Harlequin video modifications

A place to discuss the ZX80's and ZX81's younger brother - the Sinclair ZX Spectrum
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Joined: Wed Jul 07, 2021 2:42 pm

Re: Harlequin video modifications

Post by dac »

Yes, you are right: original resistors values give the best image.

For RGB CSYNC I omitted R48, R49, C35 and changed R18 from 270 to 1K, that gives a CSYNC amplitude of 0.3V.
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