[ICOM] ICOM 746 PRO no transmit

evelyne de beer beethoven1 at sbcglobal.net
Wed May 28 11:30:09 EDT 2025


 No transmit in any mode ?
Lou ND6W
    On Tuesday, May 27, 2025 at 07:20:46 PM PDT, Jim Vohland <n9vo at hotmail.com> wrote:  
 
 You might want to read thru this link. Lot of good info and references some digikey part numbers that may help out. The 746 pro needs to go away!!!!

https://www.qsl.net/k5lxp/projects/746Pro/746ProNoTX.html
[https://www.qsl.net/k5lxp/projects/746Pro/746ProHelp.jpg]<https://www.qsl.net/k5lxp/projects/746Pro/746ProNoTX.html>
746Pro Sudden Death Summary Page<https://www.qsl.net/k5lxp/projects/746Pro/746ProNoTX.html>
What you'll need. You're going to need the following parts, Digi-Key part numbers are shown but they may be alternately sourced as necessary. 1ea IC151 RF Amp: Icom# 1110001890, DK# UPG1678GVCT-ND 2ea SOT PIN Diodes: 1SV252, Icom# 91213606, Substitute- DK# BAT54SWT1OSCT-ND
www.qsl.net

________________________________
From: icom-bounces at mailman.qth.net <icom-bounces at mailman.qth.net> on behalf of Pat Byrne <k9jau at sbcglobal.net>
Sent: Tuesday, May 27, 2025 8:44 PM
To: ARTHUR STEINKE JR. <arttravels at comcast.net>; ICOM Reflector <icom at mailman.qth.net>
Subject: Re: [ICOM] ICOM 746 PRO no transmit

Art,
You might check Johnke Electronics in Green Bay.  They work a lot on
TS850, and seem to be  kenwood shop.
So they might be worth taking a look.
BTW, we are close neighbors.  Moved to Carol Stream last summer.
Good luck with your search.  That is too good a rig to trash.
Pat, K9JAUAt 04:35 PM 5/27/2025, you wrote:
>Looking for a place or person that may be able to fix ICOM 746 pro.
>
>Unit transmit light goes on but no RF output.  What I find on the
>internet is it is  common problem.  Receives on all bands and modes.
>
>Tried SAR a ICOM repair center I guess in Michigan and they said no
>parts available, cannot fix, the IC's, etc no longer available.
>
>Can any one suggest a place for repair.  I would hate to dump the
>746PRO in the recycle bin.
>
>By the way I'm in the upper mid west, so something near Chicagoland
>would be great.
>
>Art WB9JKZ
>
>
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