Atari Centipede Cocktail table game has no power

Arcade Collecting > Restorations & repair

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vapuser:
Mike, Like you said, I think while I'm waiting for parts to come in, I'll look at the monitor again. I believe that the 3 pin connector was supplying 126.6 VAC. The 6 pin monitor plug had no voltage at all. Does the connector supply voltage to the monitor or do the components on the monitor supply voltages to the plug? I did notice a fuse way up underneath the monitor. I'll try to remove it and test it for continuity. Do you think I should remove the whole monitor from the chassis or should I try testing from underneath? I'm not really sure what I'm looking for. Other than that fuse which visually looks good, :dunno I don't know. You mentioned that this monitor circuitry was totally separate from the rest of the boards. So then replacing the components on the ARII won't supply voltage to that 6 pin monitor plug? Just a thought. What are your suggestions?

vapuser:
That yellow lettering says "No power at all". Sorry about that.

Mike A:
The six pin connector provides the video signal from the PCB to the monitor. That is not a concern at this moment. the 3 pin plug supplies power to the monitor. When there is power there the CRT should do something. I would suggest looking up CRT repair and safety on youtube. You need to learn where the high voltage is hiding and how to properly deal with it. You need to learn the basics before you dive in.

bperkins01:
There is a 6 pin connector with thin wires.. that is your RGB connector. It has no power because of no +5V and isn't relevant at the moment.

there should be a 2 or 3 wire connector off the harness that is very similar is size to an everyday extension cord. It will have 120V - which we know works directly off the power brick (its not off the ARII)

There is a fuse on the CRT itself right where the power connects.. its likely a 3A - 250V fuse.
Focus on that power line into the CRT.. if it has power (and it does) then I'd pull the CRT to check the fuse.. I'm guessing you can't see anything while its in the cabinet.

bperkins01:

--- Quote from: Mike A on February 13, 2020, 12:37:34 pm ---The six pin connector provides the video signal from the PCB to the monitor. That is not a concern at this moment. the 3 pin plug supplies power to the monitor. When there is power there the CRT should do something. I would suggest looking up CRT repair and safety on youtube. You need to learn where the high voltage is hiding and how to properly deal with it. You need to learn the basics before you dive in.

--- End quote ---
Great minds :)

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