Sharp XV-Z12000 Anleitung Seite 38

XV-Z12000
The lamp is flashing blue
continuously.
Is a voltage of 2.5 V or more
present at pins (5) and (15) of
J8003 in the PCI/F unit?
Is a voltage of 3 V or more
present at pin (8) of J8003 in
the PCI/F unit?
Is a 1 Vp-p clock signal present
at pin (F2) of IC9101 in the
formatter unit?
Is a pulse present at each
address pin of IC9102 in the
formatter unit, immediately after
turning the power on?
Is a pulse being output to each
data pin of IC9102 in the
formatter unit, immediately after
turning the power on?
Is a voltage of 3 V or more
present on pin (49) of IC9401?
Is a motor drive pulse present
at pins (2), (3), and (4) of
P9402 in the formatter unit?
Is a pulse present at pin (4) of
P9401 in the formatter unit?
IC9101 is defective.
NO
YES
YES
NO
NO
YES
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
Check IC2005 (sub-microcomputer) and
peripheral parts.
Check IC2005 (sub-microcomputer) and
peripheral parts.
Check X9101.
IC9101 is defective.
IC9102 is defective.
IC9101 is defective.
IC9401 or Q9401 - Q9403 are defective.
The color wheel unit is defective.
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