Late to the game but:
the cap that blew was on the input (connected to pin 1, leftmost in your
image), so I would guess there was a voltage surge that came in and took
out the cap and possibly the regulator (but my guess is the regulator is
probably fine - they are pretty tough).
Change them both and give it a try, worth the few $$s it will cost.Â
Parts are quick and easy to get from either Digikey or Mouser.
(be careful to gt the polarity right with the cap or they go off like a
Mark Miller 707-490-5834
On 2/23/2019 7:12 AM, firstname.lastname@example.org wrote:
> Today's Topics:
> 1. Help identifying a chip (Battmain)
> Message: 1
> Date: Sat, 23 Feb 2019 05:07:29 +0000 (UTC)
> From: Battmain <email@example.com>
> To: firstname.lastname@example.org
> Subject: [Shop-talk] Help identifying a chip
> Message-ID: <email@example.com>
> Content-Type: text/plain; charset="utf-8"
> Finally got around to installing an amplified speaker I had sitting around
> for years.? It was supposed to be a simple install, but looks like I fried
> something in the haste.?
> I already picked up the capacitor in the picture,? but I think the regulator
> might be fried also based on the burn marks.Seems there are different models
> of that regulator.? The amp is in a 12v application.? Anybody have any ideas
> as to what model regulator it is? (or what I could substitute it with? Will
> be getting it from that auction site. :) )?Picture in the link...(that's the
> best I could get)?https://i.imgur.com/FIfJA4O.jpg
> I figure if I throw $5 at it in parts, it wouldn't hurt to try.?
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