SERVICE MANUAL SPIROBANK & SPIROBANK G
Contents
1. TRI n D4 o HVZB veco x Bl 3 e RESET 1 m 2 vec mW dad IF RSET vec Z ovce VL 0 H RI4 3 RB715F pod SN Do Sed TC54VC 4 333 22 ue 88832111 i PANXEWEMMY Al CKCFRIT SOY vec vec XE NC 42 98 ATR BBS 8 pi 43 NC DI F P 18 cen mis pa 44 PCUVPATAL A AT PEO ANO 37 ae AIA Ka s PC2 DATA2 T rs PFO ADDRO ar 1 CONS R20 D3 45 A RE 16 Al Ico 10M 4K7 D4 46 PC3DATA3 o PFI ADDRI 15 A2 1 32 2 P 56 PC4 DATA4 Ni PF2 ADDR2 13 A2 xi wc vec 3 1 k DS 47 14 A3 CSGEN 2 31 AIS IC8A AO PCSDATA5 PF3 ADDR3 A16 A15 4 2 ci C2 T D6 48 13 A4 Al4 3 30 RW PC6DATA6 PF4 ADDR4 Al4 CE2 5 3 22p 22p D7 49 12 AS A12 4 29 RAV 1 2 CSIO1 A0 RESET 50 PC7DATA7 PF5 ADDR5 A12 WE 6 4 IC3 11 A6 A7 5 28 A13 CSI02 RAW 51 RESET Tre ARDRG 10 AT A6 6 A s 27 AB cio T CSI01 a z2 XIRQ MC68HC11F1 PF7 ADDR7 5 xe x 5 A6 as ZZ A9 Por m 8 6 n Do DO IRQ PBO ADDRS A5 as 2 23 9 7 CSPRG 53 8 A9 A4 8 25 Al Di DI PG7 CSPROG PBI ADDR9 A4 All 10 8 CSGEN 54 7 A10 A3 9 24 D2 D2 PG6 CSGEN PPPPP PB2 ADDR10 A3 OE 1 9 CSIO1 55 6 All A2 10 23 A10 D3 D3 PG5 CSIO1 AAAAA P PB3 ADDRII A2 A10 12 CS102 56 7654 5 A12 AI 11 22 CSPRG D4 D4 PGA CSIO2 PP P PBAADDRI2 AI CEI2. SERVICE MANUAL SPIROBANK amp SPIROBANK G Pag 1 15 SPIROBANK HARDWARE DESCRIPTION o_o DORE LCD uP for POWER sv SUPPLY BAT FLOW METER OPF OR err TORE BUZZER POWER 1 0 SUPPLY TIMER 3 6 V CONTRO RTC BAT OFF ON Fig 1 SYSTEM BLOCK DIAGRAM The hardware system is made up of 6 main blocks Microprocessor I O periferals RAM RTC Power suppli Reset circuit ONU RI Dmr These main blocks are illustrated in fig 1 The narrow lines serve to show the distinction between the power up ON power down OFF and reset circuits Now we can look at the main characteristics within each block Microprocessor Motorola 68HC11F1FN at the heart of the system IC3 and all of the other system components are controlled from this uP From within the microprocessor a the 8 bit DATA BUS controls the LCD and also controls data exchange to and from the external static RAM IC9 Pag 2 15 b allocates a 16 bit ADDRESS BUS to the 128kb 8bit RAM c the I O address space is automatically controlled by means of 2 of the four built in CHIP SELECT outputs CSIO1 for the LCD CSPROG for the external RAM d another CHIP SELECT line CSGEN controls the access to the two page RAM 64kb each page e Has 8 A D inputs two of which TEMP and HVZB are used for reading the temperature sensor and the measurement of the battery level of the 9V main battery I O Periferals a Keyboard wi
3. 13 TRE 57 6556 4 AB A0 12 21 D7 Ds Ds PG3 RIDDP e000 i PBS ADDR13 A0 106 14 DUE 58 REPP Be ACCOCPPPA 3 A14 Do 13 20 D6 D6 D6 UNO 59 PG2 WD 7 4D 12345 AAAD PBOADDRI4 2 DI 14 491 Vo 19 DS D7 12 D7 geo PGI m PTOS y995907 9 x NC DI 15 102 1 06 18 D4 16 xP wc NC 22 I vos yes H5 Pi NGDDS SD CCCI NN COOI Of KSDIT111123530C 16 xp vos gt GM76C8128LL vec 68 861868 681777777777 78 2 VZB vec 12345678901234567890 vec ICT VCC VZB w LM35 32768Hz TRE TT R A 3 RI Z R2 TB U T TL 1C6 i fons 4K7 gt 4K7 v ICI Be B s S SP LMC7101 2 s OFF 1 1C8C 3 2 2 1 16 del INEX 6 3 TEMP 1 Yeur UNO ba 5 GND GND 1 veco a DUE 4 E R XI 14 TA 74HCT14 S SUB 3 4 RST X2 143 c7 D CR 6 4 bo GND 100n RTC 5 12 1 vo s Tu uw IC8B e ux imz Lux JP1 2 3 4 7 10 VL PLUSE 4 3 a AM zu VBATO 5 Oo I