Looking for ROM Images for a CBM 4040 drive and 6510 Kernal for a TED System

[DistantStar001]

I recently "fixed" my C16. And by "fixed," I mean I tried to replace the 8501 with a 6510, only to discover that the replacement ROM chip was not working. Replacing with the original ROM and CPU brought it back. I tried multiple 6510s and all had been tested in multiple C64s. So I'm relatively sure that the replacement CPUs were not the problem.

In any case,I also have a CBM 4040 floppy drive that needed a similar part substitution, in this case it was the 6530 RRIOT which I ordered from Monotech, due to a single flash error that indicated either a zero page RAM fail related to the 6530 or a bad 6504. I ended up replacing both, however, the issue continued. This has me wondering if I ordered the right ROM version for my drive.

As such, I'm wondering if anyone has or can direct me to the correct files for these so that I might program a replacement? Assuming I can with the Promenade C1 I got for my C64.

 

[Ruud]

The 6510 is slightly different in the use of its I/O pins and the original ROM cannot be used.

The 4040 ROMS can be obtained here.

 

[ScottishColin]

I had to replace one of the ROMs (901468-11) on my 3040 (pretty much the same as a 4040). They're expensive to find a direct replacement so I used a 27128 EPROM and the adapter below:

23XX EPROM adapter board - Retro Electronics

23XX EPROM adapter board The 23XX adapter board which allows you to convert a standard 28 pin EPROM to 2316, 2332, 2364 sockets. This will allow you to

myretrostore.co.uk

Colin.

 

[Hutch]

AFAIK, the 6510 isn't drop-in compatible with the 8501.
There are a couple of 8501 replacements being made.

This one is FPGA, and he only makes a batch occasionally since they are not in high demand.

MOS 7501/8501 CPU replacement for C16/116/+4

Short but important information. All my interfaces are hand-made. I send them as soon as I can. Sometimes it takes a day, sometimes a month . I am doing what I can depending on the number of orders. I am not Wallmart or Amazon and I can not offer delivery on the same day. I'm a one-man company;)...

www.sellmyretro.com

Another uses a 6502 with an add-on daughter board.

MOS CPU Replacer (6510/8501)

Please read the entire description before ordering. Replace rare/expensive/unreliable MOS CPUs 6510 (C64) (8500 is same as 6510) 6510T (1551 floppy drive) 8501 (C16, C116, Plus/4) (7501 is same as 8501) 8502 (C128) The above 'CPUs' are just standard 6502s with some extra logic tacked on inside...

monotech.fwscart.com

 

[DistantStar001]

The 4040 ROMS can be obtained here.

Perfect! Thanks. But I still need the new Kernal for the 6510.

I had to replace one of the ROMs (901468-11) on my 3040 (pretty much the same as a 4040). They're expensive to find a direct replacement so I used a 27128 EPROM and the adapter below:

23XX EPROM adapter board - Retro Electronics

23XX EPROM adapter board The 23XX adapter board which allows you to convert a standard 28 pin EPROM to 2316, 2332, 2364 sockets. This will allow you to

myretrostore.co.uk

Colin.

Good to know. I'm not sure what ePROMs I have, but if I can erase the one sent and reprogram with the correct image, then I shouldn't need an adaptor. At least not for the 4040. I'm also looking to program a new PAL Kernal for my VIC-20 and I understand that an adaptor may be needed depending on the ePROM used.

AFAIK, the 6510 isn't drop-in compatible with the 8501.
There are a couple of 8501 replacements being made.

This one is FPGA, and he only makes a batch occasionally since they are not in high demand.

MOS 7501/8501 CPU replacement for C16/116/+4

Short but important information. All my interfaces are hand-made. I send them as soon as I can. Sometimes it takes a day, sometimes a month . I am doing what I can depending on the number of orders. I am not Wallmart or Amazon and I can not offer delivery on the same day. I'm a one-man company;)...

www.sellmyretro.com

Another uses a 6502 with an add-on daughter board.

MOS CPU Replacer (6510/8501)

Please read the entire description before ordering. Replace rare/expensive/unreliable MOS CPUs 6510 (C64) (8500 is same as 6510) 6510T (1551 floppy drive) 8501 (C16, C116, Plus/4) (7501 is same as 8501) 8502 (C128) The above 'CPUs' are just standard 6502s with some extra logic tacked on inside...

monotech.fwscart.com

I've seen these, but unfortunately, where I live the combined cost with shipping is often as much or even more than an original 8501.

 

[DistantStar001]

Found the TED 6510 Kernal images for both PAL and NTSC!

Commodore 16 & Plus 4 8501 to 6510 CPU conversion – Hackjunk.com