HP 7970B Operating And Service Manual page 75

7970B/7970C
Replaceable Parts
FIGURE
UNITS
&
PART
DESCRIPTION
PER
INDEX
NUMBER
2 3 4 5
ASSY
NO.
1
6-13- 07970-62024 REEL SERVO PC ASSEMBLY A7 REF
-1
0683-1035 RESISTOR, fxd, 10k, 5%, 1/4W (R19, R38, R54, R55)
4
-2
0761-0058 RESISTOR, fxd, 750 ohms, 5%, 1W (R11, R13, R30, R32)
4
-3 0757-0401 RESISTOR, fxd, 100 ohms, 1/8W (R12, R31)
2
-4 0698-3637 RESISTOR, fxd, 820 ohms, 2W (R8, R27)
2
-5 0683-1025
RESISTOR, fxd, 1k, 1/4W (R9, R10, R15, R28, R29, R34, R43, R46, . 10
R100, R101)
-6 0698-3159 RESISTOR, fxd, 26.1k, 1%, 1/8W (R2, R21)
2
-7 0698-3458 RESISTOR, fxd, 348k, 1%, 1/8W (R1, R5, R6, R20, R24, R25) .
6
-8 0683-1015 RESISTOR, fxd, 100 ohms, 1/4W (R3, R4, R22, R23).
4
-9 0757-0289
RESISTOR, fxd, 13.3k, 1%, 1/8W (R47, R105) 2
-10 0757-0442
RESISTOR, fxd, 10k, 1%, 1/8W (R49, R51) 2
-11 0686-1035
RESISTOR, fxd, 10k, 1/2W (R44, R45) .
2
-12
2100-1759 RESISTOR, var, 2k, 5% (R104, R106)
2
-13
0757-0869 RESISTOR, fxd, 681 k (R39, R41)
2
-14 0757-0278 RESISTOR, fxd, 1.78k, 1%, 1/8W (R48, R53)
2
-15 0698-3113 RESISTOR, fxd, 100 ohms, 1/8W (R14, R17, R33, R36) .
4
-16 0757-0198 RESISTOR, fxd, 100 ohms, 1/2W (R18, R37)
2
-17 0757-0797
RESISTOR, fxd. 90.9 ohms, 1/2W (R7, R26) 2
-18
0775-0199 RESISTOR, fxd, 21.5k, 1 %, 1/8W (R50).
1
-19 0811-2048
RESISTOR, fxd, 0.25 ohm, 25W (R40, R42)
2
-20 0160-0153 CAPACITOR, fxd, 0.001 J..IF, My (C7, C8, C18, C19) 4
-21 1854-0022 TRANSISTOR, NPN, Si, 2N2102 (01,05) 2
-22 1855-0052
TRANSISTOR, field effect, 2N4360 (014, 015) 2
-23 1853-0080 TRANSISTOR, 2N4888 (02,06).
2
-24 0160-2055 CAPACITOR, fxd, 0.01 J..IF, cer (C2, C3, C13, C14) 4
-25 1902-0048 DIODE, breakdown, 6.81 V (CR3, CR4)
2
-26 0160-0380 CAPACITOR, fxd, 0.22 J..IF, My (C1, C12)
2
-27 0160-2199 CAPACITOR, fxd, 30 pF, mica (C4, C5, C15, C16). 4
-28
1820-0223 INTEGRATED CIRCUIT, operational amplifier (U1, U2) . 2
-29 0150-0121
CAPACITOR, fxd, 0.1 J..IF, cer (C21, C22) 2
-30 1901-0040 DIODE, Si, 30V, 30 mA (CR1, CR2, CR5, CR7, CR8) .
5
-31 1854-0215 TRANSISTOR, NPN, Si, 2N3904 (013) .
1
-32
0490-0890
SOCKET, relay (XK1)
1
-33
2200-0147 SCREW, no. 4-40, 0.5-inch, pozi (AP). 2
-34 3050-0105
WASHER, flat (AP) .
2
-35 2260-0009 NUT, hex, no. 4-40 (AP) 2
-36 0490-0891 RELAY, 10A (K1) 1
-37 1853-0204 TRANSISTOR, PNP, Si, 2N4920 (03, 07) 2
-38 2200-0147 SCREW, no. 4-40, 0.5-inch, pozi (AP).
1
-39 3050-0105 WASHER, flat (AP) .
1
-40 2260-0009 NUT, hex, no. 4-40 (AP)
1
Part 2 6-37