4. TROUBLE SHOOTING
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
Can you hear
the sound?
Check the state of TP1
No
Check the state of
TP2 (IC401)
Replace/ Change
No
Yes
Yes
Receiver will
work properly.
SETTING : After initialize Agilent 8960,Set the speech option at continuous wave.
Set the receiving volume of mobile as Max.
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