Yamaha D1500 delay schematics. feedback problem

[GeorgeV]

Hello!

Im looking for a schematic for the yamaha d1500 delay (not just the service manual).The problem of the unit is that is not producing the feedback repeats!Has anyone encountered tha same problem?

Thank you

 

[Aeres Custom]

Hi george, im looking for schematic too
do you have schematic ?