Korg Forums

[Greezy]

Im getting no sound output from my Korg MS2000. Im getting a MPU to DSP check error in the diagnostic. Does anyone know what this means? Im also getting a DSP DRAM check Data Error D01014. Im also getting a Midi loop check timeout error. Can someone tell me what these errors mean or how i can fix it.

[kvnvk]

so are you able to select different patches, does it take longer than usual for them to load if you can...??? seems like this is a fairly common problem with the MS2000. had the same problem myself several years ago and when I checked into it the "fix" that I got from everywhere I inquired was to replace the motherboard. also, I was quoted $80 just to have a tech look at it, on top of the cost of "parts" and labor. I came to the conclusion that it would have been less of a hassle to just replace the synth. of course it's always possible somebody somewhere with some technical expertise has managed to isolate the exact problem and has a cheap and easy repair to get the board up and running again, but so far I haven't run across any such information.

[darketik]

Just for Info, I have the same problem which happened this week end. i got my ms2k for 8 years now.
My ms2k is really slow to change program and do not generate any sound anymore..
When i launch a check with 'ModSequence On/Off' & 3', i get a DSP DRAM - data Err d01014.
i have 3 questions :
did you change your dsp 56362 or anythingelse ? Did it solve your problem ?

Do you think my problem is coming from the DSP or do my only solution is to find a new ms2k and throw my one by a window ?

What Korg support told you about this problem?

thanks

[Agent.Orange.Blossom]

Recently had t he same problem ...

Just replaced DSP56362 with a FREESCALE
Also found & reworked a couple dull solder spots
Thank heavens for hot air rework stations ....
Reloaded OS

Works like new.

KORG quoted me $397.31 for replacement board a DSP56362 costs $29.00

[winged EEL]

Yes, I had the same problem about 5 years ago.

Korg told me that the only solution was to replace the motherboard...Yikes.....so about $500 later my MS2000's motherboard was replaced and has been working fine since then.

A QUESTION for Agent.Orange.Blossom

Are you saying that you removed the failed DSP56362 From your MS2000's motherboard and installed a new one????

I have the old motherboard that was taken out of mine and I am looking at it right now.....how did you get the old DSP56362 out and the new one in????

Looks impossible to me,... in fact, it looks to me that the MS2000's motherboard was manufactured by robotics!

You make it sound so easy!
Does the DSP56362 just pop out with the right tools or what??
i.e. expensive hot air rework station IC Removal gear and lots of skill to go along that I'm sure.

Please explain.

This is great info.

Thanks

[darketik]

[cdog]

Yes, sadly a google search has brought me to this page, as my MS2000 makes no sound as well. Apparently these parts are very sensitive and prone to failure. I have ZERO technical expertise when it comes to soldering, so does this mean I have no hope to replace the DSP? Its only $13 to order a new one online, but I have no idea how to install it.

Any ideas or suggestions would be highly appreciated. I like the unit a lot but Im hesitating to buy a new one

[X-Trade]

If you have no technical expertise or soldering experience then the chances are you will only screw it up.

Find someone who does have that experience and see if they will install it for you. I used to work in a computer shop and we'd occasionally do repairs to musical instruments. We did soldering down to the component level. I think that is quite rare though.

It is also possible that the fault situation was caused by something else and replacing the DSP won't work or will only work for a short while before the fault condition reoccurs.
_________________
Current Gear: Kronos 61, Karma, RADIAS-R, ESX-1, microKorg, MS2000B, MiniKP, AX3000B, nanoKontrol, nanoPad MK II, Novation ReMote37SL, Akai APC20, MOTU MIDI TimePiece 2.
Past Gear: Korg TR61, Poly800, EA-1, Kawai K1
Software: Cubase Studio 4, NI Reaktor 5, FM8, Ableton Live 9. Apple OSX(10.8.3 Mountain Lion) on 15" MacBook Pro

[darketik]

For sure the old dsp must be unsoldered and the new one soldered by a professional if you are not one.
Which dsp ID did you ordered for replacement ? i found that XCB56362PV100B(S) could be the right one. do you think i'm right ?

Otherwise, i think that even if the dsp is not the real origine of the ms2000 failure. It do not work anymore, trying to change the dsp and succeed or having a synth that do not produce any sound has only one possible choice.

But you are right also, we have to check before that there is nothing else less complicated inducing the failure (dull solder) before changing the main part of the synth.

[grahamprie]

I've just come across this topic after seeing an MS2000R for sale on ebay with a description of a fault which sounds like the one which started this topic.

I can confirm that the DSP chip was made by Freescale and the XCB prefix on Korg's part number ( from the service manual ) indicates that it was an early production run when they designed the synth.

There are lots of different variations of this chip, including some which included a hard-wired program to decode Dolby Surround Sound.

The 100 on the end of the part number indicates the maximum speed of operation - anything equal or higher should be OK as a replacement.

Mouser currently offer the DSPB56362AG120 for £10.55 and I'm about to check if the package is the same before ordering one ( if I win the synth ).

This family of parts is obsolete, so it's anyone's guess where there is any stock. Korg have never bothered to hold spares at the component level for any of their products - it's easier for them to only carry complete tested boards.

I don't have a fancy hot-air rework station, but I've been replacing chips like these for the last 15 years by adopting a different approach. You have to assume that the circuit-board is the valuable part and work so it's protected.

I use a small craft-kinfe or a scalpel to cut through the pins of the chip, close to the black moulding and once the chip is loose, I run a lot of solder onto the stubs of the pins and gently slide them off the PCB pads.

The next stage is to clean the pads with desoldering braid and flux remover, till the pads look like they've never been used before.

A light coating of liquid flux is next, before placing the new chip on the board. Gentle pressure from the soldering iron is all it takes to tack down a pin at each corner and once the chip is in place, a small amount of new solder on the iron wil be enough to flow round each pin - I sometimes do them 3 or 4 at a time, making sure to press on the pins, NOT the pads.

If you get too much solder on the pins it will form a bridge between them, but you can remove the excess with the solder-braid.

Purists will be recoiling in shock at this point because I haven't mentioned anti-static workbenches or grounded wrist straps. These old chips are surprisingly tolerant of static, so as long as you have a grounded soldering iron, a jack lead to an amplifier which is grounded to the power supply is all you need while you're working. You can discharge any static in your body by touching the jack plug before you start.

Hope this helps - Graham.
_________________
Playing guitar and keyboards since 1959.
Mending them even longer...

[rico_suave]

You are right, this mouser part works perfectly! After resoldering the DSP, double checked for bridges, the MS2000r worked flawless - even without reloading the OS 1.07. Not having SMD skills and hot-air station, I've used the Chip Quick SMD1 for removal & the flux to help soldering. Good luck all!

[polyphonik]

Im haveing the same problem . I can replace the chip no problem but I opened the case to find someone soldered some jumper wires and I am not sure if this is the correct board for this unit. I have a 2000R but the resister is on the 2000 not the 2000R. Can some one tell me if this is the correct board and if the jumpers are factory?