HP 7970B Operating And Service Manual page 56

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7970B/7970C
Replaceable Parts
FIGURE
UNITS
&
PART
DESCRIPTION
PER
INDEX
NUMBER
1
2 3 4 5
ASSY
NO.
6-10-
07970-62086
UNIT ADDRESS SWITCH ASSEMBLY A13
REF
-1
07970-60360
LENS BLOCK ASSEMBLY, unit address switch.
1
-2
0624-0077
SCREW, tapping, no. 440, 0.312-inch, pozi (AP)
1
-3
2190-0416
WASHER, flat (AP) .
2
-4
07970-601 00
UNIT ADDRESS PC ASSEMBLY.
1
-5
0757-0280
RESISTOR, fxd, 1k,1%,1/8W (R1, R2, R3, R4)
4
-6
1820-0054
INTEGRATED CIRCUIT, 7400N (U1, U2)
2
-7
1820-0348
INTEGRATED CIRCUIT, 844 (U3)
1
-8
0160-0161
CAPACITOR, fxd, My, 0.01 J.lF, 1 0%(C1 )
1
-9
0757-0428
RESISTOR, fxd,1.62k,1%,1/8W (R6, R8, R10, R12).
4
-10
0757-0418
RESISTOR, fxd, 619 ohms, 1%,1/8W (R5, R7, R9, R11) .
4
-11
1901-0040
DIODE,Si (CR1, CR2, CR3, CR4)
4
-12
2140-0209
LAMP, 14V, 0.08A (DS1 thru DS5)
5
-13
Ref. Only
SWITCH ASSEMBLY (51 thru 55) (not field replaceable) .
1
Part 2
6-25/6-26

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