Wire

Voltage (V dc)

 

 

Red

+2.5 to +3.2

 

 

Black

Ground

 

 

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.

Chapter 3. General checkout 33

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Lenovo 3093AC6 manual Wire Voltage V dc