HP (Hewlett-Packard) nx 9420 ユーザーズマニュアル

1. Prepare the computer for disassembly (

2. Remove the memory/Mini Card module compartment cover 

(

).

3. Use a non-conductive, flat-bladed tool to pry the RTC battery 

out of the socket.

Reverse the above procedure to install the RTC battery. Make 
sure the RTC battery is installed with the “+” sign facing up.

RTC battery

409953-001