This is a clone of the "Adapteur R.V.B.", used by the french market Master System II for video output, based on the schematics avaliable at SMSPower.org.
This board is intended to be a cheap diy option for consoles which have lost their original cable, and comes with all the quirks of the original circuit.
The wires of a custom DIN-8 AV cable should be soldered to the through hole pins in the bottom of the board to connect the board to an original console.
Note: the non-critical 12V pin 8 signal which sets the tv to 4:3 mode has been ommitted from this board for simplification.
The location and values of all Components are specified on the board itself.
| Component | Quantity |
|---|---|
| Female PCB SCART Connector | 1 |
| 1µF Decoupling Capacitor | 1 |
| Generic Diode | 1 |
| Generic NPN Transistor | 4 |
| 27Ω Resistor | 4 |
| 68Ω Resistor | 4 |
| 75Ω Resistor | 2 |
| 100Ω Resistor | 1 |
| 820Ω Resistor | 1 |
| 1kΩ Resistor | 3 |
| 3.3kΩ Resistor | 3 |
| 10kΩ Resistor | 2 |
| 12kΩ Resistor | 3 |
The kicad folder contains the original files used to produce the board
The gerber folder contain zip files with the gerber files for board production
As of 2023-09-29, my latest board revision is v0b