Read Panasonic UF-490 (serv.man2) Service Manual online
109
494
RCV
C
Interval between two EOLs was
more than 10 sec. when receiver
received message data.
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.
Line quality is poor. (EOL is damaged
due to line noise)
SC PCB is defective.
495
XMT
RCV
RCV
C
During reception, CD turned OFF
or continued ON for long time.
During communication, lost loop -
current.
or continued ON for long time.
During communication, lost loop -
current.
Line is disconnected.
Transmitter is defective.
SC PCB is defective.
Transmitter is defective.
SC PCB is defective.
496
XMT
C
CS of modem is not able to turn
ON.
ON.
SC PCB is defective.
501
XMT/
RCV(V.34)
B
Remote unit does not have
compatible Modem.
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.
During communication, lost loop -
current.
Line is disconnected.
Transmitter is defective.
SC PCB is defective.
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.
Line is disconnected.
504
RCV/V.34
(Polling)
B
Polling is rejected from the remote
station.
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.
CTC or DCN received.
Incompatible interface.
541
XMT ECM
D
No response after transmitting 3rd
EOR or received DCN.
EOR or received DCN.
Line is faulty.
SC PCB abnormal.
SC PCB abnormal.
542
XMT ECM
D
No response to the 3rd RR
transmitted or received DCN.
transmitted or received DCN.
Remote unit is abnormal.
543
XMT ECM
D
T5 timer (60 sec.) elapsed without
MCF.
MCF.
Remote unit is abnormal.
544
XMT ECM
D
Stopped Transmission after EOR
Transmission.
Transmission.
Line is faulty.
SC PCB abnormal.
SC PCB abnormal.
550
RCV ECM
C
Timer between frames in phase C
has elapsed.
has elapsed.
Defective remote station.
554
RCV ECM
D
Transmitted ERR after receiving
EOR.
EOR.
Faulty line.
555
RCV ECM
D
Transmitted PIN after receiving
EOR.
EOR.
Faulty line and Operator Call requested
by RX side.
by RX side.
570
RCV
B
Password or machine code did not
match during remote diagnostic
communication.
match during remote diagnostic
communication.
571
XMT
B
Remote unit did not have the
remote diagnostic function.
remote diagnostic function.
580
XMT
B
Sub-address transmission to a unit
that has their DIS bit 49 (NSF bit
155) OFF.
that has their DIS bit 49 (NSF bit
155) OFF.
Sub-address transmission to a unit that
has no Sub-address function.
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.
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.
has no Sub-address function.
Fax Information Codes
Code
Mode
Phase
Description of Problem
Cause
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