Exchange tips and tricks for the Akai MPC4000
By nyarlathotep Tue Jul 26, 2011 9:36 am
The ram on mpcstuff (like everything else they sell) is well overpriced. Get the exact type number and search around. I bought 512mb (2x 256mb sticks) of good quality ram for my mpc 4k for less than £10 (something like $6 or so).

Pretty sure this is the type you want:

http://www.ebay.co.uk/itm/Toshiba-Equiu ... 29f9b8b55a

Check the model properly before ordering!

If it isn't the ram at fault you should save your money for whatever comes next.
By La Paz Cruda Tue Jul 26, 2011 7:59 pm
Hello again ...

I've tried RAM "256MB PC100 SDRAM 168PIN" but the noise continues, and not only that, does not recognize more than 256MB of RAM + 16MB of internal RAM sockets ... both recognize the 256MB module, but the two together no ...
By La Paz Cruda Tue Jul 26, 2011 8:09 pm
Yeahhhhhhhhhh, ahora ya conseguí que me reconociese los 512Mb de RAM, de todos modos el ruido continúa...alguna propuesta de reparación? Gracias a todos!!!!
By La Paz Cruda Tue Jul 26, 2011 8:22 pm
I have probed to disconnect the HD and the noise persists, the same operation with the CDRW and the same noise...when I turn on the MPC the noise starts like a ground sound...:(
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By gertie Tue Jul 26, 2011 8:26 pm
have you tried plugging it in using a different plug socket? it may be the socket in the wall u are using is not good....
By La Paz Cruda Fri Aug 05, 2011 3:22 pm
Yes gertie...but the noise persists, only when some sound is playing, by the pads or by the AUDITION button...:(
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By konc3pt Fri Aug 05, 2011 4:53 pm
is the noise still present when you take out ram completely ?
By MPCdawk Sun Aug 07, 2011 6:18 am
What about removing the FX board, might be worth a try (faint hope)?
By nyarlathotep Mon Aug 08, 2011 6:23 pm
sorry to say but it sounds like the adda board not the ram. If I were you I wouldn't bother with the effects board as it sounds like a problem with the dac on the adda board. Do your usb connections still work? I am pretty sure these are on the adda board, that may give some indication as to whether it is functional.

You'll need to source a replacement adda board, contact vst service and see if they have one from a junked mpc. I say this as if it turns out not to be the adda board it won't cost too much.
By La Paz Cruda Mon Aug 08, 2011 11:03 pm
nyarlathotep perdona pero tus últimas frases no las comprendo porque no hablo inglés, es difícil para mi escribir en otra lengua que no es la mía.

Lo que he entendido es que el problema está en la placa de AD/DA, que pruebe con otra tarjeta...?

Gracias por ayudarme. :)
By La Paz Cruda Mon Aug 08, 2011 11:04 pm
upps, sorry!

Nyarlathotep sorry but your last sentences do not understand why I do not speak English, it is difficult for me to write in another language that is not mine.

What I understand is that the problem is on the board AD / DA, to try another card ...?

Thanks for helping. :)