LG GW620 - Video camera; Getting to know the viewfinder

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. Technical Brief
3.14.3 KEY
3.14.3.1 side key & power key
There are 4 side key buttons that are controlled by MSM7200A.
Refer to the Side Key circuit. ‘Power Button’ Key is connected to PMIC(PM7540:KPD_PWR_N) &
MSM(PWR_BTN)
Figure. MUSIC Function KEY / Camera AF KEY
KEY_ROW[0]
KEY_ROW[1]
KEY_ROW[2]
KEY_COL[7]
KEY_ROW[0]
KEY_COL[0]
KEY_COL[1]
Figure. SIDE Volume KEY
KEYPAD_BUTTON
KB1
SW1 EVPAHBD6A
C C_
B B_
D A
Function KEY
NEW DOUBLE SWITCH
ESCY0006101
SIDE KEY - AF
FOCUS
SHUTTER
SIDEKEY_4P
CN1
4
3
2
1
KB1
KEYPAD_BUTTON
KB2
KEYPAD_BUTTON
VOL_SIDE_KEY