Panasonic Panafax UF-4000, Service Manual

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494 RCV C Interval between two EOLs was
more than 10 sec. when receiver
received message data. Transmitter is defective.
Line quality is poor. (EOL is damaged
due to line noise)
SC PCB is defective.
495 XMT
RCV C During reception, CD turned OFF
or continued ON for long time.
During communication, lost loop -
current. Line is disconnected.
Transmitter is defective.
SC PCB is defective.
496 XMT C CS of modem is not able to turn
ON. SC PCB is defective.
501 XMT/
RCV(V.34)
B Remote unit does not have
compatible Modem.
502 XMT/
RCV(V.34)
B, C, D During reception, CD turned OFF
or continued ON for long time.
During communication, lost loop -
current.
Line is disconnected.
Transmitter is defective.
SC PCB is defective.
503 XMT/
RCV(V.34)
B, C, D CS of modem is not able to turn
ON during training.
SC PCB is defective.
Line is disconnected.
504 RCV/V.34
(Polling)
B Polling is rejected from the remote
station. No polling original is set.
505 XMT/V.34
(Polling)
B Polling XMT is rejected. No polling original is set.
540 XMT ECM B No response after transmitting 3rd
CTC or DCN received. Incompatible interface.
541 XMT ECM D No response after transmitting 3rd
EOR or received DCN. Line is faulty.
SC PCB abnormal.
542 XMT ECM D No response to the 3rd RR
transmitted or received DCN. Remote unit is abnormal.
543 XMT ECM D T5 timer (60 sec.) elapsed without
MCF. Remote unit is abnormal.
544 XMT ECM D Stopped Transmission after EOR
Transmission. Line is faulty.
SC PCB abnormal.
550 RCV ECM C Timer between frames in phase C
has elapsed. Defective remote station.
554 RCV ECM D Transmitted ERR after receiving
EOR. Faulty line.
555 RCV ECM D Transmitted PIN after receiving
EOR. Faulty line and Operator Call requested
by RX side.
570 RCV B Password or machine code did not
match during remote diagnostic
communication.
571 XMT B Remote unit did not have the
remote diagnostic function.
580 XMT B Sub-address transmission to a unit
that has their DIS bit 49 (NSF bit
155) OFF. Sub-address transmission to a unit that
has no Sub-address function.
581 XMT B Sub-address Password
transmission to a unit that has their
DIS bit 50 (NSF bit 156) OFF. Sub-address transmission to a unit that
has no Sub-address function.
Fax Information Codes
Code Mode Phase Description of Problem Cause