1274.1
Subject: MFJ-1274 crashing solution

         A few weeks ago I placed a bulletin on the boards regarding a
         problem with the MFJ-1274 crashing from time to time. I received
         lots of replies and suggestions. I tried them all, and all of them
         failed to correct the problem. The was one which touched upon
         power failure, so I decided to look into the power supply.

         At no time was there a power failure or drop in voltage, but I
         removed the small 12v, 500ma supply that comes with the MFJ, and
         replaced it with a battery. The TNC ran fine until the voltage
         dropped on the battry 14 hrs later. The result was the TNC reset
         itself, and just sat there not doing anything. At this point I
         replaced the power supply with my PK-232 supply rated at 1 amp,
         and the MFJ has been running 100% for the l;ast 4 days. It is
         possible that the TNC is drawing more current then it's suppose to
         but in any case the 1amp supply is not running hot at all. So keep

         this in mind if something similar happens to your 1274.

         The problem may not appear if your TNC is not on continiously as
         mine is. Thanks to all for all the suggestions.  Kd2ej Winston..
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