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JAMMA TEST RIG (tv display or old pc monitor)

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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.

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