Exchange tips and tricks for the Akai MPC4000
By gdogpwns Thu Sep 15, 2022 8:36 pm
I recently bought an LED backlit screen from SNAFU on Reverb who has been incredibly unhelpful. It was supposed to come with instructions but none were sent to me and they stopped responding to my messages.

Does anyone have the instructions sheet? They said this would be a “plug and play” solution, but there seems to be a ground wire soldered to the original screen (I can solder just fine, I just don’t appreciate being lied to by sellers.) It also has a potentiometer and I’m not sure what the deal is with that?

I don’t want to accidentally wreck my display or MPC so I’m coming to you wonderful people for help.
User avatar
By Sense-A Mon Sep 26, 2022 11:09 am
Open up the display housing and you will see the potentiometer for contrast is on a separate board.

I don't recall a ground wire being soldered to original screen. There is a ground wire that screws on to the back of the display board. Attaches with a screw.

I have successfully replaced two LCD screens in MPC 4000. One I used display from a medical device. The other i salvaged from a parted-out mpc 4000.
By pink velvet Fri Aug 30, 2024 2:56 pm
gdogpwns wrote:I recently bought an LED backlit screen from SNAFU on Reverb who has been incredibly unhelpful. It was supposed to come with instructions but none were sent to me and they stopped responding to my messages.

Does anyone have the instructions sheet? They said this would be a “plug and play” solution, but there seems to be a ground wire soldered to the original screen (I can solder just fine, I just don’t appreciate being lied to by sellers.) It also has a potentiometer and I’m not sure what the deal is with that?

I don’t want to accidentally wreck my display or MPC so I’m coming to you wonderful people for help.


Hi, I was wondering if there was a happy ending regarding this particular screen from SNAFU? I'mthinking about buying one but sadly can't seem to get a response to my questions. Did you manage to install it in the end, was it straightforward? and what was the deal with extra potentiometer ? any help appreciated! thanks !
User avatar
By Telefunky Fri Aug 30, 2024 7:53 pm
In case your display is still ok, but lacks illumination (or has light flaws), here‘s a short intro to replace the original CCF-tube by LEDs.
viewtopic.php?f=2&t=216294#p1868865

It‘s (ok, I confess...) crude, but less than 5 bucks :mrgreen:
Disadvantage: it needs a switch outside the MPC to turn on the light, because all these decoration LED chains have an internal timer.

Not mentioned: you want the most tiny version of both LEDs and wires, and the wire should be bendable and stay in position after manipulation.
Be careful when removing the tube, it‘s fragile and content is toxic.
You may as well use this strategy of placing LEDs inside the white tube housing, but do a proper driving circuit (there should be countless DIY suggestions).