[Premium-Rx] HF 2050 REPAIR

[james jones]

Mine did the same thing a week ago.  This was in the unheated shack at about 60 F.  I don’t have the top or bottom covers installed and have several inches of open air top and bottom with no fans used.  Two days later, radio came on with no power on BIT indicator and has worked well since.  I usually leave it on 24/7 and have no problems with the power supply.  

The power supply was not designed by Collins.  The Collins design was too expensive so a customer selected vendor supply was used.  That supply had to be modified to meet mil-std 461 as the customer required.  

I bought several pieces of engineering surplus from the old Collins surplus store here in Cedar Rapids and used them to build my working receiver from three demill’d units that came from Canada.  

Jim 
W0nkn
Sent from my iPhone

> On Apr 2, 2025, at 6:20 PM, Don Moman VE6JY via Premium-Rx <premium-rx at mailman.qth.net> wrote:
> 
> If dead enough that BITE doesn't function to narrow down the problem, it's
> likely the overworked power supply has failed.
> 
> 
>> On Wed, Apr 2, 2025 at 5:00 PM Greg Mengell via Premium-Rx <
>> premium-rx at mailman.qth.net> wrote:
>> 
>> I have a Collins 2050 in pristine condition that Quietly just quit . RX
>> went dead . No hint of trouble . No smoke or drama It went dead except for
>> the red warning  indicator . No fuses blown . Just dead in the water. I am
>> looking to get it serviced . Does anyone have any suggestions? Will pay for
>> repair.  73 Greg
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