The OS on the original Mpc flash drive is not loading when i turn the Mpc on. The screen shows

Have you tried it with batteries? Are you sure the power supply is working correctly? It should not need the OS to operate as a keyboard disconnected from the computer.

The cable connection is just a MIDI cable that uses opto-isolators so the 2 items are electrically isolated from each other. The software driver for the Korg should load without problem. The Korg program itself may be looking for inputs that are not there when the keyboard is off and the program itself reaches a stop command.

If the PA80 will not work on just the power supply- the power supply can be the fault- it has an internal fuse. Finding a similar supply with the same coaxial plug wired the same polarity is the way to test it if the battery option is not available.

from the akai forums:


to set the os back to factory settings press and hold the erase key till the mpc has booted to the main screen.

to erase the harddisk goto either the load or save screen and then choose utility - there you will find the option to format the hdd.

you can also format the drive (or any inserted compact flash-card) from your computer thru the usb connection, but it is recommended to use the internal format because the mpc can be a little picky when you format it from the outside.

at first i would check if there is any folder or the internal memory is set to autoload and just turn that of or point it to another folder of you choice. that way you can keep the factory delivered sounds. maybe you want to use them later, even if it is just to explore the mpc. the factory sounds can be also downloaded later, but be advised that there are different iterations of the stock sounds, depending on whether your mpc shiped with a 32 or 128mb compact flash card.

also the mpc os is not on the harddrive but in the internal memory. to check the version hit mode-> pad10. latest official version is os 1.24. if your main srceen looks different than in the manual check double and triple before you do anything, because the previous owner might have installed the third party jj os which comes in different versions. some of them cost a lot of money! if you find this check the other forum here for the alternative os.

If you flashed a bad OS, the unit MAY have to go to the factory to be reloaded.

Go to VSPlanet.com and see if someone there might be able to help.

Simple way is MIDI out from Juno to MIDI in on MPC, then (depending on how you want to work), connect MIDI out from MPC to the in on the Juno. If you do this you MUST turn local control off on the Juno or else you'll get double triggers (internal + msg in from MPC). Now to record sequences on MPC , set MIDI to as track in setup window (on the 2500, this is accessed by pressing MODE then pad 9, then press button under the corresponding tab [on LCD]) then set your MIDI channel by port, meaning if your MIDI cable is physically connected to out A, in your LCD in bottom right corner it will show as follows: 1A. This indicates you are transmitting on MIDI channel 1; port A. Remember, MIDI IS NOT AUDIO!!!!! Since the Juno is a synth and not a workstation, all transport controls are handled by the MPC, that's pretty much it... Hope this helps a little, enjoy!

P.S. Go to mpc-forum.com its THE sh**! They also have links for their e-book I have one for the 2500 and its awesome!!!

Try this site:http://www.akaipro.com/mpc2500 Try downloading all the the release notes for ver.1.24 if you haven't already. Download the ver.1.24 which seems to be the newest to your computer first and install from there. It might have gotten corrupted the first time you tried it. You will have to email them using the form for the newest release notes and the installation instructions:http://www.akaipro.com/mpc2500 http://www.akaipro.com/content1924.html and http://www.akaipro.com/mpc2500 are the URLs you need. Hope this helps.

I'm having the same problem. This is my second MPC 1000 and my first one didn't have this problem. I bought one of the first one-thousand MPC 1000's sold in the US. I loved it. I sold it for rent, boo hoo. I'm glad to have another one back in my life. But sad to see it having issues already. I've only had it for a week. I have emailed Akai regarding this issue. I'll post pack here if they give me a good fix.

Data Compatibility
MPC1000: SEQ, WAV, PGM
MPC2000/2000XL: SEQ, WAV, SND, PGM (Most parameters of PGM file can be loaded.)
MPC4000: SEQ, WAV, PGM (DRUM program only. Only note assign and tune are loaded.)
MPC3000: SND (THRU Computer)
Z4/Z8: SEQ, WAV, PGM (DRUM program only. Only note assign and tune are loaded.)
S5000/6000: WAV only (THRU Computer)
S1000/3000: No compatibility

check that they are wav files not mp3 files, and then check that they have the right extention WAV after the name.

Have you tried formatting the disc using your MPC 200XL?

sounds like you have dislodged the memory, you need to get in the bottom and gently remove the ram and reseat it with a slight click.