Chapter 3 161
Assembly Replacement
Procedure 2B. A1 Front Frame/A18 CRT (8560E)
11.Connect one end of a wire clip lead to a small screwdriver having a
conductive shank and tip. Connect the other end of the clip lead to
the CRT shield assembly as shown in Figure 3-3 on page 162. Hold
the insulated screwdriver handle and slip the tip of the screwdriver
under the rubber shroud of the A6A1W3 post-accelerator cable,
shorting the cable to ground through the CRT shield assembly. See
Figure 3-3 on page 162.
12.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.
13.Pry out the black grommet protecting post-accelerator cable
A6A1W3 from the CRT shield assembly.
14.Carefully unsnap the A6A1W3 post-accelerator cable from the CRT
and discharge it by shorting the cable to chassis ground on the CRT
shield assembly.
15.Place the spectrum analyzer on its right side frame with the front
frame assembly hanging over the front edge of the workbench.
16.Fold out the A14 and A15 assemblies as described in steps 3 and 4
under "Procedure 9. A14 and A15 Assemblies Removal."
WARNING The voltage potential at A6A1W3 is +9 kV. Failure to discharge
A6A1W3 correctly may result in severe electrical shock to
personnel and damage to the instrument.