LG DP9821P Service Manual page 47

8. KEY CIRCUIT DIAGRAM
R17
100K
Q1
2N3906
1
R16
22K
R18
22K
1
Q2
2N3904
C4
0.1U
A B C D
TP1
R8
R12
R11
2.7K
2.7K 1.3K
SW2 SW3
SW1
TSM148AF TSM148AF TSM148AF
POWER AV_IN SETUP
TACK SW - TSM148AF
R9
R13
R10
2.7K
2.7K
1.3K
SW9 SW10
SW8
TSM148AF TSM148AF TSM148AF
DOWN UP
E F G H I
3-45
R5 R1
R7
4.7K 9.1K 15K
SW4
SW5 SW6
TSM148AF TSM148AF TSM148AF
TITLE MENU DISPLAY
R6 R3
4.7K 9.1K
SW11
SW12
TSM148AF TSM148AF
RIGHT LEFT ENTER
J K L M
3-46
R2
39K
SW7
TSM148AF
LCD_MODE
R4
0
2
N O P Q
Q5 STZ6.8N
1 3
JP1
1
2
3
4
5
6
HEADER 6
2
R S T