LCD help for a newbie

Iluvcars

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I put a lcd in my 60 in 1 last night. Pulled out the crt. They had the controls and crt spliced through the isolation transformer. I kept everything the same except the isolation tranformerwas being held on to the monitor cable by yellow twist nuts. It left two wires exposed when it came off. Bit me a little when I touched it. Anyway, worked well but when I moved the cabinet, one wire, i assume from the harness that I have yet to identify came off and now the games starts up but the joystics dont work. Player 1 and 2 start the game but you cant move the player in any direction. The wires are hacked to pieces so I thought I would put a new jamma harness in. There is alot of tension as the wires have been cut and spliced and butted and twisted together so I can relieve that with a new harness. I need to know what the layout of the power supply hookup would be since Im told that the isolation transformer is no longer needed. How can I splice the new monitor into the current power supply so I dont have two cables to plug in for one game? Also, I twisted the exposed wires from the isolation transformer together and put a cap on it. Now, the game pops fuses. Im assuming thats shorting the game out? Can i leave everything the same and clip off the plug end to the monitor and splice those two wires to the top of the isolation transformer? Would this destroy the monitor? Sorry with all the newbie questions. Any help would be appreciated.
 
Sounds like one ground wire came loose from the joystick wiring. Alot of times they are daisey-chained together, so if one falls breaks a critical spot, they can all go out.
 
How can I splice the new monitor into the current power supply so I dont have two cables to plug in for one game?
Just wire them in parallel with the existing power wires before the isolation transformer. You can disconnect the old isolation transformer, since you won't be needing it.

Also, I twisted the exposed wires from the isolation transformer together and put a cap on it. Now, the game pops fuses. Im assuming thats shorting the game out?
Yes. That's the very definition of a short circuit. What you've done is exactly the same as putting a paper clip into a wall socket. You're lucky the game has fuses, you could have started a fire.

Can i leave everything the same and clip off the plug end to the monitor and splice those two wires to the top of the isolation transformer?

You don't need an isolation transformer for an LCD monitor. Disconnect the input from the isolation transformer and connect that to your computer monitor. You can just cut and splice the power cable, or install a socket.

Sorry with all the newbie questions. Any help would be appreciated.

Honestly, I would suggest doing some reading before you go back to messing with AC wiring. This is really basic stuff - just like house wiring. You shouldn't go cutting and twisting wires together if you don't know what you're doing (i.e, shocking yourself and shorting out a transformer with a wire nut connection). You could hurt yourself.

There are lots of simple guides to basic electricity online. Do some reading on how wall outlets and switches are wired, and you should have no problem doing it.

-Ian
 
Honestly, I would suggest doing some reading before you go back to messing with AC wiring. This is really basic stuff - just like house wiring. You shouldn't go cutting and twisting wires together if you don't know what you're doing (i.e, shocking yourself and shorting out a transformer with a wire nut connection). You could hurt yourself.

There are lots of simple guides to basic electricity online. Do some reading on how wall outlets and switches are wired, and you should have no problem doing it.

+1 million, I scares me to think that you saw two bare wires coming from a source and your first thought was to tie them together. Bob Roberts has some wiring diagrams on his site and I'm sure google will return a bunch as well. Take your time and read as much as you can.
 
Newbie mistakes

Ok, between you guys and Bob Roberts I think I should be ok. I appreciate the help. Ive only done 5 cabinets in the past which didnt need the isolation transformers so Ive never had to work with them. I have a better understanding of the use. I should be able to tap into either side of the iso to get the 115 needed to run the lcd. I would then ground the green wire from the cord to earth ground. Thanks again.
 
You were correct Gozer5454. I eyed the ground cables around all the joystics and buttons and they looked good but upon further inspection I found one wire not touching. I resoldered and BAMO!!I was back in business. Thanks for the help.
 
Ok, between you guys and Bob Roberts I think I should be ok. I appreciate the help. Ive only done 5 cabinets in the past which didnt need the isolation transformers so Ive never had to work with them. I have a better understanding of the use. I should be able to tap into either side of the iso to get the 115 needed to run the lcd. I would then ground the green wire from the cord to earth ground. Thanks again.

Why do you need the ISO transformer for your LCD monitor? the ISO is really only for CRT monitors that require it.
 
I didnt need it. I had just taken out the crt that it was hooked up to but it was still run through my power supply so it was still active. I took it out and ran my lcd cable through the power supply.
 
You were correct Gozer5454. I eyed the ground cables around all the joystics and buttons and they looked good but upon further inspection I found one wire not touching. I resoldered and BAMO!!I was back in business. Thanks for the help.

Good times, noodle salad.
 
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