External to Internal power supply conversion on the M50

McHale · Post by **McHale** » Fri Jun 12, 2009 1:55 pm

Last night I opened the M50-73 for the first time. Initial comment - TONS of screws...

There is plenty of room if you want to mount the external power supply inside the case and install a standard 3 prong AC socket on the outside of the case. This is what they did on the M3.

Had I had the tools/parts with me I'd have done it last night. But it'd be a simple process if you're tired of the extra adapter to haul around. I'm always worried I'm gonna snap the female socket mounted on the M50. This will fix that once and for all.

I also put the adapter in a small case last night to see what the heat build up was and it was the same as the adapter inside the M3.

Pictures soon...

-Mc

mocando · Post by **mocando** » Fri Jun 12, 2009 3:29 pm

Great info. Although my adapter fits nicely below the M50 on my SKB case, it won't hurt to have it nicely inside the M50 and just hook a regular power cable.

I think the whole adapter-inside-the-case issue has to do with not having the adapter standing in the floor taking dust and kicks, and the weaker cable that hooks to the M50. A regular power cable is much less intrusive and more durable, so anyways is a good idea to do the mod.

Looking forward for your images, and instructions once you get the tools and parts.

McHale · Post by **McHale** » Fri Jun 12, 2009 7:07 pm

I never even really thought about it until I saw the picture of the inside of the M3 and that's exactly what Korg did there. And then I though, why *NOT* do it with the M50?

I just picked up the AC jack. Just have to plan how I'm going to securely mount the power supply inside. I'm doing this one way or another.

-Mc

mocando · Post by **mocando** » Fri Jun 12, 2009 9:42 pm

Hmm, maybe a double faced velcro patch would be good, although temperature might be of concern since it might loose up the glue.

As for the external jack, I already disassembled an old and failed PC power supply, and removed and unsoldered the power jack. I would use a regular PC power cable, cut to size: the plug into the adapter and the other side soldered to the power jack.

Flushing the jack against the case means opening a hole in the casing, which I don't like too much, but is the only way.

I would also remove the external round jack and plug it to the adapter cable. covering the whole thing with electric tape or duct tape (for durability). Cable ties for the whole cable, carefully folding it so it's loose on the turns. Then covering the hole with a rubber plug or something. That way you won't have to cut the adapter cable, in case you want to go back to the way it was.

Any more ideas?