Chapter 3 211
Assembly Replacement
Procedure 14. W3 Line Switch Cable (8560E)
11.Using a small screwdriver with the shank in contact with the CRT
shield assembly, slip the tip of the screwdriver under the A6A1W3
post-accelerator cable rubber shroud and short the cable to ground
on the CRT shield assembly. See Figure 3-3 on page 162.
12.Remove the three screws securing the power supply shield to the
power supply, and remove the shield.
13.Pull the cable tie (1), Figure 3-31 on page 212, to free W9 and the
post-accelerator cables.
14.Disconnect W3 from A6J2.
15.Pull W3 up from between the power supply and the CRT assembly to
release it from the cable clamp.
16.Place the spectrum analyzer on its right side frame.
17.Fold out the A14 and A15 assemblies as described in steps 3 and 4
under "Procedure 9. A14 and A15 Assemblies Removal."
18.Loosen the screw (1) securing W3, the line switch assembly, to the
front frame. The screw is captive. See Figure 3-32 on page 213.
19.Remove A1W1 and A1W1DS1 from the line switch assembly. Let
each hang freely.
NOTE If contact removal tool, HP part number 8710-1791, is available,
complete assembly removal by performing "Removal" steps 20 and 21.
If not, skip to step 23 under "Removal."
20.With wire cutters, clip the tie wrap holding the cable to the contact
housing. From the top side of the spectrum analyzer, use contact
removal tool, HP part number 8710-1791, to remove the four wires
from the W3 connector. See Figure 3-33 on page 214.
21.Completely remove the cable from the instrument.
22.Remove the A1 front frame assembly. Remove the front panel and
A18 CRT assembly as described in steps 16 through 29 under
"Procedure 2B. A1 Front Frame/A18 CRT (8560E)."
23.Remove the left side frame from the spectrum analyzer. See Figure
3-34 on page 217. (The side frame will still be attached by the
speaker wires. Do not let it hang freely.)
24. Follow these steps to remove the line switch from the front panel:
a. gently remove the green LCD from the top-center of the line
switch assembly,
b. remove the two screws (0515-1521) that secure the line switch to
the front frame,
c. remove the screw which secures the orange and the white ground
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