Dräger Evita 4 Repair Instructions
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Dräger Evita 4 Repair Instructions

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Contents
Repair Instructions - Electronic Components
1
1.1
Output Voltages ...............................................................................................................6
1.1.1
Sub D Socket Configuration .......................................................................7
1.1.2
Voltage Measurement ....................................................................................8
1.2
Replacing the Power Supply Unit ................................................................................9
1.3
Retrofitting the Optional DC Module ........................................................................11
1.4
Replacing the Optional Rechargeable Battery ...................................................... 16
2
2.1
Power Supply to the CPU 68332 PCB .................................................................. 18
2.2
Service LEDs on the CPU 68332 PCB .................................................................. 20
2.3
Replacing the Battery on the CPU 68332 PCB ....................................................21
2.4
Replacing the Real-Time Clock on the CPU 68332 PCB .................................. 22
2.5
Replacing the CPU 68332 PCB .............................................................................. 23
2.6
Test Possible in DS Mode .......................................................................................... 24
2.6.1
Diagnosis Mode ........................................................................................... 24
2.6.2
External DS Mode Using PC ..................................................................... 24
2.7
Conversions ................................................................................................................... 25
2.7.1
Retrofitting of CPU 68332 PCB as per IDM No. 6.............................. 25
3
3.1
Power supply to the Communication PCB ............................................................. 26
3.2
Communication PCB Connector Pin Assignment ................................................ 26
3.3
Replacing the Communication PCB ........................................................................ 29
3.4
Tests possible in DS mode ......................................................................................... 30
3.4.1
Diagnosis mode............................................................................................ 30
5664.500/800 Evita 4/Evita 2 dura
Dräger Medizintechnik
02/98
D
Page 1
Repair Instructions
6
18
26

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Summary of Contents for Dräger Evita 4

  • Page 1: Table Of Contents

    Power supply to the Communication PCB ............. 26 Communication PCB Connector Pin Assignment ..........26 Replacing the Communication PCB ................ 29 Tests possible in DS mode ..................30 3.4.1 Diagnosis mode.................... 30 Page 1 5664.500/800 Evita 4/Evita 2 dura 02/98 Repair Instructions...
  • Page 2 External DS mode using PC ..............38 Conversions ........................39 5.5.1 Replacing CO2 Carrier PCB According to IDM No. 3 (Evita 4) ..39 5.5.2 Conversion due to Error Message “Ext. Battery reversed poles” IDM No. 2 (Evita 2 dura) or IDM No. 19 (Evita 4) 40 5.5.3...
  • Page 3 Diagnosis mode.................... 58 10.4.2 External DS mode using PC ..............58 Display with DC/AC converter for backlighting Evita 4 11.1 Power Supply to the Display ..................60 11.2 Connector Pin Assignment of the Display .............. 60 11.3 Replacing the Display ....................61 11.4 Testing DC/AC converter for backlighting .............

  • Page 4: Graphics Controller Pcb Evita

    15.2 Voltage Supply to Peripheral Equipment ..............73 15.2.1 X2 Connector on the Frontpanel PCB to the 7-Segment PCB ..73 15.2.2 X3 Connector on the Frontpanel PCB to the Membrane Keyboard. 73 Page 4 5664.500/800 Evita 4/Evita 2 dura 02/98 Repair Instructions...
  • Page 5 /AIR PCB ............88 17.3 Notes Relating to Trouble Shooting ................. 89 17.4 Tests possible in DS mode ..................89 17.4.1 Diagnosis mode.................... 89 17.4.2 External DS mode using PC ..............89 Page 5 5664.500/800 Evita 4/Evita 2 dura 02/98 Repair Instructions...

  • Page 6: Power Supply Unit

    Important: With devices manufactured end of 96 or later, the extension box connector is no longer available. The voltages must therefore be measured on the Pneumatics Controller PCB at pins X3, X11, and X21. Extensionbox Fig. 1: Rear view (Sub D socket) Page 6 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 7: Sub D Socket Configuration

    Instructions - Service No./ Modi, Error list" chapter 9.4.1, Testing voltages, page 138. refer to section of "Repair Instructions - Service No./ Modi, Error list" chapter 9.4.2, Power pack status, page 140. Page 7 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 8: Voltage Measurement

    • If no voltages are present, check the mains fuses on the rear panel (if the +24 V voltage is not present, check the control unit for short circuit). Extensionbox Fig. 3: Rear view (mains fuses) Page 8 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 9: Replacing The Power Supply Unit

