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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Folder on/off will
work properly
Is there the magnet
in the Folder?
START
Replace U102
Place the magnet properly.
NO
YES
Voltage at pin 1
of U101 = 2.93V?
YES
NO
Voltage of VEXT at U102
= 2.93V?
NO
Resolder U101
YES
Open Folder.
Voltage at pin 1 of U101
=2.93V
Resolder U101
NO
YES
Close folder.
Voltage at pin 1 of U101
= 0V
YES
Replace U101
NO
CHECKING FLOW
YES
Check the soldering
of C145
Resolder C145
NO
4.16 Folder on/off Trouble