It’s a 2500 not a 1000. It doesn’t have a hard drive. I tried everything! Reseated/cleaned/completely removed the 128mb ram, and it still restarts by itself. I have tried a different power cable, diff outlet, even removed free JJOS that was previously installed in the unit, and I’ve noticed that doing this had an effect on the way it would boot up. With free JJOS on boot up the screen is really dim. With the Original OS installed the screen doesn’t dim upon starting up the unit! Could be a sign that this is a motherboard issue? Another thing that is weird is when it does do this automatic restart problem; there are lines in the screen, and boxes! Sometimes it wont restart properly, and it will hang on the boot up screen constantly till you physically turn it off. I was told that this could be a bad capacitor or series of bad capacitors on the powerswitch assembly board or worse the motherboard! Have only had this refurbished 2500 for a few months, and it only started doing this, and was never like this when I first started using it…It has progressively gotten worse which makes me believe a part inside the unit is on its way out? What I’ve noticed is that it will restart by itself just having it on doing nothing, or it will for sure restart once you get the sequencer going, and have it playing for a few mins. Another thing, is when it is about to restart you can hear the audio start to become glitchy, and then a weird zapping out noise occurs, then restarts. I haven’t tried running the unit without the CF card, but I assume it will still do the same thing. Everything works just fine when the unit is on…very strange! I’ve opened up the unit to look at the power board, and from what I can tell there doesn’t look to be any blown/expanded capacitors or loose connections anywhere! If it is a motherboard issue I may be out of luck. There are no replacements for the mainboard on these 2500’s anywhere online. Also trying to fix this motherboard I was told from mpcstuff.com, and others that the mainboards may not lend to repairs so well. I have read everywhere on this forum about restarting issues, and no one seems to have a definitive answer to what could be causing this issue. There was a guy on here with an mpc 5000 years ago brand new out of the box from akai that had the same issue, and was just sent a replacement lol. I’m out of ideas to what is causing this. Most likely it is a motherboard issue because mpcstuff.com have told me they think it is the motherboard. So they have obviously tried repairing the motherboard, and have failed either by bad workmanship or the board is just bad, and is going out for real. Mpcstuff is shady, and don’t trust them to do any repairs. They offered me 400$ to trade this back in when I just spent 1400$ on it a few months ago
I have a feeling they are trying to rip me off again in saying it’s the motherboard going out so they can get it back, to fix it for real this time, and sell it to another unsuspecting customer making more money off them.
The only other part that I can think of that is causing this restarting issue inside the unit is the power-switch board! Maybe a bad fuse or bad capacitors on this part would cause it to do this. Luckily there seems to be replacements for this part online, but want to exhaust all other possibilities before I try, and replace this part. I may have to send it in to FORAT for diagnosis/repairs. I don’t trust mpcstuff.com anymore!