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Troubleshoot of Picture Problem
<LCD Panel Test Mode>
How to enter :
While pressing "volume(-)" button of the TV unit,
press "option" button of the remote control 3 times within 2 seconds.
How to exit :
Disconnect AC plug
(RTK2644)
Is the picture of all
Input Source NG ?
Yes
Check by LCD
Panel Test Mode
OK
IC 8001
:When abnormal picture is displayed, troubleshoot by the test pattern in LCD module.
If the picture is no problem, A board must be defective.
If the picture is also abnormal, LCD panel module must be defective.
A
LCD Panel Module
IC8001
T-CON
Test
Resize
Pattern
IP conv.
Check the input circuit / IC8001
No
LCD Panel
NG
#) The test pattern is created by the circuit
in LCD Panel Module(T-CON board).
LCD Panel
3
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