this project is about a PCB that connects the Commodore C128 video outputs (RGBi & composite / S-Video) to a SCART display device! I created this project online on www.easyEDA.com and ordered the PCBs from www.JLCPCB.com and the parts from www.LCSC.com
3DPrint
the STL files and some pictures of the case ... ready for 3D printing
PCB
PCB_C128_VIDEO2SCART_JDet_assembling.pdf = PDF for assembling
PCB_C128_VIDEO2SCART_JDet_PCB.pdf = the PCB view
Gerber_C128_VIDEO2SCART_DET_1_20191116125402.zip = the GERBER Files for ordering the PCB from a PCB manufactorer.
cable_howto
read the @cable_info.txt for further information of building the cables. There are also links to reichelt.de ... a electronic store where you can order the cables. look at the pictures ... they are showing the whole building process.
Schematic_C128_VIDEO2SCART_JDet.pdf = the schematic that shows the circuit of all components.
partslist.csv = a list of all components and the part number to order them from LCSC.
Please read the cable assembling INFO PDFs ... coming soon.
special thanks to Peter Grigull for designing the case and sharing the STL files.
switches:
SW1 switches between the 80 col. and the 40 col. mode.
SW2 switches between video (composite) or s-video signal in the 40 col. mode
jumper function:
short left&middle pin - monochrome is syncing the 80 col. mode - that works GOOD.
short right&middle pin - NOR generated HSync&VSync signal (generated with the JFET) is syncing the 80 col. mode. I noticed that this function do not work! during testing on the bredboard it went all well ... that is a little bit odd ... but you do not need this, because the monochrome sync works GOOD. SORRY for that ...
cheers ... JDet
For any questions (technical or experience), please use the issue tracking system of github.