[TenTec] Pegasus 550

[phil g]

Here is a link to the relay.  Also avail. from Ten Tec.
http://www.newark.com/jsp/search/productdetail.jsp?SKU=45M7086

Fairly straight forward to replace.  Unsolder the old, solder in the new.

n4zsa
----- Original Message ----- 
From: <davkozy at comcast.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Monday, March 29, 2010 12:16 PM
Subject: Re: [TenTec] Pegasus 550


> Yes, I have tried without the tuner. I thought they may be a problem. Have 
> you ever tried to replace them?
>
>
>
> ----- Original Message ----- 
> From: "phil g" <trapperpg at earthlink.net>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Monday, March 29, 2010 8:23:09 AM GMT -06:00 US/Canada Central
> Subject: Re: [TenTec] Pegasus 550
>
> Dave,
> The relays are a know source of headaches in the Pegasus. Most all relay
> failures I have heard of were the result of an open coil winding. Said
> relay failure will result in no output on one or more bands, depending on
> number of defective relays...there are 2 per band.
> I would hazzard a guess it is more possible that a relay(s) has stuck,
> preventing proper switching of the bandpass filters.
> Have you tried without the tuner?
> Check pin diodes that switch receive bandpass filters.
>
> I think schematics are floating around on this list..
> n4zsa
> ----- Original Message ----- 
> From: <davkozy at comcast.net>
> To: "Ten-Tec, Discussion" <tentec at contesting.com>
> Sent: Monday, March 29, 2010 12:12 AM
> Subject: [TenTec] Pegasus 550
>
>
>> Hi all,
>>
>> I have a Pegasus 550 with the Auto Tuner option that I bought at
>> Dayton 2000. This radio has performed flawlessly all this time until this
>> weekend. Whenever I try to transmit or tune on 80 meters, the power 
>> supply
>> trips on overload. I know it's not an antenna problem as I use the same
>> antenna on other rigs. This tripping on 80 meters happens even with no
>> output power applied. I tried a heaver power supply and it just loads the
>> supply down and dims the lights.
>>
>> I have uninstalled & reinstalled the software from the computer as
>> well as re-flash the firmware in the radio. I also looked inside and saw
>> no obvious flashing or burning on the board or components.
>>
>> I did however notice that the small Hasco relays (14 of them) on the
>> main board seem to have some sort of corrosion on their plastic cover. I
>> have not a clue where that came from. Some of them seemed to have a 
>> slight
>> oil film on them. Are these perhaps filled with some sort of dialetric
>> fluid to limit internal arcing and they are leaching it out?
>>
>> Anyway, if anyone has any comments or suggestions I would really
>> appreciate them. I would hate to ship it off to Ten-Tec just to discover
>> this is a simple problem that happens all the time with a simple fix.
>>
>> Thanks
>> Dave KB9EPL
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