    Fig. 4: Side views (removing the power supply unit, step 1) • Remove the cord grip B. • Remove the power cord C. Fig. 5: Rear view (removing the power supply unit, step 2) Page 9 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 10 DO NOT supply the Evita with mains voltage. DO NOT press the “run” button on the VDE portable measuring set. • Measure the equivalent leakage current using the VDE portable measuring set. Page 10 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 11: Retrofitting The Optional Dc Module

    Fig. 7: Removing the cover plate • Remove the screws C at the top and the bottom of the power supply unit. bottom Fig. 8: Disassembling the empty housing of the power supply unit Page 11 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 12 The 2-core cable E is located on older power supply units at the mains filter and is secured with a cable tie. With newer power supply units the calbe is “parked” on the PCB in the power suppy unit on a connector. Page 12 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 13 Fig. 11: Connections between the power supply unit and the DC module (part 3) • Thread the red 2-pin connector H through the opening on the front panel. The red cable of the 2-pin red connector must point upwards (+). Page 13 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 14 • Mount the DC module by following the reverse method used for dismounting of the empty housing. CAUTION Kinked or squeezed cables may cause short-circuits. DO NOT kink or squeeze cables during reassembly. Page 14 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 15 • Switch the Evita on. • Enable the “DC module” option by entering “4811”. • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. IMPORTANT: If the Evita should not start, the batteries might be exhausted. Connect the Evita to the power supply and allow the batteries to recharge (several hours).

  • Page 16: Replacing The Optional Rechargeable Battery

    • Disconnect the power cord from the socket-outlet. • Remove the power supply unit. • Remove the Phillips screws A. • Remove the cover B. Fig. 14: Power supply unit (viewed from top) Page 16 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 17 • Reassemble the power supply unit by following the reverse method used for disassembly. • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. IMPORTANT Exhausted batteries must be charged for several hours during mains operation.

  • Page 18: Cpu 68332 Pcb

    +5 V (also at X11) –15 V Assignment +5 V supply voltage DGND Assignment +5 V ISO GND ISO VCC RAM Assignment +5 V (minimum voltage for retention of data: 2 V) DGND Page 18 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 19 C400 RAMs G2=Battery U1 = DC/DC converter D35 = Real-time clock D1 = Microprocessor D22 = EEPROM LP CPU Best. Fig. 16: Components mounting diagram of the CPU 68332 PCB Page 19 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 20: Service Leds On The Cpu 68332 Pcb

    Display reset The CPU resets the control unit. Pneumatics disabled This signal is initialized if the pneumatics is not functioning properly. It will remain active until the pneumatics functions properly again. Page 20 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 21: Replacing The Battery On The Cpu 68332 Pcb

    • Install the CPU 68332 PCB in the Evita. • Secure the CPU 68332 PCB with the screws. • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. Page 21 5664.500/800 Evita 4/Evita 2 dura...

  • Page 22: Replacing The Real-Time Clock On The Cpu 68332 Pcb

    • Secure the CPU 68332 PCB with the screws. • Switch the Evita on. • Adjust time and date. • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. Page 22 5664.500/800 Evita 4/Evita 2 dura...

  • Page 23: Replacing The Cpu 68332 Pcb

    • Secure the CPU PCB with the screws. • Load the relevant software into the CPU 68332 PCB. • Check the Evita by following the instructions in the Evita Test Certificate. Page 23 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 24: Test Possible In Ds Mode

    "Repair Instructions - Service No./ Modi, Error list" chapter 9.4.7, Loudspeaker test, page 148. refer to section of "Repair Instructions - Service No./ Modi, Error list" chapter 9.4.10, CPU test, page 149. Page 24 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 25: Conversions

    • Connect PC as for download and call in download, refer to section of "Repair Instructions - Software Change Report, Download and BD32 " chapter 3, Download, page 17. Here only check if connection between the PC and the Evita 4 can be made, i.e. the message “Connected with Evita” will be displayed.

