Where can I get the Korg m50 service manual or parts manual?

Question edited for a more clarity.
Question moved from Cell Phones category..

Help in the link

https://www.google.com/search?q=korg+m50+touchscreen+not+working

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Might be a case of opening up the M50 as the previous poster did and wiggle connectors and components until the sound is affected. If you have some electronics experience, it should be fairly easy to figure out which board to investigate.

Your best bet would be to contact Korg directly. Here is the link to their USA support page
Contact KORG

Hello, I own a Korg M50 myself and I had the same issue, its a quality control issue at their factory but, I may have a solution for you I found at a Korg forum. the issue is with these teeny cables inside the synth. you open the rear panel and firmly press each teeny cable into the terminals again and re attach and secure them firmly just finger push them all into their teeny sockets. this should stop the freezing I tried it the synth played all night with out freezing . I hope this helps other wise the solution with the capacitors is simple you order a new mainboard but they run about 400 plus. but try my solution it may work for yours this answer comes from a korg tech, he stated 90% of this freezing issue he has encountered has been these loose teeny cabling adapters, hope this helps, Have a great day..

Hi there's this website something like reliable-store and it is very amazing for manual for repairing servicing anything
someone on fixya recommended it to me and I thank him even today

Well looks like you have a capacitors problem. I had this problem too and a friend soldered two new capacitors in place. You can find information on the korg forum but most important is to know where the capacitors are located

http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=92395

Hello I have this M50 61 key korg model, I had the same issue the fix is simple remove the back cover on the unit, carefully push in all the small cables reattach them well do it to all the small connectors these cables get lose and cause this issue, good luck let me know if that helped I fixed mines that way its been working excellent since. good luck..

PLEASE HELP ME... this appeared in my KORG M50.. says. LOADING OS FAILED..... Is ther a solution to this...

It may not be the pedals as the fault can be oriented within the set.
So I think you can open the back of the set and check for all connections to be tight , remove and refit.
If this wont solve it is not adviseable to check this higly intergrated PCB without a help. So consult the Korg service.

Refer to page 222 in your PA800 user manual regarding calibrating the polarity of the damper pedal. The setting in your unit MAY have gotten clobbered.
It is NOT clear if you have a PA800 or M50-88. If you have the latter, then read page 22 of your user manual where it says in certain modes the sustain can be set to affect only certain voices. Again, see if internal parmeter settings may have been clobbered to disable the sustain.