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Re: SG502 Repair


 

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Does it look like this?



Glenn

On 9/26/2022 9:28 AM, Radu Bogdan Dicher wrote:
Hi all,
Does anyone have information on the correct power lamp for this unit? I can't find that info - all I can find in the manual is it being a "DS346."
Thank you,
Radu.?

On Sun, Sep 25, 2022 at 10:12 PM Radu Bogdan Dicher via <vondicher=[email protected]> wrote:
Well, I had no symptoms yet to?file, as until tonight I didn't get a chance to even plug it in. Visually, the only?clear issue I was seeing prior to tonight was the detached C160 (one leg was simply?mechanically loose). It was not trivial to resolder it, the short leg pretty much refused to take solder. But I ultimately won.

I got it, I will not change this cap. Equivalents today seem to require an arm and both legs (except some surplus?places I know...).

After taking care of C160, this outputs beautifully a very clean sine. The switches and pots are a bit in need of TLC, but other than that I'm very happy.?

Thank you all for your input!
Radu.?

On Sun, Sep 25, 2022 at 9:26 PM Froggie the Gremlin <jonpaul@...> wrote:
what is symptom?

never replace timing caps

suspect the usual range switches, possible PS shorted rants.

Clean controls and trimmers

Should be simple to debug

Jon






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Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
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