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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
3.6.3 Side Key
There are 4 main key buttons that are controlled by MSM7227. Refer to the Side Key circuit. ‘Power Button’
Key is connected to PMIC(PM7540:KPD_PWR_N).
3. Technical Brief
Table. Key Matrix Mapping Table
Figure. Power ON / OFF & Suspend Button Key circuit
KEY_COL[0]
KEY_COL[1]
KEY_ROW[0]
FOCUS
VOL_DOWN
KEY_ROW[1]
SHUTTER
VOL_UP
470
R306
D302
KB300
PM_ON_SW
POWER ON
Содержание GD88O
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