A. Video error
Picture broken/ Freezing
Y
N
☞
A3
N
Check RF Signal level
Normal
Signal?
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Check
S/W Version
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc`
Replace
Main B/D
Check
Tuner soldering
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( All Settings
→ Channels → Channel Tuning → Manual Tuning → Check the Signal )
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Normal
Picture?
Y
Contact with signal distributor
or broadcaster (Cable or Air)
N
Normal
Picture?
Y
Close
N
☞
A4
Standard Repair Process
Established
date
Revised date
3/16
Error
symptom
3
N
OLED TV
Y
Close
N
S/W Upgrade
SVC
Bulletin?
Normal
Picture?
Y
N
Y
Close
Copyright © 2016 LG Electronics Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Summary of Contents for EA71G
Page 59: ......
