Mellotronists

HI All
Help ! my M400 need some repairs , I've got some trouble with the power supply ( giving 
big hum ) , I'm going to replace the condensers but first I 'll be very happy if I could get 
the schematics . Please let me know if some of you could transmit  . 
Please contact me off list if you prefer .
Many thanks .
Otherwise I completely restore the M400 , I want it brand new , 
see some pics on the album .
Best regards

POLYVOKS