Keypad Trouble - LG GB195 Service Manual

4.4 4.4

Keypad Trouble

Keypad Trouble
4.4 4.4 Keypad Trouble Keypad Trouble
4.4.1 Test Point
4.4.2 Circuit Diagram
Main KEY PAD
1
1
1 KROW2
1 KROW3
V702
1 KROW4
V703
1 KCOL0
KROW0
S700
SEND
KROW1
S704
LEFT
V701 S708
1
S712
2
S716
3
1 KCOL1 1
S701
OK SOFT_L
S705
RIGHT DOWN
S709
4
S713
5
S717
6
-58-
KCOL2 1 KCOL3
S702 S703
SOFT_R
S706 S707
UP
S710 S711
7 *
S714 S715
8 0
S718 S719
9 #