Sega genesis c-sycn problem

[negativ72rus]

Hey! I built a GBS control. When connecting sony ps 1 everything is ok But when connect sega genesis, there are problems with synchronization. When connecting the sega genesis, a composite signal separator is used. The cable and console are no problem, everything is ok on the TV. What could I have missed when assembling the GBS control?

[SteppoBlazer]

I live in a PAL territory so for you might be slight different who knows. I had the same issue you had with my PS1 and SFC consoles. I fixed it by soldering both VS and HS to Pin 20 of the female SCART connector, then I used a 680 ohms resistor between them and the Pin 20. It turns out that the GBS board I have does not like the voltage emitted by the Sync signal of my SFC and PS1 for some reason, and adding a 680 ohms resistor to the Sync signal on PIN 20 of the female SCART connector fixed any syncing issues for me. Hopefully I was able to help! Cheers!

[negativ72rus]

Я живу на территории PAL, так что для вас может быть немного иначе, кто знает. У меня была та же проблема, что и у вас, с моими консолями PS1 и SFC. Я исправил это, припаяв и VS, и HS к контакту 20 гнездового разъема SCART, затем я использовал резистор на 680 Ом между ними и контактом 20. Получается, что плата GBS, которая у меня есть, не любит напряжение, излучаемое синхронизатором. сигнал моих SFC и PS1 по какой-то причине, и добавление резистора 680 Ом к сигналу синхронизации на PIN-коде 20 гнездового разъема SCART устранило все проблемы с синхронизацией для меня. Надеюсь, я смог помочь! Ваше здоровье!

Thank you dear friend! Everything worked out :)

[airainchoc]

May I ask for a schematic and/or more detailed instructions ?

I'm having the same problems with french RGB master system 2, french RGB megadrive 2, jap SFC, Jap Saturn

Thanks

[negativ72rus]

May I ask for a schematic and/or more detailed instructions ?

I'm having the same problems with french RGB master system 2, french RGB megadrive 2, jap SFC, Jap Saturn

Thanks

Hi1 I made this, and it's work fine

[airainchoc]

Thanks 👍 I added a lm1881 sync stripper before the start input, it really helps with almost all consoles.

Still no sync with my SFC (ordered a retrogamingcable c-sync scary cable, maybe that will do), and bad sync from french RVB Mastersystem (not sure what to do with it, maybe I'll change it for a Pal one with RGB mod)

[rpf16rj]

May I ask for a schematic and/or more detailed instructions ? I'm having the same problems with french RGB master system 2, french RGB megadrive 2, jap SFC, Jap Saturn Thanks

Hi1 I made this, and it's work fine

Hi everyone.

I had with same problem that my mega drive 1 jap.

I added 680ohm resistor at composite sync and work well. Thanks for this hit.