[Yaesu] Problem with FT-736R going dead when PTT pushed

[David G. Maley]

Rick;
I had a similar problem with a yaesu FT-900 HF radio.  I found that RF was
getting into the CPU and resetting it. I ended up rewiring the ground
connection to the negative post inside my power supply.  Not sure this
cure will cure yours too, but worth a check.  Does the radio have the
same problem when connected to a dummy load?  Good luck.
Dave WA0ZZG

On Wed, 5 Dec 2001, Rick Stoneking wrote:

> All,
>
> I have recently acquired a FT-736 and it has a peculiar
> problem.  Occasionally when I push the PTT on the microphone (Heil Mic - do
> not get the original mic with the rig) the display on the 736 shuts off and
> the rig is essentially dead.  None of the controls seem to have any effect,
> no 'beeps' are generated when the buttons are pressed, etc.  I have to turn
> the radio off and then back on.  The radio has operated for relatively long
> periods of time without a problem, and in some cases it even seems
> frequency/memory dependant.  I have my local 2m repeater programmed in to
> memory 1 (145.29 -) and another repeater programmed in to memory 2 (146.625
> -) and at one point every time I  pressed the PTT when memory 1 was
> selected it happened, but if I went to memory 2 there was no problem, but
> as soon as I went back to memory 1 it did it again.  I have also had it
> happen using 440 FM in VFO mode (not using a memory channel).
>
> Has anyone ever heard of or experienced anything like this?  I have read on
> the Kenwood reflector of a problem experienced with some of those where the
> display would act up or disappear, and that was due to a poor contact in
> the display cabling - so I plan to check/clean all of the cable connectors.
>
> Please reply via e-mail to w2rds@arrl.net as I am not subscribed to this
> reflector.
>
> Thanks in advance to any who reply.
>
> Rick
> W2RDS
>
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