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LGE Internal Use Only
Copyright © 01 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
C510
0.1u
0.1u
C515
12
R508
R509
12
1u
C507
C508
1u
0
31
5
R
600
FB505
FB504
600
C517
2.2u
C514
39p
M501
3
D
1
C
2
E
2
A
C2
B2
B4
A4
B3
E1
A3
D1
A1
C3
B1
E4
E3
C4
4
D
2
D
D
D
V
P
H
D
D
V
P
S
IN3-
OUT+
OUT-
HPL
IN3+
HPR
CP
IN1+
CN
IN1-
IN2+
IN2-
SDA
SCL
S
AI
B
D
D
V
P
C
S
S
V
P
C
D
N
G
C513
39p
20
5
R
0
C518
2.2u
C516
2.2u
C519
2.2u
C503
10u
2.2u
C505
VBAT
0.1u
C504
VDD_IO_1V8
HS_OUT_R
HS_OUT_L
HS_GND
I2C_SDA
I2C_SCL
SPK_P
SPK_N
SPK_HS_L
SPK_HS_R
RCV_HS_N
RCV_HS_P
TP1
TP2
TP3
TP4
START
< Cal l >
Check the state of
contact of receiver
Replace/Change
Receiver Speaker
No
Receiver Working well!!
Yes
Yes
Check the Audio signal
C507,C508,C510,C515
(TP01~04)
Yes
Change the U01
No
Check the Audio signal
L504,L505
(TP7,08)
Replace/Change the M501
No
START
< Mp3>
Check the state of
contact of speaker
Speaker Working well!!
Yes
Check the Audio signal
C507,C508,C510,C515
(TP1~4)
Yes
Check the Audio signal
L504,L505
(TP5,06)
No
No
No
Yes