Vibrator Trouble Shooting - LG GD330 Service Manual

4. TROUBLE SHOOTING

4.20. Vibrator Trouble Shooting

Vibrator operation scheme is shown below
K 1 1
C L K 3 2 K O U T
A 1 2
L E D _ A
B 1 2
L E D _ B
C 1 2
L E D _ C
M 1 0
V B I D R
D 1 0
C K E N
C 1 1
R E G E N
Vibrator Trouble
START
Check the voltage
betweenTP1
YES
Check the soldering of Pad
YES
Check the Main FPCB
YES
Check the wiring of
Vibrator
YES
Vibrator has a problem.
Change Vibrator
LGE Internal Use Only
C L K _ 3 2 K
L n i e w d i h t 0 1 . m m
N U M _ L E D _ C
S Y S _ C L K _ E N
E X T _ L D O _ E N
NO
and TP2 is 3v?
NO
NO
NO
TP1
LDO(U306 Main PCB ) has a problem.
Replace U306 or change the board
Check the condition of VIB Pad (FPCB)
If problem, Re-solder the VIB Pad
Change the Main FPCB
Fix the wires or replace the
vibrator
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TP2
Soldering check
Only for training and service purposes