Folder On/Off Trouble - LG gd350 Service Manual

4. TROUBLE SHOOTING

4.18 Folder on/off Trouble

CHECKING FLOW
START
Is there the magnet
in the slide?
YES
Voltage at pin 4
of U100 on
FPCB= 1.8V?
YES
Open slide
Voltage at pin 1 of U100 on F
PCB =1.8V
YES
Close slide.
Voltage at pin 1 of U100 on
FPCB = 0V
YES
Folder on/off will
work properly
LGE Internal Use Only
NO
Place the magnet properly.
NO
Voltage of VDD at U100
on Main Board = 1.8V?
YES
Resolder U100
On FPCB
NO
Resolder U100 on FPCB
NO
Replace U100 on FPCB
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4. TROUBLE SHOOTING
NO
Replace U100
On Main Board
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