Receiver & Speaker Troublea - LG KF350 Service Manual

4. TROUBLE SHOOTING
4.6 Receiver & Speaker trouble
Check Points
-Speaker contact
-Audio amp soldering
AUDIO_IN
C216
1000p
BB_SND_R
BB_SND_L
FM_SND_R
FM_SND_L
302
S-H10-E3000
LGE Internal Use Only
C215 1u
C217 1u
C218 1u
C219 1u
C220 1u
C222
1u
SDA
SCL
C221 1u
R210 20K
R211 8.2
EAR_P
R212 8.2
EAR_N
2V85_CAM
VBAT
60
59
58
57
56
SDA
55
SCL
54
53
52
CIF_PD
51
CIF_RESET
50
CIF_SCL
49
CIF_SDA
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
9
31
8
7
6
C319 C320 C321
2.2u
1u 1u
VBAT
VBAT
C212 2.2u
C213 1u C214 2.2u
A4
C1N
A5 A1
C1P HPR
A2
HPL
D1
INA2
D2
INA1
U201
C1
MAX9877AEWP_TG45
INB2
C2 D5
INB1 OUT+
B2 B5
BIAS OUT-
B3
SDA
C3
SCL
D4
RXIN+
B4
RXIN-
9 1
INOUT_B1 INOUT_A1
8 2
INOUT_B2 INOUT_A2
7 3
INOUT_B3 INOUT_A3
6 4
INOUT_B4 INOUT_A4
FL303 ICVE10184E070R101FR
ICVE10184E070R101FR
FL305
INOUT_A4 INOUT_B4
4 6
INOUT_A3 INOUT_B3
3 7
INOUT_A2 INOUT_B2
2 8
INOUT_A1 INOUT_B1
1 9
1
INOUT_B1 INOUT_A1
2
INOUT_B2 INOUT_A2
3
INOUT_B3 INOUT_A3
4
INOUT_B4 INOUT_A4
FL307 ICVE10184E070R101FR
C323
47p
C325
27p
C326
47p
Copyright © 2008 LG Electronics. Inc. All right reserved.
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HSO_R
HSO_L
SPK_RCV_P
SPK_RCV_N
C226 C227
27p 27p
CIF_PCLK
CIF_MCLK
CIF_HSYNC
CIF_VSYNC
CIF_D0
CIF_D1
CIF_D2
CIF_D3
CIF_D4
CIF_D5
CIF_D6
CIF_D7
SPK_RCV_P
SPK_RCV_N
Only for training and service purposes