30
TROUBLESHOOTING FLOW CHART
B.
NO
NO
Playback picture
is not good.
NO
NO
Check flow A.
YES
YES
YES
YES
Noise appears on the
screen on the whole.
Noise appears on the
screen at the bottom
Change Drum Ass'y
Is Enve. waveform
supplied to pin 4
of P T501?
Check connector,
and Head dust.
NO
NO
YES
Check pattern
Check video circuit.
Check the PG
Adjustment.
Is SW-pulse applied to
video IC?
Is sw pulse supplied
from pin 18 of IC501?
Check D.PG input
and connector.
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Summary of Contents for DV4K611DZ-T
Page 47: ...46 CIRCUIT DIAGRAM 1 POWER CIRCUIT DIAGRAM All manuals and user guides at all guides com...
Page 48: ...47 CIRCUIT DIAGRAM 2 SYSCON CIRCUIT DIAGRAM All manuals and user guides at all guides com...
Page 49: ...48 CIRCUIT DIAGRAM 3 A V CIRCUIT DIAGRAM All manuals and user guides at all guides com...
Page 50: ...49 CIRCUIT DIAGRAM 4 OSD CIRCUIT DIAGRAM All manuals and user guides at all guides com...
Page 52: ...51 CIRCUIT DIAGRAM 6 TERMINAL CIRCUIT DIAGRAM All manuals and user guides at all guides com...
Page 54: ...2 PCB LOGIC All manuals and user guides at all guides com...
Page 57: ...56 DISASSEMBLY 2 SET TOTAL ASS Y All manuals and user guides at all guides com...
Page 58: ...57 DISASSEMBLY 3 PACKING ASS Y All manuals and user guides at all guides com...
Page 71: ...All manuals and user guides at all guides com a l l g u i d e s c o m...
