M Audio BX5A full disassembly and Capacitor repair (2020)
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- Опубліковано 25 сер 2024
- Hey guys! Today I’ll be fixing my studio monitor. It recently started buzzing so let me speak no more and get right into the video!
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small tip for de soldering. it's actually easier to add a bit of fresh solder while heating the component to remove it. then use the solder sucker to remove the solder out the holes AFTER the cap has been removed. cheers for keeping good gear out the land fill!
Thanks for the tip! It’s always a tricky thing!
I would not tried to fix this problem without your video. Very helpful. Thank you.
No problem I’m glad I could help!
Thank you very much for your video, it was very helpful
This video is well done. I appreciate that you demonstrate what sound the defective speaker is making when you power it on and off. My left BX5a went out and it makes the exact same sounds that yours does (did). I do suspect that it's a capacitor problem. Thanks for showing the capacitor type and the link to purchase replacements. I appreciate that you point out the places where you had trouble accessing screws, the glue strips on the metal plate and the tie you had to clip to access the back of the board. I wouldn't have known to do that. Good to know that the capacitors are glued to the board and thanks for the reminder to check the polarity of the pins.
I suspect that if I check with an electronics shop the bench charge would be as much as a new speaker, so I'll probably try this fix. Thanks for mapping out the process!
No problem I’m glad I can help and that’s exactly the intention!!
I have had one of my BX5 busted for a couple years now finally getting around to fixing it. Thanks for showing this. Some advice on soldering, keep using the solder sucker more than you did, you can almost get all of it off that way. When installing, it helps to “tin” the leads with just a thin layer of solder before you insert them and then they solder smoothly.
Hey thanks for the help! I hope you can can use the video as a guide on some methods of getting around the speakers!
Dude, thank you. This happened to one of my BX5as just the other day and I didn't know what was wrong with it. Now I know how to fix it! Thanks again.
No problem!!
One of my BX5a just crap on me last night, I forgot to turn them off. It makes a hell of noise as you powering it, not good. I will do the job on it on both for preventive reasons. I hope the caps didn't crap all over the board. Thanks for showing what to expect and the link for the cap, nice video.
Thankkk youuu. I bought a set of these speakers for like 40 bucks because one of them was buzzing, figured it might have been a wire at first but then looked into it and I'm pretty techy so I said I'd give it a shot. They sound very good and then my first pair of monitor speakers that have been able to get, especially when paired with the subwoofer you can't go wrong. In my opinion older technology sometimes dies out but they just don't make them the same qualitiy and power nowadays because it's easier to make them cheap and less upgraded for $$$$
Nice. I’m getting mine for 35€ now :) also with the buzzing sound. That’s why they’re declared as defect. But I’m an electrician and I think I can fix that too :)
U did a great job brothers, so when a sound buzz it's best to check the sound ic and capacitor
Thank you!
Same problem I encountered with the glue, I'll try what you did, thanks!
I hope it works for you! Good luck!
Hi, Ive replaced all thw caps on bith of the speakers, but the other seems to still have a loud "thud" sound when turned on but smooth when turned off, the other one was quiet as new, what could be the problem? Could be the positive negative side of the caps? Coz I didnt check when I replaced them, thanks
I would check that just to make sure that could be your issue
You mentioned making sure the polarity is correct but you don’t say which is which. How do we know which pin goes where?
Fixed mine today with a pair of 3300uf 50V Caps.
That’ll work! Although they can have an drastic change on the sound.
Excellent video thanks!
LOL at the random visine eye drops!
It was a surprise to me! I was like waaah? I guess that what you get when you get used gear xD
Thanks for the video. It is the best I've seen on the subject. I have one minor problem, though. As you mention in the commentary the two caps are polarized, each cap has a plus and a minus. The positive lead is the longer of the two but I can't tell which is which on the PC board. Could let me know how to tell, please?
If you have the same one as mine you can see the orientation @5:38.
gracias disculpa que falla arrojaba el altavoz
Bro que pasara que quema los fusibles y no enciende tengo los mismos bx5a. Gracias.
Seems like this is a common repair on these, mine are doing it now. Man, get a heated solder sucker it will make your desoldering a lot easier and cleaner. It will keep you from scratching up the bored. Watch that iron on you left hand, kinda close to the connected wires😳.
Thank you I appreciate your help! My setup since has been updated!
Great video, I've got the BX5 D2's, great speakers... one has started humming, so seems like the same Cap issue based on my research. I was wondering how to "cut" the glue that holds the Cap to the board. Great idea to cut the cover off the Cap! That's what I was looking for, good ideas! Thanks!
