4. TROUBLE SHOOTING
- 77 -
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Only for training and service purposes
LGE Internal Use Only
START < Cal l >
Check the state of
TP1 (SPK)
Replace/ Change
Yes
Speaker
Working well!!
No
Check the state of
TP2 (IC401)
Replace/ Change
No
Check the state of
TP1 (SPK)
Yes
Check the state of
TP2 (IC401)
Yes
START < Mp3>
Yes
Speaker
Working well!!
No
No
IC401
B3
A4
C3
C2
B2
D1
D3
D4
C1
A1
D2
B1
D5
A2
A5
A3
B5
B4
C5
C4
GN
D
OUT+
HPVD
D
CPVDD
CPVSS
CN
HPL
OUT-
BIAS
IN2-
HPR
IN1+
SVD
D
IN3-
IN2+
SD
A
IN1-
IN3+
CP
SC
L
C206
1u
C211
1u
C207
1u
C208
1u
FB201
600
C217
2.2u
1
2
FB202
600
2.2u
C203
R205
20
R206
20
VIO_1V8
C266
0.1u
C267
0.1u
2.2u
C200
2.2u
C218
VBAT
2.2u
C219
C264
DNI
1
2
C201
0.1u
1
2
C214 2.2u
1
2
39pF
C216
1
2
C215
39pF
2.2u
C204
1
2
2.2u
C205
1
2
I2C_SDA2
I2C_SCL2
HS_OUT_R
HS_OUT_L
HS_L
HS_R
SPEECH_P
SPEECH_N
Changed (12/3)
Place 0.1uF close to AMP
DCR 60ohm --> 600 ohm (10/31)
Swapped (10/31)
TP2