| Arcade Collecting > Restorations & repair |
| Atari Centipede Cocktail table game has no power |
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| bperkins01:
I did the same sort of testing here: http://forum.arcadecontrols.com/index.php/topic,161506.msg1703158.html#msg1703158 You should use the right size fuse. If you use a 10A fuse and it calls for a 7A fuse.. then the extra 3A the *bigger* fuse allows is the extra 3A to fry your boards (or whatever that particular fuse uses. The voltage is unregulated - If you want to know much its really putting out - it has to be connected to a load. I've used 100w lamps as a load to test and check voltages that way.. Big swings are not uncommon. |
| Mike A:
Now keep working your way forward until you have no power. |
| PL1:
--- Quote from: vapuser on January 30, 2020, 06:41:30 am ---I found two bad fuses and replaced them. the original fuses were 7 amp, 250 volt. The closest I could find were 10amp 250 volt. Do you think that the extra 3 amps will put too much strain on the circuit? --- End quote --- Pull that 10A before you fry something. :whap If something is drawing enough current to blow the 7A fuse, over-amping the replacement protects the inexpensive fuse by possibly sacrificing the expensive electronics the fuse was supposed to protect. >:D When substituting fuses, it is safe to over-voltage so there's less chance of arcing or under-amp so the fuse blows with less current draw or faster blow-time. NEVER the other way. The correct fuse values are in the diagram/parts breakdown on pages 47-48 of the manual here. Scott |
| Mike A:
It is not difficult to source the correct fuses. There is no point in throwing in the wrong fuse and praying something won't fry. |
| jennifer:
I would have expected something to pop on at this point. Those two blown fuses were probibally trying to point out your trouble, My guess is one was for the chassis, and more specifically to a bad flyback (given its age) normally if you look at it you will a burnt looking crack in it if it is bad, leak nasty goo, or just be dead, in a dark room like a Tesla coil it may also shoot voltage, In any case approach this with extreme caution (and +1 on changing that fuse back to a 7amp)....Power to the boards test would also be on my list, making sure your getting DC out of that regulator where applicable |
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