Philips Videopac G7000 Reloaded with a 100% working RGB output

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October 9th, 2024 xAD / nIGHTFALL Leave a comment Go to comments

I wanted to upgrade another Philips Videopac G7000 console and adding everything i wanted to do many years ago when i only added the RGB output instead of the RF one.

While i was doing the work of modifying the console i realized that something was wrong with the games and the RGB output, some games were missing the background color or the color was faded, other times the colors are wrong, but this defect was not present with all games and therefore it was not a wiring problem (colors are not swapped likes a problem with the R-G-B wiring).

I had never realized it and probably other people have never realized it either, because it does not happen with all the games but thanks to the Flash Multicart by Andrea Ottaviani i was able to try all the software released for the G7000 and confirm that something was not working correctly.

The problem is due to the type of RGB mod, i had taken the one from the gamesx.com site as good, that is the one that has been available from about fifteen years and that almost everyone has installed but there is another mod that is completely different and above all uses a particular pin of the Intel 8048 CPU (pin 39 [T1]).

Hesitantly i wanted to try this modification and it is actually all true, it works, now the RGB mod is perfect as for the Videopac G7200 (native with RGB output) and G7400 (Native RGB by adding the components that are missing on the PCB)

Later i discovered that this RGB mod was not born like this by chance, the scheme was designed taking inspiration from the original schematic of the G7200/G7400 where this particular CPU pin is used.

Below is the list of all the modifications and enhancements that have been made:

RGB Mod 100% Working with a extra pin from CPU (No more missing background or colors via RGB on G7000)
External RGB DIN Hirschmann Connector.
Power external Switch with Power-On Light.
Power external Connector.
Two Joystick D-SUB external Connector.
Replaced the original PSU with a Mean Well EPS-15-5.
RF modulator removed.
Simple Composite Video signal amplification circuit.
Separate composite Video and Audio output via external RCA connectors.

Gallery of the work done: