Vibrator Trouble Shooting - LG L240 Service Manual

4.15 Vibrator Trouble Shooting

z Vibrator operation scheme is shown below
A12
LED_A
B12
LED_B
C12
LED_C
M10
VIBDR
D10
CKEN
C11
REGEN
E8 R117 NA
HSDET
K6 R119
BM_SEL
R121 NA
E7
BM_PRECH
VBACKUP
MOD
VIBRATOR
MODIND_LED
z Vibrator Trouble
Check the voltage of CN601.21
Vibrator has a problem.
VIBRATOR
SYSCLKEN
REGEN
HSDET
1K
17
18
19
20
21
22
23
24
25
START
NO
Voltage is 2.7?
YES
NO
Check the voltage
of vibrator PAD (M+)
Voltage is 2.7?
YES
NO
Check the soldering of
Vibrator of LCD Module
YES
Change Vibrator
- 85 -
4. TROUBLE SHOOTING
21 pin
M- M+
Soldering check
ABB(U101) has a problem.
Replace U101 or change the
board
Check the condition of F-
PCB
If problem, Replace F-PCB
Re-solder Vibrator