Agilent Technologies 856290216 service manual Front frame Mounting Screws

Procedure 2. Al Front Frame/Al8 CRT

connectors and cover the tip with heatshrink tubing or tape to avoid scratching the enameled front panel.

23.Loosen screw (3) securing the line-switch assembly to the front frame. This is a captive screw and cannot be removed from the line-switch assembly. See Figure 4-3.

24.Gently remove the line-switch assembly, using caution to avoid damaging AlWl and power indicator LED AlWlDSl.

25.Remove AlWl and AlWlDSl from the line-power switch assembly.

26.Remove the three screws (1) securing the front frame assembly to the right side frame of the spectrum analyzer. See Figure 4-4.

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Figure 4-4. front frame Mounting Screws

27.Remove the three screws securing the front frame assembly to the left side frame of the spectrum analyzer.

28.Remove the four screws (1) (Figure 4-3) securing the CRT mounts to the deck.

29.Pull the cable tie (1) to free W9. See Figure 4-5. Gently pry W9, the CRT cable, from the end of the CRT assembly.

30.Support the Al8 CRT assembly while gently pulling the front frame and CRT out of the spectrum analyzer 1 or 2 inches.

31.Disconnect A18W1, the trace align wires, from A17J5. Remove the front frame and CRT assemblies.

32.Gently pull the CRT assembly off of the front frame assembly.

Assembly Replacement 4-9