HP 7970B Operating And Service Manual page 37

7970B/7970C
Replaceable Parts
FIGURE
UNITS
&
PART
DESCRIPTION
PER
INDEX NUMBER
ASSV
NO. 1
2 3 4 5
6-1-77 07970-60580
MAGNETIC TAPE HEAD ASSEMBLY A 1, 9-track, write/read, 21 - 45 ips.
1
(see figure 6-9 for details)
07970-60581
MAGNETIC TAPE HEAD ASSEMBLY Al, 7-track, write/read, 21 - 45 ips.
1
(see figure 6-9 for details)
07970-60582
MAGNETIC TAPE HEAD ASSEMBLY Al, 9-track, read, 21 -45 ips
1
(see figure 6-9 for details)
07970-60583
MAGN ETIC TAPE HEAD ASSEMBLY A 1, 7-track, read, 21 - 45 ips 1
(see figure 6-9 for details)
07970-60584
MAGN ETiC TAPE HEAD ASSEMBLY A 1, 7-track, write/read, 10 - 20.9 ips
1
(see figure 6-9 for detai Is)
07970-62031
MAGNETIC TAPE HEAD ASSEMBLY A 1, 9-track, write/read, 10- 20.9 ips 1
(see figure 6-9 for details)
07970-60586
MAGNETIC TAPE HEAD ASSEMBLY Al, 7-track, read, 10 - 20.9 ips 1
(see figure 6-9 for details)
07970-60587 MAGNETIC TAPE HEAD ASSEMBLY A 1, 9-track, read, 10 - 20.9 ips
1
(see figure 6-9 for detai Is)
07970-60588
MAGN ETIC TAPE HEAD ASSEMBL Y A 1, 7/9-track, read/read, 10 - 20.9 ips. 1
(see figure 6-9 for details)
07970-60589
MAGN ETIC TAPE HEAD ASSEMBLY A 1, 7/9-track, read/read, 21 - 45 ips 1
(see figure 6-9 for details)
-78 2190-0034
WASHER, lock, helical (AP) 3
-79 3030-0038 SCR EW, no. 10-32, 0.5-inch, socket head (AP)
3
-80 07970-62087 DENSITY SELECT SWITCH ASSEMBLY A 12, read, write/read (refer to part 3) 1
07970-62088
DENSITY SELECT SWITCH ASSEMBLY A 12, read/read (refer to part 5) 1
-81 2190-0034
WASHER, lock, helical (AP) 2
-82 2680-0129 SCR EW, no. 10-32, 0.132-i nch, pozi (AP) 2
-83 07970-62086
UN IT ADDR ESS SWITCH ASSEMBLY A 13 (see figure 6-10 for details) 1
-84 2190-0034 WASHER, lock, helical (AP)
2
-85 2680-0129
SCREW, no. 10-32, 0.132-inch, pozi (AP) 2
-86 07970-60600 TRANSPORT HARNESS ASSEMBL Y W2 (see figure 6-11 for details and 1
attaching parts)
-87 07970-62172 CAPSTAN SERVO PC ASSEMBLY A9 (see figure 6-12 for details) 1
-88 2190-0034
WASHER, lock, helical (AP)
3
-89 2190-0312
WASHER, fiber (AP) 3
-90 2680-0101 SCREW, no. 10-32, 0.438-inch, pozi (AP) 3
-91 07970-20680
GUIDE, lifter 1
-92 2680-0118 SCREW, no. 10-32, 0.5-inch, pozi (AP) 2
-93 07970-62024
REEL SERVO PC ASSEMBLY A7 (see figure 6-13 for details)
1
-94 2190-0312 WASHER, fiber (AP) 3
-95 2190-0034 WASHER, lock, helical (AP) 3
-96 2680-0101
SCREW, no. 10-32, 0.438-inch, pozi (AP) 3
-97 1390-0228
PANEL FASTENER 1
-98 2190-0034 WASHER, lock, helical (AP) 2
-99 2680-0099
SCREW, no. 10-32, 0.375-inch, pozi (AP) 2
-100 07970-60230
WR ITE ASSEMBLY A 17 (refer to part 4)
1
-101 2190-0085 WASHER, lock, helical (AP) 5
-102 3050-0016
WASHER, flat (AP) .
5
-103 2360-0195 SCREW, no. 6-32, 0.312-inch, pozi (AP) . 5
-104 07970-60900 RIBBON CABLE ASSEMBLY (write/read units only) 1
07970-60890 RIBBON CABLE ASSEMBLY (read units only).
1
-105 07970-60390
READ ASSEMBLY A 18 (refer to part 3)
1
07970-62003 READ/READ ASSEMBLY A18 (refer to part 5) 1
-106 2190-0085
WASHER, lock, helical (AP)
5
-107 3050-0016 WASHER, flat (AP) . 5
-108 2360-0195 SCREW, no. 6-32, 0.312-inch, pozi (AP) . 5
Part 2
6-7