a GND VBATB ITI za FARCITA SAR 4K7 Tr 6 7 8 DS2404S KU Ve gt R6 TURBON2 cu 3 TURBONI 100n DI 4K7 1 i 6 CR VZB Ro lt RIO RID CKON RX 150 gt gt 4K7 4K7 RTB VB RX S TEL vec Sens RA ia e De si ICSE 74HCT14 Y 100K Set 100K lt T nog 3 105 4 ce 8 DD IN 6 OUT KBO x RTS 12 13 7 RS Ta LBI SET GNDSHDN 12345678 JE2 ca 74HCT14 100K lt Ds 41 T MAX667 m CKON RB751 SHDN 330K i VLVCC RIS R16 S 1 R17 AA AA ARA LBO 8M2 10M 4K7 VL w TITLE Circuit Diagram Cart 1 z MIR001 G j Bf I pRavine No REV E SE 00100 001 2 ni 2 DRawn BY DATE APPROVED B
4. CEU CTI 8 3 C4 C5 C6 9 1 C8 10 1 DI 11 3 D2 D5 D6 12 ii D3 13 1 D4 14 1 sci 15 1 IC2 16 1 IC3 17 ai IC4 18 1 IC5 19 1 IC6 20 1 IC7 S 1 IC8 22 i IC9 23 4 IRl IE1 IR2 IE2 24 IT 25 1 JP1 26 i7 RR1 R1 R2 R5 R6 R7 R10 R11 R14 R17 R19 R20 R21 R22 R23 R28 R29 BUZZER CON16 CON7 CON2 CON14 22p 100n lu 47u RB731U RB751 CRIOR RB715F DS2404S GD4027BD MC68HC11F1 TC54VC MAX667 LMC7101 LM35 74HCT14 GM76C8128LL LED 1 VL 3 6V JUMPER 4K7 Pag 12 15 560020 130004 113352 123700 960038 120324 831708 831746 810068 810036 600050 602635 253104 600060 64 64 64 64 64 64 64 64 64 4693 0313 8171_PU 0290 4930 9331 1527 8018 6452 631314 630430 970232 712676 SE 0001 001 Revised May 27 2001 Revision 1 Bill Of Materials May 27 2001 1217335 Item Quantity Reference Part Cod Art 27 R3 R4 R8 R12 R13 R25 100K 712708 28 R9 150 712638 29 R15 8M2 712782 30 R16 R18 10M 712784 31 R24 10K 712684 32 R27 R26 510K 712725 33 TP1 TE 34 X1 32768Hz 680500 35 x2 4 9152MHz 680510 36 tabl TABELLA 37 tab2 MIR Pag 13 15 Page 2 DI El RI MTX E 1K z 188355 P L ER HO I O O
5. a Schmitt trigger IC8 and then sent to two input ports of the uP The uP has the possibility to switch the turbine on or off by switching on or off the infrared transmitters by way of a second output port f buzzer Piezoelectric buzzer with internal oscillator with resonance frequency of 4KHz The activation of the buzzer is controlled directly via two output ports of the uP RAM Static RAM 128k 8 bit IC9 The power down phase is controlled by the RESET signal and data retention backup is powered by the 3 6V lithium battery IT1 Pag 6 15 The RAM is configured in two pages each of 64 Kbyte The access to the pages is controlled directly from an output port of the uP line CSGEN Page 1 contains the measured spirometric data database and the application software Page 2 contains a reserve copy of the software which is utilised only in the case of a checksum error in page 1 The checksum is controlled every time that the system is switched on In the case of a malfunction a message on the display informs the user that the data contained in the RAM memory have been cancelled Timer Real Time Clock connected to the uP via an I O line and via which bidirectional serial communication is also managed Contains the current date and time Access to the timer is regulated by a security code of 64 bit which therefore avoids unauthorised changes to the contents of the timer and of its internal memory which also contains all of the
