LG 65UB930T Service Manual

A. Video error
Picture broken/ Freezing
Standard Repair Process
Established
date
Revised date
3/16
LCD TV
Error
symptom
2013.01.31
Picture
broken/
Freezing
A3
By using Digital signal level meter
Revised
date
3/16
☞
A3
Check RF Signal level
.
By
using
Digital
signal
level
meter
. By using Diagnostics menu on OSD
( Setting→ Quick Setting → Programmes → Programme Tuning → Manual Tuning → Check the Signal )
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Y
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
Check
DVD
Player
,Set
Top
Box,
Different
maker
TV
etc
SVC
Check
Tldi
Y
Close
Normal
Y
☞ A4
1. Reconnection
2. Install Booster
S/W Version
S/W Upgrade
Bulletin?
T
uner so
ld
er
i
ng
Y
Close
Picture?
Contact with signal distributor
N
Normal
N
N
Replace
Main B/D
Normal
Picture?
N
Contact
with
signal
distributor
or broadcaster (Cable or Air)
Normal
Picture?
Y
Y
Close
Close
3
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LG 65UB930T Specifications

General

Brand	LG
Model	65UB930T
Category	LED TV
Language	English