Post your views and questions about the Akai MPC2500
By rarara Sat Sep 20, 2008 11:17 am
Is this a common issue: when I have the Q3 active button selected, a very faint red flicker occurs with the Mode buttton? Doesn't appear with any other combination of buttons that ive seen.

Anything to worry about?

thanks
By _Stilo_ Sun Sep 21, 2008 9:28 am
Yes, on my unit too.

And check this out: When recording to a sequence, the Undo button does the same, just before it comes on fully when you stop recording. I wouldn't worry too much about that.
By concepts Sat Sep 27, 2008 6:24 pm
I did some more testing and this is what i got.

Q1 lights up REC
Q2 lights up Q1
Q3 lights up MODE
Q4 lights up WINDOW
BANK A lights up BANK B
Bank C lights up BAnk D
Bank D lights up BANK A

Basically a light button will light another light button.

From the repetitiveness, i assume its normal.
By rarara Tue Sep 30, 2008 9:03 am
initially i thought this could have been due to bad circuitry/soldering, but i now think its just some light leaking from the button that you press, making its way to other points. i hope so anyway. i may double check this when i have the casing off to fit a CD/HD at some point in the future
By _Stilo_ Tue Sep 30, 2008 6:54 pm
rarara wrote:initially i thought this could have been due to bad circuitry/soldering, but i now think its just some light leaking from the button that you press, making its way to other points.

No, that cannot be true, as some of the combinations concept posted are too far away for that. I thought so too first. You can see the difference e.g. between Bank A - B and Bank B - C. The fact that it's the same on everyone's unit speaks against bad soldering too. So I guess it's really a thing with the power distribution to each of the lights.