[Coco] [Color Computer] Question about the CAT 26-3129 disk controller cart

[waltermi@rogers.com [ColorComputer]]

I purchased a disk drive FD 500 and 26-3129 controller. I was able to test them at VCFMW and they both worked great (thanks again guys).  I brought them home. Then I unpacked my recent eBay purchase and set it up. It powered up and all keys work.  ( a COCO 2 ) with 16 k ram (expandable to 64 with 2 64x4 ram chips)  version  1.3 basic in the standard 8 k rom (but switchable to 16k because the rom socket on the motherboard is 28 pin).

I plugged in the controller and the boot message at the top of the screen did not indicate disk basic like it did when we tested it at the show.    I cleaned the contacts on the cartridge port and cleaned the contacts on the cartridge but no luck.

I think I remember Neil saying I would need extended basic roms before the disk basic would work.  Can anyone confirm this?   I was going to burn a 16 k 27128 this evening as soon as I find the file and then change the jumper setting on the board to 128k.

The testing was all done with COCO 3's at the show, mine is a COCO 2 with 16k ram and 8k rom.  I am hoping to get a COCO3 soon.  I know this cart does not require 12 volts as it worked fine in the COCO 3.

Unfortunately I don't have another cart or game cart to test with to verify its not the COCO 2 with basic 1.3.

Help?   :0)

 

 Do i need extended basic 1.1 in order to use the disk cart?