LG 42LB5800 - Page 47

Established
dt
Error
2014 1 2
Standard Repair Process
A. Video error
Picture broken/ Freezing
☞
A6
. By using Digital signal level meter
d
a
t
e
Revised date
3/13
LCD TV
Error
symptom
2014
.
1
.
2
A.
Video
error
A6
Check RF Signal level
. By using Diagnostics menu on OSD
( Menu → Settings → 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`
N
N
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Check
S/W Version
SVC
Bulletin?
Y
Normal
Picture?
Y
☞ A7
S/W Upgrade
Check
Tuner soldering
Normal
Y
N
Contact with signal distributor
or broadcaster (Cable or Air)
N
Normal
Picture?
Y
N
Replace
Main B/D
Picture?
Y
Close
Y
Close
5/ 97
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