Auto Dial Failure (G3 Dual Line) - Oki OKIFAX 5750 Maintenance Manual

7.24 Auto Dial Failure (G3 Dual Line)

Remove the line cable
and connect to a
telephone handset.
Manual dial OK?
Test other fax machines
under the same
conditions. Do they
dial automatically?
No
DIALING on LCD?
Replace NCU Board.
Yes
Replace G3A
Return to section 7.23
41285901TH Rev.3
Start
No
Yes
No (Others cannot dial
automatically either)
Yes
Yes
Solved?
No
Board.
Can you hear dial tone when
lifting up your handset?
Yes
Check pulse dial/tone dial, dial rate, etc.
Check closed network.
(Note 1)
Each location causes
the problem?
Yes
Check the following items:
* Off-hook bypass OFF (TF No.19)
* 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?
No
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 5750/5950) 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 France, and UK version.
No
1. Check the line cable.
2. Check the exchange.
No (Only specific
locations)
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