  • Page 26: Communication Pcb (Optional)

    RS232 socket are specified (the second sockets are comparable). X3 (CAN socket) Assignment CON-DET1 (recognition for plugged connector) CANL (external CAN bus) GNDISO-2 (ground for CAN interface) GNDISO-2 (ground for CAN interface) CANH (external CAN bus) Page 26 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 27 IPIPE (status signal from 68332) X13 (ISO2 voltage test connector) Assignment +5 V ISO-2 (operating voltage) GND ISO-2 (ground) X14 (Operating voltage test connector) Assignment +5 V GND (ground) +15 V VPP (programming voltage) Page 27 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 28 PROM-EN-TEST (input for simulation of PROM-EN) If a jumper is plugged onto X50, the voltage regulator of the processor can be switched to 12 V. The board can be programmed without the external signal PROM-EN. Page 28 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 29: Replacing The Communication Pcb

    • Load the corresponding software into the Communication PCB. • Check the Evita by following the instructions in the Evita Test Certificate. Fig. 20: Component mounting diagram of the Communication PCB Page 29 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 30: Tests Possible In Ds Mode

    Diagnosis page “Microprocessor” of “Electronics”, page 70. under “RAM-Comm”. 3.4.2 External DS mode using PC refer to section of "Repair Instructions - Service No./ Modi, Error list" chapter 9.6, “Communication” testing (Communication PCB), page 159. Page 30 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 31: Paediatric Flow Pcb Option For Evita 4 As Of Sw

    Dräger Medizintechnik Paediatric Flow PCB Option for Evita 4 as of SW 2.20 CAUTION Electrostatic discharge can damage electronic components. Use an ESD protection mat and a wrist strap when handling electronic modules. Power Supply to the Paediatric Flow PCB...
  • Page 32 Dräger Medizintechnik X5 (Digital voltage test) Assignment Assignment +5 V DGND X12 (Digital voltage test) Assignment Assignment +5 V-B DGND Page 32 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 33: Replacing The Paediatric Flow Pcb

    • Secure the Paediatric Flow PCB with the screws. • Check the Evita by following the instructions in the Evita Test Certificate. Fig. 21: Component mounting diagram of the Paediatric Flow PCB Page 33 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 34: Co2 Carrier Pcb

    Power supply to the temperature hybrid and to the pressure sensor Assignment Assignment 1 temperature hybrid +10 V-A 1 pressure sensor +10 V-A 4 temperature hybrid AGND2 3 pressure sensor AGND2 Page 34 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 35: Co2 Carrier Pcb Connector Pin Assignment

    +15 V-ISO Reset SpO GND-ISO-1 GND-ISO-1 –15 V-ISO ECG-SYNC (ISO) –15 V-ISO GND-ISO-1 Assignment Assignment GND-EXT – ECG-SYNC Assignment Assignment GND-ISO-1 +15 V-ISO 5 V-ISO-1 –15 V-ISO1 Assignment Assignment Temperature sensor Page 35 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 36 Assignment X9 Pin 3 RXD-CO2 TXD-CO Test only possible with the CO module connected Jumper X15 RS232 test SpO (pin 1–2 normal, 2–3 test) Assignment Assignment X3 Pin 8 RXD-SPO2 Page 36 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 37 * X3 and the DC/DC converter are integral parts of the optional SpO ** PCB Super gold according to IDM No. 29 (Evita 4 or Evitad 2 dura) LP CO2-Carrier Best. Fig. 22: Component mounting diagram of the CO Carrier PCB Page 37 5664.500/800 Evita 4/Evita 2 dura...

  • Page 38: Replacing The Co2 Carrier Pcb

    "Repair Instructions - Service No./ Modi, Error list" chapter 9.4.6, Horn test, page 147. refer to section of "Repair Instructions - Service No./ Modi, Error list" chapter 9.4.8, Gold- Cap, page 148. Page 38 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 39: Conversions

    Dräger Medizintechnik Conversions 5.5.1 Replacing CO Carrier PCB According to IDM No. 3 (Evita 4) • Switch unit off. • Observe electrostatic precautions. Use an ESD protection mat and a wrist strap. • Dismantle CO Carrier PCB (lowest PCB in the electronics unit).

  • Page 40: Conversion Due To Error Message "Ext. Battery Reversed Poles" Idm No. 2 (Evita 2 Dura) Or Idm No. 19 (Evita 4)

    Dräger Medizintechnik 5.5.2 Conversion due to Error Message “Ext. Battery reversed poles” IDM No. 2 (Evita 2 dura) or IDM No. 19 (Evita 4) See IDM: 02/99 Lenke No. 29 replaces IDMs Nos. 11/19/22 (Evita 4 or Evita 2 dura) Page 40 5664.500/800 Evita 4/Evita 2 dura...

