR NIBP Page 2 U1B BEE 2 HA 5 Batt ID NIBP A D SelC oos 3 NIBP A D SelB D NIBP A D SelA NIBP Pump On oo NIBP ADC Clock NIBP Safety 5V NIBP 15mmHg oa SpO2 Pageld 74HCT595 NIBP Overpressure 047uF D NIBP Valve Close SPO2 Rx NIBP PWM ADC CRT Board O amp SpO20ut U8D MN r U 1 1 F OT Connector UTA 74HCT04 AA C j 74HCT04 D D ll C ILL ps N JEM H Nm r C30 rL u BY F aN Video HSyne 2 Ve 5V d KS 3 3V EA Ma E S SS cral TO Pages U8E Y II Video Data 4 74HCTO4 E ill 6 O gt gt RS423Rx CON6 R6 U8A Main PCA 1 96K sy 74HCTO4 2 Connector KZ 3 220pF TP5 3 s Y SE 4 7 S mis 22 RS428Tx U8F 36 H U8B 45V 74HCT04 3v E sd LG NIBP PWM ADC el PI 74HCT04 s EME A C NET 4 TP6 c Rio _ RS423 Tx O C2 NIBP OP x 212 PIC Data LLL T Deeg 3 3V C29 N gt iid emo t9 ptt sponte H 2 iui ue ETCO2 Tx MET Rig SPO2 Tx ae AT24C02N 10SC 2 7 USC 12V A ETCO2 Rx 176 hig SPO2 Rx R15 42D 74HCT04 A Spare 2 9c E20 ADC Clock a 1 96K lt Fan a Nbp Dara 218 522 te EEN S C NIBP 15mmHg 08 24 SPI Data Qut C40 C41 Connector LED Latch OS SCT TSbi bek NU 047uF uF CO2 Board ackup
157. rd SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 19 Section 3 Troubleshooting 3 4 Diagnostic Tests If distorted display on CRT Check connections CRT to Yoke cable CRT to Anode cable CRT to Deflection board Deflection board to Main board cable Replace Deflection board Replace CRT If good display but some items are distorted or missing from CRT display If ECG waveform heart rate lead selected heart symbol missing Replace Main board Button 1 Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu Press lt Select gt to highlight Button test Press lt BP START CANCEL gt to start test Press every button on system BP START CANCEL gt last Verify that buttons match up with their names and that all buttons are functional If a button does not report its name goto Button 2 If a button reports the WRONG name goto NVRAM 1 Press lt Trend gt to return to Idle screen Button 2 If a single button does not report its name Replace Dis play board If multiple or all buttons do not report their names Check Display board to main board cable Replace Display board Re install software Replace CPU board Replace Main board 20 WELCH ALLYN ATLAS MONITOR SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting 3 4 Diagnostic Tests Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu A D 1 Press lt Select gt to highlight Display A D channels three or four screens worth Write dow
158. ry test to guarantee that battery is fully charged but for functional test we can try it Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu Press lt SELECT gt to highlight Battery test The menu reports Battery Low Time XXX and Battery Dead Time Y YY These are the results from the last battery test The Battery Low Time is the time in hours and minutes that the battery ran in the last test until the Low Battery alarm started and the Battery Dead Time is the time from the beginning of the Low Battery Alarm until the system turned itself off when the battery voltage reached the cutoff level Write down the Battery Low Time and Battery Dead Time Unplug AC cord to start battery test The timers will begin Leave the system until it powers down Plug in AC and turn the system on enter the Service Mode menu select Battery Test again and write down the new values Compare these to the previous values and to the minimum specification Battery Low Time 1 Hour Battery Dead Time 10 Minute minimums Replace the battery if performance falls below specification NOTE Configuration settings for printing are different for text pages Advanced Configuration and Trend displays and for waveforms 133 Connect ECG simulator to generate a sample waveform SERVICE MANUAL 6200 43E REV A BATTERV Note 2 08 means 128 minutes which is the default setting indicating a batterv test has never been made before PRINTER
