The Sinclair QL Forum

Sorry, took a while to respond. The Alea boards don't work with 3x 16k ROMS, see:
https://theqlforum.com/viewtopic.php?t=4177
I'm sure he'll modify the files so that they will work. If you have the boards already they can be altered.

I can confirm that the repro boards do fit inside an original ...

Thank You so much to do the effort of desoldering the Original Cartridge and checking the tracks.

This has more sense of what I do in the PCB.

I already change the PCB in the github, to match the information you provided, thanks, hopefully this time will be OK.

[Edit: Btw, does the QL have a SCSI interface card? I like IDE better, and it's cheaper to get an IDE-to-SD interface, but curious if one was every created.]

Yes, at least CST sell a SCSI card, and the Thor computer also use a similar interface (AFAIK only compatible with one model of HDD and no ...

Unfortunatelly the board was not usable, there a error in 1 pin of the GAL.

I already correct the PCB on github, and test it, and works, at least it hold the clock... I need to read the doc and check the autoboot features, and perhaps conect something to the I2C bus to check.
in the doc is mention ...

AFAIK only Tetroid do an adaptor for use a standar lithium 3V battery.

As I'd really like to be able to plug in both the SGC & Qsound at the same time I'm going to look into getting parts to make a "simple" 2 port backplane (which will also therefore protect the QL pins). I've been reading a couple of interesting threads on here that make me think this may be ...

Removing the gal and put a jumper of cable between pin 19 and 20 of the gal socket shall be enough to disable the ram, but I was talking about a new PCB without any soldered but the 2 connectors.

Usually pins bend because you don't insert the card straight, perhaps a plastic or wooden block as a guide, glued to the case, will help to insert the card correctly.

Also one time you bend a pin, usually bend again so another solution is to replace the complete conector in the QL.

My memory ...

I try to draw in kicad the schematic of the Thor, based on pictures and information I found in internet.

Results is here: https://github.com/alvaroalea/QL_Thor20

If someone with a thor, can check and compare with the real one, I will appreciate the feedback.

Am going of Aalea's post and where the 4 sockets map out to.

Though it's interesting to see where it goes by putting them on Chri$ ROM board as you have, it's the original board that is off more interest to me and the whys.

Sorry, but I forgot about this project after getting some feedback ...