PRN 50-M (M-Port) and PRN 50 (AutoPort) Digital Writer
Contents
1. 6 14 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Interface PCB Schematic Diagram SD801390 001A Sheet 2 of 3 Dow y X om coi E att gf uf 5 948 2394 f Is La EAS E E gt 8 7 7 5 5 e E 5 3 gt m 55 ASYNC_TX gt 4 01 5 509 01 B 133v 1 A 55285 58 E E s YE al oe gt gt gt 24441 88 27 5 7 5 E ET Se 2 2 gt gt 2 ERE De 22 z E e 1272 gt zQ Les 55 yR3 SMBJ50A RETURN CLAMP VRI E isy vi 425971 6 1 vi 1257714 2 4 CHASSIS 5 A A 8 7 Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 Interface PCB Schematic Diagram 50801390 001 Sheet 3 of 3 RETURN RETURN RETURN RETURN RETURN POWER 3 3V 3 3V 5 45V 0 01 0 01 0 01 0 01 REFD VALUE C14 cs C6 C11 RETURN RETURN RETURN RETURN RETURN NOT USED POWER 433V 433V 45V 45V IC TC7S08F MAX3221 uA9638C HCPL2602 REFD U6 6 162. 6 8 PRN 50 M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 50801390 002 iagram D ic S chemati Interface PCB 50801390 002 Schemat Sheet 1 of 3 AVNIDINO OVI I 1335 v N38 007 06ET0805 1999 023 32V3U31NI LYOd W W 0S 9 W3HIS ONS 3Sv313u NOISIAIC SNDIOJLINO SRALSAS ALLANOUVA 9 138 H SE vf To 7 f AEE 5 104610 4844 M E DSIN uM YILIUM E gt ASNA ze 13538 U31 uM 1 597 U311UM 1138 62 3M U3lluM Nuniau oE f S U31IUM z E lt lt lt ii lt lt lt 5 19318 394039 NABH gt rom XI INASV 2 5 you jouJou panpisur panosu jou apow 1521 98 310N 5 NOdn 38 VUM SU3HI0 803 ONIUNLIVINNYW 303 035 38 LON TUA 1 ONIONVLSH30NN 130551 N338 SVH 51 1 1S3831NI SLI 01 1VIN3WIUL30 WU3NNVH ANY NI 035 38 LON INI W31SAS 7V3I034 FLLINOYWW 30 30 Alu3dO d 3Hl 38 702 AOS 580112 4 2 TV
3. 14238 55371 LNOYS n ILON 335 M2V8 335 ALON 33 713239 5 5 S 31ON 335 asna 318V2 LNOYS 5 5 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Upper Level Assembly Block Diagram Block Diagram res M IEC CONN Swi GND AC INLET FUSE HOLDER SWIJE SWITCH GND CHOKE A D pu W1E1 SW1J1 SW1J4 YEL GRN W2E1 W2E2 BRN BLU E1 w2 DR CHASSIS W2P1 A4J1 4 POWER SUPPLY amp amp 9 E 28 w 23 e oog Q lt 2 CHASSIS 95 3 28 INTERFACE PCB ASSY o A3J4 lt lt 55 A2J3 CHASSIS 2j 5 A2 THERMAL PRINTER 50 MM 4 50 1 FRONT PANEL ASSY LED1 LED2 sw2 POWER PAPER GRAPH STOP Mey
4. 4 SAO 422 18 3 Lene 23 5 C Printhead 445 AS paper Parar cycim At the start of each test pattern are printed seven lines of text Verify that all text and patterns are satisfactory as follows First and second lines The first two lines consist of a GE Medical Systems Information Technologies part number software revision and date for the Boot and Main software Third line Printed on the third line is the measured printhead voltage Printhead Forth line The forth line shows the measured printhead temperature in degrees centigrade This temperature varies between 20 and 50 degrees and depends on the ambient temperature and what is printing Fifth line The fifth line is the printhead resistance range The exact printhead resistance range of your writer is printed on a label affixed to the printhead which you can view by opening the paper carriage door as shown in the drawing at the left The resistance value printed on this label should be within the range printed on the fifth line Sixth line Printed on the sixth line is the speed the test patterns are printing Seventh line Printed on the seventh line is the duty cycle of percent of time the drive motor is on Revision A PRN 50
5. 5 30 dO NO OL 1431 6 WALI T38V 1 YILNI9 79 WOLLOS NI 1 NMOHS SV 301 NO Q3133SNI 38 LSNW S3sn3 ISN SAOWSY LITNI NO N3dO 5 NINILH IL N3HM QV3H LOVLNOD GIOAV ACISNI SM3N2S SNILNNOW SS322V OL YALNIdd N3dO OLNI A1SWASSV 14248 ONINOILONNA SIHOLV1 HOLO3NNOO JHL LVHL OL ONL AILHSMS NMOHS SV HOLO3NNOO OL 82d NI SNINN3dO H9nO3HL 2 WALI T3NVd LNOY4 IHL 0334 WALI 13238 OLNI LZ WALI LHSSNI gt MOGNIM 937 Gasiv JHL OL 330sS33d AlddV LON TdNVd ANO3H 30 301 OL SL WALI T38V 1NSTTV EL WAL 1 I3Z38 653234 OLNI WALI T3NVd 1NOH4 LH3SNI NMOHS SV 713977 HOLO3NNOO JHL NO JHL NIHLIM 22 WALI 1391 lt MOVE SMHOLO3NNOO JHL MO 138 NMOHS SV 4 WALI T38V131N39 72 22 WALI 1 IHL 30 TVNIWH31 ANNOYS IHL OL 5 40 HOV LLV WALI SLNN Sd3x OML 32V ld SV OL WALI A18W3SSV 340H2 HOVLLV 108NAS OL LX3N NO 9 WALI 39974 SALON
6. Writer Replacement Illustrations Loosen the Screws Separate the Assembly Inside Front Bezel Unlock the Flex Cable Remove the Flex Cable Remove amp Replace the Writer Reattch the Flex Cable Lock the Flex Cable 3 8 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Troubleshooting General 5 Thread the mounting screw completely through the ESD shield as shown below before sliding the two halves of the PRN 50 M or PRN 50 back together ESD Shield View Incorrect 6 Carefully slide the two halves of the PRN 50 M or PRN 50 back together open the paper carriage door and tighten the two mounting screws Completion 1 Reattach the power cord to the unit To verify the operation of the PRN 50 M or PRN 50 complete the System Performance Test on page 4 9 3 Becausethe thermal writer was replaced perform the Ground Earth Wire Leakage Current Tests on page 4 14 and the Enclosure Leakage Current Test on page 4 15 Power Supply Replacement Procedure This procedure details the removal and replacement of the power supply assembly in the PRN 50 M and PRN 50 CAUTION Tocontrol static discharge damage be sure to discharge any static charge you may have built up before starting procedure Wear a grounded antistatic strap and use grounded test equipment This procedure should be performed in the order listed 1 Turn the ON OFF switch OFF
7. Always use the ON OFF I O switch to apply power Remove the power cord from the unit 2 Disconnect the PRN 50 M or PRN 50 from the patient monitor and communication network if applicable Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 3 9 2006503 001 Troubleshooting General Disassembly To gain access to the power supply assembly refer to the illustrations on the previous page and dothe following 1 Openthewriter door and locatethe two Phillips screws inside at the back of the paper roll compartment 2 Fully loosen the two captive screws separate the two halves of the PRN 50 M or PRN 50 assembly and carefully set the writer and front bezel assembly aside The two screws are retained in the assembly CAUTIONS To avoid doing possible damage to the thermal print head access the screws through the two slots in the paper carriage door Always hold the writer and bezel together to avoid putting strain on the flex cable and front panel Power Supply membrane Disconnect the cables at J1 and J2 on the power supply Remove the four mounting screws and remove power supply Install the new power supply and reverse the above procedure to reassemble the writer NOTE The power supply is auto sensing and requires no adjustments 6 Return removed power supply to GE Medical Systems Informati on Technologies Service Completion 1 Replace power cord to unit To verify t
8. m 5 5 5 6 Wiring Diagram otters Sate ES 5 7 5 8 ii PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Interface 6 1 General RUN 6 3 22 epe RE 6 3 Power Supply Requirements 6 5 Input Output Signal Requirements 6 5 Parts List 801390 002 6 7 Parts Location Diagram 801390 002A 6 8 Schematic Diagram D801390 002A 6 9 Parts List 801390 001A 6 12 Parts Location Diagram 801390 001A 6 13 Schematic Diagram SD801390 001A 6 14 Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer iii 2006503 001 PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 Revision A 1 Introduction Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 1 1 For your notes 1 2 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Introduction Manual Information Manual Information Revision History
9. 45 AutoPort Yes 2001973 001 50 418335 00x M Ports Octanet RJ 45 PRN 50 R 45 M Port Yes 2001973 001 Octanet 418335 00x AutoPorts PRN50 RJ 45 AutoPort 418335 00x CIC DB9M Serial PRN 50 RJ 45 M Port Yes 2006550 001 CIC 418335 00x Port PRN 50 RJ 45 AutoPort 422843 00x Eagle 3000 DB9F Async Either DB9M Async No 700179 00x Eagle 4000 PRN 50 Solar 7000 or PRN 50 Solar 8000 Tramscope Centralscope NOTE The RJ 45 connector protocol is specified on the label below the RJ 45 Connector i e M Port or AutoPort AC Power Cable Connector M Port or AutoPort Async Comm op Power Cable 0 Serial Number Back Panel 2 6 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Equipment Overview Description of Equipment Table 3 Adapter Cable References for Table 4 Cable or Adapter Part Number AutoP ort to M P ort Adapter GEMS IT 2001973 001 45 Cable GEMS IT 418335 00x CIC DB9F to PRN 50 M RJ 45 Adapter GEMS IT 2006550 001 Female DB9 TO Male 45 Cable GEMS IT 422843 00x Scope DB9M DB9F Cable GEMS IT 700179 00 Table 4 Connection of a PRN 50 M PRN 50 to a Monitor Host Instructions Solar 8000M With the PRN 50 M writer which has the M P ort interface 1 Connect one end of an RJ 45 cable into the 45 connector on the PRN 50 M labeled
