[ICOM] Oh NO!!!!

[Phil Krichbaum]

     I'm not sure if you mean 756 PRO, PRO II or PROIII. I know from 
first hand experience that the PRO II and PROIII suffer this problem 
too easily (IMHO) from ESD (electrostatic discharge). I had a new in 
the box PRO III and in the first hour after I took it out of the box 
during which I made two QRP QSOS and one at 100w, the TX power went to 
almost zero. At the time there was not one cloud in the sky, no wind 
etc. The failure was some FETs and diodes in the tuner and it was only 
after a few phone calls Icom agreed to cover the repair under 
warranty! My antennas have less than 2:1 SWR.
     Another time I had a close lightening strike and my PROII was not 
connected to an antenna and was off. It was off as was the Icom PS it 
was connected to but it was plugged into the AC mains. The PROII was 
totaled but I still use the same PS years later and it had no 
problems. Several other items were damaged/destroyed (TV, answering 
machine, computer, well pump relay) and it seems the damage came in 
the neutral side of the AC 117 line. I've since had the power company 
install a "meter treaters" on my electric meters and I've had no 
further problems even after a direct hit on the over head feed to the 
house last summer but your results may vary. I'm not then lone ranger 
with this type of Icom 756 problems and have no clue if it has been 
taken care of with the newer Icom rigs.
     Phil N0KE




4/19/2012 12:22 PM, bonddaleena at aol.com wrote:
> Hi. I've been a reader of this site for quite some time. Last summer, I took a 'close by' lightning hit. Flash and noise at same instant. I went into the house and found a bunch of stuff damaged. I suspect it hit a nearby AC line due to the following:
> It took out both of my rotor control boxes, Astron 50 Amp supply, TV, my 70 cm preamp, on a different tower, etc.
> I checked my favorite radio, my 756PRO, that I hand carried back from Tokyo when they first came out. It is connected to a PS-55 which is plugged into a large surge protector. Seemed OK.
> Yesterday, I went to call someone on 6M and noticed NO output. The receiver is fine.
>
> ALL antennas were disconnected as usual, when not in use and the coax pigtails were grounded. (I use hardline for most of my antennas}
>
> - no output on any band
> - ant OK
> - tried dummy load
> - used several different wattmeters
> - 'scope shows normal voice patterns
> - Po, SWR, etc non functional
> - tried master reset. no good.
>
> So, before I take a peak inside, any suggestions? I'd like to fix it myself, if possible.
>
> This is strange because my mint 745 next to it did the same thing a few years ago. I haven't bothered to even look at the 745 because the receiver is also fine. I use it with receiving converters.
>
> Thank you!!!
>
> ron
> N4UE
> ----
> 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
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.2126 / Virus Database: 2411/4947 - Release Date: 04/19/12
>
>