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
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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
1. Power-Up Boot Fail Trouble Shooting
(Micom)
Rear(0)
Side(1)
1. Power-Up Boot Fail Trouble Shooting
Replace Power board
N
Y
Check SW Redownload or replace
Check P501 All Voltage Level
(17V, 5V, 3.5/5V_ST)
Check Power connector
Y
Check Voltage Level 3.3V at IC504, 
L508
N
If  IC504 Output is normal,
Replace of the IC504
& Recheck
Y
N
Check Voltage Level 1.26V at L503
N
Check R506 voltage level
(3.3V RL_ON) 
Replace one of IC101 & Recheck
N
Y
Check Voltage Level 1.5V
At L502
N
Check R503 voltage level
(ON/OFF Control) 
Replace one of IC101 & Recheck
N
Y
Check Voltage Level 2.5V at L510
N
Replace one of IC101 and application 
circuit & Recheck
N
Y
Check X200 Clock24MHz
N
Replace X200
Y
Check signal transition
at IC103
N
Maybe Serial Flash Memory 
problem
Check signal transition
IC104
Y
Check All Voltage Level
at Bead, RL_ON, IC101 output
N
Replace one of Bead, IC101
& Recheck
Y
N
Maybe NAND Flash Memory or S7R 
have troubles
Y
Check  DDR Memory 
/Replace one
Check S7R Main chip and Soc_Reset
Signal from PM GPIO
N
N
N
DDR3
256MB(128*2)
DDR3
256MB(128*2)
S7R
S7R
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)
2. No OSD Trouble Shooting
2. No OSD Trouble Shooting
Replace Power board
N
Y
Check 5V Voltage Level
at P501
Check Power connector
Y
Check 5V Voltage Level at L507
N
Replace one of L507
& Recheck
Y
Check P1401/P1402
(TXAC-), (TXAC+), (TXBC-), 
(TXBC+), Display Enable
N
Y
Check LVDS Cable
N
Replace Cable
Y
Check PDP Module
Check 5V Voltage Level
at L507, L501
N
Replace one of L507,501
& Recheck
Y
Maybe S7R(IC101)
has troubles
It should satisfy the 
Pixel Clock
on CAS.
Electrical Specifications
Power Supply Sequence
Input Signal Timing Specification
Control Signal Register
Check CAS
Check P501
5V_ON
Check GPIO Path of  PM
N
Y
Check 3D ASIC
*3D Trouble Shooting
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