5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions Page 21
For internal use only. Copyright reserved.
GBR5664500T055664800.fm 18.03.99
Dräger Medizintechnik
D
2.3 Replacing the Battery on the CPU 68332 PCB
• Switch the Evita on and allow it to warm up for 2 minutes (in order to charge the
capacitor for power supply to the RAMs).
• Write down the customer-specific settings (alarm limits, screen layout, etc.) for later
entry in case they get lost.
• Switch the Evita off.
• Remove the CPU 68332 PCB.
• Remove the battery.
Fig. 17: Component mounting diagram CPU PCB (replacing the battery)
• Place the new battery into the battery mount.
• 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.
IMPORTANT
Data loss will occur if the RAM supply voltage is not present. Replace the
battery within one minute’s time. Pay attention to correct polarity when
installing the battery.
1
4
X5 X6 X7
1
2
X4
1
X9
X11
+5 V
GND
+
1
7
X20
X13
X10
C400
+5 V-ISO
GND
+
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