I had a problem with the mains transformer, I did not know the voltages on the secondary, this manual helped me to solve this problem, thanks for the manual!
Reference is made to Service Manual: 4822 729 21991 Change code number position 16 from 4822 321 10668 into 4822 321 11485 Change code number position 17 from 4822 265 31319 into 4822 265 11568