Duoverb 100 watt head

[makjoh]

Hi
My Line 6 Duoverb head was giving me some great tones. I went to switch it on recently and got no sound. The pilot light is on but the amp modelling lights are not on. They remain off. No sound whatsoever from the amp, not even a hum.
Anybody else out there with a similar problem and fix? Or at least some tests I can perform with my digital multimeter? Nobody local seems to know how to repair these things. And the line 6 site is no help either. In the trash and back to Marshal? Or is it recoverable?
Thanks guys

[52 Bill]

Welcome to the place.

Have you looked for internal fuses on the circuit board?

[makjoh]

Thanks Bill

I could only see one fuse near the mains transformer. I checked it and its fine. I have not noticed any other fuses on or near the circuit boards?

[g1]

This model appears to have a switch mode supply, some parts of schematic here:
http://music-electronics-forum.com/t36129/