[ICOM] Re 756Pro Tuner "mystery"

[David S. McCallum]

Tom just pulled my repair work order and no part numbers listed. Sorry
all it says under Part Description is,,,,Flat Part Cost.

On Thu, 10 Jun 2004 06:06:20 -0500 Tom Norris <r390a at bellsouth.net>
writes:
> Mac --
> 
> This makes me wonder if the previous owner didn't
> use his on 6. I bought it used, but it has worked
> fine for months, so who knows. Any chance Icom
> put the part numbers down for what they replaced,
> it would be ineresting to see if the same relays
> failed on your radio as did on mine. Not sure about
> the tuner controller board, but the SWR detector
> did null as it should during alignment.
> 
> Tom
> 
> 
> >Phil just be careful mine work ok for awhile,  THEN, it started 
> acting
> >up, would tune good for awhile and then it  kept running and 
> wouldn't
> >shut off. I called ICOM Seattle and told them what going on and 
> that it
> >stopped working. I sent it back to ICOM and just had a month left 
> on the
> >warranty. Here is what they found, REPLACED 3 DAMAGED RELAYS IN THE 
> TUNER
> >UNIT AND REPLACED OUT OF TOLERANCE CAPS ON TUNER CONTROL UNIT.  
> ICOM
> >stated in the repair ticket,,,,Usual Cause is TUNER operation in 
> the 6m
> >band, TUNER HAS NO AUTO FUNCTION IN THIS BAND. You must re- 
> initiate TUNE
> >when going to this band or changing freq.'s in this band.
> >So thats the story Phil, I leave the Auto Tuner off on 6M's and 
> when I go
> >to, say 50.125 I tune it manually. Good Luck, Mac
> ----
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> 
> 


David S. McCallum/USAF RET./Chief Mac/W7SAC/4