Korg Forums

Chemtek · Joined: 04 Dec 2009 Posts: 10

i connect one psu of 110V in europe (220-230V) in my korg EMX1, yes i know stupid mistake!!! I bought a new transfomer (220V) but the problem is the machine turn on but nothing on display (yellow display) and no sounds! i need help, its possible to fix the machine or i should buy a new one??
please help me!
thankx

Chemtek · Joined: 04 Dec 2009 Posts: 10

i advice ppl to take care about what happen with me, otherwise u will burn the machine! anyway, i didnt had any help in this forum about my issue!

oldboya · Joined: 22 Apr 2009 Posts: 9

when you say you bought a new transformer , do you mean an AC adaptor ?
I had a problem like this with my kp1. i thought i fried the whole thing, but as it turned out it was just the adaptor.

harvestein · Full Member Joined: 04 Mar 2008 Posts: 109

The surface mounted fuse has blown, it is a very small fuse on the inside of the machine.

You can short it out, or solder in a new one. There is a very good guide posted here:

http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=26063

If your not confident enough to do this then send it to a repair shop.

good luck!
_________________
Aint no thing like a chicken wing.....

Chemtek · Joined: 04 Dec 2009 Posts: 10

the official korg repair shop said that i burned the main boards! but thanks for the info ...i will try to change the fuse

SI FI NOISE · Joined: 18 Feb 2010 Posts: 21 Location: Liverpool

yeah its your fuse , its a common fault with the emx , just had my fuse replaced , now its just like new.

Chemtek · Joined: 04 Dec 2009 Posts: 10

thankx to everybody that try to help! i hope it will be the fuse! i just send to some repair shop! i will have news sooon.....

again, thankx for the help!

Chemtek · Joined: 04 Dec 2009 Posts: 10

just came from repair shop, and they sad its the mainboard that is f***! nothing about the fuse. i spoke with the korg repair shop and they said the same, "its mainboard, better to buy a new one"! i am very very sad...my beatiful blue korg, hopefully i have the SX! please guys if u have another ideia please help me!
thankx to everybody that try to help!
regards

xmlguy · Platinum Member Joined: 26 Nov 2007 Posts: 3605

There's not much anyone can do or advice to give when you do what you did. A tech has to look at it, and then 99 times out of a hundred you're f....d. The rest of the time you're screwed. Usually it's not worth repairing because the repair is more expensive than buying a used one. You could sell it or keep it for parts.

The only thing you can do is prevent doing that to other gear in the future. It's a tough lesson to learn the hard way, but you could consider yourself lucky that you didn't learn by frying much more expensive gear.

Music gear is not a good voltage tester, at least not more than once.

Electribed · Joined: 17 Feb 2010 Posts: 7

Are you insured?

My home and contents insurance covers me for accidental damage.

harvestein · Full Member Joined: 04 Mar 2008 Posts: 109

They are just saying its the mainboard because they are not familiar with the problem. The mainboard fuse is designed to protect the mainboard when you make the type of mistake you did. You can be 99% certain it is the mainboard fuse that has blown, not the actual circuitry on the board itself!

Just replace the fuse or send it to a Korg repair service provider.

Ive allready posted the instruction for fixing it:

http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=26063

these repair shops are feeding you a line, it is a common problem with this product. It happened to my friends EMX and the local repair shop told him it was knackered. I found information about this fuse (thanks to the guys on here), and he repaired it himself. it was just this little fuse!

The symptom you describe is the same as the blown mainboard fuse, if your not confident enough to do it, print out the above forum thread i posted and take it with you to the shop and ask them to do it.

Or you can try speaking with Korg themselves and they will give you a quote, you can contact the servicing team in the UK (if that where you are) by using this site:

http://www.korguksupport.co.uk/page.cfm?pageid=388

good luck
_________________
Aint no thing like a chicken wing.....

xmlguy · Platinum Member Joined: 26 Nov 2007 Posts: 3605

It only takes about 30 seconds to test the continuity of the fuse while it's still in circuit. If the techs didn't do this, I wouldn't let (the effn' lazy bastards) techs touch it again to repair it.

Chemtek · Joined: 04 Dec 2009 Posts: 10

hello Harvestein, thankx for your help, really! Iam from portugal and in fact in the korg repair shop they never saw this machine, they were unpolite and had a very quick answer about the issue. I found this picture about changing the fuse and i just went to normal repair electronic shop, they said the same they continue to say that i f***d the motherboard. I will choose your advice and send to it to UK.
thankx mate, iam very happy for your comment, and for the help!

regards!

Yatmandu · Full Member Joined: 18 May 2008 Posts: 162

I would listen to xmlguy. Just because someone happens to work for a Korg repair center does not mean they're not a complete idiot. It's a simple test: get someone with an ohm-meter to do it. All signs point to a blown fuse, and the idiot at the repair center has nothing to lose by telling you the entire mainboard is fried! Put it this way, if it really is fried, then you can't possibly do any more damage to it by checking it with a meter. I've got too many life experiences to put all my trust in some repair shop muppet.

trypset · Joined: 24 Feb 2008 Posts: 35

yeah at least give it a shot, the fuse can't be that expensive, sounds like you are going to pay more for getting it just looked than than trying to solve it with the posted resolution.