Auto Dial Failure; Auto Dial Failure - Oki OKIFAX 5400 Maintenance Manual

7.6

Auto Dial Failure

Test other fax machines
Yes
Yes
Return to section 7.1
40838301TH Rev.1
Start
Manual dial OK?
Yes
under the same
conditions. Do they
dial automatically?
Yes
DIALING on LCD?
No
TELEPHONE BUSY
on LCD?
Yes
Hang up external
telephone set
Solved?
No
Replace NCU Board.
Solved?
No
Replace MCNT Board.
No
Can you hear dial tone when
lifting up your handset?
Check pulse dial/tone dial, dial rate, etc.
Check closed network.
(Note 1)
No (Others cannot dial
automatically either)
Yes
Each location causes
the problem?
No
Check the following items:
* Off-hook bypass OFF (TF No. 20)
* MF/DP (Dial parameter)
* DP rate (Dial parameter)
* DP make ratio (Dial parameter)
* Dial type (Dial parameter)
* Other dial parameters
Note: TF=Technical function
Yes
Solved?
Check the following items:
* Programmed one-touch keys
* Programmed two-digit auto dial
code
Note 1: If you do not have any other fax machine
(OKIFAX 5400) for testing, follow
this route. Then, if the problem is unsolved,
return to the main route.
Note 2: NCU Board is shown as UNC for US
version, WN5 for INT'L version, DN5
for FTZ version and FN5 for U.K. and France
7 - 7
No
Yes
1. Check the line cable.
2. Check the exchange.
No (Only specific
locations)
Yes
No