10. 7 A 9n gt CdWY A 783 ST09VITW18 pnoy uni N3 hi 8 SI09VITW18 uL 4404 0138 7D 0 A 1 Lr 1 A TZZEXYW BE 2092 1825 Ln 184 ST09VITW18 584 ST09VITW1H s 5 28 96 sn 984 82 E94 075088 015 5 8 5 91 Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 6 10 2006503 001 Schematic Diagram SD801390 002A Interface PCB Sheet 3 of 3 VNIJJUO 0 2 E 0 1334 5 A0S 3uv 580112 4 2 11 SOVUV4OUIIN NI 200 06 0805 iyya 5 3owviDYdvo mv 1 M8 1 SWHO NI 32 38 1 LYOd W W 0S W3HIS SINIYA 328151538 11 JALIY 5 15 NV A90IONHO3I NOLLVWGIOANI A9 03401104 SIWYN 19 1 11 SNALSAS IVOId4N 15 031412345 3SIMu3HL0 5531 Nuni3u L 2 N 28 96 sn 3199 035 LON NYNL3Y Nun13u 2092143 NYNL3Y Nun13H 38E96Vn Nuni3g TZZEXVW Nuni3u 3805121 Nuni3u Nuni3u 21 58 15389193 96 8 9133W 6 11
11. Purpose of Manual Each page of this manual has a revision letter located at the bottom of the page It identifies the revision level of the entire manual This may be important if you have more than one manual and you wish to know which is the most current For the initial release all pages have the revision letter A For the second update all pages receive the revision letter B The latest letter of the alphabet added to the table below corresponds to the most current revision Table 1 Revision History Revision Date Comment A 3 23 2001 Initial Release This Service M anual covers the use of both ThePRN 50 writer with the M Port interface PRN 50 M and ThePRN 50 writer with the AutoPort interface PRN 50 This manual provides technical information for service representatives and technical personnel involved in configuring and maintaining the PRN 50 M and the PRN 50 Digital Writers Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 1 3 2006503 001 Introduction Safety Information Safety Information Responsibility of the Manufacturer GE Medical Systems nformation Technologies is responsible for the effects of safety reliability and performance only if assembly operations extensions readjustments modifications or repairs arecarried out by persons authorized by GE Medical Systems Information Technologies m theelectrical installation of the relevant room
12. position 2 Remove the power cord from the mains power source and the power entry module 3 Usea small screwdriver to release the power entry module door loosen the fuse holder block from the power entry module 4 Remove the fuse holder block replace the defective fuse s and reassemble Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 3 5 2006503 001 Troubleshooting General Thermal Writer Replacement Procedure This procedure details the removal and replacement of the thermal writer assembly in the PRN 50 M and PRN 50 NOTE To control static discharge damage be sure to discharge any static charge you may have built up before starting this procedure Wear a grounded antistatic strap and use grounded test equipment This procedure should be performed in the order listed 1 Turn the ON OFF switch at back to OFF position Always use the ON OFF switch to apply power Remove power cord from unit 2 Disconnect the PRN 50 M or PRN 50 from the patient monitor and communication network if applicable Disassembly Toremove the thermal writer assembly refer to Writer Replacement Illustrations on page 3 8 and do the following 1 Open the writer door and locate the two Phillips screws inside at the back of the paper roll compartment 2 Fully loosen the two captive screws and separate the two halves of the PRN 50 M or
13. 4 6 in Depth 9 3 cm 3 7 in Net Weight 2 6 kg 5 7 Ib with base 1 2 kg 2 7 Ib without base Mounting Free standing when used with optional pedestal base Optional wall mount also available 2 10 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Equipment Overview Technical Specifications Certification Safety standards UL Classified for 2601 1 UL Classified for CAN CSA C22 2 No 601 1 EC 60601 1 Certified CE Marking for the 93 42 EEC Medical Device Directive Classifications Equipment components are classified according to E C 60601 1 as Table 8 Product Classifications 585 B 514 8 5 j d 5 5 55 B 5 5 n 1 5 55 8 aj 3 5 5 BE 52 E 5 5 E 3 ib 25 9 f 8588 55 8 E 5 4 RERS 25 PRN 50 M Not Marked Ordinary Not Suitable NA Continuous PRN 50 Not Marked Ordinary Not Suitable NA Continuous Key Class equipment B Type B equipment BF Type BF equipment CF Type CF equipment NA Not applicable Ordinary Ordinary equipment enclosed equipment without protection against ingress of water Not Suitable Equipment not suitable for use in the presence of a flammable anesthetic mixture with air or with oxygen or nitrous oxide Underwriters Laboratories Inc wSSIE Classified by Underwriters Laboratories Inc with respect 2 to electric shock fire mec
14. 50 AutoPort Digital Writer i 2006503 001 4 1 Maintenance Schedule 4 3 General onec diee Mad d XO Etro 4 3 4 3 General Cleaning ee n tien roe EA 4 4 Cleanirig Print Head 4 5 Performance Test eee 4 6 System Performance 4 9 Procedure 4 9 Completo Mistni ensi ns 4 10 Electrical Safety 5 4 11 General DE 4 11 Recommendations 4 11 WalliReceptacle Test er octets ttem eter at e 4 12 Ground Earth 4 12 Ground Earth Wire Leakage Current Tests 4 14 Enclosure Leakage Current 4 15 oboe a dd 4 16 Upper Level Assembly 5 1 tee atte RU SE euer 5 3 Upper Level esce te eoe tar teg e ede a 5 3 Parts List 418331 001B 5 4 Exploded
15. DB9 TO MALE RJ 45 cable to the DB9M serial port connector of the CIC 3 Make sure that all components have power on 4 Make selections desired using the Graph menu options N Eagle 3000 Eagle 4000 Solar 7000 Solar 8000 Tramscope Centralscope With the PRN 50 M which has the M Port interface or the PRN 50 writer which has the AutoP ort interface 1 Connectthe DB9F end of the Scope DB9M DB9F cable into the DB9M connector in the PRN 50 M PRN 50 connector labeled Async Comm 2 Connect the other end of the Scope DB9M DB9F cable to the DB9F Async Comm serial port connector of the Eagle 3000 Eagle 4000 Solar 7000 Solar 8000 Tramscope or Centralscope 3 Make sure that all components have power on 4 Make selections desired using the Graph menu options 2 8 PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 Revision A Equipment Overview Description of Equipment Mounting You must use the PRN 50 M or PRN 50 with an optional pedestal base shown below or with an optional mounting bracket Seethe GE Medical Systems Information Technologies Monitoring Systems Mounting Reference Guide pn 403799 010 for detailed information CAUTION DoNOT operate the device without an approved mount attached The operational temperature of this device is maintained by air flow though the bottom vent holes PRN 50 M or PRN 50 with Pedestal Re
16. GRN YEL 5 6 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Upper Level Assembly Wiring Diagram Wiring Diagram 23 4 A2J3 A3P4 A3J3 i ASYNC RX _WRITERDO 34 CTRLTGH 5 ASYNC TX 22 _WRITERD1 NC WRITERWRIRQ WRITERD2 3 CTRLTGL 4 RETURN 24 _WRITERD3 5 4 4 RETURN 25 _WRITERD4 GLSML RETURN 26 WRITERDS z 6 NC gt RETURN _WRITERD6 5 NC RETURN _WRITERD7 NC RETURN 29 WRITERWE 5 6 GLSMH RETURN iG WRITERCS 4 RETURN 1 WRITER i RETURN s 32 WRITERRESET mm RETURN WRITER BUSY 4 1 15 RETURN T 43 3V 34 2 p gt ES L RETURN is 43 3V T V V 16 16 36 36 17 17 37 37 dish 18 NS 18 38 38 E 19 x 19 39 39 7 20 Ve 20 40 40 8 A3J5 A4J2 1 1 M PORT 3 3V 1 1 1 A3J3 POUT LED numb NC 3 RETURN 3 FPPWRLED 1 a RETURN 4 4 RETURN 3 TX W3P2 W3P1 4 RETU
17. M M Port and PRN 50 AutoPort Digital Writer 4 7 2006503 001 Maintenance Maintenance Schedule Second Test Pattern The second test pattern is used for checking printhead alignment speed accuracy and speed regulation duty Printhead alignment The two end most elements on the printhead are turned on to form continuous lines on the edges of the paper These lines should always be visible A light or missing lineis an indication of possible misalignment Speed accuracy The grid pattern is printed to show speed control accuracy A marker at 75mm intervals along the bottom of the strip is used for checking accuracy To verify accuracy place a 300mm ruler on thefirst 75mm marker The fifth 75mm marker should be at 300mm 6mm Speed regulation Thetriangular pattern is used to quickly check speed regulation The lines forming the triangle should be straight Any bumps in the lines would be an indication of a speed control problem Third Test Pattern This test pattern is not shown and used for production tests only 4 8 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Maintenance System Performance Test System Performance Test Procedure This part of the system performance testing is done with the PRN 50 M or PRN 50 connected toa patient monitoring system Do the following steps in the order given Setup 1 Connect a simulator to the patient monitor S