6. a vortice of the moving air within the axis of the senmsors c A moving part rotor the velocity of rotation of which is proportional to the flow of air passing through the tube Electrical parts a Two pairs of infrared transmitters receivers positioned as shown infig 2 b A signal conditioning circuit C C6 R12 D5 D6 IC8 to rectify the output signal from the two infrared light receivers The rotation of the rotor causes the interruption of the infrared rays thus creating a signal which has a frequency directly proportional to the flow The measurement of the flow of air which passes through the tube is therefore proportional to the number of interruptions of the infrared rays The phase difference Ag positive or negative between the signals from each of the two infrared receivers IR1 and IR2 depends upon the direction of rotation of the moving rotor and therefore supply the information on the direction expiration or inspiration of the air flow In detail Ag gt 0 for expiratory flow Aq lt 0 for inspiratory flow Pag 4 15 RX1 TURBINE Pe TX1 Fig 2 Diagram of the turbine operation Pag 5 15 AT 1 PULSE SERIES 2 PULSE SERIES TT Ag lt 0 Inspiratory flow 1 PULSE SERIES 2 PULSE SERIE TT Ag gt 0 Expiratory flow K FLOW 2 AT Fig 3 Output of the two infrared receivers IRI IR2 for inspired and expired air flows The two wave trains are squared by
7. configuration data of the system software In case of a malfunction the default configuration is reinstalled and a message informs the user that the data in the timer have been cancelled By use of an output signal IRQ the machine can be switched on at a preset time The data retention backup is assured by the 3 6V lithium battery IT1 Power supply The main power for the system is supplied by a 9V battery alcaline or similar The back up power is supplied by an internal lithium battery of 3 6V attached directly to the PCB The maximum power consumption of the machine when the flow meter is also in operation is 25mA The consumption when the machine is in operation but without the flow meter switched on is 12mA Fach time that the machine is in input phase the machine is put into a wait state and the consumption is then 3mA The consumption of the lithium battery active when the system is switched off data retention mode at an ambient temperature of 25 degrees is approximately luA The power supply is made of two integrated circuits a A JK flip flop IC2 to carry out the function of power supply control b Three functional blocks are connected to this circuit which are able to power up and or power down the system 1 Manual power on and power off by keyboard 2 Automatic power on by RS232 or by RTC timer 3 Automatic power off by uP Pag 7 15 c A linear SV regulator IC5 with control input for 1 shutdown to m
8. 2 7 O ICI o O RS232 E2 R2 HO I o 1K o R3 s O 4K7 M 5 _E6 4 5 D2 A SCHERMO EN lo FI o JP1 c 188385 Lo o a a 22u o 1 0 HO _E3 ES e vB ke CONNECTOR DB25 R7 2K2 8 1 x S m m pe R4 MMST AN 7 2 2N2222A ad VA 330R F l IC2 MRX S RS y RS232 R8 DZI IE gt 5 6 6 2 DES RE ES R6 5 4 MRTS A 474 s TITLE SHEET OF 1 mg gt ES DRAVWING Ne REV 7 2 a SE 00200 001 2 Z DRAWN BY DATE APPROVED BY DATE Pag 14 15 J1A 3 o EZ DET R8 ORANGE GREEN E IB RED BLU H 1 p DITE MIR002 TEL p m S COMPONENT LAYOUT 1 e Es DRAWING No REF lt 5 PM MIR002 TEL a sa z z a DRAUN BY DATE APPROVED BY DATE 21 05 96 21 05 96 Pag 15 15
