Julian Perry <email@example.com> writes: > 1: it has no RF modulator, only an Svideo output. Since the RF > modulator is responsible for the chroma signal bleed into the > luminance signal, it would be interesting to see what the video output > quality is like - and whether the circuit can be easily adapted to > existing boards. That part is (as far as I know) derived from the modulator replacement circuit that some people developed a few years ago on forum64.de. The full (reconstructed) thread about is is here: http://www.forum64.de/wbb3/board2-c64-alles-rund-um-den-brotkasten/board107-sonstiges/board44-bastelecke/44092-hf-modulator-rauswerfen-c64c/ The schematic in post number 15 is the basic version that just creates standard Y/C signals from the VIC2's output. Unfortunately I don't see a (good) schematic version that includes the AEC stripe fix, but that is basically just a single inverter from a 74HCT14, a 2k2 trimmer pot from its output to the ground and a small capacitor (47pF or so) from the wiper to the base of the luma transistor. -ik Message was sent through the cbm-hackers mailing listReceived on 2014-04-23 19:00:03
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