18. PRN 50 and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Interface PCB Parts List 801390 001A Parts List 801390 001A Table 10 801390 002 Parts List Description Part Number Qty Designation C1 Cap AL 22uF 20 35V 5MM Low Z 419448 001 1 C2 Cap Cer 1000 596 50V SM 411575 003 1 C3 5 6 11 14 Cap Cer 0 1uF 5 50V SM 411575 012 5 C4 8 9 10 13 Cap Cer 0 1u F 5 16V 411575 002 5 C7 Cap Tant 1001 F 10 10V SM 415802 001 1 12 Tant 10 16V SM 406883 005 1 C15 Cap Cer 0 1uF X7R 50V SM 1187 104 1 CR1 Diode Schottky Barrier 1A 40V SM MBRS140T3 403187 001 1 CR2 Diode Rectifier Schottky SM MBR0520 413970 001 1 1 2 3 4 5 6 7 Ferrite Bead BLM11A601 414061 001 7 12 Connector 45 Vertical 8 Pin 1807 005 1 13 Conn Plug 9 Pos Vert 405104 001 1 14 Conn 40P Vert Blind Mate Male 420610 001 1 5 Connector PC Header 4 Pin w Locks 406492 004 1 L1 Inductor 474 H 1 20 0 94 SM 420713 001 1 R1 Res Cer 10074 1 1 16W SM 410334 003 1 R2 4 Res Cer 33 2 1 1 8W SM 1082 788 2 R3 7 Res Cer 10K 1 1 16W SM 410334 013 2 R5 Res Cer 0 1 1 16W SM 410334 027 1 R8 Res Cer 1K 1 1 16W SM 410334 008 1 1 2 3 4 PC Post 415396 001 4 Ul Diode Array ESD Overvoltage Protection Six Pair SM 412586 002 1 U2 IC EEPROM 1 Wire 256 Bit SM 417652 002 1 U3 IC Reg LM2674 3 3 Switcher SM 42071
19. PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 Revision A
20. device under test is to be tested at its normal operating voltage Set the leakage tester power switch to ON Set the power switch of the device under test to ON Read the current leakage indicated on DMM If the reading is greater than the appropriate specification below the device under test fails and should be repaired and tested again uA 0 3 volts on the DMM and the device under test is powered from 100 120 V 50 60 Hz uA 0 3 volts on the DMM and the device under test is powered from a centered tapped 200 240 V 50 60 Hz single phase circuit uA 0 5 volts on the DMM and the device under test is powered from a non center tapped 200 240 V 50 60 Hz single phase circuit NOTE Center tapped and non center tapped circuits produce different leakage currents and the UL and IEC limits are different 7 Setthe polarity switch on the leakage tester to RVS reverse 4 14 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Maintenance Electrical Safety Tests Read the current leakage indicated DMM If the reading is greater than the appropriate specification below the device under test fails and should be repaired and tested again 300 uA 0 3 volts on the DMM and the device under test is powered from 100 120 V 50 60 Hz 300 uA 0 3 volts on the DMM and the device under test is powered from a centered tapped 200 240 V 50 60 Hz single phase c
21. earth pin in the MAINS PLUG ground pin in power cord Refer to the US 120Vac power cord figure on the left 3 Setthe Ohm meter to the milliohm range 4 12 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Maintenance Electrical Safety Tests 4 Connect the positive lead of the Ohm meter to all exposed metal surfaces on the DUT If the metal surfaces are anodized or painted scrape off a small area in a inconspicuous area for the probe to make contact with the metal 5 Resistance should read to pass 0 1 ohm less without power cord 0 2 ohms or less with power cord Impedance of Protective Earth Connection This test unlike a ground continuity test will also stress the ground system by using special ground bond testers i e Kikusui model 872 or TOS 6100 or Associated Research model Model 3030D This test normally is only required as a manufacturing production test to receive safety agency compliance 601 1 Some country agency s do require this test after field equipment repairs i e Germany s DIN VDE 0751 standards Consult your country local safety agency if in question Compliance is checked by the following steps 1 A current not less than 10A and not exceeding 25 A from a current source with a frequency of 50 or 60 Hz with a no load voltage not exceeding 6 is passed for at least 5 s through the PROTECTIVE EARTH TERMINAL or
22. procedure for testing the performance of the PRN 50 M and the PRN 50 Digital Writers Some familiarity with the PRN 50 M and the PRN 50 Digital Writers is required for this procedure Frequency Perform this procedure every three months or whenever a circuit board or other assembly is repaired or replaced Requirements Connect the PRN 50 M or PRN 50 toa patient monitoring system to complete the following steps NOTE Before plugging the PRN 50 M or PRN 50 power cord into a power receptacle verify that the power switch is OFF Always use the power switch on the back to apply power 1 Turn the PRN 50 M or PRN 50 power switch on the back panel ON 1 The DC motor should not jerk the paper and nothing should print on the paper 2 Verify the POWER indicator green LED on the front panel illuminates 3 Observe the PAPER OUT indicator yellow LED on the front panel does not illuminate If there is paper in the paper compartment the LED should illuminate briefly at start up and then extinguish If there is no paper in the paper compartment load paper in the thermal writer Press the GRAPH STOP button to aid in loading the paper 4 Press and hold the GRAPH STOP button for at least 10 seconds The writer should print out the revision of operating software currently installed on the processor PCB with the alphanumeric test pattern shown below Verify that the alphanumerics print clearly and uniform in s
23. pulling the power cord out of the wall receptacle Always use the power switch to apply remove power Always verify that the power switch is in the OFF position before removing the power cord from the wall receptacle Set the power switch to the OFF position and disconnect the equipment from its power source m Check all power and interface cables to make sure they are firmly connected There should be no excessive tension on any of the cables nor should any of them be showing any signs of excessive wear m Check rear connector of the module for foreign debris or crushed connections m Check the power cord on the host equipment Verify that the line neutral and ground wires are all connected firmly to the plug and that they are not shorted together See wall receptacle check found in Electrical Safety Tests of the appropriate patient monitor service manual Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 3 3 2006503 001 Troubleshooting General Controlling Electrostatic Discharge Damage All external connector inputs and outputs of the device are designed with protection from ESD damage However if the device requires service exposed components and assemblies contained within are susceptible to ESD damage This includes human hands non ESD protected work stations and or improperly grounded test equipment The following guidelines will help make a service workstation more resistant to the ESD damage D
24. the source must be a center tapped 240V single phase circuit 1 4 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Introduction Safety Information Equipment Symbols The following symbols appear on the transmitter ATTENTION Consult accompanying documents before using the equipment Power switch ON Fuse E quipotentiality Alternating current AC Warnings Cautions and Notes Warnings and Cautions are used throughout this manual to designate a degree or level of hazardous situations Hazard is defined as a source of potential injury to a person WARNING A warning indicates a potential hazard or unsafe practice which if not avoided could result in death or serious injury CAUTION A caution indicates a potential hazard or unsafe practice which if not avoided could result in minor personal injury or product property damage NOTE A note provides application tips or other useful information to assure that you get the most from your equipment Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 1 5 2006503 001 Introduction Service Information Service Information Service Requirements Follow the service requirements listed below m Refer equipment servicing to Information Technologies authorized service personnel only m Any unauthorized attempt to repair equipment under
25. warranty voids that warranty m tis the user s responsibility to report the need for service to GE Medical Systems Information Technologies or to one of their authorized agents m Failure on the part of the responsible individual hospital or institution using this equipment to implement a satisfactory maintenance schedule may cause undue equipment failure and possible health hazards wm Regular maintenance irrespective of usage is essential to ensure that the equipment will always be functional when required Equipment Identification Every GE Medical Systems Information Technologies device has a unique serial number for identification The serial number appears on the product label for each unit D 1XX 0005 G XX Month Product Sequence Manufactured Manufactured Product Code Number Division Device Characteristics anuary 1 2001 Two character Manufacturing F Cardiology 2 letters that further February 2 2002 product descriptor number oftotal G Monitoring describe the unit for example C March 3 2003 units J G W Labs prototype not conforming to D April and so on manufactured marketing specification E May refurbished equipment F une 5 special product documented G J uly under Specials part numbers August U upgraded unit J September K 0ctober L November M December Warranty 1 year 1 6 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 20
