DOWNLOAD LG 50PZ750-UG (CHASSIS:PU12A) Service Manual ↓ Size: 12.92 MB | Pages: 75 in PDF or view online for FREE

Model
50PZ750-UG (CHASSIS:PU12A)
Pages
75
Size
12.92 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pz750-ug-chassis-pu12a.pdf
Date
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LG 50PZ750-UG (CHASSIS:PU12A) Service Manual ▷ View online

Great Company  Great People
RGB Video Trouble Shooting
Check input signal format
Is it supported?
Check signal, Hsync, Vsync
R801, R802
Replace R801,R802
Check signal
L803,L804,L805
Y
N
Check P801
Replace connector (P801).
Y
N
Y
Replace L803,L804,L805
N
Replace BCM35230
Y
Check RGB Cable conductors for 
damage
Y
※ Measured signals depend on the input signal.
21/39
Great Company  Great People
22/39
AV1,2 L/R
COMP 1,2 L/R
Side HDMI 1/2/3/4
CVBS waveform
IF waveform
STA368
(Digital AMP)
Reset
I2S
LGE35230
MCLK
HDMI CEC
IR
CVBS
Buffer
SIF
Buffer
RS-232C
I2C
CVBS(ATV)
NTSC/ATSC
TUNER
X-tal
(54MHz)
NAND Flash
(8GB)
DDR3 (2GB)
TDVJ-H101F
24C16
24C16
Local
Local
KEY
KEY
MAIN IF
DP/DM
DP/DM
NEC
NEC
Micom
Micom
COMP1
COMP2
Y/Cb/Cr
Y/Cb/Cr
R/G/B 
RGB-PC
Rear AV
CVBS
Side AV
CVBS
L/R
L/R
RGB-PC 
Audio In
SIF
Audio
Front 
End
Video 
Front 
End
TMDS/DDC
HDMI 
RX
I2C
HD/SD
Video
Encoder
Audio
DSP
SPDIF Out
UART
RX/TX
UART
UART
USB 2.0
RMII
RMII
DDC
SIF
SII9287B
HDMI SW
LAN
LAN
3DF_ASIC
LG8300
3DF_ASIC
LG8300
DDR2
(256Mbit)
X-tal
(25MHz)
Serial_Flash
(2Mbit)
LVDS 2Ch
Left (2D):
1920x1080/60Hz
LVDS
 (
 8
0
Pin
 )
LVDS 2Ch
Right(2D) :
1920x1080/60Hz
AV Video Trouble Shooting
Great Company  Great People
AV Video Trouble Shooting
Check input signal format
Is it supported?
Check signal
R1115(Rear AV),  R1142 (Side AV)
Replace Resistor
Y
N
Check AV port of JK1100 (Rear)
Check JK1101 (Side)
Replace or reseat connector
Y
N
Y
Replace BCM35230(IC101)
Check AV Cable / S-Video Cable for damage or 
open conductors
Y
23/39
※ Measured signals depend on the input signal.
Great Company  Great People
24/39
AV1,2 L/R
COMP 1,2 L/R
Side HDMI 1/2/3/4
CVBS waveform
IF waveform
STA368
(Digital AMP)
Reset
I2S
LGE35230
MCLK
HDMI CEC
IR
CVBS
Buffer
SIF
Buffer
RS-232C
I2C
CVBS(ATV)
NTSC/ATSC
TUNER
X-tal
(54MHz)
NAND Flash
(8GB)
DDR3 (2GB)
TDVJ-H101F
24C16
24C16
Local
Local
KEY
KEY
MAIN IF
DP/DM
DP/DM
NEC
NEC
Micom
Micom
COMP1
COMP2
Y/Cb/Cr
Y/Cb/Cr
R/G/B 
RGB-PC
Rear AV
CVBS
Side AV
CVBS
L/R
L/R
RGB-PC 
Audio In
SIF
Audio
Front 
End
Video 
Front 
End
TMDS/DDC
HDMI 
RX
I2C
HD/SD
Video
Encoder
Audio
DSP
SPDIF Out
UART
RX/TX
UART
UART
USB 2.0
RMII
RMII
DDC
SIF
SII9287B
HDMI SW
LAN
LAN
3DF_ASIC
LG8300
3DF_ASIC
LG8300
DDR2
(256Mbit)
X-tal
(25MHz)
Serial_Flash
(2Mbit)
LVDS 2Ch
Left (2D):
1920x1080/60Hz
LVDS
 (
 8
0
Pin
 )
LVDS 2Ch
Right(2D) :
1920x1080/60Hz
HDMI Video Trouble Shooting
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