Date: Sat, 15 Jan 2005 04:24:53 GMT From: "James Sweet" <jamessweetnospamail.com> Subject: Re: Opened DI Casette - For those interested
"Tigger123" <tigger123nospam0nTheFarm.com> wrote in message news:tYidnZEuPJl0CHXcRVn-sQnospamrs.com... > More pics available upon request... 6 #20 Torx screws and the blackplastic > cover falls right off, no glue, no gasket . The individual coils easily > pull right out of their sockets, just like taking tubes out of an old radio. > Everything else is "frozen' / buried in epoxy. On the left there appears to > be a control module of some kind. There are e blue capacitors, a primary > voltage step up coil and an electrolytic capacitor. And, a little piece of > trivia for the di-hard Saab fan, the secondary resistance of each mini coil > is 825-835 ohms. The primary is less than 1 ohm. Dont leave the coils > upside down like I did, they will eventually leak past the O ring...not > visible in this pic. > > > Well that epoxy pretty much precludes any reasonable chance of repair. I'd love to know what's under the potting though and what actually fails, wouldn't surprise me if it's something as simple as a cracked solder joint. Just for the hell of it you could try tearing out that lytic and replacing it, though they usually fail gradually. Mylar capacitors (the blue boxes) occasionally short, I suspect there's semiconductors burried in the potting epoxy though, know anyone with an xray machine?