26. 06503 001 2 Equipment Overview Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 2 1 For your notes 2 2 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Equipment Overview Description of Equipment Description of Equipment PRN 50 M and PRN 50 Digital Writers The PRN 50 M and PRN 50 Digital Writers thermally record patient data on a paper strip You can graph any parameter or trace you monitor on a Solar 7000 8000 8000M monitor Eagle 4000 monitor Centralscope or CIC system on the the writer Graphs are initiated automatically when an alarm activates or you can manually initiate a graph froma monitor The writer provides a high resolution recording of patient waveform data including alphanumeric text relating to the waveform data A microprocessor driven thermal print head translates digitized data directly into graphic forms on the strip chart Up to four real time waveforms from the monitor screen may be graphed simultaneously The writer also generates printouts of stored information including trended parameters arrhythmia information and cardiac calculations pulmonary calculations and dose calculations The paper drive motor is the only moving part on the PRN 50 M This motor operates at eight different speeds 0 1 0 5 1 5 10 12 5 25 and 50 mm s PRN 50 and PRN 50 Digital Writer Revision A PRN 50 M M Port
27. 074 1 1 16W SM 410334 003 1 R2 4 Res Cer 33 2 1 1 8W SM 1082 788 2 R3 7 Res Cer 10K 1 1 16W SM 410334 013 2 R5 Res Cer 0 1 1 16W SM 410334 027 1 R8 Res Cer 1K 196 1 16W SM 410334 008 1 1 2 3 4 PC Post 415396 001 4 Ul Diode Array ESD Overvoltage Protection Six Pair SM 412586 002 1 U2 IC EEPROM 1 Wire 256 Bit SM 417652 002 1 U3 IC Reg LM2674 3 3 Switcher SM 420714 001 1 U4 IC Transceiver MAX3221 419512 001 1 U5 Line Driver Dual SM 9638 407884 001 1 U6 AND Gate 2 Input Quad TC7S 08F 409035 001 1 U7 Isolator Optically Coupled SM 2602 407164 001 1 U8 Volt Rgltr Pos 5V 700mA SM 78 05 412613 001 1 VR1 2 Diode 600W 15V SM 405485 001 2 VR3 Diode Transient Voltage Suppressor 5V 600W P6SMB6 8AT1 403189 001 1 Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 6 7 2006503 001 Interface PCB Parts Location Diagram 801390 002 Parts Location Diagram 801390 002A Top View ARQUETTE EDICAL s EBL TE a3 d E Ul So RE b A a E oR2 ee 146 C5 Za 8 55 8 520 9 006 Feo 10127 5 oor 88 008426 R7 35 lt us E E RETI I 1 4 gt 2 1P3 Bottom View E J3
28. 2 transmit 4 RETURN Power Input RS 232 signal common 5 DEVICE ID TTL Bi directional Device identification 6 RX RS 232 Input RS 232 receive 7 NC 8 NC Table 8 Power Connector J5 Pin Signal Name Level Direction Description 1 Power Input input positive supply 2 WV Power Input input positive supply 3 RETURN Power Input input return supply 4 RETURN Power Input input return supply 6 6 PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 Revision A Interface PCB Parts List 801390 002A Parts List 801390 002A Table 9 801390 002 Parts List Description Part Number Qty Designation C1 Cap AL 22u F 20 35V 5MM Low 2 419448 001 1 C2 Cap Cer 1000pF 596 50V SM 411575 003 1 C3 5 6 11 14 Cap Cer 0 1uF 5 50V SM 411575 012 5 C4 8 9 10 13 Cap Cer 02 5 16V 411575 002 5 C7 Cap Tant 1001 F 10 10V SM 415802 001 1 12 Tant 10 16V SM 406883 005 1 C15 Cap Cer 0 1uF X7R 50V SM 1187 104 1 CR1 Diode Schottky Barrier 1A 40V SM MBRS140T3 403187 001 1 CR2 Diode Rectifier Schottky SM MBR0520 413970 001 1 FBI 2 3 4 5 6 7 Ferrite Bead BLM11A601 414061 001 6 12 Connector 45 Vertical 8 Pin 1807 005 1 13 Conn Plug 9 Pos Vert 405104 001 1 14 Conn 40P Vert Blind Mate Male 420610 001 1 5 Connector PC Header 4 Pin w Locks 406492 004 1 L1 Inductor 474 H 1 20 0 94 SM 420713 001 1 R1 Res Cer 10
29. 4 001 1 U4 IC Transceiver MAX3221 419512 001 1 U5 Line Driver Dual SM 9638 407884 001 1 U6 AND Gate 2 Input Quad TC7S 08F 409035 001 1 U7 Isolator Optically Coupled SM 2602 407164 001 1 U8 Volt Rgltr Pos 5V 700mA SM 78 05 412613 001 1 VR1 2 Diode 600W 15V SM 405485 001 2 VR3 Diode Transient Voltage Suppressor 5V 600W P6SMB6 8AT1 403189 001 1 6 12 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Interface PCB Parts Location Diagram 801390 001A Parts Location Diagram 801390 001A Top View ARQUETTE EDICAL s FBL 5781 EM Ul So RE b A a E oR2 90 o C5 Za 8 8 520 3 m 5 2 gen gi o DOCE 260505 Cid p u8 22 lt DEG U m ar TP3 G Bottom View E J3 i Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 6 13 2006503 001 Interface PCB Schematic Diagram 50801390 001 Schematic Diagram 50801390 001 Sheet 1 of 3 a 2 8 2558 32 ese 2 z E d ven ee Sak 274 P E RC 522858 R5R55 ds
30. CBs provide power distribution and interconnection for the PRN 50 M and PRN 50 Digital Writers Two host interfaces are provided for Usethe RS 232 M Port or AutoPort interface with newer hosts An RS 422 interface is provided to maintain compatibility with the 7160 DDW All hosts that connect to the 7160 DDW can connect to the PRN 50 M and PRN 50 All the necessary supply voltages for the PRN 50 M and PRN 50 are generated and distributed on this board A serial EEPROM is used to store the necessary identification information 3 3V Converter RS 232 Tranceiver J4 KCPU PCB RS 422 Tranceiver Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 6 3 2006503 001 Interface PCB General 3 3V Switching Regulator Circuit The 4V power source uses a LM2674 step down buck regulator to generate a 3 3VDC logic supply This board and the 801406 001 CPU board uses this 3 3VDC logic supply The LM 2674 series operates at switching frequency of 260 7 with a typical efficiency of 86 The LM 2674 contains an internal FET switching at 260kHz which when turned on drives an increasing current from Vin pin 7 through the inductor L1 to the output capacitor C7 and to the load Energy is stored the inductor as the current increases with time When the FET switch turns off the collapse of the magnetic field in L1 forces current to flow through the catch diode CR1 char
31. M P ort 2 Connectthe other end ofthe cable into any available M Port RJ 45 connectors on the front of the Solar 8000M labeled M1 M2 M3 or M4 Make sure that all components have power on Make selections desired using the Graph menu options w With the PRN 50 writer which has the AutoP ort interface 1 Place an AutoPort to M Port Adapter into the RJ 45 connector on the PRN 50 labeled AutoP ort Connect one end of an 45 cable into the RJ 45 connector in the AutoP ort to M Port Adapter which was inserted into the PRN 50 connector labeled AutoPort in step 1 Connect the other end of the cable into any available RJ 45 connectors M Ports on the front of the Solar 8000M labeled MT M2 M3 or M4 4 Make sure that all components have power on 5 Make selections desired using the Graph menu options Octanet Connectivity Device With the PRN 50 M writer which has the M Port interface 1 Place an AutoP ort to M P ort Adapter into one of the RJ 45 connectors AutoPorts on the front of the Octanet Connectivity Device 2 Connect one end of an RJ 45 cable into the RJ 45 connector on the PRN 50 M labeled M P ort 3 Connect the other end of the RJ 45 cable into the AutoP ort to M P ort Adapter inserted into the Octanet Connectivity Device 8 45 in Step 1 4 Make sure that all components have power on 5 Make selections desir
32. POWER CORD LOW o wi GND DEVICE E 5 RVS UNDER TEST 6 27 GND M D MEASURING Probe to exposed conductive chassis DEVICE Test Completion Disconnect all test equipment from the device Disconnect the device power cord plug from the leakage tester power receptacle Disconnect the leakage tester from the wall receptacle 4 16 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 D Upper Level Assembly Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 5 1 Upper Level Assembly For your notes 5 2 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Upper Level Assembly General General Upper Level This section provides identification and ordering information for the upper level assembly replacement parts of the PRN 50 M and PRN 50 Digital Writers Circuit board parts placement and schematic diagrams are found in the next section of this manual CAUTION This assembly is extremely static sensitive and should be handled using the precautions described in Controlling Electrostatic Discharge Damage on page 3 4 of this manual Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 5 3 2006503 001 Upper Level Assembly Parts List 418331 001B Parts List 418331 001B Table 1 Upper Level Parts List Item Description P
