Inverter Questions

Hi Bernard, thank you for the kind words

The K2000 is a beautiful machine, it has to be the deepest sampler/synthesizer ever. That's a great choice for a first synth. I haven't owned mine for as long as you, I still have a lot to learn, but it's easier now that I can read the display. I sent you a private message with the information you asked about.

Speak soon,

Matt

Hello,
I got my hands on a s950 converter this week. I'll try to do this mod. Is it possible to get the pictures again ?

Thanks a lot in advance !

Best,
Nikolas

RootsRenegade wrote:AKAI S1100 INVERTER MOD: SUCCESS

My S1100 inverter was very loud (hight pitch buzzing noise) so here's what i did to solve the problem. Perhaps it could help or inspire someone else so i took pictures during the whole project. As safety precautions, don't forget to unplug the machine BEFORE you work in/on it.

1) Troubleshoot: I made sure there was no noise coming out of the audio (this would indicate a problem coming from the capacitor on the inverter circuit). Tested with headphones, zero noise.

2) I bought from MisterWhite: a brand new backlight for my S1100 (can sometimes help with the inverter noise but in my case, it didn't) and i also bought a brand new display for my S950. With those displays, you don't need the inverter anymore so once installed, i was left with a spare S950 inverter (wich was 110% quiet).

3) Here's the S1100 inverter on its circuit board:









Here's the S950 inverter on its circuit board:











4) Here's what you'll need to make this mod a success:

a) Soldering station/iron
b) S950 inverter
c) S1100 circuit board
d) 3 x 3'' wires (i used solid core)
e) Heatshrink material
f) Solder
g) Desoldering pump
e) Love and respect for old samplers




5) I started by soldering the 3 wires to the 3 feets of the S950 inverter.



6) I then heated the heatshink material in place.



7) Then i soldered the other end of the 3 wires to the S1100 circuit board.


8 ) To help me out, MisterWhite provided me with this nice drawing:


9) Now all that was left to do was to put the circuit board + inverter back into my S1100 using sticky velcro (so it can be removed if needed). I added electrical tape on the inverter connectors for extra safety.


10) Close the chassis, put the screws back on, plug the sampler and your all done, success ! Zero noise.



Special thanks to you Matt for your top quality products and your top-notch after market service.

Hi, my pictures were removed when I closed the blogger account where they were originally posted on. I still have all the pictures and will upload them on my own server as soon as possible.

My blog is finally back online. I posted all the pictures and details on it:

Akai S1100 Inverter Mod

Thank you!