| Arcade Collecting > Restorations & repair |
| Atari Centipede Cocktail table game has no power |
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| bperkins01:
Your meter is a bit confusing (to me) - are the 007 and 008 really .007 and .008? Certainly testing against a good one will tell you for sure. You have diodes all over that machine to do some checking against. Hope that's it! Keep up the good work. added: Something killed them - be nice to know what. (Maybe the old big blue?) Buy a few extra diodes.. Just in case they pop. I'd check the resistance across the secondary winding (both orange lines on F2 and F3) with the fuses pulled. It should NOT show shorted.. not sure how many ohms you should have... but not shorted. While I was at it - I'd check for continuity from those same spots against all of the connections on the primary side of the transformer.. just in case. they should all show open based on the schematic. right? Transformer failure is very uncommon.. but not unheard of... |
| vapuser:
I'm not crazy about my ohm meter either. Sometimes It doesn't appear to be that accurate. I thought those shorts would have shown a .002 reading, instead of a 002 reading. But I'm pretty much convinced that those diodes are showing a short condition and should be replaced. Would you or Mike or Scott be able to upload a current full schematic of the power supply? The cocktail table schematic should show the two diode rectifier instead of the half wave rectifier. I feel any further testing of the brick will be more accurate with the correct schematic. Thanks. |
| bperkins01:
Pay no attention to the red arrows - I saw this on another thread - but this is the one you have.. |
| Mike A:
I just emailed you a copy too. |
| vapuser:
Thanks, both of you!! :cheers: |
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