Procedure 2A. A1 Front Frame/A18 Lcd (8560Ec); Removal Of The Front Frame - HP 8560E Service Manual

Assembly Replacement

Procedure 2A. A1 Front Frame/A18 LCD (8560EC)

Procedure 2A. A1 Front Frame/A18 LCD
(8560EC)

Removal of the Front Frame

1. Remove the spectrum analyzer cover assembly as described in
"Procedure 1. Spectrum Analyzer Cover." Place the instrument on
its side, with the display section upper-most, as shown in
on page 149.
2. Fold out the A2, A3, A4, and A5 assemblies as described in steps 2
through 6 under "Procedure 5. A2, A3, A4, and A5 Assemblies
Removal." Facing the front panel, the A2, A3, A4, and A5 assemblies
will lay to your left.
3. Fold out the A14 and A15 assemblies as described in steps 3 through
4 under "Procedure 9. A14 and A15 Assemblies". Facing the front
panel, the A14 and A15 assemblies will lay to your right.
4. Disconnect ribbon cable A1A1W1, which connects HDR1 on the A1
front frame assembly and A3J602 on the A3 interface board.
5. Disconnect the following cables from the A2 controller board:
a. Ribbon cable W60, which connects J8 on the A2 controller board
with J1 on the A17 display driver board.
b. W61, which connects J9 on the A2 controller board with J7 on the
A17 display driver board.
6. Disconnect ribbon cable W64 from the J1 VGA port on the rear panel
(do not disconnect W64 from the A17 display driver board).
7. Disconnect the W3 line switch cable from the power supply.
a. Remove the power supply cover. Use a T-6 TORX driver to remove
the 3 screws (0515-2309) that secure the power supply cover to
the power supply.
b. Remove the line switch connector from A6J2 on the power supply.
c. Loosen FL 1. Remove the two screws (0515-2332) which are used
to secure FL 1 to the right side of the chassis.
d. After FL 1 has been loosened, route the W3 line switch cable
through the opening behind FL 1, from the left to the right side of
the instrument (if you still have difficulty routing W3 through the
opening, use an open ended 5/16-inch wrench to further loosen, or
disconnect FL 1).
To disconnect the line switch from the front panel, see Removal of
the Line Switch from the Front Panel on
150
Figure 3-1
page 153.
Chapter 3