Re: Repairing Alesis M1 Active mk2 Monitor Speakers

C1 & 2 were not visibly damaged but I saw a recommendation to change them in a video, so I ordered the parts.

No multimeter. Shall look into getting one.

Fuses weren't actually blown, though one was questionable - but one's fuse clips had definitely broken, and the fuse . Seems as though someone has actually opened it up before me, as there were a couple of screws missing too!

Would I need a multimeter to check Q1? If it's turned into a "wire" that sounds like quite a physical...

Re: Repairing Alesis M1 Active mk2 Monitor Speakers

Ahh, must have missed that. As I say, I have extremely minimal knowledge on this subject... only some patience! So some of the things I've read I haven't understood.

So currently I'm planning on replacing, and have ordered parts for:
C1 & C2
C8
C35
The two big guys
The fuses
The 4 diodes

I'm not confident I've got the correct parts though. I made sure that all the important stats such as V, A, temp, etc are the same, but my C8 and C35 replacements are definitely...

Re: Repairing Alesis M1 Active mk2 Monitor Speakers

Edit to above:

C8 and C14 have swapped places, but I noticed that there *should* only be one C14. C11 is still in the normal place (so on my board, between U1 and C8).

Re: New Members - please post your introductions here

Hi, I'm a musician, video artist, and promoter based in Manchester.

Mainly here to fix a set of Alesis M1 Mk2 speakers. No idea what I'm doing!

=D

Re: Repairing Alesis M1 Active mk2 Monitor Speakers

Hi all!

Inherited a set of these speakers from an old housemate who ran away to avoid paying rent. I'm a musician and haven't looked at a circuit board since A Level Physics ten years ago.
They worked for a while, but then one dropped out, and then the other. Now neither of them turn on at all (no light, no sound).

Figured it's finally time to get round to repairing them, but the main thing I've noticed is that the common issue (C8 proximity to resistors) is not possible on this board.
...