Problem with music angel xd-800mk3

[Barteus]

Hello. When i turn on my amplifier the light keeps flashing red and not turning white as before. I cant locate the problem. Anyone have any suggestion? Would really appriciate it

 

[gerrittube]

Check starting with the powersupply step by step.

https://taooftubes.files.wordpress.com/2012/01/23066-xd800t1.jpg

Regards, Gerrit