Post by motoman202 on Jun 16, 2024 19:17:09 GMT
I've been trying to chase down an issue on my rock ola 480. I recapped everything 2 years ago when I first bought it. But at that time I did not replace the 2 main filter caps on the amp. A couple months ago those caps failed and I had a buzz whenever I turned the juke on. Replaced those with nichicon caps and they lasted until about a week ago and both caps had literally come apart and the same buzz was back. So I replaced them with a different brand with a higher voltage rating. Buzz is gone now but as soon as the needle touches the record I get the speaker overload light on. Thought maybe those caps were faulting or something strange so I replaced them again.....no change. I have tested the bridge rectifier and it is good.
If I unplug the 2 big square connectors (labeled left and right) coming from behind the driver boards one at a time I noticed that the light stays out with the left unplugged but I only get the right channel highs, no sub.
I have tested all speakers and speaker wiring everything meters out as it should with no shorts.
Any ideas would be greatly appreciated.
If I unplug the 2 big square connectors (labeled left and right) coming from behind the driver boards one at a time I noticed that the light stays out with the left unplugged but I only get the right channel highs, no sub.
I have tested all speakers and speaker wiring everything meters out as it should with no shorts.
Any ideas would be greatly appreciated.
