LG 50PM4700-DA (CHASSIS:PB22A) Service Manual ▷ View online
15. Digital TV Recording Fail Trouble Shooting
SPDIF OUT
NAND
Flash(8Gb)
USB0
Audio
AMP
I2S Out
MTK5369
USB1
USB2
USB2
RS-232C
PC-RGB
OPTIC
LAN
SYSTEM
DDR3x16_2Gb X
4
(8Gb)
LVDS
HDMI1
HDMI2
HDMI3
HDMI4
HDMI4
RGB,H/V
With EEPROM
Ethernet
CVBS
UART
HDMI
With
EEPROM
RF Emitter
Module
I2C
Sub
Micom
(Renesas
)
Parallel TS
HD : 51P
FHD : 80P
USB2
USB1
NVRAM
(1Mb)
X-TAL
(27MHz)
HDCP
Wi-Fi
CVBS
F/Nim
Silicon Tuner
F/Nim
Silicon Tuner
Parallel TS
X-TAL
(32.768kH
z)
eMMC
(4GB)
Demodulation
Cable
CVBS1/2 _LR
COMP1/2 _LR
CVBS1/2 _LR
COMP1/2 _LR
CVBS
CVBS/COMP2
COMP
RGB_LR
COMP1
COMP
PC-AUDIO
N
Y
Check USB block
N
Use USB Trouble shooting guide
Y
Check HDD
N
Replace HDD
Y
Check video/audio output
Follow procedure digital TV
video/audio trouble shooting
video/audio trouble shooting
Maybe BCM2112(IC100) USB block
has problems. Replace It.
15. Digital TV Recording Fail Trouble Shooting
16. OPTIC Audio Out Trouble Shooting
SPDIF OUT
NAND
Flash(8Gb)
USB0
Audio
AMP
I2S Out
MTK5369
USB1
USB2
USB2
RS-232C
PC-RGB
OPTIC
LAN
SYSTEM
DDR3x16_2Gb X
4
(8Gb)
LVDS
HDMI1
HDMI2
HDMI3
HDMI4
HDMI4
RGB,H/V
With EEPROM
Ethernet
CVBS
UART
HDMI
With
EEPROM
RF Emitter
Module
I2C
Sub
Micom
(Renesas
)
Parallel TS
HD : 51P
FHD : 80P
USB2
USB1
NVRAM
(1Mb)
X-TAL
(27MHz)
HDCP
Wi-Fi
CVBS
F/Nim
Silicon Tuner
F/Nim
Silicon Tuner
Parallel TS
X-TAL
(32.768kH
z)
eMMC
(4GB)
Demodulation
Cable
CVBS1/2 _LR
COMP1/2 _LR
CVBS1/2 _LR
COMP1/2 _LR
CVBS
CVBS/COMP2
COMP
RGB_LR
COMP1
COMP
PC-AUDIO
Check Signal (JK505 #3)
Check SPDIF signal (R506)
Replace BCM2112
Y
N
16. OPTIC Audio Out Trouble Shooting
Y
Maybe BCM2112 (IC100)
has problems. Replace It.
Click on the first or last page to see other 50PM4700-DA (CHASSIS:PB22A) service manuals if exist.