YORKVILLE K4 Service Manual page 13

M1238 PRODUCTION NOTES
1--ADD THERMAL JOINT COMPOUND (GOOP) BETWEEN Q25 AND Q26;
Q31 AND Q32 . COVER WITH VINYL CAP (8609) AND RTV.
2--ADD RTV TO ALL CAP'S.
3--Q2 , Q13 , R134 , R135 , R156 ARE HAND INSERTED.
4--C90 AND C91 RTV AND BEND FLAT
5--CHECK THE PICTURE FOR MOUNTING THE TO-220 AND TO-218.
6--Q23 & Q33 ( #6787 & #6788 ) DON'T NEED ANY THERMO PAD OR SILICON
JUST PUT SOME THERMO CONDUCTIVE COMPOUND (WHITE GREASE)
SEE LAYOUT DIAGRAM
8841
3977 - Yellow spring
8581
TO220 parts
Sil pad
Inner heatsink
Outer heatsink
PCB
8833 screw
8841
3719 - Spring
8581
TO218 parts
Sil pad
Inner heatsink
Outer heatsink
PCB
8833 screw