I would do this, but I do not have any source for injecting the signals
required. Right now I only have an old 40 MHz oscilliscope and a DVM...
From: Kevin Purcell <email@example.com>
Date: Tuesday, Aug 7, 2007 1:39 pm
Subject: Re: [TenTec] triton 540 reversed polarity
To: firstname.lastname@example.org, Discussion of Ten-Tec Equipment
CC: Kevin Purcell <email@example.com>, firstname.lastname@example.org
Why not try to troubleshoot it rather than randomly changing parts?
>Do you have a signal source for audio and a tunable one for RF?
>Start injecting an AF signal at the speaker audio amp and work
>backwards down the change towards the antenna. Switch to an IF
>injected signal at the product detector (and any other mixers). Then
>RF when you get past the first mixer (try each band).
>You find which sections don't work when he signal disappears then you
>can figure what is broken in each section.
>On Aug 7, 2007, at 9:36 AM, Louis A. Ciotti Jr. wrote:
>> Thanks for the information. I have located the manual which has a
> schematic. I guess I am going to have to dig in and start changing
>> I do not think I destroyed every IC as the radio powers up and the
> remote digital readout I have for it works and shows the correct
> frequency so some portion of it is working. That and the fact that
> I can still hear static if I turn the volume up to max means that
> some portion of the receiver is working.
>> Thanks again, and keep the ideas comming.
> -----Original Message-----
> From: "Dr. Gerald N. Johnson" <email@example.com>
> Date: Tuesday, Aug 7, 2007 12:21 pm
> Subject: Re: [TenTec] triton 540 reversed polarity
> To: firstname.lastname@example.org
>> On Mon, 2007-08-06 at 21:24 -0500, Stuart Rohre wrote:
>> Reversal of DC polarity may have failed some electrolytic
>> capacitors. Also,
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