Motion Sensor Troubleshooting - LG -V909DW Service Manual

4.18 Motion sensor troubleshooting

When the motion sensor does not work, the reason is chip problem. If the motion sensor IC is damaged, it will do
not work even thought power is supplied and T20 controls normally. Therefore if the motion sensor is damaged,
change the motion sensor IC or main board.
LGE Internal Use Only
Start
Motion Sensor function check
(Screen rotation function is
working or not?)
Function is OK?
No
Change the IC (U901)
Function is OK?
No
Change the main board
Function is OK?
Yes
Yes
Yes
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4. TROUBLE SHOOTING
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Only for training and service purposes