There were quite a few of them made, I was a service center for commodore, used
to have semi's pull up full for repair. May actually still have chips for
them..You may have a rom problem or pla problem.
Bill
"Claude.W" wrote:
Hi
Lucky guy a SX64,,,but it depends how much you paid...I was offered one for
$500CAN not too long ago....sure I am crazy...
I would check all chips on the boards and push on all of the socketed
ones...specially the ROMs....
By the way, I have been told that 5000 of these SX64 were made...does that
sound right or can someone confirm this?
Claude
----- Original Message -----
From: Phil Guerney <guerney(a)bigpond.com>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, March 11, 2025 6:00 AM
Subject: Found a Commodore SX-64 but with a strange problem.
OK - So it might not be strange to those experts
in Commodore hardware,
so
I hope one of them reads this!
This was one of the few missing things in my CBM collection until
yesterday.
The system first appeared dead, showing just a
blank screen. But then it
worked fine with any of my assorted game cartridges in the cartridge slot.
To test the disk drive, I pulled out a cartridge-based spreadsheet which
had
load and save commands and the disk drive worked
OK.
The big surprise was when I put in the Simons Basic cartridge and this
heavy
old "portable" C64 came up with its
normal opening screen "SX-64 Basic"
etc
and it loaded and ran a variety of programs from
disk without a problem.
But
> without a cartridge, or with a C64 Super Expander cartridge, just a blank
> screen.
>
> Could it be a RAM chip that is faulty, with Simons Basic causing some
> relocation of memory that allowed the system to work? Unfortunately, the
> insides are not nearly as easy to get at compared to a standard C64.
>
> Thanks in advance for any suggestions.
> Phil
> (Brisbane, Australia)
>
>