SAMSUNG PL-42 A450P1XZD - PL-50 A450P1XZD _ Service help.

Contn:

                                              [5]

Symptom:  A blank vertical cell or block appears on the screen as follows:

• Address Buffer defect: Replace the corresponding Upper | Lower Buffers. [E or F].
• COF defect:  Replace the Module.  (COF = Chip On Film)

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• Symptom:  A green screen appears when the TV is turned On. No image at all
• The Scale is not resetting.   Replace the Main Board.

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Symptom:  The OSD box appears, but there is no TEXT.

• Incorrect program version.  
• Check the version of each program.
• Replace the Main Board.

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Symptom:  A blank Upper | Lower block appears on the screen.

• Upper or Lower Y-Buffer defect.  
• Replace corresponding Upper | Lower Buffers. [E or F]

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Symptom: Either the Main or Sub-Picture does not appear.

• Replace the Main Board.

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Symptom:  A vertical Green line appears on the screen.

• The SMPS out voltage is incorrect.
• Adjust the SMPS voltage, according to the voltage printed on the module label.

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Symptom;  Dim screen. Blurred in red.

• X-Main board defect.  
• Replace X=main board.

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Symptom:  A blank screen appears.

• Replace the Y-Main Board.

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