SG-1000 II RGB mod

[waali]

SG-1000 RGB mod using an ArcadeTV SMS2 RGB Bypass Board. I built two of RGB boards a while back but a mate only wanted composite for his Master System so I had a spare.

The picture after install is sharp and clear, the following picture doesn't do it justice.

 

Taking the SG-1000 apart was a simple task and the console board has all the main video points labelled... easy.

- R, G, B, CSYNC are all labelled

- Audio and 5V are on the RF connector. Audio on pin 4 and 5V on pin 2

 

Install

- Open case

- Remove voltage regulator heatsink

- Desolder and remove RF module

- Remove and replace voltage regulator with something modern (optional, but removes the need for the heatsink)

- Remove link wire on edge of RF location and resolder jumper wire on rear side (see pictures)

- Solder RGB bypass board to main board using old RF case side mount points, matching rgb pcb GND points and some link wire.

- Solder all main board connecting wires

- Solder socket connection wires (I used an 8 pin min din socket with a nut threaded on to it to stay in place. Worked a treat and looks factory from the outside)

- Reassemble case and test.

 

ArcadeTV SMS2 RGB Bypass Board via Oshpark.

https://oshpark.com/shared_projects/Ntagdloi

 

File link to use JLCPCB or the like

https://644db4de3505c40a0444-327723b...8c2c31cbc3.zip

 

SG-1000 main board RGB wiring points

 

 

RGB Board installed

 

 

Rear connector

 

 

Zaxxon in RGB (image isn't even close to how sharp and colourful the picture is)

 

Edited April 6, 2020 by waali
Added a picture

[Woody]

Nice. SG1000 was awesome. Great tweak.

[waali]

Cheers. Played it a bit today. Kids never really believed us when we said that the games we played when young were for the most part more difficult than modern games... they believe us now!