Sony PlayStation Portable Mode D'emploi page 22

2
Insert a new lithium coin battery (CR202).
Insert the battery so that the + side is facing up.

Replace the battery cover on the remote control.
Push the cover into place, making sure it is inserted completely.
Hint
If the battery is exhausted, or if the remote control has not been used for a while (with the
battery removed), you may need to reset the remote control to operate with your TV.
22
Using the remote control