is it safe to leave my power supply in my cab with the jpac?

[william1983]

i was thinking is it safe to leave my power supply in there hooked up the jpac??

if i hook it up correctly and do not put it in backwards??

i spent all my money i had saved to get one.. my power supply blewup on my computer about 3 days ago..

so i wanna be sure its safe to laeve my arcade power supply powered up when hooking it to the j-pac..

i really dont wanna unhook cause i have no idea how it goes back on the power supply....

and has anyone left theres in.. did it fry the j-pac?

also to the people who own both a J-PAC and AVGA if i buy both the J-PAC and AVGA i dont have to do no wiring or soldering or none of that crap right?? it is PLUG AND PLAY??

oh forgot to mention this is for an jamma cabinet

[Sasquatch!]

Just to clarify, are you asking if it's okay to leave your PC powered on while you are plugging in your JPac?  If so, I don't have a definitive answer, but I sure as heck wouldn't do it.  If that's not what you're asking, then could you clarify please?

[william1983]

i am saying is it ok to leave my ARCADE power supply still powered AND hooked up to the jamma harness?? while hooked to the J-PAC??

i know its not safe to hook it up while turned on!

and if i buy both the Arcadevga+J-PAC is there anywiring that needs to be done???

i know i have to hook up buttons 4'5'6 thru the srew connectors..

BUT do i have to modify my jamma harness?? like cutting the RGB or something like that??

thanks to anyone helps me out!!

[buddhavelvet]

The JPAC receives power from the PS/2 keyboard port cable attached to a PC. You should disconect the cabinet power leading to the jamma connector before installing the JPAC. Also, please don't electrocute yourself. Power can be quite shocking at times.  :P

You shouldn't have to splice any of the RGB wires if the JAMMA cabinet worked fine in the 1st place. Find the RGB lines on the JAMMA harness and trace them to the monitor, they should work fine. The vga cable that comes with the JPAC is all you should need if the JAMMA harness is wired correctly. If it doesn't work, you may have to rerun the wires from the monitor to the JAMMA harness.

Here's a note from ultimarc: http://www.ultimarc.com/jpac2.html

"Cabinet Configurations:

It is usually preferable to remove any power supply which is fitted inside a JAMMA cabinet, leaving only the monitor powered. With no game logic board to provide a load, most cabinet power supplies would not work anyway. Also keeping 12 volts away from the J-PAC will eliminate the risk of damage in the event that the JAMMA connector is ever plugged in backwards. Another alternative is to unplug the AC supply to the power supply. Ensure that doing this does not also disconnect the ground!

IMPORTANT: If a cabinet power supply IS still operating, make doubly sure the JAMMA connector is plugged on the correct way round otherwise the J-PAC will be damaged as 12 volts would be applied to the inputs.

Most older arcade monitors require an isolating transformer. DO NOT REMOVE THIS if fitted otherwise the cabinet and monitor frame will be directly connected to the mains power supply!

Double check the monitor frame and the control panel are directly connected to ground. If the ground is poor, a voltage could build up on the cabinet connections which is not only dangerous but will destroy the J-PAC. Be especially careful if you have removed the power supply as this may result in breaking the grounding of the monitor which could have been routed through the power supply. "

[william1983]

so what hes really saying is if i leave in it will fry.

and

if i take it out theres a chance it will fry it?

i guess when i get it i will label the wires then un hook them..

leaving no power going to the j-pac?? so i am safe if i do that??...i hope so..