LG 47LZ9600-JA (CHASSIS:LE13F) Service Manual ▷ View online
Standard Repair Process
A. Video error
No video/ No audio
Established
date
Revised date
2/14
LCD TV
Error
symptom
2
2011.01.20
Normal
voltage?
Check various
voltages of Power
Board ( 3.5V,12V,
24V…)
voltages of Power
Board ( 3.5V,12V,
24V…)
No Video/
No audio
No audio
Check and
replace
MAIN B/D
replace
MAIN B/D
Y
Replace Power
Board and repair
parts
Board and repair
parts
N
End
☞A4
3D FPR Model & Non 3D
A. Picture Problem
Picture broken/ Freezing
Y
N
☞ A6
N
Check RF Signal level
Normal
Signal?
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Check
S/W Version
S/W Upgrade
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc`
SVC
Bulletin?
Replace
Main B/D
Check
Tuner soldering
Normal
Picture?
Y
N
Y
Close
Normal
Picture?
Y
Close
. By using Digital signal level meter
. By using Diagnostics menu on OSD
. By using Diagnostics menu on OSD
( Menu→Red key→Signal test)
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
- Signal Quality (Normal: over 50%)
Normal
Picture?
Y
Contact with signal distributor
or broadcaster (Cable or Air)
N
N
Normal
Picture?
Y
Close
N
☞ A7
Standard Repair Process
Established
date
Revised date
3/14
LCD TV
Error
symptom
2011.01.20
3
Color
error?
Y
N
※ Check
and
replace
Link Cable
(LVDS) and
contact
condition
and
replace
Link Cable
(LVDS) and
contact
condition
Y
N
Replace Main B/D
Color
error?
Check error
color input
mode
color input
mode
Check color by input
-External Input
-COMPONENT
-RGB
-HDMI/DVI
-External Input
-COMPONENT
-RGB
-HDMI/DVI
Y
External device
/Cable
normal
External Input/
Component
error
Check
external
device and
cable
external
device and
cable
Y
External device
/Cable
normal
RGB/
HDMI/DVI
error
Check external
device and
cable
device and
cable
Replace Main B/D
Replace Main B/D
N
N
A. Video
error
Color error
☞A8
N
Y
End
Request repair
for external
device/cable
Color
error?
Check Test pattern
☞A12
☞ A10/ A11
Standard Repair Process
Established
date
Revised date
4/14
LCD TV
Error
symptom
4
2011.01.20
Replace
Replace Main B/D
FRC B/D ( LW9500 )
or TCON B/D ( 60LW9500 )
or module
Replace Main B/D
FRC B/D ( LW9500 )
or TCON B/D ( 60LW9500 )
or module
※ T-con B/D
A. Video error
Vertical / Horizontal bar, residual image,
light spot, external device color error
light spot, external device color error
Established
date
Revised date
5/14
LCD TV
Error
symptom
Standard Repair Process
5
2011.01.20
Screen
normal?
N
Y
Check external
device
connection
condition
device
connection
condition
Y
N
Check and
replace Link
Cable
replace Link
Cable
Normal?
Y
N
Screen
normal?
Replace Main
B/D
or FRC B/D
or T-con B/D
B/D
or FRC B/D
or T-con B/D
Replace
module
module
Check color condition by
input
-External Input
-Component
-RGB
-HDMI/DVI
input
-External Input
-Component
-RGB
-HDMI/DVI
End
Vertical/Horizontal bar, residual image, light spot
Request repair
for external
device
for external
device
☞A12
External device screen error-Color error
External
Input
error
Connect other external
device and cable
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
device and cable
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
N
Y
Replace
Main B/D
Main B/D
Screen
normal?
Check screen
condition by
input
-External Input
-Component
-RGB
-HDMI/DVI
condition by
input
-External Input
-Component
-RGB
-HDMI/DVI
Request repair for
external device
external device
Component
error
RGB
error
HDMI/
DVI
Connect other external
device and cable
(Check normal operation
of External Input,
Component, RGB and
HDMI/DVI by connecting
Jig, pattern
Generator ,Set-top Box
etc.
device and cable
(Check normal operation
of External Input,
Component, RGB and
HDMI/DVI by connecting
Jig, pattern
Generator ,Set-top Box
etc.
Replace
Main B/D
Main B/D
Screen
normal?
N
Y
Check S/W Version
Y
N
Check
version
S/W Upgrade
Y
N
Normal
screen?
End
Y
N
Replace module
Screen
normal?
End
☞A8
☞ A10/ A11
Check Test pattern
※ T-con B/D
Click on the first or last page to see other 47LZ9600-JA (CHASSIS:LE13F) service manuals if exist.