No problem glad I could help!!
I have a BX5 D2 which switches on but makes no sound - how did you fix yours, and how did you get the front speaker surround off in order to disconnect?
I followed the instruction in the video... very through!@@MrMargaretScratcher
Mine has a plastic cover on the front that I was able to carefully pry off to expose the screws...@@MrMargaretScratcher
@@GenoG Hmmm, I tried at the bottom with a thin screwdriver but was only crushing the wood. Maybe I'll give it a go with a wider blade that will put less pressure on the wood. Cheers!
HI. are those capacitors part of the power supply ?
i have different problem then yours, my BX5a not turning on at all, not even the blue light in front. it since few years ,your video remind me about it ))) there was a burnt smell and i think a pop sound, when it stopped working. checked and replaced the fuse.(i think the fuse was burnt then' i don't remember, but anyway the new/other fuse is ok and not burnt when turning the switch to on. but the speaker is not turning on anyway.
Hi, what should I look for if one is muddier than the other? I disconnected the amp and the tweeter reads 5.6 ish ohms, and the woofer reads 4 ohms. The capacitors are not bulged.
👏👏👏👏
Hi, i have two bx5 d2, and in one of them, the woofer stopped working. The sound comes only from the tweeter. What could it be ? Any suggestions ?
In my video you can see me disconnecting the woofer I would check to see if it somehow got disconnected. If that doesn’t work you may want to do this repair. If you don’t see anything abnormal then I’d suggest getting a new speaker they are cheap enough to replace if need be.
Hi bro, I have a crakling/cliping noise in my monitor, let me check the capacitors (I have M Audio BX8a) Thanks for your video!
Hey I hope this video helps!
Where is the link bro for the parts
Hi, how can I find part number for the tweeter? I need to replace
Man I just searched around for a while and I could not find anything!
Hey, do you have any idea on how to fix my BX8's? I replaced on of the capacitators a few months ago and a week ago it just went quiet. I have checked the capacitators and they read good voltage. The signal flows from the capacitators as they should. I do not however get any sound, and only about 0.4v out of the speaker connectors on the pcb. Think it could be something else? Like a faulty opamp?
Any help is greatly appreciated
You could re check your solder connections and look for anything out of the ordinary. circuit fault analysis is difficult without seeing the speaker. I’d take it in to a local tech and let them look it over. if it’s not a simple aha fix. I’d shoot for a new one. Repair cost would be more expensive than a new one. Best of luck!
@@VelocityRecordingStudio Thanks! I've already checked the solder and tried my best tracing the signal. No problem with my soldering. This time. I'll have to hand it in then. OR buy a scope and follow the signal further.
okay i definately have a capacitor blown
Think mine has this, but it was fine yesterday. Is there anything in particular that causes this?
just cheap parts on maudio behalf.
@@VelocityRecordingStudio Well that's a shame. Thank you for the reply and the video. Think I'm going tot be needing it soon.
Where is the link
Witch one are you looking for?
Hi, How do the monitors sound connected to the pc without the interfase?
Hey awesome question! I will attach the link below to the manual, although I would not recommend that option due to the fact you have no control it could have a impedance imbalance so it will sound close to the same depending on the output impedance of your compu
thanks for your response. i m considering buying bx5 3 for listening to music but I dont wanna use an interfase. just connect the speakers to a technics cd player or tablet.
c3.zzounds.com/media/071220_BX5aDlx_UG_EN01-5d7a6da446ea661e5f51121614a69d23.pdf
Will Those Capacitors Work For bx8 ?
Hey man! Sorry for the late reply unfortunately I don’t have the 8 so I have no clue if it will or not
can you help me fix the volume knob
it wont make sound
How do you know it’s the volume knob? I would do some research on diagnosing the issue. If you are that far into problems with it I would get a new speaker.
Hey I have a pair of BX8as sitting in my garage (found them about a year back in an alley). Is an audio interface like the audient evo 4, a pair of TRS or XLR cables and pc psu cables all I need to use this with my computer?
Yupp and you will be good to go!
@@VelocityRecordingStudio Appreciate your help. Almost certain the tutorial will come in handy now or down the road
No problem!!
Hi, please answer my question, I have a pair of bx5 d3, and after a little bit of time, beetwen 30-45 minutes of use, they get hot from the back, is that normal?
Yup sure is. If it gets hot enough to burn you then there’s a bigger issue. But most power amps get hot. totally normal.
@@VelocityRecordingStudio thank you for your answer sir 🙏
Sounds like a Ground loop to me.
Good point although grounding issues won’t cause my electronics to behave abnormally