[ICOM] ICOM 746 PRO no transmit

Jim Vohland n9vo at hotmail.com
Tue May 27 22:20:20 EDT 2025


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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