Go Figure, My WG6100 Lasted 3 Days!!!

Pinball Wizard

Well-known member
Joined
Sep 20, 2010
Messages
3,084
Reaction score
407
Location
Baltimore, Maryland
Well I recently got myself a Tempest, and adjusted out the monitor all sweet after fixing 2 blown fuses. Lasted me 3 days, and all of the sudden during play the monitor did the attached image. A few seconds after the image displays the spot killer kicks in. What's my issue?
 

Attachments

  • 2011-08-12 20.35.01.jpg
    2011-08-12 20.35.01.jpg
    90.9 KB · Views: 84
Did you rebuild the monitor with a full rebuild kit, new frame-mount transistors, and a low-voltage upgrade? Or did you just replace the fuses?

It's also possible the problem is with the game board...
 
To be honest, I just replaced the fuses, they were missing when I bought the game, and the monitor looked great and worked fine at first, so I didn't see fit to rebuild the monitor. Realistically, the monitor should probably get a rebuild sooner or later but as good as it looked and function while is was working, I felt like it wasn't ready for a full rebuild.

I can't confirm that the board is not the issue, but I'm pretty sure that it is good to go.
 
Unfortunately, Tempest stresses the 6100 more than any other game, so it's not surprising that an un-rebuilt 6100 died quickly in this game.

Although your issue look similar to an X/Y or vector generator issue on the game board, I did once have a 6100 chassis that looked like this. Unfortunately, the recommended fix didn't work, and it's currently on the "someday I'll get to it" shelf...
 
If you have access to a oscilloscope you can use the X and Y outputs of your board for the channel one and two with the scope adjusted to vector and see the game. It will be messy but if you turn the brightness down you can the basic shapes. I played my tempest set up like this for a long time before I learned hope to repair 6100s.
 
I am betting it is the circuit board. Check the X and Y outs using the AC setting on your voltmeter. Put one probe on the X-out loop and the other on the metal grid. You should have about a 5 volt or so indication in
AC volts. Do the same thing with the Y-loop. Report back
 
Took me forever to get back around to this, but I finally did! My Y loop puts out around 3.6 volts ac, the X loops puts out like 40 mV ac. So I'm going to say its my board that is borked. What am I looking to replace?
 
Umm that could be either the op-amp TL082, the DAC AM6012 or DAC312 depending on which board you have installed or it could be something else down the line. You might contact Talon2000 and see if he will take on your board for repairs. I doubt you have any DACs on hand. These are getting a little tough to source. You could get the op amps from radio shack along with a socket and try that but DON'T DORK UP THE BOARD with lousy soldering. If you don't know what you are doing then don't try to fix it. It will cost you more and some techs won't touch it if you dorked it up.

Good luck and sorry for the shouting but you needed to know.
 
Back
Top Bottom