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5. Trouble shooting
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
START
Touch IC is well
soldered?
Assemble
Yes
Yes
No
Check Touch Connector
Combination
Yes
No
Chan
g
e the Touch window
Yes
Check the voltage
of TP1~4. Voltage is
2.8V?
Resolder FL403 or
Replace Main Board
Check the voltage
of TP5~8. Voltage is
2.8V?
Replace Main or
SUB FPCB
Rosolder Touch IC
TP5
TP6
TP7
TP8
TP1~ 3
TP4