LG KG271 - Page 73

4. TROUBLE SHOOTING
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Checking Flow
Start
Check the voltage level
of U100 = Vbat?
No
Check
The battery
Yes
Check the Signal,
C117,C118
Yes
No
Check
U102
Check the Level of
U100.C3 = Low ?
No
Check
U102
Check the Contact
Of CN101
Yes
No
Re-Assemble
or Re-place
Speaker
Try again
or Change the Board
Yes
Re-solder
L102,L103
Check the Signal,
L102,L103
Yes
No