Logitech Z906

[elektro_Jarda]

Please, give me an advice. The Logitech Z906 began to fluctuate in audio output on a regular basis. The fault is in the switching power supply, which has the designation 94V-0 E 322995, but I did not find the diagram anywhere. Only the 45 V output voltage pulses. The 12 V and 5 V output is OK, verified by an oscilloscope. Thank you for your help or ,if you can find it, for the schematic. I apologize for my bad English.