LG 50PM6700-TK (CHASSIS:PA22A) Service Manual ▷ View online
SPDIF OUT
CVBS
USB0
Audio
AMP
I2S Out
MTK5369
USB2
USB1
CVBS/COMP
RS-232C
PC-RGB
OPTIC
LAN
SYSTEM
DDR3x16_2Gb X 4
(8Gb)
LVDS
HDMI1
HDMI2
HDMI3
HDMI4
COMP
RGB,H/V
With EEPROM
Ethernet
UART
HDMI
With
EEPROM
RF Emitter
Module(Bluetooth)
I2C
Sub Micom
(Renesas)
HD : 51P
FHD : 80P
FHD : 80P
USB2
USB1
NVRAM
(1Mb)
X-TAL
(27MHz)
HDCP2.0
Wi-Fi
X-TAL
(32.768kHz)
eMMC
(2GB)
RGB_LR
PC-AUDIO
CVBS/COMP LR
CVBS/COMP LR
11. Analog TV Audio Trouble Shooting
COMP
COMP
COMP LR
COMP LR
DIF
CVBS
CVBS
DVB T F/NIM
Silicon Tuner
DVB T F/NIM
Silicon Tuner
DIF
Follow procedure analog TV
video trouble shooting
N
Check video output
Y
Check SIF Signal
TU1001 #6 Pin
N
Y
Check SIF Signal
C241
N
Replace one of
Q1001, C1000, R1006, R1012,
R1013
& Recheck
Y
Follow procedure All source
audio trouble shooting
N
Maybe MTK5369(IC100) audio
block has problems. Replace It
N
Y
Check Tuner Power
(3.3V, 1.8V)
Replace one of L1108/L1109
& Recheck
Maybe Tuner(TU1000) has
problems
11. Analog TV Audio Trouble Shooting
SPDIF OUT
CVBS
USB0
Audio
AMP
I2S Out
MTK5369
USB2
USB1
CVBS/COMP
RS-232C
PC-RGB
OPTIC
LAN
SYSTEM
DDR3x16_2Gb X 4
(8Gb)
LVDS
HDMI1
HDMI2
HDMI3
HDMI4
COMP
RGB,H/V
With EEPROM
Ethernet
UART
HDMI
With
EEPROM
RF Emitter
Module(Bluetooth)
I2C
Sub Micom
(Renesas)
HD : 51P
FHD : 80P
FHD : 80P
USB2
USB1
NVRAM
(1Mb)
X-TAL
(27MHz)
HDCP2.0
Wi-Fi
X-TAL
(32.768kHz)
eMMC
(2GB)
RGB_LR
PC-AUDIO
CVBS/COMP LR
CVBS/COMP LR
12. Component / RGB / AV Audio Trouble Shooting
COMP
COMP
COMP LR
COMP LR
DIF
CVBS
CVBS
DVB T F/NIM
Silicon Tuner
DVB T F/NIM
Silicon Tuner
DIF
Y
Check Jack JK501/JK504
N
Y
Check Signal
C537/C538/C539/540/C541/C542
N
Check equipment / Replace Jack
Check Video Output
Replace one of
C537/C538/C539/540/C541/C542
& Recheck
N
Follow procedure external input
video trouble shooting
Y
Follow procedure All source
audio trouble shooting
N
Maybe MTK5369(IC100) audio
block has problems. Replace It
12. Component / RGB / AV Audio Trouble Shooting
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