Lenovo ThinkPad X200s Hardware Maintenance Manual page 49
Hardware maintenance manual
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Also See for ThinkPad X200s:
- Hardware maintenance manual (208 pages) ,
- Service and troubleshooting manual (112 pages) ,
- Manual de assistência e resolução de problemas (102 pages)
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5. Measure the voltage of the backup battery. See the following figure.
• If the voltage is correct, replace the system board.
• If the voltage is not correct, replace the backup battery.
• If the backup battery discharges quickly after replacement, replace the system board.
Wire
Voltage (V dc)
Red
+2.5 to +3.2
Black
Ground
.
Chapter 3
General checkout
43
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