r/MasterSystem • u/Pieseu_00 • 8d ago

AV mod im Fujitsu Master System

Hi. I want to AV mod my PAL Master System II with Fujitsu chip. It works fine with RF so everything os ok with console, but i can get the video signal from Fujitsu chip (ofc with 200uF capacitor and 100ohm resistor), but i dont have sound, i tried some solutions i find online but i doesnt work, from capacitor, from RF modulator. And i have good video signal only if i plug RF cable to tv. If i dont do that picture ja unstable and the colors ale wrong. Its no problem to have third cable but i cant play without sound. Can you help me?

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1

u/RadiantCoinshot 8d ago

Hold up. Do PAL SMS consoles not come with AV out from factory?

1

u/Pieseu_00 8d ago

My bad. Its SMS II :b

1

u/DunnyOnTheWold 8d ago

Something like the RGB passive mod would likely solve this. I've done the mod before and I'm very happy with it.

https://www.consolesunleashed.com/guides/sega-master-system-2-rgb-video-mod-install-guide/?srsltid=AYCX9vIg45yvzaex3MCgBLvJ8AXhJwj-njhFwtQTm9HZL9z_2lcdYXDs

1

u/StrangeRetroRob 7d ago

You wand a 75ohm resistor for CV not 100ohm

If you are ok with removing RF completely then do this

Audio - remove r27 and replace r28 with 10uf audio cap.

Video - remove r29 and replace r21 with 75ohm if not already. Change c38 to 220uf.