Panasonic UF-590 / UF-790 Service Manual ▷ View online
89
4.3.1.
Information Codes: 400, 420
START
400
END
END
Enable the monitor
speaker. (Refer to Sect.
5.2 Parameter No. 008)
speaker. (Refer to Sect.
5.2 Parameter No. 008)
Does the remote unit
repeat the 300 bps
signal every 3 sec.?
repeat the 300 bps
signal every 3 sec.?
1. Refer to Sect. 4.6.
2. Check the remote unit.
(Remote unit is defective)
2. Check the remote unit.
(Remote unit is defective)
(Remote unit is defective)
2. Check the telephone
2. Check the telephone
1. Check the remote unit.
number to the remote unit.
Perform a transmission
test to the remote unit in
question.
test to the remote unit in
question.
Does the remote unit
send the CED and 300
bps Fax signal ?
send the CED and 300
bps Fax signal ?
Is transmission to the
reference unit successful?
reference unit successful?
1. Replace the MJR PCB.
2. Replace the SC PCB.
2. Replace the SC PCB.
Does the trouble still occur?
Yes
Yes
Yes
No
No
No
Yes
No
START
420
END
2. Check the remote unit.
1. Misdialed call.
(Remote unit is defective)
3. Refer to Sect. 4.6.
Check the line
connection from the wall
jack to the "Line" on the
MJR PCB.
connection from the wall
jack to the "Line" on the
MJR PCB.
Is reception from a
reference unit
reference unit
successful?
Replace the SC PCB.
Yes
No
90
4.3.2.
Information Codes: 401, 402, 422
Replace the SC PCB.
Check the remote unit in question.
(Remote unit is defective)
(Remote unit is defective)
Is Communication with the
reference unit successful?
reference unit successful?
No
Yes
402, 422
END
Is the ID Number programmed
into your machine?
into your machine?
Is the Receiving unit set up for
Selective Receive?
Selective Receive?
Program the ID Number.
Yes
No
START
401
Is the Receiving unit set up for
Password Reception?
Password Reception?
Are you sending a Confidential
Mail?
Mail?
Check the Selective Receive
settings at the receiving unit.
settings at the receiving unit.
Yes
No
No
No
Program the Receive Password
to match the receiving unit.
(Fax Parameter No. 44)
to match the receiving unit.
(Fax Parameter No. 44)
Yes
Check with the receiving end,
the mailboxes may be full.
the mailboxes may be full.
Yes
Are you sending a document
by Relayed Transmission?
by Relayed Transmission?
No
Check the Relayed Transmission
settings at the Relay Station.
settings at the Relay Station.
Yes
END
START
91
4.3.3.
Information Codes: 404, 405, 407
START
END
Is communication with reference
unit successful?
unit successful?
Change Function Parameter #010:
Reduce Tx Attenuation Level
Reduce Tx Attenuation Level
Yes
No
Yes
No
Change Function Parameter #017:
Reduce Tx Modem Speed
Reduce Tx Modem Speed
Does the problem still occur?
1. Replace the MJR PCB.
2. Replace the SC PCB.
2. Replace the SC PCB.
Does the problem still occur?
Change Function Parameter #025:
Communication Startup to 2nd
Communication Startup to 2nd
Does the problem still occur?
Change Funciotn Parameter #014:
Increase G3 Tx Equalization
Increase G3 Tx Equalization
Does the problem still occur?
END
Does the problem still occur?
Check the telephone line condition.
Does the problem still occur?
(Recording paper may have run
Check the remote unit.
out or paper may have jammed.)
Refer to Sect. 4.6.
Yes
No
Yes
No
Yes
Yes
No
No
Yes
No
92
4.3.4.
Information Code: 416
START
END
Is communication with the
reference unit successful?
reference unit successful?
Change Function Parameter
#011: Reduce Rx Sensitivity
Level
#011: Reduce Rx Sensitivity
Level
Yes
No
Yes
No
Change Function Parameter
#023: Increase Training
Check Period
#023: Increase Training
Check Period
Does the problem still occur?
1. Replace the MJR PCB.
2. Replace the SC PCB.
2. Replace the SC PCB.
Refer to Sect. 4.6.
Does the problem still occur?
Change Function Parameter
#013: Increase G3 Rx
Equalization
#013: Increase G3 Rx
Equalization
Does the problem still occur?
END
Does the problem still occur?
Yes
No
No
Yes
No
Yes
Check the telephone line
condition.
condition.
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