LG 42PB4D-AA (CHASSIS:PB73B) Service Manual ▷ View online
- 25 -
AT/NT
TUNER
X260
TP A
HDMI 1/2/3
TP C
SIF
SIF IN 1
NTP
3000
SIF IN 2
I2S IN 1
I2S IN 2
I2S OUT 1
SPDIF
ıÛ
CS8416
I2S
I2S
I2S
I2S
S/PDIF
SPDIF
ANT/Cable
TP
MSP4450K
I2S
I2S
I2SI 3
I2SO 1
MCLK
MCLK
SPDIF OUT
Optical
Coaxial
EXT1/2
RGB
COMP 1/2
SIF
L/R
L/R
L/R
L/R
MSP4450K
MNT
OUT
I2SI 3
I2SO 1
SC 2
2. Audio
(3) TV RF No Sound
- 26 -
EXT1/2
AT/NT
TUNER
X260
TP A
HDMI 1/2/3
TP C
RGB
COMP 1/2
SIF
SIF IN 1
NTP
3000
SIF IN 2
I2S IN 1
I2S IN 2
I2S OUT 1
SPDIF
ıÛ
CS8416
I2S
I2S
I2S
I2S
S/PDIF
SPDIF
L/R
L/R
L/R
L/R
ANT/Cable
TP
MSP4450K
MNT
OUT
I2S
I2S
I2SI 3
I2SO 1
SC 2
MCLK
MCLK
SPDIF OUT
Optical
Coaxial
2. Audio
(4) DTV No Sound
- 27 -
Check SIF lines
C6025, C6026
Check MSP4450K (IC508) inputs
C5016, #67pin
1
2
3
4
5
6
Follow the procedure of
“
COMMON SOUND OUT
”
7
8
Check Tuner (TU600)
5V (3,5,9,17 pin), SIF(18 pin)
Check Antenna Cable
Check X260 (IC101)
Intputs
R175(SCLK), R176(LRCLK), R177(DATA)
Check MSP4450K (IC508) Power
Check MSP4450K (IC508) outputs
R5039(SCLK), R5040(LRCLK), R5043(DATA)
TV RF No Sound
TV RF No Sound
1
2
3
4
Follow the procedure of
“
COMMON SOUND OUT
”
Check Tuner (TU600)
5V (3,5,9,17 pin), IF_N(15 pin), IF_P(14pin)
Check Antenna Cable
Check X260 (IC101)
DTV No Sound
DTV No Sound
2. Audio
(5) TV RF No Sound / DTV No Sound
- 28 -
EXT1/2
AT/NT
TUNER
X260
TP A
TP C
RGB
COMP 1/2
SIF
SIF IN 1
NTP
3000
SIF IN 2
I2S IN 1
I2S IN 2
I2S OUT 1
SPDIF
ıÛ
CS8416
I2S
I2S
I2S
I2S
S/PDIF
SPDIF
L/R
L/R
L/R
L/R
ANT/Cable
TP
MSP4450K
MNT
OUT
I2S
I2S
I2SI 3
I2SO 1
SC 2
MCLK
MCLK
SPDIF OUT
Optical
Coaxial
HDMI 1/2/3
2. Audio
(6) AV/Component/RGB No Sound
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