Atari Centipede Cocktail table game has no power

Arcade Collecting > Restorations & repair

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vapuser:
bperkins01, I like that idea, but the connector at pin 15 is blank. Is your J5 connector not the same way? So there really is no 60 volts outputted to the circuit across pin 13 - 15 from what I can tell. I never checked the center tap for 30 volts across pin 13 - 14. I just figured that the last 60 volt winding wasn't being used. How about if I use that same positioned jumper, which should give me 90 volts across pins 10 - 14 and 60 volts across 10 - 12. I can check the two additional center taps as well for 30 volts. The incandescent bulb won't be as bright positioned across 10,14 but will still be providing a load. if you think that's a viable solution, I can do all that tonight when I get home from work.

bperkins01:

--- Quote from: vapuser on January 31, 2020, 07:19:34 am ---bperkins01, I like that idea, but the connector at pin 15 is blank. Is your J5 connector not the same way? So there really is no 60 volts outputted to the circuit across pin 13 - 15 from what I can tell. I never checked the center tap for 30 volts across pin 13 - 14. I just figured that the last 60 volt winding wasn't being used. How about if I use that same positioned jumper, which should give me 90 volts across pins 10 - 14 and 60 volts across 10 - 12. I can check the two additional center taps as well for 30 volts. The incandescent bulb won't be as bright positioned across 10,14 but will still be providing a load. if you think that's a viable solution, I can do all that tonight when I get home from work.

--- End quote ---

Unless your Power Brick is different on the cocktail vs. the upright.. you should have a pin on 15. You need the 2 x 60v circuits to get you 120v for the monitor.
Maybe the pin pushed in? Take the power brick out and check from the back side.. The links the the schematics and my prior link shows how to look at this..
HTH

vapuser:
bperkins01, As you mentioned, the power brick may be wired differently on a Cocktail table model. Maybe someone can confirm that for us. It sure seems that way. Over the weekend, I removed the brick from the game console and recalculated all the AC voltages using a 100w bulb as a load. I also added additional pictures to see the front and back view of the J5 connector to show the missing wires and pins. I also uploaded additional pics to show the front and back view of the J5 plug from the Harness inside the console. I'll also include an updated view of my notes to show the current voltages that were displayed. Just as a recap on the voltages I took were as follows: 1,5 2,5 and 3,5 were 10.4 VDC. The following AC voltages were read using a 100 w light bulb load: 6,7 35.6 VAC, 8,9 6.2 VAC, 10,12 102.5 (Too high, should be 60), 10,14 123,8 VAC. See pics for a detailed view of the connectors.

Mike A:
Stop chasing your tail verifying voltages.

Measure where you have power. Work your way forward until you don't have power. That is where your problem will be.

It is odd that you don't have any power at all. It almost has to be a fuse.

Mike A:
You can also work the other way. You know where the power is supposed to end up. Start there and work backwards.

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