I was away from my station over the holiday, and the fuse was blown on my optima when I turned it on. I replaced the fuse and it let smoke out. What in the world might have caused this?
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Blown up, split in 2 finals?
- Thread starter 338_MtRushmore
- Start date
Possible lighting strike? Power surge in your home? I guess it could be a number of reasons.. Hope you are able to get it fixed...
Now that I think about it, it did receive for a second or 2 after I turned on the power supply. When I replaced the fuse, the negitive was disconected, but started smoking as soon as I started screwing the fuse holder together. I'm guessing lightning?
Oh well, at least it wasn't a good radio. I guess I will need to get everything grounded before I get another radio.
Oh well, at least it wasn't a good radio. I guess I will need to get everything grounded before I get another radio.
RatsoW8
Supporting Member, W9WDX ARC Member - WD8T
There isn't anything that can't be fixed, unless the entire unit has been converted in to carbon. A schematic and a parts list will help a lot.
I repaired a radio that had a crack running through the center of the circuit board. From one end all the way to the other. The radio as given to me as a challenge which I passed. A lot of work for a cobra 19.
Ouch.... Very possible like I said, but was not 100% sure... When you get a new radio just make sure you double and triple check everything and make sure you got good grounds.. You do not want another radio making its way to the dumpster... Anyway, sorry to hear about your radio, good luck...
I'll give you $5.00 dollars and pay shipping for it. I'm serious! I would use it for a video on soldering and repair of surface mount circuit boards.
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I will have to pass on that offer Tallman.
Good news is after replacing the finals sideband works fine. AM just swings straight to 40 watts with no audio.
Good news is after replacing the finals sideband works fine. AM just swings straight to 40 watts with no audio.
And a big thanks to Stryker for accidentally sending me some mosfets and grease a few years back.
OK, now find the AM Regulator and replace it. Sounds like that symptom - anyway . . .
If I had a clue what or where it was, I'd give it a try. Without a schematic I am lost.
Ok I guess I'm not too lost, smt just seems scary. I will order up some parts and see what happens.
I am not familiar with the layout of that chassis. But if it is anything like the 257 Magnum; then the AM Regulator should be mounted on the right side of the frame rail.
Got a picture?
Got a picture?
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