33. PRN 50 and PRN 50 AutoPort Digital Writer Service Manual 2006503 001 Revision A GE Medical Systems Information Technologies cara Due to continuing product innovation specifications in this manual are subject to change without notice Trademarks Listed below are GE Medical Systems Information Technologies trademarks All other trademarks contained herein are the property of their respective owners 900 SC ACCUSKETCH AccuVision APEX AQUA KNOT ARCHIVIST Autoseq BABY MAC Qwik Connect CardioServ CardioSmart CardioSys CardioWindow CASE CD TELEMETRY CENTRA CHART GUARD CINE 35 CORO COROLAN COROMETRICS Corometrics Sensor Tip CRG PLUS DASH Digistore Digital DATAQ E for M EAGLE Event Link FMS 101B FMS 111 HELLIGE IMAGE STORE INTELLIMOTION IQA LASER SXP MAC MACTRODE MANAGED USE MARQUETTE MARQUETTE MAC MARQUETTE MEDICAL SYSTEMS MARQUETTE UNITY NETWORK MARS MAX MEDITEL MEI MEI the circle logo MEMOPORT MEMOPORT C MINISTORE MINNOWS Monarch 8000 MULTI LINK MULTISCRIPTOR MUSE MUSE Neo Trak NEUROSCRIPT OnlineABG OXYMONITOR Pres R Cuff PRESSURE SCRIBE QS Quantitative M edicine Quantitative Sentinel RAMS RSVP SAM SEER SILVERTRACE SOLAR SOLARVIEW Spectra 400 Spectra Overview Spectra Tel ST GUARD TRAM TRAM NET TRAM RAC TRAMSCOPE TRIM KNOB Trimline UNION STATION UNITY logo UNI
34. PRN 50 assembly The two screws remain in the assembly CAUTIONS To avoid doing possible damage to the thermal print head access the screws through the two slots in the paper carriage door Always hold the writer and bezel together to avoid putting strain on the flex cable and front panel membrane 3 Lift up on the flex cable connector latch and disconnect the flex cable from the back of the writer Pull the writer straight forward from the front bezel 5 Return removed 2 inch thermal writer to GE Medical Systems Information Technologies 3 6 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Troubleshooting General Reassembly Toreplace the thermal writer assembly refer to Writer Replacement Illustrations on page 3 8 do the following Slide the new thermal writer straight into the front bezel F eed the flex cable through the opening in the PCB and press the release latch on the flex connector to lock the cable in place 3 Slightly tug on the flex cable to confirm that the connector has latched 4 Carefully slide the two halves of the PRN 50 M PRN 50 back together open the paper carriage door and tighten the two screws CAUTION DoNOT overtighten the screws Overtightening the screws could cause damage to the PRN 50 M or PRN 50 Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 Troubleshooting General
35. RN A2J1 g DEVICEID SW1J1 4 AC LINE 6 NC 2 W2E1 8 NC W2P1 Ac NEUTRAL AUTOPORT PRN 50s have either an M Port or W2E2 an AutoPort They do not have BOTH ft Revision PRN 50 M Port and PRN 50 AutoPort Digital Writer 2006503 001 Upper Level Assembly Packaging Packaging PACKAGING DETAIL NOTE PLACE FINISHED UNIT IN FOAM INSERTS AS SHOWN ANY ACCESSORIES SHOULD BE PLACED INSIDE THE TWO CARDBOARD INSERTS IF SPACE PERMITS WHEN A PEDESTAL KIT IS INCLUDED DO NOT PLACE OTHER ACCESSORIES INSIDE THE SAME INSERT 5 8 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Interface PCB Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 6 1 Interface PCB For your notes 6 2 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Interface PCB General General The purpose of the 801390 002 PRN 50 M and 801390 001 PRN 50 Interface PCBs is to provide power distribution and interface electronics for the PRN 50 M and PRN 50 Digital Writers CAUTION This assembly is extremely static sensitive and should be handled using the precautions described in Controlling Electrostatic Discharge Damage on page 3 4 of this manual Theory The 801390 002 PRN 50 M and 801390 001 PRN 50 Interface P
36. SOVUVIOUIIN NI n SINIYA 32NVIDVdV2 11v 8 M9T T SWHO st SINIYA 32NVISIS3U 119 JAILJY XSIH31SV NV 031N3S38d38 NSIS30 ONY SIHl o3sn LON 035 15 1 o 3 401104 S3WYN YNSIS NY TVILNSGLINOO 1 530 338 03112345 351 3 10 5531 Nuniau if 1538183 96 8 91434 1 5155 2 1198 0136 Nuniau sl oor d ET Nuniau Nanay DN A 51 ase anzz OND 440 1 6 9 PRN 50 M Port PRN 50 AutoPort Digital Writer 2006503 001 A ision Rev Schematic Diagram SD801390 002A Interface PCB Sheet 2 of 3 AVNIDIUO 0 2 E 40 2 13385 01 A9T3 v 540129492 11 00 06ET080S S vuv4OuJIM NI nva 38 SINIYA 3oNviDvavo 11 M9T T SWHO NI 32V3U31NI LYOd W W 0S NYd W3HIS SINIYA JONVISIS3H 1V 3AnDv 38v 5193159 A90IONHO3I NOLLVWGIOANI SWGLSAS IVOIGGW er gt ST09VITW18 8 03401104 S3AVN 1 915 11 031412345 3SIMu3HL0 5531 3805121 LYOd W if 1538 1 3 96 8 91434 5155 2 T AST nA AST DV A avian 4 Nanay jm M ST09VITW18
37. TIONS To avoid doing possible damage to the thermal print head access the screws through the two slots in the paper carriage door Always hold the writer and bezel together to avoid putting strain on the flex cable and front panel membrane Interface PCB Disconnect the cable at J5 on the Interface PCB Remove the three mounting screws and remove the Interface PCB Remove the two jackscrews from the Asyne Comm connector on the back of the assembly 6 Install the new Interface PCB and reverse the above procedure to reassemble the writer NOTE The Interface PCB requires no adjustments 7 Return the removed Interface PCB Information Technologies Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 3 11 2006503 001 Troubleshooting General Completion Replace power cord to unit 2 Toverify the operation of the PRN 50 M or PRN 50 complete the System Performance Test on page 4 9 3 Becausethe thermal writer was replaced perform the Ground Earth Wire Leakage Current Tests on page 4 14 and the Enclosure Leakage Current Test on page 4 15 3 12 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 4 Maintenance Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 4 1 Maintenance For your notes 4 2 PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 Revision A Ma
38. TY NETWORK Vari X Vari X Cardiomatic VariCath VARIDEX VAS and Vision Care Filter are trademarks of GE Medical Systems I nformati on Technologies registered in the United States Patent and Trademark Office 12SL 15SL Access AccuSpeak ADVANTAGE BAM BODYTRODE Cardiomatic CardioSpeak CD TELEMETRY LAN CENTRALSCOPE Corolation EDIC EK Pro Event Link Cirrus Event Link Cumulus Event Link Nimbus HI RES ICMMS IMAGE VAULT IMPACT wf INTER LEAD IQA LIFEWATCH Managed Use MARQUETTE PRISM MARQUETTE 9RESPONDER MENTOR MicroSmart MMS MRT MUSE CardioWindow NST PRO NAUTILUS gt 5 Octanet OMRS PHi Res Premium Prism QUIK CONNECT V QUICK CONNECT QT Guard SMART PAC SMARTLOOK Spiral Lok Sweetheart UNITY Universal Waterfall and Walkmom are trademarks of GE Medical Systems Information Technologies Medical Systems Information Technologies 2001 All rights reserved T 2 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 23 March 2001 Contents 1 Introduction 22 25 1 1 Manual Information 1 3 Revision History rt e e ea ease Et n 1 3 Purpose Of ser r t AR PU Ro ere RE MEE 1 3 Safety Information 1 4 Responsibility of the 1 4 Inte
39. and PRN 50 AutoPort Digital Writer 2 3 2006503 001 Equipment Overview Description of Equipment Controls A POWER indicator illuminates when power is applied and a PAPER OUT indicator illuminates when you need to add paper or the paper carriage door is open If you press the GRAPH STOP switch while graphing the writer stops immediately If you hold the switch down more than 10 seconds an alphanumeric test strip prints out POWER Indicator PAPER OUT Indicator GRAPH STOP Button Front Panel Controls Interconnection M Port AutoPort Compatibility 1 M Port Host Device must be connected to port Device H ost 2 If an AutoPort Host Device is to be connected to an M Port Device Host the AutoPort Host Device must be adapted to an M Port pin out by using the AutoPort to M Port Adapter NOTE Whether a host or device implements an M Port or an AutoPort interface can be determined by 1 M Port Host Device products have any or all of the following a Have the word M Port or M e g M1 M2 M3 for the connector name on the label above the RJ 45 b Havethetext for the name of the RJ 45 connector in a yellow field c Havea product namethat ends in an M eg Solar 8000M PRN 50 M Respiratory Mechanics M 2 AutoPort Host Device products do not have any of the above 2 4 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Equipme
40. art Number Qty 1 Fuse 800 MA Time Lag 5x20MM 409801 003 2 2 Plug MC Equipotential 400040 001 1 3 Washer Lock Serrated F M6 400041 001 1 4 Screw 4 7 10 Sems 411061 001 1 5 Nut M3 5 Class 8 Zp 411323 001 2 6 Washer Lock M3 Ext Tooth 412048 001 1 7 J ackscrew 4 40 18 W Vibratite 412302 001 2 8 Screw PH x 6MM 45209 306 7 10 Clamp Cable 415363 001 1 11 Housing PRN50 417828 001 1 12 Membrane Front Panel PRN50 1 417921 001 1 13 Bezel Qube Non Shielded 417980 003 1 14 Pwr Sply 15V 40W Open Frame A4 418966 001 1 18 Harness PS PWR Mdl 2A W2 419573 001 1 19 Harness PS Main PCB Rac 2A W3 419574 001 1 20 Choke Assy 6 5 LG W1 419575 002 1 21 Thermal Printer 50MM CS2 A2 419743 002 1 22 AC Inlet Module Conn SW Dual FZ SW1 420205 001 1 23 PCB PRN 50 M M Port Interface 801390 002 1 See Parts List 801390 002A on page 6 7 PCB PRN 50 AutoP ort Interface 801390 001 1 See Parts List 801390 001A on page 6 12 24 Packaging Carton Cube 411516 002 0 25 Packaging Foam Cube 421208 001 0 26 Carton Accessory Reverse Tuck 421208 002 0 27 Lable Blank 2 6 IN x 4 IN 404525 006 1 28 Paper Sample 9402 046 24 Case 4919 001 1 29 MNL SVCE 50 M English 2006503 001 AIR 5 4 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Upper Level Assembly Exploded View Exploded View 3903 JHL WW 072 AT3LVWIXOSddV NOILISOd
