The Sinclair QL Forum

Unused Mplane - was going to be the base of a Z180 unit along with the trump card I was also selling - I went down the P112 route in the end.

£45 plus postage - I imagine these are quite rare now - so grab a bargain...

Cover was removed as the Trump card was going to be the I/O and memory for a z180 project. Sadly I can't find the cover plate, but the unit was working with my QL prior to being stored. The ROM version is 1.37 Selling for £40 plus postage as missing the cover - you will need to do something with thi...

For Sale - one Minerva ROM v1.66 original pcb carrier and ROM. No paperwork or Floppy - just the board only.

£20 plus postage.

The RGB pinout is shown in the service guide. It's been a while since I owned one of these, but the splash screen starts first, with the F1 / F2 prompt, and if you don't hit any keys for about 30 seconds, the screen will default to TV mode - a blue screen and pink cursor. The left hand Microdrive wi...

Does anyone know if these are still made / available, or if anyone has a small stash of these?

I am talking about the plastic end cover that goes over the expansion cards that can be plugged into the left hand side.

You could put a scope on the RGB socket and see what you get on the synch pins - this will tell you if the ULA is at least producing video timing pulses. Yellow led suggests power is getting to the board, but it won't tell you much more than that. I would take a look a the circuit diagrams / and blo...

Unless you have a small board carrying the power and network connectors, to go up that end of the case. A small DC-DC buck converter can handle the power conversion from the nominal 9v to 5V / 3.3V or what ever you needed.

Interesting thread ... Was looking at my old empty QL case and wondering what to put in it - and been inspired by several threads on the forum. I was thinking about a propeller chip to handle I/O - a thing it excels at. It should not be too difficult to get a QL to talk to one of these on a dedicate...

All sorted - many thanks Rich.

Ah, thanks

That makes sense. So we are making the CS lines more granular, but still using the overall select for that I/O area to gate the other signals through the GAL(s)

I was planning on decoding 4, so just need to use 2 of the address lines A4 and A5 then.

Many thanks for the response.