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PICTURE
OUTPUT
S.F. PROCESSOR
DATA
DRIVER
To C Board
LVDS
RECEIVER
White Picture
D
A
MICRO
PROCESSOR
LVDS
TRANS
MITTER
Peaks Lite2p
PLASMA AI
VIDEO DATA
D
5
A
5
<Purpose>
1. This white pattern is generated by IC9300,IC9400 on D board.
2. When Power ON after removing A5 connector, white picture is provided to panel drive circuit.
Then, white picture automatically appears in normal situation.
D Board (SC or SS)
A Board (D Board)
Defective Board
No Picture
White Picture
Pattern
<Diagnosis>
No picture (Sound OK)
<Connector Position>
<Block Diagram and Explanation>
<Symptom>
<Model>
Full HD Models
(PY800,PY85,PY80,PY8 series)
(A5 Connector)
IC4200
IC8001
IC1100
23
In case of No picture problem (Sound OK), the defective board is mainly A or D board. But in this case,
Test Pattern isn’t useful for diagnosis. Because, this symptom can not display OSD and not enter to the
Service Mode. This method is possible to judge the defective board in this symptom.
Power ON after removing A5 Connector
IC9300
IC9400
LVDS
Diagnosis by Test Pattern (2)
6. Appendix
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