Does not power up

Hi,

Here is a link to the service manual for a Laney Prism series P20. I think that it also covers some parts of the P35.

To download the file:

When the sentence below the Document preview box on the webpage changes from This file is downloadable free of charge : ...processing... to This file is downloadable free of charge: Get Manual, click on the Get Manual as this is the download link. (Be patient it takes a little while for it to be available for download)

Here is an image taken from the manual showing the input power supply wiring diagram. You may first wish to verify that you have +ve 18VDC, -ve 18VDC and +ve 8VDC supply from the power input - see image) before proceeding further.

(Click on image to enlarge for better viewing)

Hopefully this is of some help