C64 power supply Was: Re: C64 Problem

From: fachat (afachat_at_gmx.de)
Date: 2005-06-29 23:27:34

On Mon, Jun 27, 2005 at 12:37:54AM -0400, William Levak wrote:
> > Another question: The new C64C has a serial number in the 100000s
> > and an old-style (like my original C64) power supply. The other
> > C64C has a brick-style power supply, it has a serial number in the
> They are interchangeable, but not identical.  The external power supply 

Interestingly, according to the schematics and the pin layouts, they
should not be completely interchangeable.

In the old board schematics pin 4 on the plug is not connected,
while pin 5 is +5V. In the new board schematics both pin 4 and pin 5
are +5V.

The old-style power supply has pin 4, but no pin 5 - it should actually
not work at all with an old-style board, but does here...
The new, brick-style power supply has pin 5, but no pin 4, but should
work with a new board anyway.

I didn't try to swap them yet, though.


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