JAMMA to NAOMI at 31KHZ - Does such an adapter exist

OldFoo · Post by **OldFoo** » Wed Mar 24, 2010 6:13 pm

I do not have a tri-sync monitor.

All of the Jamma adapters i've seen put out 15Khz.

I know I can use an upconverter but would like to minimize number of components

I have a couple of questions

What are the current options for 15Khz?

Which is the best option for 15Khz

Any avaialble that suport 31Khz?

Thanks

Bob Presutti

OldFoo · Post by **OldFoo** » Thu Mar 25, 2010 10:04 am

by-pass adapter and vga cable direct naomi to monitor

OldFoo · Post by **OldFoo** » Thu Mar 25, 2010 11:21 am

you will also need a upscaler its on on of my list of projects to do have the upscaler just need to get a river service jamma adaptor to see if i can get it to work,

will need to wire the upscaler inline to the jamma convertor t alow for jamma games to play on a 31k monitor.

OldFoo · Post by **OldFoo** » Sat Mar 27, 2010 2:01 pm

ALLPRO wrote:by-pass adapter and vga cable direct naomi to monitor

Hi Thanks, but source PCB output is 15 KHz.

Was hoping someone had come out with new JAMMA-JVS that upscaled the video alao (or gave option to set 15/31)

Thanks

Bob Presutti

OldFoo · Post by **OldFoo** » Sat Mar 27, 2010 2:02 pm

MaNiAc wrote:you will also need a upscaler its on on of my list of projects to do have the upscaler just need to get a river service jamma adaptor to see if I can get it to work,

will need to wire the upscaler inline to the jamma convertor t alow for jamma games to play on a 31k monitor.

Thanks,

That's what I figured. Was hoping someone came out with something new.

As far as the adapters that are avaialable now which is better

Riverservice?

Namco?

Other?

Thanks

Bob Presutti

OldFoo · Post by **OldFoo** » Sat Mar 27, 2010 4:08 pm

something like this?

http://www.jammaboards.com/store/cga/eg ... d_291.html

OldFoo · Post by **OldFoo** » Sat Mar 27, 2010 5:41 pm

use that converter only if you want play 24k games, i tested many standard 15k games with it and

1) you need to change settings every time

2) picture quality is S**t.

with 24k games is awesome

best jamma to jvs adapter are konami and namco because are lagless. riverservice one have some lag.

OldFoo · Post by **OldFoo** » Sat Mar 27, 2010 11:47 pm

I use this without any problems. That has been discontinued and replaced with the one linked earlier.

Picture quality looked OK to me (MAME still looked better), and since I only have Konami PCB boards (TMNT, Simpsons, ect.) I never have to change the settings.

OldFoo · Post by **OldFoo** » Wed Mar 31, 2010 6:18 am

I'm using the same converter with a 21" Lcd pc monitor and it works perfectly