*** SOLVED *** pcb drawings for eprom cartridge and 64 rom b

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techy
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Re: *** SOLVED *** pcb drawings for eprom cartridge and 64 r

Post by techy »

derek ,

please post the details , i am really interested.


techy


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Derek_Stewart
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Re: *** SOLVED *** pcb drawings for eprom cartridge and 64 r

Post by Derek_Stewart »

QLROM.jpg
Here is a photograph of the underside of a standard QL ROM ard, with some wiring mods.

This allows a eprom to be programmed with the QL ROM and other Toolkits that would fil the QL ROM space.

Note that the internal QL Roms must be removed otherwise there will be a clash in Rom chips.

Derek


Regards,

Derek
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Mr_Navigator
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Re: pcb drawings for eprom cartridge and 48 rom board

Post by Mr_Navigator »

That address is no longer valid, it has been changed to

http://z00m.speccy.cz/quantumleap.html

However I haven't looked for the EPROM details you were after, but I did find something else interesting


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dilwyn
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Re: pcb drawings for eprom cartridge and 48 rom board

Post by dilwyn »

Mr_Navigator wrote:
That address is no longer valid, it has been changed to

http://z00m.speccy.cz/quantumleap.html

However I haven't looked for the EPROM details you were after, but I did find something else interesting
I hope this is the diagram you were after:
ql_eprom_module_circuit_diagram.png


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1024MAK
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Re: pcb drawings for eprom cartridge and 48 rom board

Post by 1024MAK »

Mr_Navigator wrote:
That address is no longer valid, it has been changed to

http://z00m.speccy.cz/quantumleap.html

However I haven't looked for the EPROM details you were after, but I did find something else interesting
Here

http://z00m.speccy.cz/ql/pics/ql_eprom_module.png

Mark


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