MPC4000 Screen w/ Dead Pixel Lines

What causes the dead pixels in the white screens. My old 2000xl had the same pixel problem.(white screen) My 3000 has never had that issue.(blue screen)

If it's just a pixel then probably the ink or whatever it is has ceased responding to electricity like its supposed to.

If it's a whole line that goes out then the very small electrical contacts at the edges of the LCD have probably started to not make as good contact anymore.

The backlight colour doesn't really mean anything, but the reason that newer screens don't last as long is because they are not as well made, or the implementation in a particular machine is not as carefully thought out and there's too much heat or something.

All the classic 80s and 90s Optrex LCDs are no longer made in Japan and direct comparisons between the two makes it obvious that the older ones are better built.

If you're getting that sinking feeling like GDP isn't telling the whole story then you'd be correct - more and more choices of crappier and crappier stuff.

However, at least there are still replacement LCDs for some of the older screens!

Thanks! I have never seen the MPC's with blue screens have this problem. I've had to replace 2 MPC's with white screens.

let me guess... one MPC was yours and the other one belongs to bomb beats...

this dude is so mad he's sending me private messages now...

crossings wrote:this dude is so mad he's sending me private messages now...

haha. i feel your pain.

happened to me the other day when clowning jah

Cool. Just got our second 4000 in at the studio. Cleaning it up,now. I will need a new contrast rotary encoder, one slide post switch and eventually a new screen.(There is three lines through it. There is a lot of noise when playing back samples, though. The 4000 in the control room plays samples clearly.

Just ran through some old threads and found that improperly seated or bad memory can cause this sound quality problem. Removed the second 256mg ram and the problem went away! This MPC costs us $525 including shipping.

The contrast knob is supposed to be removable? But, it won't come off? Am I missing something?