My M500 has a problem: The 2 grey SYNTHE1 and SYNTHE2 buttons don't work anymore.
I opened the little beastie and had a look on the schemes, but some transistors aren't referenced but just marked "selected".
I'd like to replace TR27, TR29, TR30 and TR31, cause I don't see another possible failure on this point.
My KORG35 chips are OK.
If you own one, could you please take a look at those transistors and tell me their references? (use a lens to read on the flat side).
You'll just have to remove the 4 screws on the bottom, just under the control panel box.
Here are the location of the transistors, blue marked. They're easy to find, because of the twin brown marked KORG35 chips proximity:
Thanx a lot guys!
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