  • Page 41: Conversion For Device Error 02.71.003 Idm No. 2 (Evita 2 Dura) Or Idm

    Conversion for Device Error 02.71.003 IDM No. 2 (Evita 2 dura) or IDM No. 19 (Evita 4) See IDM: 02/99 Lenke No. 29 replaces IDMs Nos. 11/19/22 (Evita 4 or Evita 2 dura) Page 41 5664.500/800 Evita 4/Evita 2 dura 06/98...

  • Page 42: Power Supply Pcb (Co 2 Measurement)

    P2 (Inputs/outputs for communication between the PCBs of the CO measurement) Assignment Assignment DGND of the CO measurement TTL-TXD (Evita) RXD with RS232 level (PC) TTL-RXD (Evita) TXD with RS232 level (PC) Page 42 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 43: Measuring The Voltages On The Power Supply Pcb

    Carrier PCB into the second slot viewed from top. • Remove the cover of the Evita (see “Removing the Power Supply Unit”). • Measure the voltages at the P4 connector (see connector pin assignment). Page 43 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 44: Test Points On The Power Supply Pcb

    /off +15 V ON-OFF TTL-RXD +15 V TTL-TXD –15 V +8 V OUT-A TP10 1A 1B Andros PCB Dräger PCB Fig. 24: Components mounting diagram of the Power Supply PCB Page 44 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 45: Replacing The Power Supply Pcb

    • Install the CO Carrier PCB in the Evita. • Secure the CO Carrier PCB with the screws. • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. Page 45 5664.500/800 Evita 4/Evita 2 dura 06/98...

  • Page 46: Processor Board Pcb (Co 2 Measurement)

    J2 (Inputs/outputs for communication between the PCBs of the CO measurement) Assignment Assignment DGND of the CO measurement TTL-TXD (Evita) RXD with RS232 level (PC) TTL-RXD (Evita) TXD with RS232 level (PC) Page 46 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 47 X18= open W10 = A centre (if applicable) X19 = closed X20= closed X21= 2-3 closed X22= open X23= open Fig. 25: Components mounting diagram of the Processor Board PCB Page 47 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 48: Replacing The Processor Board Pcb

    • Install the CO Carrier PCB in the Evita. • Secure the CO Carrier PCB with the screws. • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. Page 48 5664.500/800 Evita 4/Evita 2 dura 06/98...

  • Page 49: Co2 Measurement

    Measure the voltages on the Power Supply PCB. (see Power Supply PCB). Are the voltages Break (Power Supply PCB / socket). present? Test the Power Supply PCB (see Power Supply PCB). Fehlersuche CO2e Page 49 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 50: Co2 Sensor

    • Read out the CO value. • Attach a new clip to the span-check filter whose value is closest to the measured value. A set of clips can be ordered separately. Page 50 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 51: Spo2 Module (Optional)

    • SpO module with connecting cable for X3. • DC/DC converter U4 on the CO Carrier PCB. • Connector X3 on the CO Carrier PCB. Page 51 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 52: Power Supply To The Graphics Controller Pcb

    Dräger Medizintechnik Graphics Controller PCB Evita 4 CAUTION Electrostatic discharge can damage electronic components. Use an ESD protection mat and a wrist strap when handling electronic modules. 10.1 Power Supply to the Graphics Controller PCB X1 (Sub D connector – power supply only)
  • Page 53 X14 (Membrane keyboard) Assignment Assignment BUTTON (button of the control knob) +5 V ALARMLED (anode of the alarm LEDs) KN1 (signal 1 from the control LS1 (speaker connection +) knob) Page 53 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 54 KN2 (signal 2 from the control LS2 (speaker connection –) knob) X5, X15 (Jumper) Assignment No function assigned X20 (Jumper) Assignment +5 V PROM-ENX (signal for burning of the flash EPROMs) Page 54 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 55 Dräger Medizintechnik Fig. 27: Components mounting diagram of the Graphics Controller PCB Page 55 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 56 Dräger Medizintechnik Fig. 28: Soldering side of the Graphics Controller PCB Page 56 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 57: Replacing The Graphics Controller Pcb

    Dräger Medizintechnik 10.3 Replacing the Graphics Controller PCB • Switch the Evita 4 off. • Open the control unit. • Remove the plug-in connection to the electronics. • Remove the two hexagon head cap screws at the rear of the control unit.

