The Sinclair QL Forum

Hi Robbizz! I've had success creating a number of QL -> SCART cables over time, based more or less on the really useful site: http://www.fruitcake.plus.com/Sinclair/Spectrum128/SCARTCable/Spectrum128SCARTCableQL.htm I guess you might have used the same site and, like me, you've used that 'trick' to ...

Hi Martin For what its worth, attached here is an image from an old capture-trace I took of the MDV signal lines at the very start of a 'DIR mdv3_', as seen at the MDV-Extension port. MDV3 was a ZX unit, attached externally to the QL, as you'd imagine. MDV3_trace.png A few points: a) I was wrong abo...

Hi again Martin Not sure how a multimeter would.ipact your readings, but I regularly use my simple/cheapo USB digital analyser with PulseView software to monitor those signals. Monitoring the Erase and WP lines requires a bit of circuitry to prepare the signals for capture, but the 'sort of digital'...

Hi Martin! No harm in replacing the Cap in the reset cct, I'm sure. If the problem goes away after a further reset, it could be the 15MHz oscillator driving the ZX8302 ageing and not stabilising 'quickly enough.' But that's just speculation. As for the method used to select each MDV unit, I think I ...

Hi Martin! I've never had a problem with RESET that required that Cap to be replaced - when I have hitn problems with reset, it was either down to the ZX8302 or something more fundamental with the main ZX8301, but replacing the Cap is a simple and cheap enough operation to eliminate it. I am in the ...

Hi all! If indeed the v4 board uses the 'scrambled' method for data and/or address lines and if the ROM was programmed in a std programmer from a straight image, then therein would certainly lie one probable cause... A quick check would be to PEEK_W from Basic the base address where the CST ROM is e...

Ah, OK. Bit of a schlep from London...

I have the equipment needed to reflash the QL-SD device and have made the same change on one of mine successfully.

PM me and perhaps we can figure out how cost effective shipping to/fro would be.

Or are you planning to attend the Dormagen event in May?

Where are you afx?

(Just roughly, not asking for you to reveal anything sensitive!)

Just to update - Mr Southern was in touch yesterday via email - looking forward to recieving the new magazine!

Well done, Alex!