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6.6 Receiver & Speaker trouble
Check Points
-Speaker pin contact
-Audio amp soldering
-SUB PMIC soldering
- 95 -
6. Trouble shooting
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Stereo DAC & AMP
Stereo DAC & AMP
R212
DNI
C208
0.1u
22u
C206
1u
C237
C232
1u
0
R214
C239
1u
1u
C207
C236
1u
C227
100u
D4
RIN2
D6
D5
RIN3_GPI8
RIN4_RXP
E5
D2
RON
ROP
E1
ROUT
B5
F1
SCLK
E3
SDIN
SPKGND
B1
C1
SPKN
SPKP
A1
B2
SPKVDD
VMID
C3
GPIO4_DACLRC2
G1
GPIO5_DACDAT2
B3
HPGND
HPVDD
A5
LIN1
D3
C5
LIN2
LIN3_GPI7
C6
LIN4_RXN
B6
C2
LON
D1
LOP
LOUT
B4
F5
MCLK
MICBIAS
A2
E2
MODE
OUT3
A4
C4
OUT4
RIN1
U203
WM8990ECS_RV
F4
ADCDAT
ADCLRC_GPIO1
E4
A3
AGND
A6
AVDD
BCLK
G5
CSB_ADDR
F2
DACDAT
F3
DACLRC
G4
G6
DBVDD
DCVDD
F6
E6
DGND
G2
GPIO3_BCLK2
G3
4.7u
C219
C233
1u
C231
100u
4.7u
C216
1u
C230
FB201
75
C240
47p
0.1u
C214
VAUX_2V9
4.7u
C203
47p
C241
R222
100K
1u
C229
1u
C238
FB205
FB206
TP210
VIO_2V62
VBAT
TP211
VMIC
I2S2_WA0
MIC_P
HS_MIC_P
AMPIN_L
AMPIN_R
I2S2_TX
26M_TVOUT
MCLK_ATI
I2S_CLK
I2S_WS
I2S_SDO
FM_SND_L
FM_SND_R
I2C_SCL
I2C_SDA
HSO_L
HSO_R
MIC_N
SPK_N
SPK_P
HS_MIC_N
C243
47p
ICVL0518400V500FR
VA201
C244
47p
1
2
CN201
VA202
ICVL0518400V500FR
C242
27p
SPK_N
SPK_P
RECEIVER
VA?
ICVL0505101V150FR
ICVL0505101V150FR
VA?
47p
C102
L102
100nH
27p
C101
C103
47p
100nH
L101
EAR_P
EAR_N
EAR_P
EAR_N
TP1
TP2
TP3
Содержание KC550
Страница 1: ...Date May 2008 Issue 1 0 Service Manual Model KC550 Service Manual KC550 Internal Use Only ...
Страница 129: ... 130 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 155: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 156 ...
Страница 182: ...Note ...
Страница 183: ...Note ...