Re: How to burn a new 901229-05 ROM for 1541?

From: peter_at_rittwage.com Date: Tue, 9 Mar 2010 16:08:21 -0500 (EST) Message-ID: <55458.10.2.0.30.1268168901.squirrel@rittwage.com>

> I have a faulty 1541 drive. When I power up with no computer connection,
> the red light and the motor just stay on forever. Page
> http://personalpages.tds.net/~rcarlsen/cbm/fix1541.txt suggests that the
> ROM 901229-05 could be broken.
>
> How can I burn a new copy of 901229-05? The image is in
> http://www.zimmers.net/anonftp/pub/cbm/firmware/drives/new/1541/1541-e000.901229-05.bin
>
> Or can I buy it from somewhere?
>
>
>        Message was sent through the cbm-hackers mailing list
>

I think that pin-compatible EPROMs are not available any more, so it may
be best to find that exact replacement part rather than trying to jury-rig
a custom pin swapping adapter.

You could check arcadecomponents.com, as he has a lot of Commodore parts,
or you could ask on Lemon64.com forums to see if someone has a spare they
could sell you.

Pete Rittwage

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