41. complies with the requirements of the appropriate regulations and m thedeviceis used in accordance with the instructions for use Intended Use Follow the directives stated below when using the PRN 50 M Digital Writer m Thisdeviceisintended for use under the direct supervision of a licensed health care practitioner This deviceis not intended for home use m Federal law restricts this device to be sold by or on the order of a physician m Contact GE Medical Systems Information Technologies for information before connecting any device to the equipment that is not recommended in this manual m Parts and accessories used must meet the requirements of the applicable 601 series safety standards and or the system configuration must meet the requirements of the EC 60601 1 1 medical electrical systems standard m Periodically and whenever the integrity of the device is in doubt test all functions m Theuseof ACCESSORY equipment not complying with the equivalent safety requirements of this equipment may lead toa reduced level of safety of the resulting system Consideration relating to the choice shall include useoftheaccessory the PATIENT VICINITY and evidence that the safety certification of the ACCESSORY has been performed in accordance to the appropriate 60601 1 and or 60601 1 1 harmonized national standard m Iftheinstallation of the equipment in the USA will use 240V rather than 120V
42. ed using the Graph menu options With the PRN 50 writer which has the AutoP ort interface 1 Connect one end of the RJ 45 cable into the RJ 45 connector in the PRN 50 connector labeled AutoP ort 2 Connect the other end of the RJ 45 cable into any available RJ 45 connectors AutoP orts on the front of the Octanet Connectivity Device 3 Make sure that all components have power on 4 Make selections desired using the Graph menu options PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 2 7 Equipment Overview Description of Equipment Table 4 Connection of a PRN 50 M PRN 50 to a Monitor Host Instructions Cl With the PRN 50 writer which has the M Port interface 1 Place an CIC DB9F to PRN 50 M RJ 45 Adapter on the 0 9 serial port connector of the CIC Connect one end of an 45 cable into the RJ 45 connector on the PRN 50 M labeled M P ort Connectthe other end of the RJ 45 cable into the RJ 45 connector in the adapter attached to the CIC in Step 1 Make sure that all components have power on Make selections desired using the Graph menu options N R With the PRN 50 writer which has the AutoP ort interface 1 Connect the RJ 45 end of the FEMALE 089 TO MALE RJ 45 cable into the RJ 45 connector the PRN 50 connector labeled AutoP ort Connectthe other end ofthe FEMALE
43. f the paper compartment and close the door Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 4 9 2006503 001 Maintenance System Performance Test Test System Communications Press any graph key on the monitor The output should be similar to that shown below Verify that the grid is present and that the patient data and other information including the date are legible MANUAL VCCU 969 SMITH JOHN CCUROOM234B 16 MAE 13 29 59 ALM VOL OFF 925 MM S HR ARR FULL PVC ST AVL 0 0 05 120Hz NBP X X OO 137 74 95 RATE B9 SPO2 96 RATE 70 RR 20 TP1 Tt 4 1 2 Fault Mode If the printer stops graphing and the green Power LED starts flashing m themotor may have stalled m theprinthead may have overheated or m the printhead voltage is out of specification The green Power LED then continues to flash until the next graph when it reverts to a steady on state Completion If the above conditions have been met the PRN 50 M PRN 50 15 performing properly 4 10 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Maintenance Electrical Safety Tests Electrical Safety Tests General Recommendations Test Conditions Electrical safety tests provide a method of determining if potential electrical health hazards to the operator of the device exist To help you establish a systematic maintenance routine GE M edical S
44. ge indicated on DMM If the reading is greater than the appropriate specification below the device under test fails and should be repaired and tested again 300 uA 0 3 volts on the DMM and the device under test is powered from 100 120 V 50 60 Hz 300 uA 0 3 volts on the DMM and the device under test is powered from a centered tapped 200 240 V 50 60 Hz single phase circuit 500 0 5 volts on the DMM and the device under test is powered from a non center tapped 200 240 V 50 60 Hz single phase circuit NOTE Center tapped and non center tapped circuits produce different leakage currents and theUL and IEC limits are different 5 Setthe polarity switch to RVS and observe the same meter readings as in the previous step Set the GND switch on the leakage tester to CLOSED Read the current leakage indicated DMM If the reading is greater than the appropriate specification below and the device under test is powered from 100 240 V 50 60 Hz the device under test fails and should be repaired and tested again 100 microamperes 0 1 volts on the DMM and the device under test is powered from 100 240 V 50 60 Hz 8 Setthe polarity switch to RVS and observe the same meter readings as in the previous step 9 Set the leakage tester power switch to OFF and remove the meter lead connected in step 2 LEAKAGE TESTER PARTIAL SCHEMATIC HIGH
45. ging C7 The output capacitor C7 is low ESR capacitor used to filter the output voltage 5VDC Linear Regulator A 5VDC supply is generated from the V power source using a 78M05 DPAK linear regulator This supply if used by the RS 422 interface circuitry Serial EEPROM The serial EEPROM stores the identification information required for all AutoPort devices The EEPROM control address data and power areall handled by one pin After the unit has been assembled the unit type number and model number are programmed into the EEPROM The following is the type number and the various model numbers Table 2 Type Number Device Type device_mms_print 11 Table 3 Model Number Unit Model device_mms_print_prn50 1 RS 422 Transceiver The RS 422 transceiver is used to convert the CPU transmitted data from 43 3V logic levels to RS 422 levels and convert the received RS 422 data from the host to 3 3V logic levels The transceiver contains optically isolated receiver and one transmitter and requires a 5VDC supply RS 232 Transceiver M Port The RS 232 transceiver is used to convert the CPU transmitted data from 3 3V logic levels to RS 232 logic levels and convert the received RS 232 data from the host to 3 3V logic levels The transceiver contains one receiver and one transmitter and only requires a single supply and four external capacitors 6 4 PRN 50 M M Port and PRN 50 AutoPor
46. hanical and other specified UL US hazards only in accordance with UL 2601 1 CAN CSA C22 2 No 601 1 IEC 60601 1 and if required 60601 2 27 EC 60601 2 30 I EC 60601 2 34 60601 1 1 Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2 11 2006503 001 Equipment Overview Technical Specifications For your notes 2 12 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 3 Troubleshooting Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 3 1 For your notes 3 2 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Troubleshooting General General Troubleshooting the Components This section contains information that may be useful when you troubleshoot the PRN 50 M and PRN 50 Digital Writers Visual Inspection This visual inspection procedure looks for obvious problems in the equipment Simple failures disconnected cables foreign debris on a printed circuit board or even missing hardware can seriously affect the operation These simple failures can appear to be completely different problems to the user or repair technician making the troubleshooting process very difficult The following steps might seem trivial but we highly recommended that you perform them to remove these simple failures as causes of problems in the equipment m Never turn off host equipment by
47. he operation of the PRN 50 M or PRN 50 complete the System Performance Test on page 4 9 3 Becausethe thermal writer was replaced perform the Ground Earth Wire Leakage Current Tests on page 4 14 and the Endosure Leakage Current Test on page 4 15 3 10 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Troubleshooting General Interface PCB Replacement Procedure This procedure details the removal and replacement of the nterface PCB assembly in the PRN 50 M and PRN 50 CAUTION To control static discharge damage be sure to discharge any static charge you may have built up before starting procedure Wear a grounded antistatic strap and use grounded test equipment Perform this procedure in the order listed 1 Turn the ON OFF switch at back OFF Always use the OFF switch to apply power Remove the power cord from unit 2 Disconnect the PRN 50 M or PRN 50 from the patient monitor and communication network if applicable Disassembly To access to the power supply assembly refer to the illustrations on the previous page and dothe following 1 Openthe writer door and locatethe two Phillips screws inside at back of paper roll compartment 2 Fully loosen the two captive screws separate the two halves of the PRN 50 assembly and carefully set the writer and front bezel assembly aside The two screws are retained in the assembly CAU
