Jan 152015

Sync troubles, i.e. rolling/flickering picture,curved sides, etc.., on your beloved arcade PCBs?

Now the “sync stabilizer”, copyright by ‘MARTINJONESTECHNOLOGY’, beats ’em all !

Today I assembled on a stripboard this little circuit and installed it in my supergun.It really fixed all my sync issues with my troublesome boards (mostly bootlegs) which I never been able to solve in other way (trying, for example, the LM1881 sync stripper/cleaner)

Circuit is simple to do (but very effective),it requires only few common components.Technically speaking, it doesn’t modify the sync signal frequency but only the horizontal pulses lenght bringing them back in the broadcast standards.


For bill of materials and other technical explanations, I refer you to the official page of the creator:


I highly recommend you to give it a try, you won’t be disappointed.

 Posted by at 9:23 pm

  2 Responses to “‘Arcade sync stabilizer’ by Martin Jones”

  1. Thanks for sharing! I’m going to build one of these ASAP in hopes it’ll once and for all fix my 15hz sync issues with my digital tri-sync Sanwa PFX monitors. I’ve had mediocre at best success with the JRok sync cleaner PCB.

  2. What value did you use for D1? I am planning on making this, too!

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