186 Chapter3
Assembly Replacement
Procedure 7. A6A1 High Voltage Assembly (8560E only)
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.Pry out the black grommet protecting post-accelerator cable
A6A1W3 from the CRT shield assembly.
13.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.
14.Remove the three screws securing the power supply shield to the
power supply and remove the shield.
15.Remove the three screws securing the A6A1 high voltage assembly
to the A6 power supply assembly.
16.Disconnect ribbon cable A6A1W1 from A6J5. See Figure 3-17 on
page 183.
17.For Option 007 spectrum analyzers: Remove the two screws (1)
securing two board-mounting posts to the left side frame and remove
the posts. See Figure 3-19 on page 187.
18.Remove the two left side frame screws (2) securing the A17 assembly
(and A16 assembly in Option 007). For Option 007 spectrum
analyzers: Lift up the A16 FADC assembly and swing it out of the
spectrum analyzer. Do not remove any cables.
19.Lift up the A17 CRT driver assembly and disconnect A6A1W2 from
A17J6. Do not remove any other cables from the A17 assembly.
20.Disconnect the tie wraps from the A6A1 assembly cables and remove
the A6A1 high voltage assembly from the spectrum analyzer.
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