divide 57c pull up resistor on solderside

For experts to discuss very technical stuff and newbies to ask why the Spectrum they bought off ebay doesn't work.
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jojo
Dizzy
Posts: 91
Joined: Sun Jun 14, 2020 4:04 pm

divide 57c pull up resistor on solderside

Post by jojo »

Can someone please explain the need/use of the pullup resistor i see on several pictures of the divide 57c version .

value seems 10K .



is it needed ? , adviced ?
- Zx81-16k exp.- Spectrum 48 - Spectrum 128- Interface 1& 2 - DIVide - Zx flashcard- Zx printer - Ram turbo-Velleman interface system - Currah microspeech - Ql - 512k exp.- Ql printer - Cst floppy interf.- Double 3.5 fd- Minerva - Qimi-and much more .
jojo
Dizzy
Posts: 91
Joined: Sun Jun 14, 2020 4:04 pm

Re: divide 57c pull up resistor on solderside

Post by jojo »

Answer ;

This resistor is only needed if certain cf-cards won't boot properly .




jojo
- Zx81-16k exp.- Spectrum 48 - Spectrum 128- Interface 1& 2 - DIVide - Zx flashcard- Zx printer - Ram turbo-Velleman interface system - Currah microspeech - Ql - 512k exp.- Ql printer - Cst floppy interf.- Double 3.5 fd- Minerva - Qimi-and much more .
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