RF Modulator Replacement

Zoom image	from 25,00 EUR incl. 19% sales tax excl. Shipping Shipping time: 3-6 weeks Stock: 17 units No customer review available. Write the first one!

Scope of delivery:
	Assembly Kit (Stock: 7 units!)
	Assembled (Stock: 10 units!)	+8,00 EUR

Stock: 17 units!

The C64 RF Modulator replacement based on the schematics of similar designs like Zero-X/OMS's Modified Commodore RF Modulator Design and JMP$FCE2's S-Video only design. This board can be used

to replace a damaged or defective RF modulator in your C64,
to improve the sharpness of your video output,
or as a modern solution to replace the composite/luma/chroma output functionality of the original modulator on new motherboards such as the SixtyClone or Bwack’s KU-14194.

This design has a few goals that set it apart from the others -

It is a universal solution that fits and is electrically compatible with both the C64 and C64C without having to change components on the board or run jumper wires for power.
It is easy and inexpensive to build with only a single, small PCB and all through-hole components.
It provides high quality S-Video (Y/C) output while maintaining composite video output for compatibility.
It provides adjustable luma/chroma output levels to fine-tune the S-video signal. This allows for the best possible compatibility with a wide variety of different board revisions, VIC chips, aging components and monitors. Adjustable levels mean this board can also be used with s-video cables with or without an inline resistor to eliminate “checkerboarding” caused by too high of a chroma level.

This RF modulator replacement is compatible with motherboard revisions 250407, 250425, 250466, and 250469, and both NTSC and PAL VIC-II chips. It should also be compatible with Bwack's KU-14194 board since it uses the standard longboard RF modulator.

It is not compatible, however, with the early revision 326298-01 boards with the 5 Pin AV Output. This revision uses a different modulator pin layout, and the video signals are not combined in the modulator. They are instead processed with discrete components inside the VIC-II can.

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