MPC gone crazy-each pad triggers all the others

Hey man i'm having a similar prob!!!
but only my left pads trigger the right pads!
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***PAD 1 will trigger PAD 4 randomly***
***PAD 5 will trigger PAD 8 randomly***
***PAD 9 will trigger PAD 12 randomly***
***PAD 13 will trigger PAD 16 randomly***
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I wrote an email to AKAI so i hope get a reply, the prob is my warranty finished 2 months ago!
I've tried everything, reinstalling OS's and resets and re alignment! NOTHING!
hope there is a solution!

AKAI REPLIED TO MY EMAIL AND SAID F$%K ALL!
MAN THEY ARE F$%KHEADS!!!!!
looks like it's upto me to find a solution!
Peace!

please let me know if you find something

Same problem here. Did the O.S update and the "hard reset" but it didn't help. The problem went away, after I pushed all the pads at the same time . Luckily my warranty still lasts 10 months if the problem reapears.

I had the problem again a while back when i wanted to try the new akai os 1.23 ( i'm using the jj os) , so i quickly reinstalled the jj os , the problem wasn't gone but i jammed on the pads for a while and turned it of and the next day it was gone.
If i was the only one with the prob i would start thinking i'm losing my mind

If it's worth anything , I had problems with the pads the day i bought it , they sent it back under warranty and said they put in a new sheet of pads
Greetz...

This is not normal behavior for an MPC. I seriously doubt it is a software issue. I used all the MPC software updates and this has never occured with my MPC 2500. It sounds like you have faulty pads and/or pad sensors. If it is a problems for you, the only option is to send it in for repair.

_Stilo_ :Some people reported the pad sensors/rubber mat weren't aligned properly obviously. You can open up the cover of your MPC and fix that yourself.

I had the problem for the fifth time , only now it wouldn't go away so i decided to open up the mpc , removed all the dust and stuff with an air duster , made sure the pads were properly alligned and the problem was solved.
Greetz...

no, sorry , the problem is back again.

Opened up the mpc again , did the same thing , and it's back to normal at the moment.

It really makes me wonder what exactly causes the problem.

Were the pads really misaligned when you opened it up?

Actually , no , not at all.
It's not even possible to have the pads really misalligned cause the sheet with sensors is glued to the bottom and the pads are stuck in the casing.
Those people that reported misalligned pads , how bad were they?

Fasttracker wrote:Actually , no , not at all.
It's not even possible to have the pads really misalligned cause the sheet with sensors is glued to the bottom and the pads are stuck in the casing.
Those people that reported misalligned pads , how bad were they?

I don't know...I heard the rubber mat was not aligned with the pins that fix the position. Maybe it's also a problem with the sensor sheet, but then I would return it or send it to service.

Fasttracker wrote:Actually , no , not at all.
It's not even possible to have the pads really misalligned cause the sheet with sensors is glued to the bottom and the pads are stuck in the casing.
Those people that reported misalligned pads , how bad were they?

The problem the 2500 pads have with alignment is based around the overall design of that area.

VARIABLE #1 The pad sensor are mounted on a metal frame of their own that mounts to the frame, there is a marginal amount of positioning differiential at that point.

VARIABLE #2 The rubber pads simply sit on top of this with one protruding nipple to determine which direction the pads are laid out.
It's not flush per say and has nothing to keep the pads from having a slight bulge or sliding slightly when the top cover is put back on.

VARIABLE #3 There is a flexible gap at the pads created by the thin metal the sensers are mounted on and the thinner metal that the outer casing is made from.

What you basically end up with is a tolerance that is minimal enough to pass but won't be consistent across the board.
It creates an area that will transmit vibrations from one pad to multiple sensor when and if things are held firmly in place.
You can align it but it doesn't guarantee it won't cycle back, espiecially if you move the unit around or have it tilted.
Akai cut a corner on the metal the sensors are mounted on and if it bows, bends or does anything that changes their positioning in respect to the top plate you can have problems.
If you have been inside other MPC's (60/3000/2000/4000) you will see the difference in that they are more rigid in this area.

In the year and a half I owned my 2500 it was about 6 months between when it would show up.
It was eventually a deciding factor in my selling my 2500.
My suggestion to anyone who has this problem contact Akai and send the unit in.
It will help to raise awareness on the problem.
Even then it may fall below their acceptable % of failure and continue to be manufactured the same way.

If this is the case that really sùcks cause i moved from a 1000 to a 2500 to get a better built more stable machine , especially in terms of pad design.
Thanks for the thorough explanation.

"In the year and a half I owned my 2500 it was about 6 months between when it would show up.
It was eventually a deciding factor in my selling my 2500."

That's about the same frequency i've been having the problem and every time i get it , i feel the urge to sell it and buy an mv8800.
I could buy an mpc4000 , but i want a new machine and a new mpc4000 is highly overpriced.

Well , i'm going to mail this problem to akai , i wanna hear their explanation.

So maybe if i allign the pads properly and then put something around the outside of the pads (like a rubber band or something) so that the pad sheet is compressed between the metal casing and the metal frame from the sensors , it would prevent the pads from moving around.
Just an idea , going to wait for akai's response first.