The Sinclair QL Forum

Yes, that would be great. I'm guessing it is using pin 3 and pin 2. No, on my Spanish mono composite vid lead the signal is connected to pin 1 of the RGB plug and the gnd to pin 3. I'm a bit confused. Pin 2 is ground on the RGB plug so the only combos ought to be 1+2 or 3+2. What does 1+3 give you ...

I agree, that table makes no sense. Since I have a US QL I just measured and pin 9 on the DB9 RST232 is giving out a 12 volt signal (grounded to pin 1). So it seems this one by Urs is more reliable:

Oh, I see now, that green switch I thought was just a power light but you actually push it in. Yes, I would leave in ports for both QLNET and an on/off switch. For the power switch I'm thinking a black small rocker flip switch would go nice on the back. I watch a lot of Over-The-Air TV so I'm going ...

So thinking a bit more on it, and something Martin pointed out with regard of the higher voltages for R+G+B, perhaps the PAL composite signal off of pin 9 on the MC1733 has too much voltage. Adrian Black is one of my favorite YouTube'rs and he did a mod on a cheap $10 hand held game where he put a 4...

I'm actually using it right now (with a German QL, which I believe is the same as a US one) because I have another going to the same TV's scart port and it means I can use the remote control to switch from one QL to the other. Yes, that would be great. I'm guessing it is using pin 3 and pin 2. Mart...

Maybe you have a fault in the colour modulator circuit of the MC1733. This may not effect the black and white signal. it's a cheap Walmart monitor that has every connection imaginable in the US: VGA, HDMI, Component, Composite, and RF By component do you mean RGB. If so, can you use that instead. Y...

Sounds fantastic! I'd be happy to use such a case, especially if it contains two extra holes for QLNET jack sockets at the side, and "Q68" 3D letters like the "QL" letters of the original. Also nice would be less height, maybe moving the power switch away from the front panel. I...

So I have a US QL and after some investigating I found that I could use pin 2 (GND) and pin 3 (Composite monochrome) off of the RGB connector to get a pretty nice monochrome TV and Monitor picture on my SuperSonic monitor (it's a cheap Walmart monitor that has every connection imaginable in the US: ...

...but I do want to tinker beyond that with the Q68 so I think at one point (maybe late spring) I will try and fit it into a stock case. That'll give me time to scour eBay, etc, for one. I'd rather not take my QL apart again (having already completely disassembled it down to the case at least once a...

Do you target a british or international QL case? For the German QL case, a long aluminium bracket is also something I'd consider. A mechanically robust solution, also providing RF shielding. I must have published my CAD data for the Q68 panels somewhere. If you can't find them, please feel free to...