NEC PlasmaSync PX-42M2A, Руководство по обслуживанию

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4-7
TROUBLE SHOOTING
No display (no RGB/PC screen display)
Enter a VGA or SVGA
color bar signal input.
Is there on-screen display NO Refer to Fault Analysis for
of “PC”? ANALOG PWB and thereafter.
YES
Is LED lit in green ? NO Is there horizontal sync at NO Failure in the signal
(Not in power management) Pin 13 of M1006, or vertical line.
sync at Pin 14?
YES YES
Is there horizontal sync at NO Failure in the VI/O
Pin 8 of ANALOG PWB “PC” sync system (Q1050
connector, or vertical sync at and peripheral area
Pin 10? of IC1006).
Is there horizontal sync at Pin Failure in the ANALOG
89 of IC6800, or vertical sync PWB sync system.
at Pin 19?
Failure in the peripheral area
of IC6800.
Is there a video signal at NO With the signal line disconnected, NO Failure in the signal
TP1007, TP1008, and is there a video signal at the line.
TP1009? signal line terminal?
YES YES
Failure in the signal line of
IC6110 or before it.
Refer to Fault Analysis for
ANALOG PWB and
thereafter.
YES
YES
NO