I can envisage a few more issues than loss of color if using the wrong oscillator. IIRC the NTSC & PAL VIC2 use a different divider to generate the CPU clock, as they use wildly different oscillators. On 12/01/2023 14:54, silverdr_at_srebrnysen.com wrote: > The crystal change is needed because the frequencies (like chroma subcarrier) used by PAL and NTSC differ. Those are not synthesised but derived from the crystal frequency. Generally you can change only VIC chip and leave crystal in place and you'll still have output but there'll be no colour. >Received on 2023-01-12 17:00:01
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