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LG LS5750 Series Service Manual

LG LS5750 Series
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51 / 153
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
Booster menu
OnOff: Check
OffOn: Check
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
MenuSetup Booster
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Menu Set up Support Signal Test )
- Signal strength (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
3/13
LCD TV
Error
symptom
2010. 12 .14
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

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LG LS5750 Series Specifications

General IconGeneral
BrandLG
ModelLS5750 Series
CategoryLCD TV
LanguageEnglish

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