Only For Training And Service Purposes - LG KP210 Service Manual

4. TROUBLE SHOOTING
CHECKING FLOW
START
Is there the magnet
in the Folder?
YES
Voltage at pin 1
of U201 = 2.8V?
YES
Open Folder.
Voltage at pin 2 of U201
=2.8V
YES
Close folder.
Voltage at pin 2 of U201
= 0V
YES
Folder on/off will
work properly
LGE Internal Use Only
NO
Place the magnet properly.
NO
Voltage of VMEM at U102
= 2.8V?
YES
Resolder U201
NO
Resolder U201
NO
Replace U201
- 82 -
NO
Replace U102
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Only for training and service purposes