Date:         Mon, 8 Jan 2007 11:42:46 -0800
Reply-To:     jon <jon@KENNEKE.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         jon <jon@KENNEKE.COM>
Subject:      Re: Idle Stabilizer Control Unit Reverse Engineering
Comments: To: RAlanen@aol.com
In-Reply-To:  <bfc.d7721c6.32d389fe@aol.com>
Content-Type: TEXT/PLAIN; charset=US-ASCII

> never seen a  burnt out newer ICU.  Now, I've tried replacing that BD438
> transistor and  have had no luck.  Maybe there are other components on the board burned
> out  on the ones I tried, don't know, so I gave up experimenting.  Looks like
>  the ball is in your court.

There is also a "snubber" diode across the output of that transistor, so
that could go bad as well. I have not yet traced the circuit back to see
what other components could go bad, but I'll get to it eventually.

Jon

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