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4. TROUBLE SHOOTING
4.14 Vibrator Trouble
TEST POINT
Check Points
-Vibrator contact is right
-MOTOR_P signal working correctly
WAVE FROM
CIRCUIT
R16
OSC32KIN
T16
OSC32KOUT
P16
CLK32KOUT
C16
LED_A
E17
LED_B
F17
LED_C
U12
VIBDR
H12
CKEN
CKEN
G12
REGEN
F16
HSDET
JACK_DETECT
M8
BM_SEL
B16
BM_PRECH
C111
0.1u
M16
VBG
L12
IREF
R106
120K
M17
REFGND
R107
10
R17
VBACKUP
B11
VAC
A12
PCHGAC
LGE Internal Use Only
TP1
EAR_P
CLK32K
EAR_N
MLED1
MLED2
MOTOR_P
MOTOR_P
IND_LED_B
IND_LED_R
VA300
varistor
NA
VCHG
- 72 -
U304
VA302
VA303
C315
C314
VA301
1000p
0.1u
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CN301
C316
33
32
31
30
29
28
TP 1
CN301
C316
1u
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