Camera Key - LG GT540 Service Manual

3.12.3 KEY
3.12.3.1 Side key
There are 4 side key buttons that are controlled by MSM7227.
Refer to the circuit.
CN100
1
2
KEY_ROW[0]
3
KEY_ROW[1]
4
KEY_COL[1]
5
KEY_ROW[2]
3.12.3.2 QTKEY
There are 2 Front buttons(SEND,HOME) that are controlled by MSM7227.
'Power Button' Key is connected to PMIC(PM7540:KPD_PWR_N)
Refer to the circuit.
SEND
KEY_COL[2]
KEY_ROW[0]
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
HOT_KEY
KB100
Figure. Side key
HOME
SEND
KEY_COL[2]
KEY_ROW[1]
Figure. Front key
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3. TECHNICAL BRIEF

CAMERA KEY

SW100
C_
capture
B_
AF
A
POWER KEY / END
KPD_PWR_N
C
B
D
LGE Internal Use Only