Yamaha AES1500 wiring diagram

[Moonshadow]

Hello, I have a Yamaha AES1500 that just doesn’t sound right since a technician replaced one of the tone pots as it wasn’t staying down when pushed. I think the wiring has been altered as the tone seems to have changed when I rotate the pot clockwise the tone is reduced, maybe the wrong polarity??? I am looking to find a wiring diagram so I can check it out. Does anyone have access to a wiring diagram or a link. Google has been unhelpful. Thanks guys! Jeremy.

[gomespt]

Ressurecting this, got the same problem and looking for the wiring info, maybe someone can help?

[YamahaGuy]

Originally Posted by gomespt

Ressurecting this, got the same problem and looking for the wiring info, maybe someone can help?

Have you tried Yamaha's help line?

[gomespt]

Originally Posted by YamahaGuy

Have you tried Yamaha's help line?

Have tried everything, meanwhile one of them worked out This forum is great but don't know why it doesn't accept image uploads, major PITA to collaborate without that.

If anyone needs just drop me a PM!