Clavinova CLP-820S Service Manual

1

I have a 2000 CLP-820S that I’m trying to save for a friend, maybe give it another 25 years :slight_smile: I’ve searched all over, archive.org has one service manual. I called Yamaha, no go. Anyone able to point me in right direction?

Symptoms were initially intermittent no power, now it’s continuous; I was hoping for easy power supply issue: ps is 12V, +3.3v on daughter processor board, there’s life on scope from crystal resonator, no audible signs of life from relays. Without Service Manual I don’t know where to proceed.

In old radio gear, capacitors of this vintage would likely be an issue. Is recap a thing with instruments of this age? There was a rusty super cap that I replaced.

2

I was hoping to find it on the internet, but came up with the same results as yourself.
I did see an original paper copy on eBay for the 840 & 860 models.
No idea if they’re very similar under the hood.
Might be worth asking the seller because there are several manuals for sale for the CLP range.