48. ial Equipment Item Part Number Leakage Current Tester 120 V or equivalent MT 1216 01 240 V or equivalent MT 1216 02 Multimeter E Before starting the tests the wall receptade from which the device will get electrical power must be checked This test checks the condition of the wall receptacle to ensure correct results from leakage tests For international wall receptades refer to the internal standards agencies of that particular country Use a digital multimeter to ensure the wall receptacle is wired properly If other than normal polarity and ground is indicated corrective action must betaken before proceedi ng Theresults of the following tests will be meaningless unless a properly wired wall receptade is used Ground Earth Integrity Ground Continuity Test Listed below are two methods for checking the ground earth integrity Ground Continuity Test and I mpedance of Protective E arth Connection These tests determine whether the device s exposed metal and power inlet s earth ground connection has a power ground fault condition Perform the test method below that is required by your Country L ocal governing safety organization Completion of this test is checked by the following steps 1 Disconnect the DUT device under test from the wall receptacle 2 Connect the negative lead of the ohm meter to the protective earth terminal ground pin in power in let connector or the protective
49. imulate a patient s ECG on the display Refer to the appropriate user manual 2 Depress any graph button and verify that the PRN 50 M or PRN 50 is printing the same information displayed on the CRT monitor Test Speeds and Header Information 1 Change the speed of the graph on the monitor through all eight speeds Verify that the PRN 50 M or PRN 50 operates at the speed indicated on the monitor Graph a complete header of one ECG waveform for the 25 50 and 12 5 mm s speeds 2 Examinethe header verifying that the printed information is correct and legible Test PAPER OUT Indicator You need a short length of paper for this part of the test 1 Open the paper compartment 2 Check that there is no debris blocking the paper sensor 3 Turn the roller counterclockwise until approximately 12 inches of paper are available Tear paper near the roller releasing a 12 inch strip from the full roll Wrap the 12 inch strip back around the full paper roll F eed 4 inches out of the paper compartment and close the door Now Press the graph button the monitor until the 12 inches of paper runs out Three things should happen ThePRN 50 M or PRN 50 should stop printing before the last of the paper leaves the door slot ThePAPER OUT yellow LED should illuminate When graph is attempted at the monitor a NO PAPER message should display on the monitor CRT 8 Reload the full paper roll and feed 4 inches out o
50. intenance Maintenance Schedule Maintenance Schedule General An effective maintenance schedule should be established for the PRN 50 M and PRN 50 Digital Writers The schedule should include inspection general cleaning performance testing and safety testing on a regular basis It is recommended that you perform the inspection general cleaning and cleaning of the print head every three months It is recommended that you perform safety tests every twelve months or if any internal components have been altered For the purpose of record keeping a Preventive Maintenance Inspection form is provided at the end of this chapter for duplication WARNING A failure on the part of the responsible individual hospital or institution employing the uses of this monitoring equipment to implement a satisfactory maintenance schedule may cause undue equipment failure and possible health hazards Inspection Inspect the PRN 50 M or PRN 50 on a regular basis Follow these guideline when you inspect the equipment m Inspect the equipment for obvious physical damage and replace damaged items m inspect all connectors for bent pins or prongs Replace or repair any bad cables or connectors Note that replacement of connectors should be performed only by qualified service personnel m Inspect all cable insulation Qualified service personnel should repair or replace damaged or deteriorated cables Inspect fuses m Inspec
51. ircuit 500 0 5 volts on the DMM and the device under test is powered from a non center tapped 200 240 V 50 60 Hz single phase circuit NOTE Center tapped and non center tapped circuits produce different leakage currents and theUL and IEC limits are different 9 Settheleakagetester power switch to OFF LEAKAGE TESTER PARTIAL SCHEMATIC a HIGH 1 NORM POWER CORD LOW 8 GND EN amp DEVICE UNDER RYS TEST GND M D MEASURING DEVICE NOTE The MD measuring device is the circuitry defined by the appropriate standard for measuring leakage current The measuring devices defined by various standard organizations IEC UL etc produce almost identical test measurement results Enclosure Leakage Current Test Perform this test to measure current leakage through exposed conductive surfaces on the device under test during normal operation Set the leakage tester switches as follows Selector knob 2 GND switch OPEN Polarity switch NORM 2 Connect a meter lead between the CHAS connector on the rear of the leakagetester and an unpainted non anodized chassis ground on the unit under test 3 Settheleakagetester power switch to ON Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 4 15 2006503 001 Maintenance Electrical Safety Tests 4 Read the current leaka
52. ischarge any static charge you may have built up before handling semiconductors or assemblies containing semiconductors m A grounded antistatic wristband 3M part number 2046 or equivalent or heel strap should be worn at all times while handling or repairing assemblies containing semiconductors Use properly grounded soldering and test equipment Use static free work surface 3M part number 8210 or equivalent while handling or working on assemblies containing semiconductors Donot remove semiconductors or assemblies containing semiconductors from antistatic containers Velo stat bags until absolutely necessary m Make sure power to assembly is turned off before removing inserting a semiconductor wm Donot slide semiconductors or electrical electronic assemblies across any surface Do not touch semiconductor leads unless absolutely necessary m Semiconductors and electrical electronic assemblies should be stored only in antistatic bags or boxes These guidelines may not guaranty a 100 static free workstation but will greatly reduce the potential for failure of any electrical electronic assemblies 3 4 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Troubleshooting General Fuse Re lacement The fuse drawer on the PRN 50 M contains two metric fuses pn 409801 003 ollow these steps to replace the fuses 1 Place the power switch on the power entry module the OFF
53. ize and contrast If the printing is not uniform clean the printhead and try again If the printer still fails call GE Medical Systems Information Technologies for service So PREND BCS GRAPH ud SLA LEE SAI au bi a Giga 284 2701 234 ISTRRI BAR DEFGHT JE L V shod phe LRL bhp b pig 4 12 Po ee 4 6 PRN 50 M M Port and PRN 50 AutoPort Digital Writer Revision A 2006503 001 Maintenance Maintenance Schedule Print Quality After the alphanumerics print continue to hold the GRAPH STOP button until the first test pattern is visible then release A series of three test patterns follow to allow you to check the print quality Tostop the test pattern at any time cycle the power by turning the power switch off and then back on Pressing the GRAPH STOP button while thetest pattern is running only changes the paper speed First Test Pattern The first test pattern is used to check the roller for flat spots and other irregularities With this test the pattern you should see a uniform gray background with no light spots or gaps Check the roller for dirt or damage if this test fails
54. nded Use eie Arta etes Ax to A d e qa 14 Equipment S eec o ena 1 5 Warnings Cautions and Notes 1 5 Service Information 1 6 Service Requirements 1 6 Equipment Identification 1 6 1 6 2 Equipment 2 1 Description of 2 3 PRN 50 M and PRN 50 Digital Writers 2 3 ce oW oa o oc AC PR RR E Pea 2 4 Interconnection iu po supr 2 4 MOUNINO Ep uS 2 8 Technical Specifications 2 9 Certification 2 10 185511 0116 2 2 10 3 Troubleshooting 3 1 General RE 3 3 Troubleshooting the Components 3 3 Controlling Electrostatic Discharge Damage 3 4 Thermal Writer Replacement Procedure 3 6 Power Supply Replacement Procedure 3 9 Interface PCB Replacement Procedure 3 11 Revision A PRN 50 M M Port and PRN
