Folder On/Off Trouble - LG U8500 Service Manual

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4.15 Folder ON/OFF Trouble

Folder On/Off(Close/Open) is worked as below :
Folder On/Off Event -> Flip(U600 pin 1) is triggered(Open : about 2.6V, Close : 0V) -> MSM6250
Sense the Folder Flip Event.
Sensing signal is directly connected to MSM6250.
Approach the magnet
U600(Flip sense IC)
R600(VREG_MSMP_2.7V)
Start
NO
Check the magnet in
folder Assy
Yes
to U600
NO
FLIP(U600 pin 1) is 0V?
Yes
Change the Main b'd
- 107 -
4. TROUBLE SHOOTING
Insert the magnet
Check the U600
And check the R600
for VREG_MSMP_2.7V

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