3. TECHNICAL BRIEF
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Only for training and service purposes
LGE Internal Use Only
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3.12.3 KEY
3.12.3.1 Side key
There are 2 side key , Send, and END buttons that are controlled by MSM7227T.
Refer to the circuit.
Figure. Volume Side key
Figure. End key
I
N
D
83
7
R
CN704
4
3
2
1
KEY_COL[2]
KEY_ROW[1]
KEY_ROW[0]
KB101
KPD_PWR_N