Sony PCV-RS422X Manual

The lithium battery starts to weaken after several years and the system settings, such as the date and time stored in
CMOS RAM, may become inaccurate. Replace the lithium battery when this occurs. 

   

1.

Write down any changes you may have made to the settings in the BIOS Setup utility. 

2.

Shut down your computer and turn off all peripheral devices, such as your printer. 

3.

Unplug your computer and any peripheral devices. 

4.

. 

5.

If necessary, remove any cables, add-on cards, or other components to access the lithium battery. 

6.

Gently push the battery holder's tab away from the battery and remove the battery from the holder. 

7.

Install the new battery with the plus (+) side facing the battery holder tab.