Replaceable Parts - HP 3400A Operating And Service Manual

Appendix C
REFERENCE
DESIGNATION
R620
R621
R622
R623
R624
R625
R626 thru
R629
R630'
R631 and
R632
R633
R634
R635
CHANGE #8 Table 7 - 1 , Replaceable Parts:
CHANGE #9 Figure 6-4, Power Supply Schematic, and Table 7-1, Replaceable Parts:
CHANGE #10
Page 6-9/6-10 and Table 7-1:
CHANGE #11 Page 6-9.
Page 7-2.
Page 7-3.
Page 7-5.
Page 7-8.
CHANGE #12 Page 6-7.
Page 6-9.
Page 7-3.
CHANGE #13 Page 6-9.
C -6
Manual Backdating Changes Model 3400A Page 6
Table C-l. Replaceable Parts (Cont'd)
-hp-
PART NO.
0683-1245
0727-0013
0683-3925
0683-3945
0683-6835
0758-0076
Not assigned
0683-1065
0683-3335
0683-1835
0683-5605
0683-2745
Change Part No. for transformer Tl to 9100-0344.
schematic does not apply to 9100-0344 transformer.
Change value and Part No. of following components:
R701 to 56 kll, -hp- Part No. 0687-5631
R702 to 56 kll. -hp- Part No. 0687-5631
Il,
O.
R709 to 3 3 0 -hp- Part No. 0683-3315
C703 to 022 IlF. -hp- Part No. 0170-0024
Change following components:
R718 to 75 kll, -hp- Part No. 0683-7535
R730 to 1 1 kll, -hp- Part No. 0683-1135
R731 to 6 . 2 kll, -hp- Part No. 0683-6225
C3A and C3B were . 01 J.lF
Change rear panel Part No. to 03400-00202
Preferred replacement (or C3 is shown.
Change J3 to Part No. 1251-0148
Change WI to Part No. 8120-0078
Some instruments have a separate green wire
+
from 77 V to DS502 (on A5).
Substitute the �low parts locator (or A 7.
Change A7 to -hp- Part No. 03400-66507.
Substitute the below parts locator for A7.
DESCRIPTION
120 kll ±5% 1/4 W
24. 31l ±1% 1/2 W
39001l ±5% 1/4 W
390 kll ±5% 1/4 W
68 kll ±5% 1/4 W
68 kll ±5% 1/4 W (met lim)
10 Mil ±5% 1/4 W
3 3 kll ±5% 1/4 W
18 kll ±5% 1/4 W
561l ±5% 1/4 W
270 kll ±5% 1/4 W
Note: Color of leads given on
Model 3400A