  • Page 58: Tests Possible In Ds Mode

    • Mount the new Graphics Controller PCB by following the reverse method for dismounting. • Load the corresponding software into the Graphics Controller PCB. • Check the Evita 4 by following the instructions in the Evita 4 Test Certificate. 10.4 Tests possible in DS mode 10.4.1...

  • Page 59: Display With Dc/Ac Converter For Backlighting Evita

    ATTENTION The screen goes blank if the backlighting fails Three different displays are used in teh Evita 4. The backlighting differs from version to version Version 1 from Toshiba (as of 1995): •...

  • Page 60: Power Supply To The Display

    Connector Pin Assignment of the Display X4 (Graphics Controller PCB) Assignment Assignment BLANK (blanking signal) HSYNCH (horizontal +5 V synchronization, not in every display type) +12 V VSYNCH (vertical synchronization, not in every display type) Page 60 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 61: Replacing The Display

    11.3 Replacing the Display Example: Toshiba display; replacement is similar for other versions. • Switch the Evita 4 off. • Open the control unit. • Remove the four distance pins A (or nuts, in newer versions). Fig. 31: Dismounting the display (step 1) Page 61 5664.500/800 Evita 4/Evita 2 dura...
  • Page 62 • Replace D29 and D40 on the Graphics Controller PCB (see “Replacing the Graphics Controller PCB”). D29 and D40 are included in the Display conversion kit. • Check the Evita 4 by following the instructions in the Evita 4 Test Certificate. Page 62 5664.500/800 Evita 4/Evita 2 dura...

  • Page 63: Testing Dc/Ac Converter For Backlighting

    "Repair Instructions - Service No./ Modi, Error list" chapter 9.5.6, Testing of display, page 157. 11.5.2 External DS mode using PC refer to section of "Repair Instructions - Service No./ Modi, Error list" chapter 9.5.6, Testing of display, page 157. Page 63 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 64: Toshiba Display (1995 Or Later), Version 1

    Toshiba Display (1995 or later), Version 1 12.1.1 Power Supply to the Backlighting black To the Graphics Controller PCB, connector X7 To the backlighting Fig. 33: DC/AC converter with power supply Page 64 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 65: Replacing The Backlighting

    The order number of the backlighting assembly is related to the specific type of display. Please check which type of display you have before ordering a new backlighting assembly. • Switch the Evita 4 off. • Open the control unit.

  • Page 66: Nec Display (1996 Or Later), Version 2

    • Mount the new light fixture by following the reverse method used for dismounting. • Check the Evita 4 by following the instructions in the Evita 4 Test Certificate. 12.2...

  • Page 67: Power Supply To The Touchscreens

    13.1 Power Supply to the Touchscreens X2 (Graphics Controller PCB) Assignment Assignment +5 V DIMPWM (signal to dim the inverter) +5 V (operating voltage for the optocouplers) Page 67 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 68: Replacing The Touchframe

    • Mount the touchscreen by following the reverse method used for dismounting. • Check the Evita 4 by following the instructions in the Evita 4 Test Certificate. Page 68 5664.500/800 Evita 4/Evita 2 dura...

  • Page 69: Tests Possible In Ds Mode

    "Repair Instructions - Service No./ Modi, Error list" chapter 9.5.5, Testing of touchscreen, page 155. 13.4 Replacing the Window • Switch the Evita 4 off. • Open the control unit. • Remove the display. • Remove the touchframe.
  • Page 70 • Mount the window by following the reverse method used for dismounting. • Check the Evita 4 by following the instructions in the Evita 4 Test Certificate. Page 70 5664.500/800 Evita 4/Evita 2 dura...

  • Page 71: 7-Segment Pcb Evita 2 Dura

    Assignment 32/34 +5 V 27/29/31/33 26/28/30 ULED +3 V to +5 V (LEDs dark or bright, selectable with the “bright/dark” key) 14.2 7-Segment PCB Repair Information – No entries – Page 71 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 72: 7-Segment Pcb Component Layout Diagram

    D4 D5 D6 D7 D8 D9 D1 D2 D3 D13D14 D15 D10D11 D12 D16D17 D18 D19 D20 D21 D22 D23 D24 D25D26D27 D28D29 D30 D31D32D33 Fig. 38: 7-Segment PCB assembly Page 72 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 73: Frontpanel Pcb Evita 2 Dura

    “bright/dark” key) 27/29/31/33 32/34 +5 V 15.2.2 X3 Connector on the Frontpanel PCB to the Membrane Keyboard Assignment 1/2/3/4 +5 V 33/37 +24 V (via 2 resistors of 1 KΩ each) Page 73 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 74: X5 Connector On The Frontpanel Pcb To The Control Knob

