[ICOM] IC756pro3 cable

[Jim Hargrave]

Pete,

I would change the fuses. They have a tendency to get hot after continued
operation. This sometimes melts the solder inside the fuse end caps, causing
a cold solder joint and high resistance. The automotive spade type fuses are
not as prone to do this as the barrel type.

   * 73's Jim W5IFP *


   >-----Original Message-----
   >From: icom-bounces at mailman.qth.net
   >[mailto:icom-bounces at mailman.qth.net]On Behalf Of peter Jackson
   >Sent: Friday, June 12, 2009 12:27 PM
   >To: icom
   >Subject: [ICOM] IC756pro3 cable
   >
   >
   >Hi on National Field Day we were using my PRO3 and after about
   >6 hours operating it died. We measured the volts at the rig end
   >of the power cable and it read 13.8 volts, so we presumed the
   >rig was at fault. We then fetched a IC746 and plugged it into
   >the same cable, but it didn't power up. We thought it must be
   >wired differently, so we connected it with it's own cable, now
   >ok. We now checked out the pro3 cable and found the positive
   >lead had a resistance of 180 ohms! one of our members said he
   >had had a similar problem, he unplugged the inline fuse,
   >reconnected it and the resistance disappeared and the rig
   >functioned ok for the rest of the contest. The fuse contacts
   >were perfectly clean just as the day it was made.
   >I see they have changed the inline fuses to a spade type on the IC7600.
   >Has anyone had this problem?
   >73 Pete G3KNU
   >----
   >Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
   >Icom Users Net: Sundays, 1700Z, 14.316 MHz
   >Icom FAQ: http://www.qsl.net/icom/
   >To support QSL/QTH.net: http://www.qsl.net/donate.html