Schema of Yokogawa 701120 DL1300 Oscilloscope Power suplly

[Melgatronic]

I´m a follower of EEV blog and I need the Schema of the power supply Yokogawa 701120 DL1300, a four channel vintage Oscilloscope. It makes a sound like the short circuit in secondary but I dont see which is the cause of possible overcurrent. The Supply Unit is a Nagano Japan Radio Co LTD model 3408. Please, thankyou, this is my first post.