[ICOM] IC-756PROIII No Transmit

[Kenneth Nilsson]

Hello Alan!
Interesting to hear that there are other out there with the same problem I
have had several times.
I think I have sent my rig to my dealer 7 times.
The problem started with my PRO II, so after four turns to the dealer they
gave me a new PRO III without cost. I think the reason was that there were
no PRO II:s left at the time.
I am not a technical guy and therefore it is easy to blame myself doing
something wrong. But I have had a lot of exoerienced hams, checking my shack
for some problems but no one could find any wrong with grounding or other
things.
Now I always disconnect my antenna from the rig when not in the schack.
The explanation I have got from my dealer is that high voltage has come in
to the rig and destroyed some components. This can eventually happens even
if the thunder and lightning is far away.
However I also have a ICOM 765 and I have never had this sort of problem
with that rig.
I think there are qutie a lot of PRO III owners who have had this problem,
as I have read mail like yours several times. Perhaps you can put this
question to Adam Farson, who seems to have a lot of knowledge in ICOM
equipment.
Good luck es 73 de
Ken / SM7CQY


Den 09-03-23 23.36, skrev "Alan Zack" <k7acz at cox.net>:

> I turned on my IC-756PROIII this morning and found no transmit on any band. It
> has been working fine. When attempting to transmit on RTTY or CW there is no
> carrier, no power out shown on the Transceivers PO meter or an external meter.
> The red TX LED light comes on and the fan speeds up but no power out. On SSB
> there is no power out on voice peaks, no ALC readings but the COMP meter does
> show a small deflection on SSB on voice peaks. Receive is normal.
> 
> I did the CPU reset with no help.
> 
> I disconnected the 756PROIII from the power supply and antenna and connected
> my back up IC-746 to the same antenna and power supply connections. The IC-746
> works FB telling me the power supply or antenna are not the problem.
> 
> There is no computer interfaces, etc, involved. Just the basic power supply,
> antenna, and speaker connections.
> 
> Does the 756PROIII suffer from the loss of power out problems that the
> IC-746PRO did?
> 
> Any suggestions before I box it up and send it to Icom? It was ordered on Nov
> 26, 2008 and shipped on Dec 2, 2008 from HRO Anaheim so is still under
> warranty.
> _______________________________________________________
> Alan Zack
> Amateur Radio Station K7ACZ
> Las Vegas, Nevada, USA
> Delta Rocket Quality Engineer, The Boeing Company, Retired
> Aviation Chief Warrant Officer,  U.S. Coast Guard, Retired
> ----
> 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