LG U8550 Service Manual page 99

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4. TROUBLE SHOOTING
Keypad signals to MARITA and VINCENNE through board-to-board
connector.
1
13
Pin #16 ~ #21
KEYIN0
KEYIN1
KEYIN2
KEYIN3
KEYIN4
OMSWAn
24
KEYOUT5
KEYOUT4
KEYOUT3
KEYOUT2
KEYOUT1
KEYOUT0
Pin #4 ~ #9
1
CN703
12
CN1
- 100 -
12
KEYOUT5
KEYOUT4
KEYOUT3
KEYOUT2
KEYOUT1
KEYOUT0
Pin #4 ~ #9
1
13
Pin #16 ~ #21
KEYIN0
KEYIN1
KEYIN2
KEYIN3
KEYIN4
OMSWAn
24

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