    • Decoder D48 (only present in colour display option) should be taken from the old Frontpanel PCB and mounted on the new Frontpanel PCB. • After replacing a printed circuit board, download the respective software into the Frontpanel PCB. Page 74 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 75: Frontpanel Pcb Component Layout Diagram

    –UK +12V +24V D100 *Decoder D48 only available in the optional colour display. 83 09 124 for NEC display 83 09 176 for Sharp display Fig. 39: Frontpanel PCB assembly Page 75 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 76: Pneumatics Controller Pcb

    DGND +24 V +5 V 16.2 Connector Pin Assignment of the Pneumatics Controller PCB X2 (Background debug mode interface) Assignment Assignment DGND RESQ BKPT IFETCH DGND +5 V FREEZE IPIPE Page 76 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 77 X5 (PEEP/PIP valve) Assignment Assignment 5 V-B PEEP-OUT X6 (O sensor) Assignment Assignment +15 V-B O2-IN AGND –15 V-A X7 (Inspiration/expiration pressure sensor) Assignment Assignment AGND PEXP PINSP +15 V-F Page 77 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 78 PEXSP PINSP +15 V-G X11 (Test points) Assignment Assignment DGND +5 V – X12 (Flow sensor switch) Assignment Assignment FLOWS-POS DGND X13 (Fan and heating) Assignment Assignment +24 V-A AGND Page 78 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 79 X18 (ADC test point) Assignment Assignment ADCSIG AGND X19 (Test points) Assignment Assignment P-O2 –15 V-B AGND +15 V-B F-SIG AGND P-AIR F-INOP X20 (Flash EPROM programming voltage test points) Assignment Assignment DGND Page 79 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 80 X32 (Venting solenoid valve) Assignment Assignment +24 V-A X33 (Pressure sensor calibration inspiration solenoid valve) Assignment Assignment +24 V-A X34 (Pressure sensor calibration expiration solenoid valve) Assignment Assignment +24 V-A Page 80 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 81 X36 (Spare for extension) Assignment Assignment +24 V-A X37 (Spare for extension) Assignment Assignment +24 V-A X38 (Spare for extension) Assignment Assignment +24 V-A X39 (Spare for extension) Assignment Assignment +24 V-A Page 81 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 82 Dräger Medizintechnik X13 X21 Fig. 40: Component mounting diagram of the Pneumatics Controller PCB Page 82 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 83 Patient system heating Pressure sensor HPSV cable harness Pneumatics cable harness Connectors X8 and X7 are identical. Coding takes place via the sensors. Fig. 41: Pneumatics Controller PCB connector configuration Page 83 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 84: Replacing The Pneumatics Controller Pcb

    Dräger Medizintechnik 16.3 Replacing the Pneumatics Controller PCB • Switch the Evita off. • Fold up the electronics assembly (see “Opening the Evita 4”). • Remove the three Phillips screws C. • Loosen the six Phillips screws B. LP Pneumatikansteuerung...

  • Page 85: Tests Possible In Ds Mode

    • Load the relevant software into the Pneumatics Controller PCB. • Mount the rear panel. • Calibrate the PEEP valve (see “Calibrating the PEEP Valve”). • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. 16.4 Tests possible in DS mode 16.4.1...

  • Page 86: Hpsv Controller Pcb

    Do not operate the system for longer periods of time with the rear panel disassembled. 17.1 Power Supply to the HPSV Controller PCB Assignment Assignment +12 V AGND +15 V DGND –15 V +5 V Page 86 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...
  • Page 87 Dräger Medizintechnik Fig. 44: Component mounting diagram of the HPSV Controller PCB Page 87 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

  • Page 88: Replacing The Hpsv Controller O

    Fig. 46: Rear view (rear panel removed) • Mount the new HPSV Controller PCB by following the reverse method used for dismounting. • Check the Evita by following the instructions in the Evita 4/Evita 2 dura Test Certificate. Page 88 5664.500/800 Evita 4/Evita 2 dura...

  • Page 89: Notes Relating To Trouble Shooting

    Diagnosis page “Valves” of “Pneumatics”, page 74. 17.4.2 External DS mode using PC refer to section of "Repair Instructions - Service No./ Modi, Error list" chapter 9.3.2, Mixer, page 129. Page 89 5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions...

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