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DOWNLOAD LG 32LV3700-ZC / 32LV370S / 32LV375G-ZC / 32LV375S-ZC / 32LV375W-ZC (CHASSIS:LD12B) Service Manual ↓ Size: 12.16 MB | Pages: 74 in PDF or view online for FREE

Model
32LV3700-ZC 32LV370S 32LV375G-ZC 32LV375S-ZC 32LV375W-ZC (CHASSIS:LD12B)
Pages
74
Size
12.16 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lv3700-zc-32lv370s-32lv375g-zc-32lv375s-zc-32lv3.pdf
Date
PREV: LG 32LV3700-SA (CHASSIS:LJ12B) Service Manual

LG 32LV3700-ZC / 32LV370S / 32LV375G-ZC / 32LV375S-ZC / 32LV375W-ZC (CHASSIS:LD12B) Service Manual ▷ View online

Normal
voltage?
Check various 
voltages of Power 
Board 
( 5V,12V,24V…)
No Video/
No audio
Check and 
replace 
MAIN B/D
Y
Replace Power 
Board and repair 
parts
N
End
Established
date 
Electronics 6-3
Standard Repair Process
Revised date 
2008. 2 . 1
LCD  TV
A. Video error
No video/No audio 
2/13
☞148
Error 
symptom
Normal 
signal?
Y
N
Case 1)
Case 2)
Check S/W 
Version
Y
N
Version
exists?
Check and fix 
cable 
signal/connector
※ Check antenna 
signal
- Check Signal 
Strength and Quality
S/W Upgrade
※ Digital signal 
measuring device or 
digital ANT
※ Check expert mode 
with user remote 
controller
* Check point
1) Digital signal disconnected?
2) Analog video signal weak?
Y
N
Normal 
screen?
End
Replace Main 
B/D
Connect external device RF signal
N
Y
Normal 
screen?
Check and fix 
ANT signal
(Request to 
cable/antenna 
provider)
End
☞150
Established
date 
Electronics 6-3
Standard Repair Process
Revised date 
2008. 2 . 1
LCD  TV
A. Video error
Video error, video lag/stop 
3/13
Error 
symptom
Color
error?
Y
N
※ Check 
and replace 
Link Cable
(LVDS) and 
contact 
condition
Y
N
Replace Main B/D
Color
error?
Check error 
color input 
mode
Check color by input
-External Input
-COMPONENT
-
RGB
-
HDMI/DVI
Y
External device
/Cable
normal
External Input/
Component
error
Check 
external 
device and
cable
Main B/D
Y
External device
/Cable
normal
RGB/
HDMI/DVI
error
Check external 
device and 
cable
Replace Main B/D
Replace Main B/D
Use Picture Test
N
N
Established 
date 
Electronics 6-3
Standard Repair Process
Revised date 
2008. 2 . 1
LCD  TV
A. Video error
Color error 
4/13
☞154
☞152
N
Y
Color
error?
End
Replace module
Error 
symptom
Request repair 
for external 
device/cable
Color
error?
N
Y
Replace Main B/D
Color
error?
Y
End
Screen
normal?
N
Y
Check external 
device 
connection 
condition
Y
N
Check and 
replace Link 
Cable
Normal?
Y
N
Screen
normal?
Replace Main B/D
Replace 
module
Check color condition by input
-External Input
-Component
-
RGB
-
HDMI/DVI
Check Test mode
RGB  screen
End
Vertical/Horizontal bar, residual image, light spot
Request 
repair for 
external 
device
Established 
date 
Electronics 6-3
Standard Repair Process
Revised date 
2008. 2 . 1
LCD  TV
A. Video error
Vertical/Horizontal bar, residual image, 
light spot, external device color error 
5/13
☞154
Error 
symptom
Use Picture Test
Color
error?
N
N
Replace Main B/D
Color
error?
Y
End
Y
Replace 
module
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