I thought the SP ROMs were for Model S computers.
I have two images for the Deltronics Model H - the H-124 Rev 16 image that does not support the 100-pt scoring holes, and the H-560 Rev 17 that does support the 100-pt scoring holes. Both were copied/burned to a 2716, although Deltronics first told me to use a 2732. I just reused the 2716 that was already there.
I recently changed the chip from the 124 to the 560 because I needed both machines to support 100-pt scoring, and only one machine did. Once I copied the 560 image to the 124 chip (after erasing the 124 chip first) - both now support 100-pt scoring.
I saved both images (and have a couple Model S images too) to my PC before erasing the other.
And yes, Deltronics also quoted us the super-high price for one chip.
let me know if you need either file sent...