YORKVILLE PSA1s Instructions De Service page 10

M1449 V02
1. RTV must be applied to the following caps: C22,C23,C24,C25,C26,C28,C36,C37,C50.
2. Apply RTV between C22 and C23 as well as between C24 and C25.
3. RTV must be applied to inductor L1.
4. PC8292 for V01 boards only:
Replaced R66 and R68 with #4599 jumpers
Replaced R65 and R67 with #6459 4V7 zener diodes.
Replaced R27 with #4839 150K 1/4W resistor.
5. Apply RTV between C53 and R102 and
bend C53 over R102 as in picture.
6. Place U10 and U12 aligned on the SIL pad.
No shorts to the heatsink are allowed.
7. Mount the TO-220 retaining spring as per the diagram below:
NOTE: NUT IS ON TOP!
SEE LAYOUT DIAGRAM
PRODUCTION NOTES
8841
3977 - Yellow spring
8581
TO220 parts
4022 - Sil pad
Inner heatsink
Outer heatsink
PCB
8833 screw