159. shooting 3 4 Diagnostic Tests Printer 2 Printer Settings 1 22 WELCH ALLYN ATLAS MONITOR NOTE Configuration settings for printing are different for text pages Advanced Configuration and Trend displays and for waveforms Connect ECG simulator to generate a sample waveform Press lt PRINT gt and look at waveform printout Look for darkness thickness of lines legibility of text blurring blooming of text Press lt DATE TIME gt lt TREND gt Get Advanced Configuration menu Press lt PRINT gt and look at text printout If waveforms too light or dark goto Printer Settings 1 If text too light or dark goto Printer Settings 2 If alignment errors Adjust printer mechanism If feeding problems Adjust printer mechanism replace feed roller If incorrect printout missing elements missing grid etc Connect serial cable between Atlas and PC Start HyperTerminal on PC At Pangea gt prompt type Pangea gt nvram get printer_strobe_width_normal lt ENTER gt Write down this value If problem is that WAVEFORM printout is too light increase this number If the WAVEFORM printout is too dark de crease this number Range is 0 256 Set new value with Pangea gt nvram set printer_strobe_width_normal XXX lt ENTER gt Pangea gt nvram write lt ENTER gt Where XXX is the new value Repeat the test that showed the problem Repeat this test and set process until ideal value is achieved Disconnect serial cable S
160. simulator for a normal reading 140 80 100BPM NSR BP 1 Press lt BP START CANCEL gt system should start pump display manometer value in SYSTOLIC LED this value should track and be very close to pressure displayed by manometer in BP simulator if fitted Largest number shown in SYSTOLIC should be very close to the Initial pressure setting recorded earlier from Ad vanced Configuration in step Test Setup 1 system should step down pressure showing step values in SYSTOLIC LED and then display correct SYSTOLIC and DIASTOLIC values system may show MAP value depending upon country and Advanced Configuration setting If in process display is wrong calibrate or blank replace main board If final Systolic Diastolic MAP display is incorrect Calibrate BP Press lt DATE TIME gt lt TREND gt to get to Advanced Con figuration menu Press lt Select gt to highlight Initial pressure Press lt Set gt to change Initial pressure to 280 mmHg Press lt Select gt to highlight MAP Press lt Set gt to change MAP to Yes Press lt TREND gt to return to idle screen Press lt BP START CANCEL gt system should start pump display manometer value in SYSTOLIC LED this value should track and be very close to pressure displayed by manometer in BP simulator if fitted SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 29 Section 3 Troubleshooting 3 4 Diagnostic Tests 30 WELCH ALLYN ATLAS MONITOR Largest number shown in
161. software information resides in CPU G4 YES software information resides in CPU ReCalibrat Atlas BP Power temperature and not CO H1 NO With atlas dl exe program the calibration constants are not changed H2 YES the NVRAM of the new main board will not have the correct calibration constants H4 YES the NVRAM of the new main board will not have the correct calibration constants Sequence H 1 Run atlas dl exe 2 Check alarm settings and other consumer preference advanced configuration settings l2 1 Set NVRAM 2 Recalibrate 3 Check alarm settings I3 1 download operating system 2 Check alarm settings and other consumer preference advanced configuration settings l4 1 Run atlas dl exe 2 Set nvram 3 Recalibrate 4 Check set alarm settings SERVICE MANUAL 6200 43E