Keyboard; Keyboardswitch - NEC PC-8201 Service Manual

4.2.2
Keyboard
( 1 ) Turn off the power: remove the battery case: turn off the backup power
switch.
(If using an AC adapter, remove it also.)
(2)
Remove the PC-8201 cover.
Remove the key board.
(3) Replace the keyboard.
(4)
T o reassemble, follow these steps in reverse.
4.2.3 Keyboard
Switch
(1) Turn off the power: rerriove the battery case: turn off the backup power
switch.
(If using an AC adapter, remove it also.)
(2) Remove the PC-87-01 cover.
Remove the keyboard switch.
( 3 )
Search for the key number of the keyboard switch to be changed. The key
number is written on the keyboard printed circuit board.
(4) Remove the solder from the key switch to be changed.
(When removing solder, be
careful not to damage or cut the pattern.)
( 5 ) PLIII oiit the key top.
( 6 ) Remove the key switch. (Pull up. pinching the lock with pliers.)
(7) When installing a new switch, press it down until it comes into contact with the base
plate.
(8) Solder the new key switch to the keyboard printed circuit board.
( 9 )
Insert the key top.
(
10) Reassemble in reverse order.
60
1
6 1
1621
63
Key Number