Filter
Top Products
SERVICE CALL CONDITIONS April 2007
4-34
FGATE error 1: Feedback remains LOW for Y write SC233 D
After the start of timing to create
the yellow image, the PFGATE
register of the GAVD (ASIC)
does not assert, even after 5
sec. when:
• Images are created on the
drum.
• MUSIC patterns are created
on the transfer belt.
The BICU received a LOW
feedback signal, but the signal
remained LOW (indicating the
lasers were still operating), even
after creation of the next image
should have started.
• GAVD (ASIC) on the BICU defective
• PCI I/F on the IPU defective
• ASIC on the IOB defective
• Check board connections, replace
FGATE error 1: Feedback remains HIGH for M write SC234 D
After the start of timing to create
the magenta image, the
PFGATE register of the GAVD
(ASIC) does not assert, even
after 5 sec. when:
• Images are created on the
drum.
• MUSIC patterns are created
on the transfer belt.
The BICU received no feedback
(LOW signal) from the LD unit to
indicate that the lasers started
firing at the prescribed time to
create the patterns.
• GAVD (ASIC) on the BICU defective
• PCI I/F on the IPU defective
• ASIC on the IOB defective
• Controller board disconnected, defective
• Harness between the BICU LDB unit
disconnected, loose, or defective.
• Check board connections, replace
FGATE error 1: Feedback remains LOW for M write SC235 D
After the start of timing to create
the magenta image, the
PFGATE register of the GAVD
(ASIC) does not assert, even
after 5 sec. when:
• Images are created on the
drum.
• MUSIC patterns are created
on the transfer belt.
The BICU received a LOW
feedback signal, but the signal
remained LOW (indicating the
lasers were still operating), even
after creation of the next image
should have started.
• GAVD (ASIC) on the BICU defective
• PCI I/F on the IPU defective
• ASIC on the IOB defective
• Check board connections, replace