LG U990 Service Manual page 60

KEY_ROW[0]
KEY_ROW[1]
KEY_COL[0]
KEY_COL[1]
PM_ON_SW_N
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure. Side Keypad Circuit
END
END
ON_SW KEY
Figure. END Keypad Circuit
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3. TECHNICAL BRIEF
1100
SW1100
LOCK KEY
CAMERA
FOCUS
LGE Internal Use Only