4. TROUBLE SHOOTING
4.6. Keypad Trouble
TEST POINT
CIRCUIT DIAGRAM
LGE Internal Use Only
R215
R201
R211
R203
R209
R204
KEY MATRIX
END_KEY
1
SW201
R201
KEY_OUT1
680
C205
NA
SW206
4
R203
KEY_OUT2
680
C206
NA
SW211
7
R204
KEY_OUT3
680
C207
NA
SW216
*
R209
KEY_OUT4
680
C215
C216
NA
NA
R211 680
KEY_IN0
R212 680
KEY_IN1
R213 680
KEY_IN2
R214 680
KEY_IN3
R215 680
KEY_IN4
- 60 -
R214
R212
R213
2V0_VRTC
END
SW200
2
3
LEFT
SW202
SW203
SW204
SW207
SW208
SW209
5
6
UP
SW212
SW213
SW214
8
9
RIGHT
SW217
SW218
SW219
0
#
DOWN
C217
C218
C219
NA
NA
NA
Copyright © 2007 LG Electronics. Inc. All right reserved.
SW205
MENU
SW210
SEL
SW215
SEND
C220
NA
Only for training and service purposes