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Standard Repair Process
Error
symptom
☞ A3
Check RF Signal level
Check whether other equipments have problem or not.
Y
Normal
Signal?
N
Check RF Cable
Connection
1. Reconnection
2. Install Booster
N
Normal
Picture?
Y
Close
A. Video error
Picture broken / Freezing
- By using Digital signal level meter
- By using Diagnostics menu on OSD
(All Settings → Programmes → Programme Tuning & Settings → Manual Tuning → Antenna DTV
Check the signal level)
- Signal Strength (Normal : over 50%)
- Signal Quality (Normal : over 50%)
(By connecting RF Cable at other equipment)
DVD Player ,Set-Top-Box, Different maker TV etc.
Normal
Picture?
N
Contact with signal distributor
or broadcaster (Cable or Air)
☞ A4
Y
Check
SVC
S/W Version
Bulletin?
S/W Upgrade
Normal
Picture?
Y
Close
3
Established
date
Revised date
N
N
Check Tuner
soldering
Y
N
Replace
Main B/D
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Only for training and service purposes
3/17
Y
Close
N
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