UF-490 (serv.man2) - Panasonic Fax Service Manual (repair manual). Page 107

107

301

XMT 
RCV

System fault.

Software problem occurred. (SC PCB)

331

XMT

C

8-minutes timer error. 
(Germany only)

400

XMT

B

T1 timer (35±5 sec.) elapsed 
without detecting 300 bps signal.

Wrong number is dialed and the START 
button is pushed.
Telephone line is disconnected while 
dialing.
SC PCB (Modem) is defective.
Receiver is defective. (It may only be 
transmitting CED)

401

XMT

B

DCN was returned from receiver 
while transmitter is waiting for CFR 
or FTT.

Your machine's ID Number is not 
programmed.
Possible incompatibility or incorrect 
Password.

402

XMT

B

DCN was returned from receiver 
while transmitter is waiting for 
NSF/DIS.

Receiver working in non-CCITT mode 
only. (Possible incompatibility)

403

RCV

(Polling)

B

Transmitter had no polling function. "POLLED=ON" (polling XMT ready) is 

not set at the transmitter. 
Document to be transmitted is not 
placed at the transmitter.

404

XMT

B

Transmitter sent NSS (or DCS) 
followed by TCF three times, but 
the receiver did not respond. (CFR 
or FTT is usually returned)

Receiver is defective. (Modem, etc.) 
SC PCB is defective.
Receiver disconnects line during first 
NSS (or DCS) is transmitted.

405

XMT

B

Transmitter received FTT after it 
transmitted TCF at 2400bps.
Received RTN after 
communicating at 2400 bps.

Line quality is poor. (TCF is damaged 
due to line noise)
Receiver is defective. (Modem, etc.) 
SC PCB is defective.

407

XMT

D

Transmitter received no response 
after it transmitted post message, 
such as EOP, MPS, EOM, etc...or 
received DCN.

Receiver is defective. (No paper, paper 
jamming, etc.) 
Receiver ceased receiving because of 
excessive error. (Line quality is poor) 
SC PCB (Modem) is defective.

408

XMT

D

Transmitter received RTN after it 
transmitted EOP, MPS, or EOM.

Receiver receives data with error. (Line 
quality is poor) 
Receiver is defective. (Modem, etc.)
SC PCB is defective.

409

XMT

D

Transmitter receives PIN after it 
transmitted a post message, such 
as EOP, MPS, EOM, etc.

Receiver receives data with error due to 
poor line quality, and receiving operator 
requests voice contact.
Receiver is defective. (Modem, etc.)
SC PCB is defective.

410

RCV

D

Received DCN while waiting for 
post command. (EOP, MPS, EOM, 
etc.)

Interface or line is faulty.
Transmitter is defective.

411

RCV

(Polling)

B

Received DCN after transmitting 
NSC.

Transmitter is not ready for polling  
communication. 
Password does not match between 
transmitter and receiver.