[ICOM] ICOM 703 No TX After Factory Driver Mod

[Rick Robinson]

Here is my post in case you deleted it. Good luck with it Bert. 73, Rick.

Rick Robinson wrote:
> I had concerns about the no power out problem and it was the year 
> after the 703 was out that I asked some friends at the Icom booths at 
> Dayton to tell what was up with it. I brought my 703+ in to them and 
> they showed me about the driver bias adjust. There was also a board 
> change on the early non plus 703's that they told me about. Anyway 
> when I got back from Dayton I was the one to post the driver adjust 
> mod. Depending on when you sent it in for the update you may have 
> received the early fix, which was the bias adjust after 15 seconds of 
> keydown. Much later on came the reduction in voltage as there were 
> still some problems. It is possible yours was sent in before the 
> voltage mod. If I were you I would look up the voltage mod and study 
> the pics and then have the rig in front of the screen or a photo of 
> the cut traces on the board and see if this had actually had been 
> done. This may be the cause of your failure. If the voltage mod has 
> been done then chalk it up to something unknown and fix it and try 
> again. Most likely you won't have another failure. I hope this helps 
> and good luck, Rick.
>
> ----
> 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/
>
>