3. TECHNICAL BRIEF
- 49 -
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
͑
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ͑
͑
3.12.3 KEY
3.12.3.1 Side key
There are 2 side key , Send, and END buttons that are controlled by MSM7227.
Refer to the circuit.
Figure. Volume Side key
Figure. End key
Figure. Send key
CN800
4
3
2
1
R810 100
R811 100
R813 100
ZD801
ZD800
ZD802
KEY_ROW[1]
KEY_COL[0]
KEY_COL[1]
VOL_UP
VOL_DOWN
VA801
R814
100K
KB800
PM_ON_SW
END
ZD805
ZD803
KB801
R816
100
R812
100
KEY_ROW[0]
KEY_COL[1]
SEND