Re: CBM 3032 (PET 2001N-32), no video?

From: Mia Magnusson <mia_at_plea.se>
Date: Mon, 26 Feb 2018 00:23:17 +0100
Message-ID: <20180226002317.000004c7@plea.se>
Den Sun, 25 Feb 2018 17:54:46 -0500 skrev "Mike Stein"
<mhs.stein@gmail.com>:
> Sounds like a lot of probably unnecessary replacements...

Agree. Especially the inductor cannot be bad unless a simple resistance
measurements indicates so.
 
> Diodes are almost always either open or OK; easy to test, as is L701
> so why replace if they test OK?
> 
> Why not temporarily cut the trace leading from the VR output to the
> rest of the board including L701 and see if you have 12V on the VR
> output; you may be wasting time on the power supply when the real
> issue may be something else shutting it down.

As the regulator is already desoldered, I'd just try replacing the
capacitor to see if it helps.



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Received on 2018-02-26 01:01:29

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