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I have one of these babys just bought it off an guy the other day and it is making a buzzing noise. It does not appear that the{Buzzing} gets louder with volume inrease. It will continue about 15 seconds after you shut it down. How can I fix this puppy. All inputs are disconected while this happens. I really need to fix this unit. Any help will be a big help.
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Sounds like it needs power supply filter caps. How are your soldering skills?Originally posted by Ronmonster View Post -
I am fairly good at as I work on video monitors as a hobby. I have put in many cap kits in my time. I generaly use xircon replacement caps. I want to use a better grade of caps that will last awhile longer than xircon. Do you have any suggestions?Comment
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I don't think the brand they are using is particularly a problem. I'd use 105 degree caps instead of 85 degree caps though. Heat is the enemy of caps. If you like a different brand, use it, as long as the dimensions fit the space.
But before we worry about brands, are the caps working right? Are the DC rails up to voltage and clean? No point in replacing them if they are not the problem.
Video monitors as in arcade? Wells-Gardner, Electrohome, etc?
I service those things. Oddly enough all the caps I stock for those and the ones I stock for audio rarely cross over the line between industries.Education is what you're left with after you have forgotten what you have learned.Comment
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A few years after ...
Did you solve the problem ?
I have the same with a similar problem...
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