DOWNLOAD LG 50PH470U-ZD (CHASSIS:PD32C) Service Manual ↓ Size: 7.54 MB | Pages: 64 in PDF or view online for FREE

Model
50PH470U-ZD (CHASSIS:PD32C)
Pages
64
Size
7.54 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50ph470u-zd-chassis-pd32c.pdf
Date
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LG 50PH470U-ZD (CHASSIS:PD32C) Service Manual ▷ View online

10. Analog TV Audio Trouble Shooting
ATSC
SYSTEM
A:DDR3x16_512 X 2
B:DDR3x16_256 X1
= 1.25GB
IF
X-TAL
ATSC
H/NIM
(W/o AD)
IF
eMMC
(4GB)
Commercial  only
PH6700  only
ATSC  only
F/Nim
Silicon Tuner
USB2 
MTK A2
USB1
USB2
IF
USB1 
NVRAM
(256KB)
(27MHz)
y
(TU option)
Silicon Tuner
Demodulator
Cable
SIF
SIF
SBTVD / DVB
(TU option)
USB3
LVDS
HDMI1
HDMI2
HDMI  RX
HD : 51P
FHD : 80P
USB3
Wi-Fi
USB0
Audio
AMP
I2S Out
HDMI3
RGB,H/V
With EEPROM
FHD : 80P
PC-RGB
MHL Bridge
SIL1292
L/R In
CVBS
AV / COMP
HYBRID
PC-AUDIO
COMP
With EEPROM
I2C
Sub Micom  
(Renesas)
X-TAL
(32.768kHz)
SPDIF OUT
RS-232C
OPTIC
UART
RF Emitter
Module
CVBS/COMP _LR
COMP/ _LR
LAN
Ethernet
10. Analog TV Audio Trouble Shooting
Follow procedure analog TV video 
trouble shooting
N
Check video output
Y
N
Check Tuner Power
(3 3V 1 8V)
Replace one of L6503/L6500
Check SIF Signal
At Tuner (TU65**,  #6 Pin)
N
It the Tuner TDSS-H501F?
Y
(3.3V, 1.8V)
& Recheck
N
Maybe Tuner(TU65**) has problems
Replace it
Y
N
Replace one of 
Q6500, R6516, R6518, R6515, C6522
& Recheck the signal
Y
Maybe Tuner(TU6504) has problems
Replace it
Check DIF Signal
At Tuner (TU6504,  #10, #11 Pin)
Y
N
Maybe LGE2122 (MTK Main IC, 
IC105 ) audio block has problems. 
Replace It
Y
N
Maybe LGE2122 (MTK Main IC, 
IC105 ) audio block has problems. 
Replace It
Replace one of 
R345, R331, R380, R334, R336,
C312, C336m C337, C310
& Recheck the signal
Replace it
Y
11. Component / RGB / AV Audio Trouble Shooting
ATSC
SYSTEM
A:DDR3x16_512 X 2
B:DDR3x16_256 X1
= 1.25GB
IF
X-TAL
ATSC
H/NIM
(W/o AD)
IF
eMMC
(4GB)
Commercial  only
PH6700  only
ATSC  only
F/Nim
Silicon Tuner
USB2 
MTK A2
USB1
USB2
IF
USB1 
NVRAM
(256KB)
(27MHz)
y
(TU option)
Silicon Tuner
Demodulator
Cable
SIF
SIF
SBTVD / DVB
(TU option)
USB3
LVDS
HDMI1
HDMI2
HDMI  RX
HD : 51P
FHD : 80P
USB3
Wi-Fi
USB0
Audio
AMP
I2S Out
HDMI3
RGB,H/V
With EEPROM
FHD : 80P
PC-RGB
MHL Bridge
SIL1292
L/R In
CVBS
AV / COMP
HYBRID
PC-AUDIO
COMP
With EEPROM
I2C
Sub Micom  
(Renesas)
X-TAL
(32.768kHz)
SPDIF OUT
RS-232C
OPTIC
UART
RF Emitter
Module
CVBS/COMP _LR
COMP/ _LR
LAN
Ethernet
11. Component / RGB / AV Audio Trouble Shooting
Y
Check Jack JK3608, JK3603
N
Check equipment / Replace Jack
Check Video Output
N
Follow procedure external input 
video trouble shooting
,
Y
Check Signal
N
q p
p
Replace one of
R3607, R3613, R3620, R3621,
R3601, R3602, R3604, R3605
g
R3620, R3621, R3604, R3605
,
,
,
C3605, C3606, C3607, C3608,
C3601, C3600, C3603, C3604
& Recheck
Y
M
b LGE2122 (MTK M i IC
Follow procedure All source audio 
trouble shooting
N
Maybe LGE2122 (MTK Main IC, 
IC105) audio block has problems. 
Replace It
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