No, the GC doesn't work in the BBQL, instead now it flickers the screen a bit and then makes an awful fuzzy noise from the QL speaker. Then I noticed that the backplane is not entirely standard. What I thought was some sort of regulator to provide extra power to the backplane is actually a TIP112 transistor. The wiring is a bit messy and I'm not sure where that goes yet.
I did however put all the old case modded QL contraption back together and to my utter shock, it booted and tells me it has a HDD card and Gold Card. So that appears to be ok. I cannot get further for now as I don't have an AT keyboard to attach to it (and the original k/b connectors are well hidden). Here is a pic:
Back to the original BBQL - it doesn't seem right since I changed the ZX8301. It seems to take longer to react to the F1/F2 keypress and sometimes I get weird large numbers at boot, like this:
The ZX8301 in the donor wasn't actually labelled as a ZX8301 and didn't have this 5-diode mod like the original:
Could that be the cause of my new BBQL woes?
https://QXL.WIN
Collector of QL related computers, accessories and QL games/software.
Ask me about felt pads - I can cut them to size and they have proved excellent for mdv data recovery.