REV A 14 WELCH ALLYN ATLAS MONITOR Section 2 Service 2 4 Downloading Operating System When required to load latest revision software ona fully functioning Atlas or to reload software after replacing the MCU board The atlas_dl exe program loads the following files 2 4 Downloading Operat ing System when upgrading software or replacing CPU board atlas out gz Note Hyperterminal Naty COMME m queries the Atlas to deter nvram_ model txt mine which model number nvram language txt and language to down load Equipment or supplies required PC with Windows 95 NT Not
162. ss the isolation barrier through the optocouplers co U605 ou NIDI IJ PJOIMI 1JOI SW RLD LA SW RLD RA Mux Lds C Mux Lds B Mux Lds A Mux A D C Mux A D B Mux A D A co 74HCT595 1 SpO2 out SpO2 serial data waveform and status information Opto U411 Data from the SpO2 board to the CPU board 2 Serial Data Serial Control data for isolated circuits Opto U613 Data from the CPU board to isolated circuits 3 Serial Data Clock Data clock for serial control data Opto U612 Clock from the CPU board to isolated circuits 4 ADC Clock Clock for PWM A D converter also used to latch control shift registers Opto U611 Clock from the CPU board to Isolated circuits 5 PWM A D data A D Pulse width data Opto U610 Pulse width data from isolated circuits to CPU board 6 Respiration Clock Clock for Respiration drive circuit same signal as power supply sync U710 Clock from the CPU board to isolated circuits 2 5 ECG Circuits 2 5 1 Overview The front end will meet all applicable AAMI standards Atlas provides a 5 wire front end and will be compatible with both a 3 wire and 5 wire cable Monitor 0 5Hz to 40Hz Extended 0 05Hz to 100Hz bandwidth will be provided The ECG amplifier always transmits 0 05Hz to 100Hz data to the CPU board unless in baseline restore mode additional filtering for Monitor Bandwidth is implemented in software 2 0 2 Defib Protect RFI Filtering The ECG lead set includes a IK resistor
163. ssure conditions pressures in excess of 13 3mmHg nominal and 314mmHg nominal are detected These error conditions are transmitted to the gate array on the CPU board and if the error conditions are present for a long enough time period a fault message is displayed and NIBP is disabled see above for safety performance operation The output of the Primary Transducer drives the two comparators U203A B The comparison voltage is derived through a resistor divider chain from a 5V regulator U201 This regulator is the supply voltage for the primary transducer and sense the primary output is proportional to the supply voltage tolerance errors in the regulator are not critical 464K 3 3V L201 220uH 12V gt gt gt P 12V gt gt P 5V PrimaryPres gt gt R208 1 96K C229 10uF U201 R201 78L05 576 8 1 IN OUT A a e e a ee R202 EE C202 174 gt gt gt NIBP Overpressure C201 047uF 3 3V 4 2 es SS D A m c R211 x R203 1 96K 3 32K MC34072 gt gt NIBP 15mmHg 01uF AI Over Pressure Fault Circuit P 12V R204 150 gt gt P 75V C204 R205 047uF 750 U202B MC34072 A Appendix A 10 14 99 4 5 Pump and Relay Drive Two independent dual transistor switches Q202 and Q203 control the pump and valve Q202 is controlled by logic circuits on the CPU board and is normally in the on state Q202 is only opened in a fault condition over pressure A D calibratio
