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A. Video error
Picture broken/ Freezing
Standard Repair Process
Established
date
Revised date
3/13
Error
symptom
ත
A3
. By using Digital signal level meter
. By using Diagnostics menu on OSD
Check RF Signal level
y
g
g
( Advanced→ Channels→ Channel Tuning→ Manual Tuning → Check the Signal )
- 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`
A4
N
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Check
S/W Version
SVC
Bulletin?
Check
Tuner soldering
Y
Y
Close
Normal
Picture?
Y
N
ත
A4
N
S/W Upgrade
Replace
Normal
Picture?
N
Contact with signal distributor
or broadcaster (Cable or Air)
Normal
Picture?
Y
N
Replace
Main B/D
Y
Close
Close
- 26 -
2019
Содержание 28LM4 0B-PU Series
Страница 11: ... 2 5 0 11 2019 ...
Страница 13: ... 13 6 66 0 8 2019 ...
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Страница 16: ... 16 2019 4 Remove the screwV that lock the main board after removing the mirror line and function key line ...
Страница 17: ... 7 2019 5 Remove the tape and unplug the LVDS ...
Страница 18: ... 18 2019 6 Remove the tape that holds the speaker line and remove the horn ...
Страница 19: ... 19 2019 7 Remove the wall bracket ...
Страница 20: ... 20 2019 8 Remove the tape thaW holds the IR plate line and remove the IR plate ...
Страница 21: ... 21 2019 9 Place the removed mirror flat on the guard mat ...
Страница 22: ...7528 6 227 1 8 22 2019 ...
Страница 56: ... SSHQGL FKDQJH 3RZHU RDUG 368 1R LJKW 1R SLFWXUH 6RXQG 2N 1R LJKW 1R SLFWXUH 6RXQG 2N u G 56 2019 ...
Страница 69: ......