new project: MONACO GP arcade cockpit

[vintagegamer]

I happily acquired this last week.  It powers up but won't register a credit.  I have tried some work in the coin box but no luck yet.  Hoping to tinker with it some more tonight.

Anyone here own one of these?  I also need the back smoked plexi if anyone has one lying around.

Thanks!

VG

[knohbody]

Don't own one, but here's a wiring diagram.
http://tamdb.net/index.php?page=ManualDetail&PHPSESSID=f803213c5d4d6e84e33e27b359a92493&id=1208

Make sure the wires from the coin switch go all the way back to the board. Check them with a continuity tester when it's not on.
Does the service button work? It usually adds a credit if pressed while in game play mode.

[opt2not]

More pics IMO. 

[vintagegamer]

More pics IMO. 

I will definitely provide some pics soon. 

I have tried both service buttons and nothing happens.  I found last night that someone made a home-grown credit switch, but I can't get the game to coin up using it.  I found the NC and NO wiring (red and blue wires), and when I wired them up to a switch with a ground, hitting the lever shut the whole game down.  I ended up blowing one of the fuses on the power supply.  I know the NC and NO wires are correct, so it looks like I need to find a better ground.  So close!!!

[njay]

Eeem NC is closed NO is open

Only use the NO for red wire then usually blue for ground bottom crimp connector usually

[vintagegamer]

Eeem NC is closed NO is open

Only use the NO for red wire then usually blue for ground bottom crimp connector usually

I tried this and it did not work.  When I flipped the lever on the switch, the monitor picture "bounced" but a game did not start. 

[njay]

can you run the wires to a single microswitch a new one and click it

[vintagegamer]

can you run the wires to a single microswitch a new one and click it

I really appreciate the help but I'm not sure why you're requesting that I get another switch- I tested the one I have with a DMM before using it and the lever was opening and closing the circuit like it should.  Do you still think there's a chance of it being faulty even with that?

[vintagegamer]

So it looks like it may be a problem on the board of the game     With the help of another game geek we tried jumpering the wires for the coin switch at the edge connector and nothing happened.

Guess I'll need to learn PCB repair 

[knohbody]

That sucks vintagegamer. I just found your thread on KLOV (I think, just closed the window) Noticed you said the PCB was covered in black dust. If you're gonna be attempting to repair the pcb, best place to start is to clean it up with some compressed air, isopropyl alcohol, and q-tips. Go slowly, get everything clean, and examine the board while you're doing this, front and back. You're looking for any broken traces, any areas where it looks burnt, cold solder joints, roms that have popped partially out of socket, any legs on the chips that are bent up.
Are any of the chips on the board socketed? If so, take them out (gently) and clean the inside and outside of the legs with isopropyl or gently scrape them with a screwdriver for the tough dirt, then put them back in (again, gently, make sure the legs are all going in, and make sure the chip is in the socket the correct way).
I would test at that point, then go on to trace the coin up circuit on the board. From a brief look at the schematic in the owner's manual ( http://www.tamdb.net/index.php?page=ManualDetail&id=3047 ) it looks like the coin and test circuit is on page 26.
You may get lucky and find that it's something simple.

[JustMichael]

 

[Shortbus]

Yah, what he said (above) 

[vintagegamer]

LOL ok ok, sorry for the delay on the pics.  I've had alot going on since I got the game so I will definitely post some as soon as possible.

[vintagegamer]

I swear I will get pics of this this week!  I keep forgetting!   

[opt2not]

I swear I will get pics of this this week!  I keep forgetting!   

LOL, sure sure Dave.

[JustMichael]

I don't mean to rush you but any pics yet?

[vintagegamer]

I don't mean to rush you but any pics yet?

Whoops!  Sorry about that.

Check this out and let me know if you can't see the images:

http://forum.arcadecontrols.com/index.php?topic=111464.0