QSound and QPrint Interface

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Derek_Stewart
Font of All Knowledge
Posts: 2066
Joined: Mon Dec 20, 2010 11:40 am
Location: Runcorn, Cheshire, UK

Re: QSound and QPrint Interface

Postby Derek_Stewart » Fri Nov 20, 2020 8:00 pm

Hi,

I have been using Ki-Cad to draw the schematic, which I have made the AY-3-8910 part for the schematic drawings.

The updated drawing from Silvester will help with finishing the schematic work.

I am more interested in repairing the PCB, but the person lent tge board seems to ignore my messages asking if I can have board returned.

So I will finish the schematic based on information received and photgraphs.


Regards,

Derek
nikosdoykas
Bent Pin Expansion Port
Posts: 91
Joined: Tue Oct 09, 2018 4:20 am

Re: QSound and QPrint Interface

Postby nikosdoykas » Sat Nov 21, 2020 8:00 pm

if Silvester schematic is ok... then we have this...
qdoun schem.png

and this....
qsoud board.png


Maskenlos
ROM Dongle
Posts: 8
Joined: Sat Nov 03, 2018 12:14 pm

Re: QSound and QPrint Interface

Postby Maskenlos » Thu Dec 03, 2020 10:16 am

Hi all,

I currently visit my parents and went to the loft. As expected I found my QSound QPrint board. I never used it and I have currently no QL system running. So I can not check whether its working. But I can help with all missing information. I did not read to all the thread but as I remember still missing:

1. Transistor is ITT 2222
2. capacitor close to 5v regulator is 10n

What information else do you need?

Best regards

Stephan


nikosdoykas
Bent Pin Expansion Port
Posts: 91
Joined: Tue Oct 09, 2018 4:20 am

Re: QSound and QPrint Interface

Postby nikosdoykas » Thu Dec 03, 2020 9:56 pm

yes.... and yes...
125348565_994645487697851_8212396334641875686_n.jpg



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