164. t louder eight times Should get 163 Press Silence and start stopwatch Should be quiet for the time set in Advanced Configuration menu then alarm comes back on 164 Disconnect SpO cable from Atlas 165 Should hear technical alarm see error message SpO cable not detected 166 Press SpO ALARMS Off button 167 Should stop Technical alarm sound and erase error message and light LED in lt SpO ALARMS OFF gt button 168 Press SpO ALARMS OFF button again 169 Should hear Technical alarm sound see error mes sage LED unlit in lt SPO ALARMS Off button 170 Turn system off and back on SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 9 Section 3 Iroubleshooting 3 1_ Functional Test and Initial Diagnostic lt CO RESP ALARMS Off gt button 171 Press lt DATE TIME gt lt TREND gt 172 Get Advanced Configuration menu 173 Set Second trace selection to CO 174 Press lt T REND gt to return to idle screen 175 Insert CO watertrap with hose 176 Breath into hose until waveform is displayed 177 Remove CO watertrap 178 Should hear Technical alarm and see error mes sage CO watertrap not detected 179 Press lt CO RESP ALARMS Off gt button 180 Should stop Technical alarm sound and erase error message and light LED in lt CO RESP ALARMS OFF gt button 181 Press CO RESP ALARMS OFF button again 182 Should hear Technical alarm sound see error message LED u
165. ter 2 SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 15 Section 3 Troubleshooting 3 3 TOP LEVEL Check Battery TROUBLESHOOTING Goto Battery 1 INDEX Check Alarms Sounds Goto Sound 1 Check BP Goto BP 1 Check ECG Goto ECG 1 Check SPO2 Goto SPO2 1 Check Temp Goto Temp 1 Check CO2 Goto CO2 1 16 WELCH ALLYN ATLAS MONITOR SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting 3 4 Diagnostic Tests Disassemble and inspect power supply wires Power 1 Check fuse in power supply Check fuse in neutral wire to power supply Test power supply on bench Check fuse in battery cable If AC not lit check power cord continuity outlet power Power 2 available Check connection at appliance inlet Goto Power 1 Power 3 Turn on power Green light in power button If not lit goto LED 1 Loud beep when button pressed If not heard goto Sound 1 Fan running 622xx and 623xx If not running goto Fan 1 Three dashes in SYSTOLIC Three dashes in DIASTOLIC If not seen goto LED 1 If passed goto BP 1 Two dashes in SPO2 takes several seconds after BP dashes come on Three dashes in PULSE takes several seconds after BP dashes come on Pleth none or a single bar at the bottom or two bars at the bottom If not seen goto LED1 If passed goto SPO2 1 No lights in TEMP 622xx and 623xx If any are lit goto Bad Boot 1 No lights in ALARMS OFF buttons If any are lit goto Bad Boot 1 SERVICE MANUAL
166. the time to the second The BP should abort with an alarm after no longer than one minute SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting Connect a 5 lead cable set to the simulator and to Atlas 3 4 Diagnostic Tests Configure the simulator for NSR 100BPM and Impedance Respiration ECG 1 Plug the cable into Atlas Press lt DATE TIME gt TREND Get Advanced Configuration menu Press lt Select gt to highlight ECG lead set Press lt Set gt to Set ECG lead set to 5 wire Set ECG gain to Automatic set ECG speed to 25mm s Set ECG bandwidth to Monitor set Second trace selection to ECG Press lt I REND gt to return to idle screen Should see ECG cascading onto second line Scale bar on left of top line Heart rate displayed as set on simulator Lead Selected Il Heart rate tone high pitched lf ECG waveform not seen lf ECG waveform not cascading In Scale Bar not on top line If Heart Rate not displayed or displayed incorrectly If Lead Selected not shown If Heart rate tone not heard Re install software Replace CPU board Replace Main board Press lt LEAD SELECT gt and step through each of the lead settings Should see Different looking ECG waveforms Heart Rate will go to dashes and alarms on some leads Set lead selected to II Press lt DATE TIME gt lt TREND gt Get Advanced Configuration menu Press lt Select gt to change Second trace selection to Respiration Press lt I REND gt to return to idle screen
