[ICOM] UHF Power Module Repaired...Thanks!

[Fern Rivard]

Please take note that if one uses silver solder to repair this module, 
then the old problem will likely never come back. Regular solder has too 
low a melting point to do a proper job on this repair.   Cheers from 
Fern



----- Original Message ----- 
From: "Robin Midgett" <K4IDC at Comcast.net>
To: <icom at mailman.qth.net>
Sent: Sunday, October 08, 2006 2:53 PM
Subject: [ICOM] UHF Power Module Repaired...Thanks!


> Hi,
> A couple of weeks ago I posted to the list requesting a used SC-1054 
> or M57788 UHF power amplifier module. The symptom was very low output 
> in Tx power from the radio.
> A couple of kind folks responded, suggesting I pry the cover off the 
> one I have and look for broken traces on the substrate. I figured I 
> had nothing to loose and only ~$80.00 to save, so I did.
> Upon removing the lid of the module, I found that three of the five 
> leads which provide connections to the module from the rest of the 
> radio were pulled away from their solder pads. Using a sharp razor 
> blade to cut away the sealant goop around the solder pads, and a large 
> tip soldering iron, I was able to re-solder the leads to the pads on 
> the substrate. The radio now makes the 30 watts it is supposed to. 
> Thank you for the constructive advice!
>
> Thanks,
> Robin Midgett K4IDC
> 615-322-5836 office - rolls to pager
> 615-301-1642 home
> K4IDC at comcast.net
> robin.midgett at vanderbilt.edu
> ----
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