JAMMA TEST RIG (tv display or old pc monitor)

[hayabusa_fmw]

hey guys

i got a Jamma wired CP
with jamma Adapter
all wired + a Arcade power supply

I want to Hook this up to a TV or monitor
how is it possible?
i would like to test my boards but i can't get image...

(the connector i got is the one used for Arcade monitors)

The thing i would prefer to use a old pc monitor (10 yrs old or 5 yrs old)
I just cut the PC conector of it & skimmed the wires...(but i beleive i will get double image since it isn't the same as a arcade monitor? right?....)

I have an arcade monitor 13'' but... i would need to put an isolation & all those stuff & i don't have space on my desk to do so ect....

[spacies]

A tv via the scart plug is a simple solution.
I haven't tried cutting the RGB and sync and connecting through that.

Not sure about the PC monitor. I think there are adpaters for this.

[hayabusa_fmw]

is it all TV that has Scart???6
i don't know mine doesn't have it im pretty sure...
never seen it..

[Fozzy The Bear]

The thing i would prefer to use a old pc monitor (10 yrs old or 5 yrs old)
I just cut the PC conector of it & skimmed the wires...(but i beleive i will get double image since it isn't the same as a arcade monitor? right?....)

NO NO NO!!!! If you try to feed a PC Monitor with a 15Khz signal it will freak entirely! possibly damaging the monitor and the game board that you are feeding it from. You will not get a double image you will get no image at all and probbably some smoking components.

If you are in the UK, Europe or Australia and NZ then you can feed the RGB and sync signals directly into a SCART Plug and feed the TV which is then as good as a real arcade monitor. Because, that's effectively what it is.

If you're in the USA TV's do not have a SCART input, and then you only have two options....
1) Use an arcade monitor...
2) Use an RGB to VGA converter to view it on a PC Monitor.

Best Regards,
Julian (Fozzy The Bear)

[Angry_Radish]

Another thing that will work that I use to test boards is an old commodore 1084 monitor, they will handle the low res rgb great!
Poke around on craigslist and eBay, I see them from time to time still...
Cheers!
 

[BobA]

Old NEC multisync II and Old apple monitors will work as well.   Check old multisync monitors to see if it works at 15.75 khz.

[hayabusa_fmw]

I got one OLD nec multisync 5FG
it had RGB connectors in the back...
but doesn'T seem to work with it

ļI get double image....
I hacked it with ''home made wires..''
to connect it to the back...


Also do i need a AC line filter

because when i tested it
I plugged the AC to arcade power supply
did some wiring for a speaker.
& the rest was all on jamma & connected to PSU aswell.

Is that ok?
or it's dangerous?

[BobA]

Nec 5fg only goes down to 27 Khz according to its spec.   You cannot get it down to cga freq.  A double picture is expected on a monitor that cannot sync low enough.   

An ac line filter is recommended but if you have a power bar with a real supressor you can live without it.

[hayabusa_fmw]

by supressor  = surge protector??

because im using a typical power bar...
it's more or less to test a board 1 hr , or 30 mins , or even less..

i will now hunt a commodore monitor
Is it hard to connect it to the monitor?
do i need to hack wires into it?
let me know  never had or seen one upclose.

[Angry_Radish]

yeah, you have to hack the wires to build a cable.
Not too hard though, I'll see if I can find the diagram I used...

**edit** Here it is:

 -----------  Pin out (looking into connector from the outside)
 \1 2 3 4 5/
  \6 7 8 9/
   -------
     
1 Ground
2 Ground
3 Red
4 Green
5 Blue
6 Intensity
7 N/C
8 Horizontal sync
9 Vertical sync
     
You shouldn't need to connect pin 6 (or 7).
     
If the game has combined h/vsync (ie a Csync like all JAMMA boards) then
connect it to pin 8 (HSYNC) and leave pin 9 unconnected.

[SavannahLion]

If you're in the USA TV's do not have a SCART input, and then you only have two options....
1) Use an arcade monitor...
2) Use an RGB to VGA converter to view it on a PC Monitor.

Wait... that implies that you could feed the signal directly into a monitor with RGB connectors? I thought the voltage coming off of an arcade board was different than the expected voltages for a PC monitor signal. Or is that what SCART actually is? A nicely packaged RGB feed.

[BobA]

SCART basically makes it possible to use a euro tv as an arcade monitor.   Arcade monitors and TVs are basically the same piece of equipment for display purposes.  Only the method of input is different. (US/Canadian manufacturers do not have to so they do not provide a scart input.