Yamaha AN200 Repair Part2 

Thanks! I just repaired mine without installing a spare part! It is possible to open the encoder (pull away the 4 metallic lips and open it). Then clean it inside with contact spray, ear sticks and treat the contacts with fine sandpaper. Works like new and is much easier than soldering..

Although you did a good job replacing the encoder, I believe you should have tried to clean it before. The contacts being metallic would probably react positively to a drop of Deoxit D100L. Also, the desoldering pump would help you avoid working on both sides of the board simultaneously and damaging the board's soldering points. I know you did it carefully, but it is always good to show the right way of doing things in tutorials like this. Nice to see the AN200 working again.

Thanks for this dude. Just bought the encoders thanks to this vid and your data sheet link. Really appreciate your help.

Interesting! I just became aware the AN200 exists so I never noticed you did a video on this topic. Found one on eBay, so fingers crossed it's all working. :-)

I sprayed the encoder with contact cleaner, and it worked better for a while.. I am going to have to do this one day, among another problem.. i kicked a box fan, in a rage 16 years ago, and it landed on the AN-200.. i have not been able to use buttons 12-16 for editing since then.. I already filled it up with my own music, so at least i can use it as a synth.. needless to say, it taught me a good lesson, about controlling my emotions... LOL...

Thanks just fixed both my Dx200 - cheers!

Thanks for these videos. I just took my AN200 apart to see if giving the data encoder a Caig De-oxit bath would make it right, but it looks like I may have to replace the part as you did. One thing you really should point out - reinstalling the board with the part is a little tricky since the set of buttons around the encoder all have little tabs that have to get lined-up with their respective holes before you can screw it back to the chassis. Using a small flashlight help me line them up.

Replacing a switch is Easy too? In My dx 200 the distortion switch is Not working… any Chance to fix this without soldering?

Did you buy your AN-200 on sale at guitar center... For some reason they were selling them new, for dirt cheap... It was like less than a 1/3rd of original retail price.. thats was the reason i bought it.. I made my first beats on it, so i'm attached to it.. Still find uses for it.. cool machine... I'm curious why the DX200's sell for more these days.. I owned one of those as well, but i did not get the hang of it at the time.. I was new to synthesis.. wish i would have kept it... would of-should of-could of... thanks for the vid !!!

Good job, but desoldering-pump could avoid to work both sides of the motherboard which is dengerous for other components and not comfortable to You :) I need to do the same for my AN200 and DX200 for sure!

Thank you for the great video! I've had my AN200 basically in storage for years because of this same issue. If anyone has a link to purchase the Data Encoder and Battery, that would be extremely helpful. Thank you again!

I ended up finding the datasheet for the encoder - I put a download link up on my blog for it: ranzee.com/yamaha-an200/