2 Board Jamma Switcher

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   Hi All,

Does anyone have or can recommend a reliable 2 board Jamma Switcher?

Both boards are quite valuable that are being used to don’t want anything with a reputation for moody behaviour.

Any help appreciated.

Thanks

Dave

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neoretro Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 20 Jan 2017 Status: Online Points: 1277 Feedback: 5	Post Options Post Reply Quote neoretro Report Post Thanks(0) Quote Reply Topic: 2 Board Jamma Switcher Posted: 12 Jan 2021 at 9:36am
	Hi All, Does anyone have or can recommend a reliable 2 board Jamma Switcher? Both boards are quite valuable that are being used to don’t want anything with a reputation for moody behaviour. Any help appreciated. Thanks Dave

Digimon Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 16 Sep 2016 Location: Hamburg - GER Status: Offline Points: 259 Feedback: 0	Post Options Post Reply Quote Digimon Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 10:10am
	I prefer the EZ Switcher from RiddleTV. They are not cheap, but very reliable. They are flexible, so you can add up to 8 PCBs to your setup. https://riddledtv.com/arcade/ez.html#EZ8Way Edited by Digimon - 12 Jan 2021 at 4:36pm

r-type Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 26 Mar 2012 Location: Buckingham Status: Online Points: 608 Feedback: 5	Post Options Post Reply Quote r-type Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 10:54am
	I was going to say the RiddleTV ones. From what I've read the power is properly switched on them so only the selected board is powered up. I believe some of the other ones used to power up all boards that were connected. I hope to place an order for one of their Track & Field/Hyper Sports ones soon.

John Bennett Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback Senior Member Joined: 01 Jan 1998 Location: Newcastle Status: Offline Points: 17364 Feedback: 5	Post Options Post Reply Quote John Bennett Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 12:05pm
	I can see the logic in powering up all the boards if it's going to be used to allow random gaming folk to leaf-through the games at will until they make their minds up (regular, repeat power-cycling doesn't feel a nice thing to do to 30+ year-old electronics).
	http://www.philwip.com -sibling 'fix-off' (I’m losing by miles).

mysticmonk Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 02 Mar 2017 Location: Ireland Status: Offline Points: 2330 Feedback: 5	Post Options Post Reply Quote mysticmonk Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 1:11pm
	Picked this up off an op, last tested in 1992, a "jamma multiplex issue 2". It's filthy and untested so far. I think it powers both boards at once. So it comes highly recommended :p

FrancoB Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 07 May 2013 Status: Offline Points: 428 Feedback: 5	Post Options Post Reply Quote FrancoB Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 2:17pm
	How is the 5V regulated on these things? Is the 5v adjustable for each board or can you only run them all at one voltage? If it's the latter I guess it's not a problem if you have boards with similar power draw but you may end up running the 5v too low or too high on some boards.

Retroman839 Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 08 Sep 2017 Location: Uk Status: Offline Points: 2897 Feedback: 0	Post Options Post Reply Quote Retroman839 Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 3:05pm
	yeh like naomi don’t like 5.1v but most bootlegs need 5+ but who would have run a naomi and boot back when this was made? is this a chinese product? is that a pat test sticker surely not? Edited by Retroman839 - 12 Jan 2021 at 3:09pm

John Bennett Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback Senior Member Joined: 01 Jan 1998 Location: Newcastle Status: Offline Points: 17364 Feedback: 5	Post Options Post Reply Quote John Bennett Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 3:45pm
	Superb point. Sounds like it's as good as your SMPS is at holding 5V over a variety of loads.....
	http://www.philwip.com -sibling 'fix-off' (I’m losing by miles).

neoretro Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 20 Jan 2017 Status: Online Points: 1277 Feedback: 5	Post Options Post Reply Quote neoretro Report Post Thanks(0) Quote Reply Posted: 12 Jan 2021 at 4:10pm
	My concern with both being powered at the same time is if one went pop and caused some funny business with the supply it would take the other with it. But agree cycling on boards (especially Galaga and Galaxian which are bloody old) isn’t ideal. Although I would probably only change on the odd occasion

Venom Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 04 Jun 2018 Location: Bristol Status: Offline Points: 409 Feedback: 5	Post Options Post Reply Quote Venom Report Post Thanks(0) Quote Reply Posted: 13 Jan 2021 at 11:18pm
	I used to run one which had a IR to switch the game from one to another. Was fine apart from one day unlplugged the main Jamma and must of plugged in wrong by one pin and the bastard wiring got hot and started to melt the power wire, noticed the smell !! Luckily my mame pc and Neo geo MOBO where fine as used in my neo geo cab !