LG 55LB6500-um - Page 91

A. Picture Problem
Picture broken/ Freezing
Standard Repair Process
Established
date
Revised date
3/13
LCD TV
Error
symptom
2013. 11 .30
☞ A6
. By using Digital signal level meter
. B
y
usin
g
Dia
g
nostics menu on OSD
Check RF Signal level
ygg
( Menu→ Set up→ Support → Signal Test )
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Y
N
Normal
Signal?
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc`
■ Menu→Setu
p
→Booste
r
A7
N
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Check
S/W Version
Booster menu
On→Off: Check
Off→On: Check
SVC
Bulletin?
Y
Normal
Picture?
Y
Close
p
Normal
Picture?
Y
N
N
☞
A7
S/W Upgrade
Replace
Check
Tuner soldering
Normal
Picture?
N
Contact with signal distributor
or broadcaster (Cable or Air)
Normal
Picture?
Y
N
Replace
Main B/D
Y
Close
Close
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