167. tic 62008 B 405 C NIBPLEDDrvrs amp Schematie Soo B 5o5 C Sm tEDDwes Schema 620041 B roi C Printer Electronics Schematie 620007 D tots C MaiBoad Model220 Schematic 620007 D 208 C X NliBPElectroncs Schematic 620007 D 3088 C DC DC Power Supply A Schematic 6x01 D 4of8 C Power isolation and Sp Interlace Sohematio 62007 D 508 C ECGAMPP Schematic 620007 D 5o f8 C ECGA D Interface Schematie 620007 D 7o8 C X Respiraton X Schemaic 620007 D 8of8 C Serial Communication Schematic 620027 B 1of1 C X ECGPatentCabe Component Schematic 62002 J B to B ETCO PCBAssembly IsometrioViewofETCO POB 620150 B toft B PowerSuppy5sow_______ Performance Specification 6201541255210 B tof1 B Assy Nonin SpO Board with Shield 620152 A toft B X MotrStppr Motor Schematics and Values 6201560 B 10ff B Pump Pneumatic Valves 620166 A toft B CableAssembyECG______ Cable Pinout 620166 C to B CableAssemblyCO CablePimout 620160 C Tol B Cable Assembly Nellcor Sensor GablePinout 620187 B 1of1 B Pneumatic Sub Assembly l E
168. tic 4 1 19 Disconnect tubing from fitting 4 1 20 Remove SpO connector from front panel 4 1 21 Remove CRT ground wire Do not remove screw and washer 8 WELCH ALLYN ATLASMONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 1 22 Remove opposite CRT mounting screw and remove CRT 4 1 23 Remove Keypad circuit board 4 1 24 Remove Display PCB SERVICE MANUAL 6200 43E REV A WELCH ALLYN ATLAS MONITOR 9 Section 4 Disassembly and Repair Domestic 4 1 25 Remove soft keys from Bezel 4 1 26 Unscrew Alarm Silence Button holding screw to remove Silence button 4 1 27 Remove printer by depressing tab 10 WELCH ALLYN ATLASMONITOR SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 1 28 Slide printer out of rear housing 4 1 29 Unplug motor connector For reassembly place connector on motor so orange wire is near mounting screw 4 1 30 To remove printhead disconnect cable from printer PCB Lift spring and remove printhead from printer frame WELCH ALLYN ATLAS MONITOR 11 SERVICE MANUAL 6200 43E REV A Section 4 Disassembly and Repair Domestic 4 1 31Remove backing plate 4 1 32 Remove connector Flex circuit is delicate Therefore do not pull on connector Use small screwdriver to pry connector apart 4 1 33 For reassembly of printhead use long nose pliers to attach cable to eliminate stress on flex circuit of
169. tings 144 Turn system off and back on 145 Pulse tone should be silent even though heart rate is shown 146 Press SpO volume button 8 times Should get audible and then louder 147 Disconnect ECG cable SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting 3 1 Functional Test and Initial Diaqnostic 148 Should hear Technical alarm and see error message 149 Press HR ALARMS Off button 150 Should stop Technical alarm sound and erase error message and light LED in lt HR ALARMS OFF gt button 151 Press HR ALARMS OFF button again 152 Should hear Technical alarm sound see error message LED unlit in lt HR ALARMS Off button 153 Turn system off and on SpO pulse tone 154 Attach SpO cable and cuff and attach to simulator or finger 155 Should hear heart rate beep different tone than when ECG was connected 156 Change SpO setting on simulator or hyperventilating hold breath should hear tone pitch change up or down tracking simulator setting Limit Alarm alarm volume control Silence button Technical Alarm lt SpO ALARMS Off button 157 Press right Select button until SpO LO is flash ing press right Set UP to change SpO LO setting to 99 158 Wait until SoO LO stops flashing 159 Setsimulator to SpO at 90 160 Should hear Limit alarm 161 Press Alarm Volume quieter but not silent 162 Press Alarm Volume eight times Should ge
