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SPECIAL PRODUCTION NOTES
1. ADD RTV BETWEEN C63 AND C123 AS SHOWN HERE.
2. FIT #8921 FLAT WASHER BETWEEN #3501 BELL WASHER AND #8667 SHOULDER
WASHER FOR Q2, Q10, U30 AND U31
3. ENSURE THAT #5862 CAP LEADS ARE PROPERLY INSERTED
(DO NOT PUT LEADS INTO RTV HOLES!)
4. ADD AMPLE RTV UNDER ENTIRE BASE OF OUTPUT COIL L1
5. MOUNT Q14 AND Q15 ON #4181 CERAMIC INSULATORS WITH GOOP IN BETWEEN AND
ALSO GOOP IN ON BOTH SIDES OF SILPAD 3884. TO BE APPLIED AS THIN AS POSSIBLE.
DETAIL FOR Q14 AND Q15
THIS SHEET CONTAINS SPECIAL PRODUCTION NOTES AND A LIST OF PCB HARDWARE PARTS REQUIRED FOR THE BUILD.
PCB ASSEMBLY DOCUMENTATION
DETAIL FOR Q1 AND Q12
#8871 4-40 X 1/2"
#3501 BELL WASHER
#3884 SIL PAD
HEATSPREADER
#8701 4-40 KEPS NUT
TORQUE 4 INCH/LB
DETAIL FOR U30 YS# 6872
#3501 BELL WASHER
TO-220 THIN BODY
#3884 SIL PAD
HEATSPREADER
TO247
#8741 4-40 X 1/2"
If #6872 is subbed with a thicker
version then use fastener 8871
#8921 WASHER
#8667 SHOULDER WASHER
PCB
#8701 4-40 KEPS NUT
TORQUE 4 INCH/LB
PCB HARDWARE
8667
8667
8667
8667
X 4
3501
3501
3501
3501
3501
3501
X 6
8921
8921
8921
8921
8921
8921
8921
8921
HW6
HW10
8701
8701
8701
8701
8701
8701
8701
8701
X 8
HW7
HW1
HW8
HW13
HW9
HW31
HW5
HW14
HW4
HW32
HW11
HW15
HW29
HW12
HW16
HW30
HW17
HW18
HW21
HW19
HW22
HW20
HW23
HW25
HW26
THERMAL PAD
THERMAL PAD
THERMAL PAD
4181
4181
3884
X 2
X 5
8871
8871
8871
8871
8871
HS3
HS2
HS1
XC7
XC8
SNAP-IN SPACERS
2 x #3751
DETAIL FOR Q2, Q10, U31 THICK BODY VERSION
#8871 4-40 X 1/2"
#3501 BELL WASHER
#8921 WASHER
#8667 SHOULDER WASHER
TO-220 THICK BODY
#3884 SIL PAD
HEATSPREADER
#8701 4-40 KEPS NUT
TORQUE 4 INCH/LB
Assembly Documentation
Section:
NX55P-2
Product(s):
PCB#:
M2256
Rev#:
Modified:
2022-11-22
File:
8485
8485
X 2
X 4
HW2
HW3
HW28
HW27
HW24
8741
8902
8902
X 2
ZC453
PCB
V01
Eng:
T. Wood
Sheet
2
Of
3
Assembly.SchDoc
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