Video: Fixing Bad Video Quality on ZX Spectrum

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llopis
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Video: Fixing Bad Video Quality on ZX Spectrum

Post by llopis » Thu Feb 13, 2020 3:56 pm

t's pretty common for the classic ZX Spectrum and ZX Spectrum+ to have pretty bad image quality. Most of the time it's not just the RF that is to blame, but it's mostly due to the bad electrolytic capacitors. In this video I diagnose and fix that problem and we learn some more about how the voltage-generation circuit works on the Speccy.
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rooprob
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Re: Video: Fixing Bad Video Quality on ZX Spectrum

Post by rooprob » Thu Feb 13, 2020 8:48 pm

Great video. My issue 3 is experiencing this visual issue. I haven't completed recapping because I've inadvertently broken it, and I want to debug that first :/
Your video also provides a nice oscilloscope tut for me to confirm this before I swap the caps.
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