YORKVILLE PSA1S Manuel De Service page 36

MOUNTING HARDWARE & INSTRUCTIONS FOR HEAT SPREADER ZC1611:
1- First install #8742 screw to align heatspreader ZC1611
2- Install all devices on Heat Spreader
3- Install #8800 and #8835 for grounding. Nut up.
MOUNTING HARDWARE FOR U302/U303 AND Q203/Q205:
TOP VIEW:
U303 U302
YS#: 8871
DESC: 4-40X5/8 PAN
YS#: 3501
DESC: COMP WASHER
2 X YS#: 8921
DESC: FLAT WASHER
YS#: Z1611
DESC: HEAT SPREADER
MOUNTING HARDWARE FOR D300:
TOP VIEW:
Clip all 4 leads short on D300:
PCB ASSEMBLY DOCUMENTATION
YS#: ZC1611
DESC: HEAT SPREADER
Q205 Q203
ADD GOOP ON BOTH SIDES OF CERAMIC INSULATORS
BOTTOM VIEW:
YS#: 8800
DESC: 6-32 KEPS NUT
D300
YS#: 8837
DESC: 6-32X1/2 PAN
NO WASHER NEEDED
YS#: 8742
DESC: 4-40X3/8 TT Pan
BOTTOM VIEW:
YS#: 8902
DESC: 4-40X3/4 PAN
YS#: 8485
DESC: #6 ZINC WASHER
YS#: 4181
DESC: CERAMIC INSULATOR
IMPORTANT!
RTV INSTRUCTIONS:
ADD RTV BETWEEN:
C311, C312, C313 and C314 AFTER WAVE
SOLDER
ADD RTV
YS#: 8800
DESC: 6-32 KEPS NUT
YS#: 8835
DESC: 6-32X1/2 PAN
INSERT FROM BOTTOM
YS#: 8701
DESC: 4-40 KEPS NUT
Add RTV UNDER R303 AND R304 on the
heatspreader
IMPORTANT: Keep the resistors away
from the nearby capacitors (C312, C313)
Assembly Documentation
Section:
ES12P/ES15P/ES18P/ES21P/PSA1S/PSA2S
Product(s):
M1824 V02 01 2
PCB#: Rev#: EML Rev#: Sheet
Modified: 2020-10-28 File: Assembly.SchDoc Tmp Date:
3
Of