9. Y DATE 06 07 01 06 07 01 1 2 3 4 5 6 7 8 Pag 9 15 In tom cf l v SEKO Spa claims the proprty of this Growing Any reproduction in any form cuz authorization is forbidden di questo disegno angue modo A ler riserviamo la propricte do o di renderlo comi o a ditte concorrenti senza nostre autorizzazione e ci riservi AU A tornini di 06 07 01 5 7 8 gt TITLE Component Layout SHEBT 1 MIR001 G Bi re Kem 2 z di s z PM MIRO01 G 7 Z orawn BY DATE APPROVED BY DATE s Pag 10 15 7 8 In tom cf l v SEKO Spa claims the proprty of this Growing Any reproduction in any form cuz authorization is forbidden Somungi imo la propriete di questo disegno o i reader comunque nolo teri 0 8 ditte concorrenti senza nosie sutorizzazione e ci riservi di Ea A termini di con divieto Pag 11 15 5 7 8 TITLE Component Layout SHEET 2 MIR001 G Be 2 L DRAWING No REV PM MIR001 G 2 Z DRAWN BY DATE APPROVED BY DATE 06 07 01 06 07 01 7 z SE 0001 001 Bill Of Materials May Item Quantity Reference Revised Revision 27 2001 sl May 27 2001 12317235 Part Cod Art Page di BZ1 2 1i CONI 3 9 CON3 CON2 4 1 CON4 5 1 CON5 6 2 61 62 7 5 C3 OV CG
10. anage the ON OFF of the Vcc voltage 2 Low battery to compare the voltage of the backup battery lithium with the voltage value preset for low battery set at 2 8V When the system is switched off OFF the regulator is put into shutdown mode and the total power consumption from the 9V battery is reduced to 1 uA Reset The reset signal is generated by a voltage sensing circuit IC4 The reset signal is activated when the voltage at the input is lt 4 7V The rest is applied to the uP and to the RAM where it takes the role of POWER DOWN for data retention BACKUP Pag 8 15 In tom cf l v SEKO Sp a claims the proprty of this drawing Any reproduction in any form cuz authorization is forbidden propriete di questo dise o Somm nolo a le izmo Ip lo o di renderle e ci riservi o a ditte concorrenti senzas nostra autorizzazione AU A termini di
11. th 5 keys Desription of the 7 pins of the keyboard connector CON2 1 direct power supply circa 6V VZB unregulated 2 manual power down key OFF 3 regulated power supply 5V VCC 4 keyl 5 key 2 6 key 3 7 key CR Return Enter and manual power on ON The 1 2 3 and CR keys are connected to the 4 input ports of the uP for reading the pressed key when the system is switched on When instead the machine is switched off the only active key is the CR which allows the unit to be switched on The manual power off is activated by the OFF key b LCD 2 Line 16 character per line display The LCD is connected to the uP via the 8 bit DATA BUS and 4 lines of control c RS232 Bidirectional serial port asincronous controlled by the uP via its serial port Towards the PC the port has 5 lines CON3 configured as follows 1 VB 9V circa direct power on unregulated 2 RX 3 TX inverted 4 TX 5 RTS Pag 3 15 d Temperature sensor Transducer of temperature voltage IC7 NATIONAL LM 35 The output signal amplified by way of an operatinal amplifier IC6 is connected to one of the A D channels of the uP line TEMP 100mV 1 degree Centigrade e Flow meter Sensor for the measurement of the flow and volume air The sensor is comprised of Mechanical parts a A tube in policarbonate IR transparent to infrared light b A pair of swirl deflectors positioned at the exit of the tube in order to create
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