LG HB620 Service Manual page 160

7. CIRCUIT DIAGRAM
1 2
A
B
KEY_ROW[3]
C
D
E
1 2
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3 4 5
CN102
G1 G2
1 10
KEY_COL[1]
2 9
KEY_COL[2]
3 8
KEY_COL[3]
4 7
5 6
G3 G4
3 4 5
6 7
KB100
KEY_ROW(3)
KEY_COL[1]
KEY_COL[2]
KEY_COL[3]
- 161 -
8 9 10
KB101 KB102
LGE Internal Use Only
A
B
C
D