Replacement - HP 8560E Service Manual

Assembly Replacement
Procedure 6B. A6 Power Supply Assembly (8560E)
10.Disconnect the line-power cord from the spectrum analyzer.
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
12.Remove the three screws securing the power supply shield to the
power supply and remove the shield.
13.Remove the three screws securing the A6A1 high voltage assembly
to the A6 power supply assembly.
14.Disconnect ribbon cable A6A1W1 from A6J5 and lift the A6A1
assembly out of the way. See
15.Disconnect all cables from the A6 power supply assembly. See
3-17 on page 183.
16.Use a TORX screwdriver to remove the hardware from the shield
wall, the heatsink, and the A6 power supply assembly.
17.Remove the A6 power supply assembly by lifting from the regulator
heatsink toward front of spectrum analyzer.

Replacement

1. Ensure that the bottom shield wall is in place before replacing the
A6 power supply assembly.
2. Attach the A6 power supply assembly to the spectrum analyzer
chassis and top shield wall using the four screws.
3. Connect W1 to A6J1, W3 to A6J2, fan power wires to A6J3, W8 to
A6J4, and the line-power jack to A6J101. See
183.
4. Secure the A6A1 high voltage assembly to the A6 power supply
assembly, using three panhead screws. Connect ribbon cable
A6A1W1 to A6J5.
5. Snap post-accelerator cable A6A1W3 to the CRT assembly.
182
Figure 3-3 on page
Figure 3-17 on page
Figure 3-17 on page
162.
183.
Figure
Chapter 3