55. nt Overview Description of Equipment Device Connections Below are figures of device connections using the Octanet connectivity device and using the Tram net nterface Adapter Refer to Connection of a PRN 50 M PRN 50 to a on page 2 7 for connection instructions gt 0000000 0000000 59 momo ec L M Port connector M Port connector M Port connectors on RM M cardiac package basic software package 8000M M Ports 9 025A RM M Module Connected to Patient Monitor via Octanet Connectivity Device with M Port to AutoPort Adapter Serial Port 9 Serial Port CIC to PRN 50 M Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2 5 2006503 001 Equipment Overview Description of Equipment Solar 8000 to PRN 50 M ASYNC Port Power Switch Table 2 Host to PRN 50 M PRN 50 Connections Hosting Device PRN 50 M PRN 50 Interconnection Between Host and Writer Monitor Octanet Connector Type Connector Protocol Adapter Cable Used Central Station Used yp Used Note 1 Needed Part Where Placed Solar 8000M RJ 45 PRN 50 8 45 418335 00 M1 M4 PRN50
56. rt Digital Writer Revision A 2006503 001 Maintenance Maintenance Schedule Cleaning the Print Head This procedure explains how to clean the thermal print head From heavy usage debris accumulates on the thermal print head and distorts the printed image It is recommended that you perform this procedure when necessary depending on usage Materials Required A nonabrasive material cloth and isopropyl alcohol are all that are necessary to perform this procedure Procedure Printhead Perform this procedure in the order listed 1 Turn the switch at the back of the unit to the off position and disconnect the power cord from the mains source Open the writer door to expose the print head Remove paper roll Locate the print head shown in the figure at the left A flashlight may help illuminate the print head for closer examination 5 Wipethe print head with alcohol and a nonabrasive material cotton swab a side to side motion Continue wiping until the cloth swab wipes clean Paper Drive Roller Wipe paper drive roller clean of any bits of paper and debris with alcohol and a nonabrasive material Completion Perform the System Performance Test on page 4 9 to verify PRN 50 M and PRN 50 operation Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 4 5 2006503 001 Maintenance Maintenance Schedule Performance Test This chapter contains a
57. t Digital Writer Revision A 2006503 001 Interface PCB General Power Supply Requirements Table 4 Power Supply Requirements Voltage Limits Current J5 15V 14V to 16V 75 mA 1 2 Input Output Signal Requirements J1 Connector Table 5 Connector J1 Pin Signal Name Level Direction Description 1 CTRLTGH RS 422 Output RS422 differential drive 2 nc 5V ground 3 CTRLTGL RS 422 Output RS422 complement differential drive 4 nc no connection 5 GLSML RS 422 Input Anode side input 6 nc no connection 7 nc no connection 8 nc no connection 9 GLSMH RS 422 Input Cathode side input Shell CHASSIS chassis ground J2 Connector M Port Table RJ45 Connector J2 M Port 801390 002 Pin Signal Name Level Direction Description 1 NC 2 NC 3 SID RS 232 Output RS 232 transmit 4 RETURN Power Input RS 232 signal common 5 dTxD TTL Bi directional Device identification 6 SID RS 232 Input RS 232 receive 1 dR xD TTL Input RS 232 clear to send 8 NC Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2006503 001 6 5 Interface PCB General J2 Connector AutoPort J5 Connector Table 7 RJ45 Connector J2 AutoPort 801390 001 Pin Signal Name Level Direction Description 1 NC 2 NC 3 TX RS 232 Output RS 23
58. t seating of socketed components and circuit boards Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 4 3 2006503 001 Maintenance Maintenance Schedule General Cleaning Exterior Cleaning Interior Cleaning Clean the PRN 50 M or PRN 50 on a regular basis You may clean the exterior surfaces of the writer with a dampened lint free cloth Use one of the following approved solutions m ammonia diluted m Cidex m sodium hypochlorite bleach diluted or m mild soap diluted To avoid damage the equipment follow these rules CAUTION Failuretofollow these rules may melt distort or dull the finish of the case blur lettering on the labels or cause equipment failures Always dilute the solutions according to the manufacturer s suggestions Always wipe off all the cleaning solutions with a dry cloth after cleaning Never use wax containing a deaning substance Never pour water or any deaning solution on the equipment or permit fluids to run behind switches into the connectors or into any ventilation openings in the equipment Never use these cleaning agents m abrasive cleaners or solvents of any kind acetone m alcohol based cleaning agents except for cleaning the thermal print head or m Betadine On aregular basis qualified service personnel should open the writer and blow dust from the unit with compressed air 4 4 PRN 50 M M Port and PRN 50 AutoPo
59. the protective earth pin inthe MAINS PLUG and each ACCESSIBLE METAL PART which could become LIVE in case of failurein BASIC INSULATION 2 The voltage drop between the parts described is measured and the impedance determined from the current and voltage drop I t shall not exceed the values indicated For EQUIPMENT without a POWER SUPPLY CORD theimpedance between the PROTECTIVE EARTH TERMINAL and any ACCESSIBLE METAL PART which is PROTECTIVELY EARTHED shall not exceed 0 1 ohms For EQUIPMENT with a POWER SUPPLY CORD theimpedance between the protective earth pin in the MAINS PLUG and any ACCESSIBLE METAL PART which is PROTECTIVELY EARTHED shall not exceed 0 2 ohms When taking this measurement move the customer s power cord around no fluctuations in resistance should be observed Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 4 13 2006503 001 Maintenance Electrical Safety Tests Ground Earth Wire Leakage Current Tests Perform this test to measure current leakage through the ground earth wire of the equipment during normal operation Set the leakage tester switches as follows Selector knob 1 GND switch OPEN Polarity switch NORM Power switch OFF 2 Connect the DMM tothe METER jacks on the leakage tester Set the DMM to measure millivolts 3 Connect the power cord of the device under test to the power receptacle on the rear of the leakage tester NOTE The
60. vision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 2 9 2006503 001 Equipment Overview Technical Specifications Technical Specifications Table 5 Performance Specifications Display Indicators LEDs Power Paper Out System Interface May be used with any Solar monitor Eagle monitor or Tram display Number of Waveform Channels Four maximum Recorder Information Automatic graphing from alarm or alarm stacking manual graphing from monitor or central station display Writing Method Thermal fixed head dot array Writing Resolution 200 dots inch vertical 480 dots inch horizontal at 25 mm s Paper Width 50 mm 1 97 in Paper Length 30 5 m 100 ft Paper Speed 0 1 0 5 1 5 10 12 5 25 50 mm s 2296 Waveform Frequency Response Limited only by acquisition system Grid Printed as needed Table 6 Environmental Specifications Power Requirements 110 20 VAC 50 60 Hz single phase 220 40 VAC 50 60 Hz single phase Power Consumption 50 W maximum Cooling Convection Heat Dissipation 170 Btu hr Operating Ambient temperature 0 C to 50 C 32 F to 122 F Relative humidity 5 to 95 noncondensing Storage Ambient temperature 40 C to 70 C 40 F to 158 Relative humidity 5 to 9596 noncondensing Table 7 Physical Specifications Height 20 4 cm 8 in Width 11 6 cm
61. ystems Information Technologies recommends that you perform all safety tests presented in this chapter upon receipt of the device every twelve months thereafter each time the main enclosure is disassembled or a circuit board is removed tested repaired or replaced and record the date and results on the Maintenance Repair Log included at the end of this chapter CAUTION Failure to implement a satisfactory maintenance schedule may cause undue equipment failure and possible health hazards Unless you have an Equipment Maintenance Contract GE Medical Systems nformati on Technologies does not in any manner assume the responsibility for performing the recommended maintenance procedures The sole responsibility rests with the individual or institution using the equipment GE Medical Systems I nformation Technologies personnel may at their discretion follow the procedures provided in this manual as a guide during visits to the equipment site Electrical safety tests may be performed under normal ambient conditions of temperature humidity and pressure Revision A PRN 50 M M Port and PRN 50 AutoPort Digital Writer 4 11 2006503 001 Maintenance Electrical Safety Tests Test Equipment Wall Receptacle Test The manufacturer recommended test equi pment required to perform electrical safety tests is listed below Equivalent equipment may be substituted as necessary Table 1 Required Tools Spec
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