1975 RCA XL100 model CU 680 W trips reset button when turned on
Red reset button trips when power knob is pulled out. Reset and does it again. Where should I begin looking? Interested in fixing up and using with Atari games.
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Remove the power supply diode board, reset the breaker and see if it holds and the channel light comes on. If it does, check all nine diodes on the little board. If diodes all check good then there's a short on one of the B+ supplies. Large filter cans, vertical or horizontal SCR issues were common. Can remove the SCR mounting screws to check them without actually having to pull them out of their sockets.
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Those are standard recovery diodes, so any typical rectifier like the ECG 125 will work fine. John |
Great, ty🙂
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Restoration begun on this set. I've managed to get the entire outside done. Now if I can ever get inside and begin with repairs.
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Is that the model with those miserable little sliders behind the door?
John |
Cabinet looks great.
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Thank you. Yeah it has the 4:sliders for contrast, etc.
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I used to buy them 50 at a shot back in the day. John |
These are still intact and move without a problem. I'll still watch out for them. Can't wait to get this up and running. I plan on using Atari games on it.
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Very nice set.
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If power supply checks ok don't overlook the trace/retrace SCRs
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Ok👌
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