170. u mp 150 MAX wa u un us H3 1 FO 600 BIS wu C md l 200 FOB HOLE PAITERN KE Gg GR 15 51 404 MANUFACTURER ZUAN MAGNETIC BEAVERTON OREGON 3e g i bix INE P OR ME e EE II e CONO UE JON eu UTE S s x 3 LABELING THE TRANSFORMER SHALL BE LABELED AND 3 V REGULATED O 100 mA RE Meus dispose EE EN MANUFACTURER S NAME WELLCH ALLYN PART NUMBER I E 620020 3 S DATE CODE YYWW OR APPROVED ACCEPTABLE FORM 4 SCHEMATIC AS NOTED Ox SPECIF CATION A y ISOLATION CAPACITANCE lt 7 5 pF VOLTAGE BREAKDOWN gt 8 KV DC Ji INPUT pee UR 7 5V 5V O 4O0MA OUTPUT 7 5 V p 0 5 V 40 mA WW L OUTPUT 2 5 V 100 mA REGULATED PWM gt eg OUTPUT 3 7 5 V p 0 5 V 40 mA SWITCHING FREQUENCY 76 8 kHZ OPERATING MODE DISCONTINUOUS NO DESCRIPTION PRIMARY WINDING PIN 5 TO PIN 8 DAE RORIS DONE ON Merc NDUCTANCE 35 uH b 10 CL FEEDBACK p lt HI REENEN R ES ST AM E O 5 OHMS b 2 OF EQUIPMENT OR DEVICES WITHOUT WRITTEN PERMISSION SECONDARY WINDING PIN TO PIN 4 INDUCTANCE 8380 uH b 10 WJM RESISTANCE 0 25 OHMS b 154 APPROVED I I CiP UIT SCHEMAT E LIP 4 08 99 Es TH
171. ure voltage and any offset is corrected This correction comes from the summation of an error correction signal through op amp U204B The CPU will output a pulse width modulated signal at 76 8KHz This signal is RC filtered to provide ad DC voltage at U204 5 This signal can adjust the offset seen at the A D converter by 20mmHg Appendix A 10 14 99 P 5V M C226 L202 I 047uF cant Primary Transducer A OmmHG 0 5V 300mmHG 4 0V C232 047uF R236 3 83K i x R212 56 2K E 2 P201 Out P 12V C209 K eis C206 047uF EH Comp e P201 6 047uF P201 C227 XFPM 050KPGR P1 680pF A 7 R219 il i 1 96K U204 1 geg PrimaryPres 4 U204A MC34072 C228 Y 047uF M Zero Adjust P 12V R217 rosa 20mmHg range A 21 5K R214 R216 MI e 10K 19 6K 01uF NIBP Offset DAC gt C207 1 U204 5 PWM D A s b 100K C200208 l ba ok 1 tuF 1uF T MC34072 A A N P 75V 4 3 Safely Transducer Amplifier The safety transducer is compensated for temperature drift but gain and zero are not calibrated The safety transducer does not include built in voltage amplification The safety transducer output is a differential voltage proportional to the supply current through the device The initial accuracy of the safety transducer is very loose in the order of 50 However the drift over time and temperature is very good Then it is necessary to calibrate the output of the safety transducer This is done my m
172. ut does not occur When system powers off plug in AC and turn the system on Press lt DATE TIME gt lt LEAD SELECT gt Get Service Mode menu Press lt SELECT gt to highlight Battery test The menu reports Low Time XXX and Dead Time Y YY write down the new values Compare these to the previous values and to the minimum specification Low Time gt 60 minutes Dead Time gt 10 minutes If either number is below specification replace the battery Power on beep Turn off system and turn on Should hear loud Power on beep If beep not heard Continue with this test If no other sounds are heard Replace Speaker Hardware SERVICE MANUAL 6200 43E REV A Section 3 Troubleshooting 3 4 Diagnostic Tests ECG pulse tone pulse volume control saving set tings lt HR ALARMS Off gt button Connect ECG simulator with a normal ECG setting should hear heart rate beep at constant high pitch If heart rate beep not heard press SPO2 volume button three times If heart rate beep still not heard If power on beep was heard isolate to CPU main board Could also be display board with a bad button Press SPO volume button 8 times Should get quieter and finally silent If heart rate beep does not change volume Replace Display Board Press lt DATE TIME gt lt PRINT gt or lt DATE TIME gt lt FREEZE gt to Save settings Turn system off and back on Heart rate beep should be silent even though heart rate is displayed
