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 Forum index » Discussion » Schmooze
Classic synth found at dump
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audiodef



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PostPosted: Sat Nov 17, 2018 2:07 pm    Post subject: Classic synth found at dump
Subject description: My, oh my
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Went to the dump today. While unloading recyclables, I noticed a keyboard in one of the electronics recycling bays. Curious - and thinking it was surely a Yamaha PSR or a Casio someone tossed - I walked over.

Nope.

It was a Korg Poly 800.

You're not supposed to take things out of the dump, but nobody was around, so screw it, I took it.

No idea if it works yet. I need to find a power adapter, or put in some batteries. There's a bit of rust around the battery cover, so I'll have to inspect that more closely.

I assume it was tossed because it doesn't work, but you never know. If it doesn't, maybe someone here would like to take it and fix it - and keep it.

More to come as I find out!


IMG_20181117_155243.jpg
 Description:
Korg Poly 800, rescued from dump
 Filesize:  2.42 MB
 Viewed:  271 Time(s)
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IMG_20181117_155243.jpg



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Audiodef
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AlanP



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PostPosted: Sat Nov 17, 2018 2:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

https://www.youtube.com/watch?v=gUfq93PSuzk

Teardown, cleaning, and some repair of a Poly800. Might help you.
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audiodef



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PostPosted: Sat Nov 17, 2018 2:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks, Alan. Cool
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Audiodef
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audiodef



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PostPosted: Sun Nov 18, 2018 8:41 am    Post subject: Reply with quote  Mark this post and the followings unread

So I opened it up today. It looks like someone left a couple of batteries in there, which leaked. This is the apparent reason for its trip to the dump. I'm hoping that's all it is, because this can be easily fixed.

I just need to unscrew whichever board the RAM battery is hidden under so I can replace that - maybe a la the video Alan linked above.


IMG_20181118_101323.jpg
 Description:
Not a good sign.
 Filesize:  2.35 MB
 Viewed:  244 Time(s)
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IMG_20181118_101323.jpg



IMG_20181118_101352.jpg
 Description:
Yep, not good.
 Filesize:  2.27 MB
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IMG_20181118_101352.jpg



IMG_20181118_102740.jpg
 Description:
Ouch.
 Filesize:  2.55 MB
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IMG_20181118_102740.jpg



IMG_20181118_103018.jpg
 Description:
But at least it's pretty much intact - hopefully.
 Filesize:  2.71 MB
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IMG_20181118_103018.jpg



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Audiodef
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audiodef



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PostPosted: Sun Nov 18, 2018 12:21 pm    Post subject: Reply with quote  Mark this post and the followings unread

I removed the corroded spring coil for the C cell batteries on one end. Now I'm trying to remove the plate on the other end. Using the flash on my camera shows just how bad it is. It appears to be inserted into a plastic slot. It's possible glue was involved, but I'm hoping it's just rust that's making it stick.


IMG_20181118_141844.jpg
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Pretty! Not!
 Filesize:  2.84 MB
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IMG_20181118_141844.jpg



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Audiodef
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audiodef



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PostPosted: Sun Nov 18, 2018 1:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

Gave up on trying to repair the battery terminals and ordered a PSU. Should arrive within a week, and then I'll know if I have a working instrument.
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Blue Hell
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PostPosted: Sun Nov 18, 2018 2:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

That last picture is beautiful BTW (zoomed in on it a bit) :-)
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also .. could someone please turn down the thermostat a bit.
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PHOBoS



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PostPosted: Sun Nov 18, 2018 2:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

Blue Hell wrote:
That last picture is beautiful BTW (zoomed in on it a bit) Smile

indeed, lovely colors and textures. Razz

nice find damien!
(vinegar can be useful for cleaning up battery corrosion btw)

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audiodef



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PostPosted: Sun Nov 18, 2018 3:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

Yes, I was thinking exactly the same thing. Nice colors, could make a nice cover photo for something with a well-placed filter.

EDIT:

Audio tech pun not intended. Razz

EDITEDIT:

It occurs to me from looking at the zoomed-in photo that I could clip the wing off the current terminal plate and find one that I can bend over the old one, then solder the wire onto the new one.

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Grumble



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PostPosted: Mon Nov 19, 2018 12:05 pm    Post subject: Reply with quote  Mark this post and the followings unread

nah, just dremel the hell out of it Laughing
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my synth
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audiodef



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PostPosted: Mon Nov 19, 2018 1:48 pm    Post subject: Reply with quote  Mark this post and the followings unread

Well, you know, recently, I dremelled my Nord in half...
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PHOBoS



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PostPosted: Mon Nov 19, 2018 4:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

Laughing it'll never get old (neither did the synth)
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Grumble



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PostPosted: Tue Nov 20, 2018 5:24 am    Post subject: Reply with quote  Mark this post and the followings unread

audiodef wrote:
Well, you know, recently, I dremelled my Nord in half...

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audiodef



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PostPosted: Tue Nov 20, 2018 6:39 am    Post subject: Reply with quote  Mark this post and the followings unread

Laughing
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Audiodef
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audiodef



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PostPosted: Sat Nov 24, 2018 2:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

Got the AC power adapter. It powers up just fine. Have not heard it yet. Need to find a spot for it in my patch bay, which I will do later.
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1roomstudio



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PostPosted: Sun Nov 25, 2018 10:26 am    Post subject: Reply with quote  Mark this post and the followings unread

So awesome that you are rescuing this bit of gear.

Thank you for sharing

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audiodef



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PostPosted: Sun Nov 25, 2018 10:51 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks, 1roomstudio.

Update: It does work. So the next step is to take it apart, clean it up, replace the RAM battery, and put it back together.

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