LG 50PG60D-SA (CHASSIS:PB82C) Service Manual ▷ View online
- 33 -
Analog TV Audio Trouble Shooting
Check video output
Follow procedure All source audio trouble
shooting
Y
Follow procedure analog TV video
trouble shooting
N
N
Maybe BCM3553 audio block has
problems. Replace it
Check L801 voltage level 5V
Replace it
N
Y
Check SIF signal
C801 / C806 / Q800
Replace it
N
Y
Check SIF signal
R726 / C665
Replace it
N
Y
- 34 -
Flash
(32MB)
DDR1(128MB)
(16Mx16x4)
DDR1(128MB)
(16Mx16x4)
TEA6420
Audio
SW
MTV416
(Micom
)
NTP3000
(Digital AMP)
64Bit I/F
RGB-PC
HDMI
1/2/3
COMP 1
COMP 2
AV1
AV2
RGB-PC
I2S
MCLK
Digital out
COMP1
COMP2
AV1
AV2
BCM7412
(MPEG4
Decoder)
Analog
/Digital
Tuner
TC90512
DVI
I2S
SIF
SPDIF Out
CVBS
CVBS/Y/C
Y/
Cb
/Cr
R/G/B
DDR1
(32MB)
CS5340
L/R
Serial TP
20bits
12bit YCbCr
4:4:4
NIM TUNER
TMDS_RX+-
EPM240F
MNT out (Audio Only)
TMDS341A
(3x1,S/W)
CVBS/Y/C
MC33078
(AMP)
L/R
RS232
RX/TX
DVI
Full HD(1080P)
WXGA(768P)
RF
Switch
DM1/DP1
Serial
TP
74HC04
SPDIF Out
(Coaxial)
Video
Front
End
Dual
HDMI
Rx
HD/SD
Video
Encoder
Audio
DSP
USB2.0
PKT
HSX
PCI/
EBI
HD-DVI
IB0
Parse2
RSBUF
XCBUF
RMX0
BCM3553
Local KEY
24C16
74LVC14APW
X-tal(54M)
Reset
KIA7029
NVRAM
I2C
Component / RGB / AV Audio Trouble Shooting
20bit YCbCr
4:2:2
- 35 -
Component / RGB / AV Audio Trouble Shooting
Check video output
Y
Follow procedure external
input video trouble shooting
N
Check Connector
J700 / J702 (Component)
J703 (RGB)
J701 / P700 & cable (AV Rear, AV Side)
Replace connector
N
Y
Check signal
C734 / R746 / C735 / R752 (Component1)
C736 / R829 / C737 / R833 (Component2)
C733 / R837 / C732 / R838 (RGB)
C701 / R816 / C700 / R817 (AV Rear)
C729 / R858 / C728 / R859 (AV Side)
Replace it
N
Y
Check IC500 power L512 voltage level 9V
Replace it
N
Y
Check signal
R532 / R533 / C555 / R568 / C563 / R582
Replace it or IC500
N
Y
Check IC503 power L513 voltage level 9V
Replace it
N
Y
Check signal
C554 / R569 / R581 / C562
Replace it or IC503
N
Y
Check IC502 power L514 voltage level
3.3V & L515 voltage level 5V
Replace it
N
Y
Check IC502 power L514 voltage level
3.3V & L515 voltage level 5V
Replace it
N
Y
Check I2S signal
R548 / R549 / R550
Replace it or IC502
N
Y
Check Audio clock
R134
Replace it
N
Y
Maybe BCM3553 has problems
- 36 -
HDMI Audio Trouble Shooting
Flash
(32MB)
DDR1(128MB)
(16Mx16x4)
DDR1(128MB)
(16Mx16x4)
TEA6420
Audio
SW
MTV416
(Micom
)
NTP3000
(Digital AMP)
64Bit I/F
RGB-PC
HDMI
1/2/3
COMP 1
COMP 2
AV1
AV2
RGB-PC
I2S
MCLK
Digital out
COMP1
COMP2
AV1
AV2
BCM7412
(MPEG4
Decoder)
Analog
/Digital
Tuner
TC90512
DVI
I2S
SIF
SPDIF Out
CVBS
CVBS/Y/C
Y/
Cb
/Cr
R/G/B
DDR1
(32MB)
CS5340
L/R
Serial TP
20bits
12bit YCbCr
4:2:2
NIM TUNER
TMDS_RX+-
EPM240F
MNT out (Audio Only)
TMDS351
(3x1,S/W)
CVBS/Y/C
MC33078
(AMP)
L/R
RS232
RX/TX
DVI
Full HD(1080P)
WXGA(768P)
RF
Switch
DM1/DP1
Serial
TP
Video
Front
End
Dual
HDMI
Rx
HD/SD
Video
Encoder
Audio
DSP
USB2.0
PKT
HSX
PCI/
EBI
HD-DVI
IB0
Parse2
RSBUF
XCBUF
RMX0
BCM3553
Local KEY
24C16
74LVC14APW
X-tal(54M)
Reset
KIA7029
NVRAM
I2C
20bit YCbCr
4:2:2
Click on the first or last page to see other 50PG60D-SA (CHASSIS:PB82C) service manuals if exist.