Sanyo 20EZ - want to hook up to my JAMMA test rig... looking for a solution.

Bullwinkle

Member
Joined
Sep 10, 2009
Messages
859
Reaction score
8
Location
Rochester, New Hampshire
Sanyo 20EZ - want to hook up to my JAMMA test rig... looking for a solution.

I want to be able to test a Sanyo 20EZ in the comfort of my home..but alas, I have no nintendo cabs. I realize the signal needs to be inverted. I've seen from arcadeshop a kit to convert the Sanyo right on the chassis, but again, I'm not looking for a permanent solution, just a quick adapter to allow me to test on my home test bench.

I've also seen mention of inverter boards, but can't seem to locate a source. Ultimately, I'd LOVE to locate some instructions on how to build my own, but I'd settle for a link on a pre-made inverter board. I also read that some newer Sanyo EZs actually came with an inverter board, is this the case and what would it look like? I have a 2nd Sanyo EZ chassis that has an extra board mounted to the cage that protects the HV section..would this be the board that is being referenced? and if so, is it all I would need other than 100v to use a JAMMA harness?

(yes, I already have a way to plug the monitor into 100vac power)

I've searched on here and a few other forums but can't find anything with a link to a product (well..a link that works) or instructions.

Any suggestions?

Thanks
 
Last I knew, Mike's Arcade had repro inverter boards. I ended up picking up an original from a member here who realized that his DK didn't need it.

For my monitor testing station, the video part has interchangeable ends. One for a standard sized monitor (WG, G07, etc) and a special end just for EZs.

The isolation transformer that I use has multi taps, but I keep it at 100V. It's been fine for both 120V and 100V monitors, since the output is closer to 110V than 100.
 
An old down and dirty trick:

You can run the color inputs through an 74HC04 inverter IC and the outputs
from the IC into the monitor.

The colors will be a little washed out but for test purposes should
be acceptable.

JD
 
just use the inverter board you have on the fly cage of your other sanyo.

use a 100v transformer and your good to go.

then make the appropriate video cable to go tho the input on the inverter board and git'er done.

Peace
Buffett
 
thanks for the suggestions everyone. As buffett suspected, the board on top of the cage is the inverter board... add a variac for power and a homemade pinheader/converter so I can just plug and play and I'm good to go! monitor fired right up... in vertical collapse..but that's what I expected...knew it was toast already which is why it's on my testbench. going to try the other chassis and see if I can luck out just once this week with a monitor (yes buffett, apparently I'm the king of vertical collapse this week! :D)
 
monitor fired right up... in vertical collapse..but that's what I expected...knew it was toast already which is why it's on my testbench.

Don't forget to check the service switch on the chassis. When it's flipped, it causes vertical collapse. I've actually seen those switches fail before.

-Ian
 
Back
Top Bottom