How to take apart a home tower speaker?

[JH74]

New member here,was hoping you guys could help me out.I have a set of Eosone tower speakers which i've enjoyed for quite a while now.But one of the front dome tweeters is not working and i assumed its blown.I found a new one on ebay and alas it didnt work either.The wires that go to the tweeter are going down a little hole towards the bottom of the speaker,but they don't appear to be loose.Sure is frustrating.Is there maybe a fuse or a crossover that i could fix myself?Again thanks for any help it is much appreciated.Thanks, Jeff.

[3-LockBox]

without knowing the speaker at all...

Is there a circuit breaker or accessible fuse somewhere on the back? Some speaker manufacturors do put fuses on the crossover board, outside the speaker, but many do not. Unless the connector panel in the back is rather large, chances are that the crossover board is seperate; you will have to remove a woofer to access the crossover board. From there, you'll have to be able to tell a fuse from a capacitor. If there are no fuses, then some more indepth troubleshooting is required, and unless you have a some simple electronic knowledge and soldering skills, you'll be lost, because this isn't anything that anyone will be able to step you through.

If you can provide front to back pics, that would be the first place to start.

[JH74]

Originally posted by 3-LockBox
without knowing the speaker at all...

Is there a circuit breaker or accessible fuse somewhere on the back? Some speaker manufacturors do put fuses on the crossover board, outside the speaker, but many do not. Unless the connector panel in the back is rather large, chances are that the crossover board is seperate; you will have to remove a woofer to access the crossover board. From there, you'll have to be able to tell a fuse from a capacitor. If there are no fuses, then some more indepth troubleshooting is required, and unless you have a some simple electronic knowledge and soldering skills, you'll be lost, because this isn't anything that anyone will be able to step you through.

If you can provide front to back pics, that would be the first place to start.

I never thought of taking pics.,maybe i can do that.These are the really big and heavy tower speakers,that have the powered subs,so there are amps on the back.Maybe i'll try to remove the subs and see what i can see.Thanks for the reply.

[dublin78]

I am sorry to state the obvious as you may kick yourself. Have you tried swapping the tweeters between the speakers to see if it is actually the tweeter that is broken? Make sure you remember or note which speaker cabinet had the working tweeter originally.

As your replacement tweeter did not work, I suspect that you will find that all your tweeters are in good order, in which case I would locate the crossover on the non-functioning cabinet and check for loose connections between the components and the circuit board. Often capacitors can work their way loose. These problemss are easy to correct with a soldering iron.

Good luck, and let us know how you get on.

[JH74]

It appears that there is no accesible circuit breaker or fuse on the back,unfortunately.

[dublin78]

P.S. Don't remove your sub amp until you have tried my suggestion.
I assume your loudspeakers are powered by a normal amplifier/reciever/hifi as well as the sub plate amp. In this case your tweeter problem is very unlikely to be related to the active subs. Look for an issue with the passive crossover.

[JH74]

Originally posted by dublin78
I am sorry to state the obvious as you may kick yourself. Have you tried swapping the tweeters between the speakers to see if it is actually the tweeter that is broken? Make sure you remember or note which speaker cabinet had the working tweeter originally.

As your replacement tweeter did not work, I suspect that you will find that all your tweeters are in good order, in which case I would locate the crossover on the non-functioning cabinet and check for loose connections between the components and the circuit board. Often capacitors can work their way loose. These problemss are easy to correct with a soldering iron.

Good luck, and let us know how you get on.

Hi Dublin,yes i did try swapping the tweeters and the brand new one worked fine on the the good speaker,but not on the bad one.Its just weird to me that every other speaker component is working fine even the rear side tweeter,but i am a newbie to how a speaker works so that maybe why.Anyway,i do want to to try and locate the crossover but i'm not sure the best way to go about it.Should i remove the subs from the front since they are on the bottom of the speaker?It seems like i would be able to get to the crossover that way.Lmk what you think.Thanks again.

[jaudio]

Originally posted by JH74


Anyway,i do want to to try and locate the crossover but i'm not sure the best way to go about it.Should i remove the subs from the front since they are on the bottom of the speaker?It seems like i would be able to get to the crossover that way.Lmk what you think.Thanks again.

If one of the subwoofers are directly behind the input terminals, that’s where I would start. If the crossover not there, at least you can follow the wires

[JH74]

I've pretty much taken the speaker apart piece by piece and couldnt find any loose connections.It looks like everything is still soldered on the crossover also.I don't think there are any fuses to be replaced either.

[jaudio]

JH74

Do you have a multimeter?

The connections could be bad(connector to wire) or the wires could be bad. If you dont have a multimeter ,try some new wire between the the crossover and tweeter.

Pictures of the crossover would be helpful.