173. wn buttons Press Set Set current limit to 3 mA with up down buttons Q Tga w H Press Set I Set Timer to 60 seconds with up down buttons J Press Set K Set Continutty off L Scroll through settings with Set button M When settings verified press Exit button N Connect Red Clip lead to joined Hot and Neutral lines of the test connector O Connect BIk Clip lead to grd wire of the modified AC cord P Position electrical leads at rear of test bench Q Press green Test button Wait for 60 seconds R Record current mA Mains to ECG Output 4KV A Plug modified ECG cables into ECG connector at front of Atlas unit B Connect the modified AC cord hot neutral and earth ground connected to the back of the Atlas Monitor C Connect the black lead banana plug to the return jack of the Hypot 3500 Dielectric tester D Connect the red lead banana plug to the red jack of the Hypot 3500 Dielectric tester E Turn on 3500D Press Set F Set voltage to 1500 VAC with up down buttons G Press Set H Set current limit to 3 mA with up down buttons I Press Set J Set Timer to 60 seconds with up down buttons K Press Set L Set Continuity off M Scroll through settings with Set button N When settings verified press Exit button O Connect the red clip lead from HV Jack of Hypot 3500D to modified AC connector cord with all lines connected Hot Neutral and Ground P Conne
174. x MMBT3904L U411 R412 HCNW4503 511 TP423 A Q403 e iso402 a gt gt DWE BO SpO20ut C423 1000pF d Initial Checked L Phillips Approved Designed s 3 16 99 DECEO and Fast Transients DESEE filt 12V P Grounded SpOZ Cl1rcuits C412 10uF C409 470pf 12V 409 1 Y TP402 O R405 TP404 215 C414 U402 ref TP406 047uF g T401 8 d TRAOB U402 SH D405 047uF BAV99L TP409 MEER gt R407 o Q401 10 S SHTDWN MTD3055V O U402 e META OSCOUT lt FE Pwr Syno au R409 CT Q402 5 11K MMBT3906L U402 sen TP413 R406 Q 0 2 TP414 TP415 R408 TP416 TP417 Q GC 100 O Za Q C411 R410 2200pF 10K 3 9e 5V Sg SC R411 iso401 b 5 11K opto fb R404 316K 5V Welch Allyn Inc 620002 dsn Schematic Power Iso and SpO2 interface 3 16 99 Size Document Number Rev C 620002 D Release For Production J Bello 3n m Friday July 09 1999 Sheet 4 of 6 J501 CON6 OO O S NE Shield Defib Protect RFI Filteringo TP501 D506 R506 d BAV99L 10K Vee clamp TP502 R507 Y Input Buffers 10K Gain 9 26 Vee clamp N D501 D507 MMBD1503A BAV99L fVcc TP503 TP504 R501 d R508 Q 51 1K 10K Right Arm D501 3 U501 3 N501 R509 LAMP NEON C506 TP50X 22Meg U501A 220pF MC34002 R509 1 E R557 22Meg D502 MMBD1503A AN fVcc VLdsOff TP511 TP512 O R510 O E 10K N502 R511 LAMP
175. xploded View of Pneumatic Sub 54 A to B CableAssemblyCO CablePimout Page 1 AC DC Power COnTlec box gt gt AC 12V Jumper wire EKG PWM ADC 45VE 90 ii KFE PWM ADC U1C NA Release to Production B 39118 JAG 3 15 99 LPP m See ECN worksheet 5 39456 LPP 4 27 99 LPP ES ii REI Inr ESD 5 39822 LPP 6 23 09 LPP and Fast Transients Mods to U2 clock line Key Clock b Serial 170 connector 5V Model 200 Serial I O manufacturing test only 3 RJ 45 lt x 00 O O1 P Q N Front Panel Display Connector al lt J8 CON14AP gt gt On Off Key Page3 ji R7 AC GE 74HCT04 minimum f TP7 load 12V Y 5V U1D d Fan 74HCT04 TP8 T C22 Connector EKG ADC Clock Y LIOC 047ur mm O gt gt FE ADC Clock Recorder C39 U1E ESD Ground 047uF 74HCT04 TP9 Tab 187 A Y N CON2 FE Data E 7 Back RO OND al O gt gt FE Data In ackup U2 Reset gt Seria A up Batte ry gt BackupBattery d Data SASSO 74HCT04 T 5V TP10 Q4 y e 2N7002 Power syne o gt FE Pwr Sync gt lli Page 2 ae LithMeas E NIBP A D SelC RI EE Se Page NIBP A D SelB D ESA ESE NIBP A D SelA 3V Lithium NIB T on NIBP ADC Clock NIBP Safety 5V E NIBP 15mm

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