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Original Double Dragon PCB no sync with OSSC v1.6

toiawaseru

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Greetings.

Encountering a 'No Sync' issue attempting to run an original Double Dragon PCB on a Minigun Supergun connected to an OSSC v1.6.

I use this setup with other PCBs and have not encountered this No Sync issue.

Any thoughts on what the cause may be? I have read about the potential need for -5v but that topic seemed to be specifically related to a lack of audio.

I also have a Sigma AV5000 that I can run to my HD monitor without using the OSSC since the AV5000 can output SVideo and I have a separate converter for that video output but I only have an MVS to Sigma harness so I believe I would need to buy a JAMMA to MVS adapter first ala the JNX Big Red in order to go the AV5000 testing route.

Thanks in advance for any help.
 
That is one of a handful of pcbs even on the tink 4k I have to set to wide sync including f3 and m72.
It is a non standard signal.
Love double dragon btw. Great game.
I can try it on my ossc and see if it will sync later this week.
 
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