DOWNLOAD LG 50PV490-UC (CHASSIS:PU11L) Service Manual ↓ Size: 9.54 MB | Pages: 72 in PDF or view online for FREE

Model
50PV490-UC (CHASSIS:PU11L)
Pages
72
Size
9.54 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pv490-uc-chassis-pu11l.pdf
Date
PREV: LG 50PV400-UB / 50PV430-UC / 50PV450-UA (CHASSIS:PU14K) Service Manual

LG 50PV490-UC (CHASSIS:PU11L) Service Manual ▷ View online

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)
14. USB Trouble Shooting
14. USB Trouble Shooting
• Exception  
- USB power could be disabled by inrushing current
- In this case, remove the device and try to reboot the TV (AC power off/on)
Check USB 2.0 Cable
Y
Check JK1102 (Normal)
JK1100 (SVC only)
N
Y
Y
Check USB device
If device is 2.5 inch HDD,
Check power adaptor
Replace Jack
Check 5V voltage level 
IC1101 #2 (Normal)
L1100 (SVC only)
N
Replace one of
IC1101, L1100 & Recheck
Y
MaybeMstar S7R (IC101)
has problems. Replace It.
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)
15. 3D Trouble Shooting
LG8300
LG8300
Serial_Flash
2Mb
Serial_Flash
2Mb
DDR2
256Mb(16*16)
DDR2
256Mb(16*16)
RF
emitter
15. 3D Trouble Shooting
Replace Power board
N
Y
Check LG8300 Redownload or 
replace
Check P500 All Voltage Level
( 5V )
Check Power connector
Y
Check Voltage Level 3.3V at IC1406, 
L1404
N
Y
Check Voltage Level 1.0V at L1403
N
Y
Check Voltage Level 1.8V
at IC1407  #2 pin
N
N
Y
N
Replace X200
N
Check X1400 Clock25MHz
Y
Check reset signal
at R1464
N
Check signal transition
IC1402
Y
Y
N
Maybe NAND Flash Memory or 
LG8300 have troubles
Y
Check  DDR Memory 
/Replace one
Check S7R Main chip and Soc_Reset
N
Check P1404
#5(High), #11(High), #12(60Hz)
N
Y
Check RF emitter board or 3D glass
Maybe LG8300(IC1400)
has troubles
Check  DDR Memory 
/Replace one
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