[ICOM] IC-756PROIII No Transmit

Alan Zack k7acz at cox.net
Mon Mar 23 19:24:38 EDT 2009


Thanks, tried the RF Power setting at various levels, also quickly 
rotated it while keyed to see if the problem could be that area. No Joy.
_______________________________________________________
Alan Zack
Amateur Radio Station K7ACZ


----- Original Message ----- 
From: "dgaylord" <dgaylord at cni.net>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Monday, March 23, 2009 3:59 PM
Subject: Re: [ICOM] IC-756PROIII No Transmit


> Alan,  I have been known to turn down the RF power before...
> Dan W7IDG
>
> -----Original Message-----
> From: icom-bounces at mailman.qth.net 
> [mailto:icom-bounces at mailman.qth.net] On
> Behalf Of Alan Zack
> Sent: Monday, March 23, 2009 3:37 PM
> To: ICOM Reflector
> Subject: [ICOM] IC-756PROIII No Transmit
>
> 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



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