Re: Dead PET 2001

Re: Dead PET 2001

From: Philip Lord <>
Date: Sun, 09 Aug 2009 20:07:39 +0900
Message-id: <>
Yes, I admit I was checking the voltage on the inside side of the  
diodes with my multimeter (digital) set to AC. I just rechecked with  
it set to AC and the reading is still in the millivolt range.

If the diodes are indeed the culprit, I find it strange that both  
diodes would be open?

As for the J8 connecter, it basically looks new, no dirt, or burning  
at all.


On Aug 9, 2009, at 10:01 AM, Ethan Dicks wrote:

> On 8/8/09, William Levak <> wrote:
>> Also check the obvious,  are the pins for the plug clean and making  
>> good
>> contact?
> The plug is a good place to check for high resistance or loss of
> continuity.  I've seen plenty of those plugs (on PETs and on other
> machines) cook - brown and black plastic, oxidized pins, etc.
> Too many amps leads to heating leads to oxidation leads to resistance
> leads to more heating, etc.
> Fortunately, the connectors are still quite standard, so it'd be easy
> to replace the end of the cable (the pins on the motherboard are
> rarely permanently damaged, but make sure they are clean and bright -
> if not, they aren't difficult to replace or expensive).
> -ethan
>       Message was sent through the cbm-hackers mailing list

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Received on 2009-08-09 13:22:29

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