YORKVILLE NX55P, Service Manual

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B
B
CH1254 CH1254E CH1254
N.A.
#2410
F4A
CE
#2470
F2A
N.A.
#2410
F4A
CE
#2482
F3.15A
FUSE F1
WITHOUT CROWBAR WITH CROWBAR
TRANSFORMER CH1254E
C61
R143
R90
33N - YS#5222
15K - YS#4979
301R - YS#6150
C146
C59
C145
R116
R144
R104
27N - YS#5215
68N - YS#5226
18N - YS#5207
1K - YS#4934
180R - YS#4819
510R - YS#4691
5 WATT
NEO DRIVER
YS#7461
47N - YS#5224
6K19 - YS#4717
270R - YS#4986
68N - YS#5226
47N - YS#5224
33N - YS#5222
100R - YS#4921
681R - YS#4743
270R - YS#4986
SEE LAYOUT DIAGRAM
CERAMIC DRIVER
YS#7527
5. LEADS FOR 5 WATT RESISTORS MUST BE BENT ON THE MACHINE
4. ADD AMPLE RTV UNDER ENTIRE BASE OF OUTPUT COIL L1
8. M1309 PARTS REFERENCE TABLE
6. FIT #8921 FLAT WASHER BETWEEN #3501 BELL WASHER AND #8667 SHOULDER
WASHER FOR Q2, Q10, U30 AND U31
7. PCBSA: ENSURE THAT #5862 CAP LEADS ARE PROPERLY INSERTED
(DO NOT PUT LEADS INTO RTV HOLES!)
**************IMPORTANT******************
LEAD LOOP MUST NOT BE ABOVE TOP OF RESISTOR
M1309 PRODUCTION NOTES
1. R90, R104, R116, R143, R144, C59, C61, C145, C146 HAVE UPDATED
VALUES FOR THE 7527 CERAMIC DRIVER AS PER PC8300.
SEE TABLE BELOW FOR DETAILS.
3.MAKE SURE TO RTV ALL LARGE CAPACITORS TO SOMETHING CLOSE
2. NOTE THAT THERE ARE SEVERAL LINES ON THE DSBOTMASK LAYER.
THESE MAY BE USED FOR MARCONI TEST POINTS SO HAVE THIS LAYER
ON IF DOING ANY MODIFICATIONS.