UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

bill knox · 5th Feb 2019, 7:15 pm

Hi All

I am not sure if this post is in the correct part of UK Vintage repair.

my grandchildren have a Yamaha CLP411 which until recently has performed very well, however, it now, when turned on makes a loud popping sound that is still there when the volume control is at minimum, to me that suggests either the output stage or the power supply.

Has anyone come across this problem on a Yamaha before, I will be contacting Yamaha tomorrow and I am quite certain that they will point me to a dealer, but I was also wondering if someone has a service manual or a circuit diagram for this model, I also wondered of there was available a service kit for this problem.

Any help would be appreciated

Bill

5th Feb 2019, 7:15 pm	#1
bill knox Hexode Join Date: Mar 2011 Location: Wilstead, Bedfordshire, UK. Posts: 367	Yamaha CLP411 Electronic Piano Hi All I am not sure if this post is in the correct part of UK Vintage repair. my grandchildren have a Yamaha CLP411 which until recently has performed very well, however, it now, when turned on makes a loud popping sound that is still there when the volume control is at minimum, to me that suggests either the output stage or the power supply. Has anyone come across this problem on a Yamaha before, I will be contacting Yamaha tomorrow and I am quite certain that they will point me to a dealer, but I was also wondering if someone has a service manual or a circuit diagram for this model, I also wondered of there was available a service kit for this problem. Any help would be appreciated Bill