Read LG 50PT250-ZG / 50PT250A-ZG / 50PT250N-ZG (CHASSIS:PD13K) Service Manual online
Making
Revision
4/10
PDP TV
Symptom
A. Picture Problem
Picture broken/Freezing
Repair Process
Y
☞A21
4
N
Check RF Signal level
Normal
Signal?
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc
■ Menu→Setup →Booster
. By using Digital signal level meter
. By using Diagnostics menu on OSD
. By using Diagnostics menu on OSD
( Menu→Press red key on R/C →Signal TEST)
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Normal
Picture?
Y
N
Normal
Picture?
Y
Close
N
N
Check
S/W Version
Booster menu
On→Off: Check
Off→On: Check
Off→On: Check
S/W Upgrade
SVC
Bulletin?
Check
Tuner & replace
Main B/D
Normal
Picture?
Y
N
Y
Close
Normal
Picture?
Y
Close
N
☞A6-1, 2
Normal
Picture?
N
Contact with signal
distributor or
broadcaster
(Cable or Air)
Move
No Picture/ Sound Ok
Section
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