Shameless plug: Got a Nanao MS2930 manual tri-sync monitor?

[chrisvg]

So a couple of months ago I created a simple hardware mod to convert my MS2930 from manual to automatic tri-sync.  I posted a big writeup about it in the Raspberry Pi & Dev board section (because I used an Arduino UNO board to do the processing), but I assume most people that come in here are probably not reading that area of these forums (I don't blame you!).

So, this mod simply feeds the HSync output from my VGA output on the PC in to the Arduino board, measures the frequency of the video mode being output, then sets a couple of MOSFETs acting as dip switches on a simple breadboard circuit that replicates the circuit for the dip switches on the remote board for the monitor.  The generated voltage from the circuit is then sent to the monitor via the ribbon cable that plugs in to the front.. just need to splice a couple of wires and then it's party time!

So, if you have a MS2930 and would like to run a frontend at a 31k resolution like 640x480, while still being able to run your games in GroovyMAME at their native 15/24k resolutions, and you don't want to have to fiddle around with those remote board dip switches every time you change games, go have a look at my write up here!

[Paradroid]

I saw this before... it is so cool! Well done!

[jtslade]

I wonder if this would work on a dual sync 15/24 MS8-26 monitor?


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[chrisvg]

I saw this before... it is so cool! Well done!

Thanks!

I wonder if this would work on a dual sync 15/24 MS8-26 monitor?

I'm not familiar with other monitors/chassis, so I couldn't definitively say yes or no, but I wouldn't be surprised if the sync mode dip switch works based on the same principle as mine.  For me it's just a simple circuit that takes a 12v current, passes through a few resistors depending on the position of the dip switch, so at the end the voltage has been altered.  This voltage then gets sent to the monitor to tell it which sync mode to use. Since your monitor is dual sync, I would imagine the circuit is very simple to replicate.

Hope this gives you some ideas