roland tr 606 service manual

pdman1 · Posted: Fri Apr 06, 2007 9:24 am Post subject: roland tr 606 service manual

does anyone have a tr 606 service manual.
Again, I have searched the net and could only find the users manual.

Thanks

Electro · Joined: Apr 13, 2007 Posts: 2 Location: Aust

Hi
Try this
http://machines.hyperreal.org/manufacturers/Roland/TR-606/schematics/
Someone cared enough to scan and post them.
The service manuals in those days didn't have much more than that
in them.
I've got a 606 here with white noise permanently coming out the OCH.Hat.
I spose some gate is permanently open.
If anyone has been there please don't hesitate to post.
Meanwhile I'll continue with the detective work which is how I landed here !
Cheers

Electro

Electro · Joined: Apr 13, 2007 Posts: 2 Location: Aust

In case any one is interested the noise turned out to be rather simple
Q 36 on the main board in this case a 2SC603 obsolete toshiba transistor.
Just used a gp 2sc type and worked fine.
So now its controllable noise.....!

cheers

Laughing

(happy) Electro

stevenclements · Joined: Nov 16, 2005 Posts: 74 Location: Edmonton, Alberta

I've got a high quality scan that I did and would be willing to share... can someone host this?

Cheers
Steven