The Sinclair QL Forum

Just a update, finally, thanks to the photos that TOnyt post, and aditional photos that B. Dixon post on facebook, I'm been able to complete the schematic and board, and It's working!!.

It's not only functional with 68K/OS, can also be used to test any ROM (it block the cartridge port as use the 64Kb) and this include the Diagnostic Rom from stephen_usher that I think is a very interesting use.

Great Job Alvaro!!!!!

Hi,

I have just received some PCBs, I will get one built next week.

Derek_Stewart wrote: Fri Aug 22, 2025 10:16 pm Hi,

I have just received some PCBs, I will get one built next week.

when you order the PCB?? I just made some small changes today just before post, main issue, if you order recently, is the footprint of the switch, you will need to bend the legs and enlarge the external holes.

aalea wrote: Fri Aug 22, 2025 10:21 pm

Derek_Stewart wrote: Fri Aug 22, 2025 10:16 pm Hi,

I have just received some PCBs, I will get one built next week.

when you order the PCB?? I just made some small changes today just before post, main issue, if you order recently, is the footprint of the switch, you will need to bend the legs and enlarge the external holes.

I ordered about 2 weeks ago, I will have a look at the changes.

Nice work Alvaro!