Sorry, there is no voltage at the primary of the switching transformer.

"Sheldon Cribb" wrote in message
...
Hello,

I am looking for a schematic for the Sony UP-D890 Digital Graphics
Printer. More specifically, the power supply.

There is no DC ouput. It is working up until the high voltage rectified
dc (~170Vdc). There is voltage across at the primary of the switching
transformer. The switching transistors seem ok.

Any help is appreciated.