DOWNLOAD LG 50PW340-UB / 50PW350-UA / 50PW350-UE / 50PW350U-UC (CHASSIS:PU11A) Service Manual ↓ Size: 8.06 MB | Pages: 72 in PDF or view online for FREE

Model
50PW340-UB 50PW350-UA 50PW350-UE 50PW350U-UC (CHASSIS:PU11A)
Pages
72
Size
8.06 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pw340-ub-50pw350-ua-50pw350-ue-50pw350u-uc-chass.pdf
Date
PREV: LG C42PW120-WA (CHASSIS:PC21A) Service Manual

LG 50PW340-UB / 50PW350-UA / 50PW350-UE / 50PW350U-UC (CHASSIS:PU11A) Service Manual ▷ View online

Customer Oriented R&D
Breakthrough
DDR3
256MB(128*2)
DDR3
256MB(128*2)
S7
S7
FHD
LVDS
(Front-end)
(External Input)
EXT_IN
HDMI_D
CVBS_LIVE
TP1
CVBS_LIVE
SIF1
Cab
le
ISDB-T/
PAL/NTSC
(System + Scalar)
IF
I2S_S7R
STA368
STA368
AV1
AV1_LR
COMP1_LR
COMP2_LR
RGB_LR EXT_IN
AV2
AV2_LR
NANDFlash
256MB
NANDFlash
256MB
(Audio Out)
USB2.0
SPDIF
SIF_LIVE
I2S_S7R
(Comp1/2, RGB)
HDMI_Rear(D port)
HDMI_Side (C port)
SIDE HDMI_PORT
UI_HW_PORT1
HDMI_C
Demodulator
MN884433
TP1
Serial_Flash
1MB
Serial_Flash
1MB
(USB)
Rear USB( SVC only )
Side USB
Rear(0)
Side(1)
10. Digital TV Audio Trouble Shooting
Customer Oriented R&D
Breakthrough
10. Digital TV Audio Trouble Shooting
Check video output
Y
Follow procedure All source audio 
trouble shooting
Maybe Mster S7R internal audio 
DSP has problems. 
Replace It
N
Follow procedure digital TV video 
trouble shooting
N
Customer Oriented R&D
Breakthrough
DDR3
256MB(128*2)
DDR3
256MB(128*2)
S7
S7
FHD
LVDS
(Front-end)
(External Input)
EXT_IN
HDMI_D
CVBS_LIVE
TP1
CVBS_LIVE
SIF1
Cab
le
ISDB-T/
PAL/NTSC
(System + Scalar)
IF
I2S_S7R
STA368
STA368
AV1
AV1_LR
COMP1_LR
COMP2_LR
RGB_LR EXT_IN
AV2
AV2_LR
NANDFlash
256MB
NANDFlash
256MB
(Audio Out)
USB2.0
SPDIF
SIF_LIVE
I2S_S7R
(Comp1/2, RGB)
HDMI_Rear(D port)
HDMI_Side (C port)
SIDE HDMI_PORT
UI_HW_PORT1
HDMI_C
Demodulator
MN884433
TP1
Serial_Flash
1MB
Serial_Flash
1MB
(USB)
Rear USB( SVC only )
Side USB
Rear(0)
Side(1)
11. Analog TV Audio Trouble Shooting
Customer Oriented R&D
Breakthrough
11. Analog TV Audio Trouble Shooting
Follow procedure analog TV video 
trouble shooting
N
Check video output
Y
Check SIF Signal
TU1300 #9 Pin
N
Y
N
Y
Follow procedure All source audio 
trouble shooting
N
Maybe Mstar S7R audio block has 
problems. 
Replace It
N
Y
Check Tuner Power
(5.0V, 3.3V, 1.2V)
Replace one of  L506/L509/IC600
& Recheck
Maybe Tuner(TU1300) has problems
Replace one of
C252/R246/R1332/Q1304/R1325
IC600 & Recheck
Check SIF Signal
< SIF waveform – sample >
- Defend on the input signal.
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