Hi guys! I own a Behringer eurolive b1500d-pro sub that I used to use for dj'ing gigs in college. About 18-24 months back I started having troubles where it would only play music through it 20-30% of the time. It was a type of issue where if I could get it to start playing music, it would be good for the entire night. However, getting it to start was a pain in the ass and I could not develop a reliable trick - for example I would play around with it for an hour in my apartment, get it to start playing music, and not lose signal until I turned it off. Hooray! However, I would then take it to a frat house or some such and completely fail to get it to play music. For clarification, it turns on every time and I get the blue power signal - it's the playing of actual music that is spotty. Ok that's the background.
Now, about 8-12 months ago I tore into the sub, pulled out the motherboard, and starting playing around with it with multimeter I borrowed from my electronics lab. Couldn't figure it out, seemed complex, and I know that I barely troubleshooted - it was just that I didn't know where to begin. Now, I've dug back into the thing and I'm ready to take another crack at it after pulling it apart this morning and examining it for an hour or two.
It is my belief that a connection was shorted somewhere and that this connection is able to work some of the time, but not very often. This is why I was able to get sound to come out of it once in a great while. I recognize that this assumption has little basis in fact and more based on personal experiences with the device closing in on 2 years ago, but it's all I really know to work with.
By posting on here I hope not to find the answer to all my problems in a single post - but learn where to direct my attention, what to start looking at closer, what resources I may need to purchase, and overall the level of difficulty of what I'm dealing with. At the end of the day I could probably take this to a repair shop and get it fixed for $100-250, but, for many reasons, I would like to avoid that. I've always had a mild curiosity surrounding electronics and have an Amazon wish list with half a dozen things for ~$75 that would enable me to start working directly on breadboards and motherboards - I just need to press the buy button when I know I can use it productively for a project (like this one!).
Anywho, hope I'm posting this in the right place. I've got part numbers, pictures, several (possibly irrelevant, but maybe not) observations - but nothing of substance to enable me to further troubleshoot/investigate.
Cheers,
Ian
Now, about 8-12 months ago I tore into the sub, pulled out the motherboard, and starting playing around with it with multimeter I borrowed from my electronics lab. Couldn't figure it out, seemed complex, and I know that I barely troubleshooted - it was just that I didn't know where to begin. Now, I've dug back into the thing and I'm ready to take another crack at it after pulling it apart this morning and examining it for an hour or two.
It is my belief that a connection was shorted somewhere and that this connection is able to work some of the time, but not very often. This is why I was able to get sound to come out of it once in a great while. I recognize that this assumption has little basis in fact and more based on personal experiences with the device closing in on 2 years ago, but it's all I really know to work with.
By posting on here I hope not to find the answer to all my problems in a single post - but learn where to direct my attention, what to start looking at closer, what resources I may need to purchase, and overall the level of difficulty of what I'm dealing with. At the end of the day I could probably take this to a repair shop and get it fixed for $100-250, but, for many reasons, I would like to avoid that. I've always had a mild curiosity surrounding electronics and have an Amazon wish list with half a dozen things for ~$75 that would enable me to start working directly on breadboards and motherboards - I just need to press the buy button when I know I can use it productively for a project (like this one!).
Anywho, hope I'm posting this in the right place. I've got part numbers, pictures, several (possibly irrelevant, but maybe not) observations - but nothing of substance to enable me to further troubleshoot/investigate.
Cheers,
Ian