Read LG 42LM580S / 42LM580T / 42LM585S (CHASSIS:LD21B) Service Manual online
A. Video error
Tuning fail, Picture broken/ Freezing
Y
N
☞ A5
Check RF Signal level
Normal
Signal?
Check
S/W Version
S/W Upgrade
SVC
Bulletin?
Normal
Picture?
Y
N
Y
Close
Check RF signal cable (DVB satellite signal or not)
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
(By connecting RF Cable at other equipment)
→ Set-Top-Box, Different maker TV etc
Y
Change satellite setting
(match with installed ANT)
N
Normal
Picture?
Y
Close
N
☞ A6
Standard Repair Process
Established
date
Revised date
4/14
LCD TV
Error
symptom
2012. 01 .14
Check satellite setting.
-
Check LNB frequency.
-
Check satellite
-
Check Satellite connection
(DiSEqC, motor, etc…)
Normal
setting?
Contact with
signal distributor
or broadcaster
(Cable or Air)
Close
N
Check
Tuner soldering
Replace
Main B/D
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