Control Panel Separation - Fluke Calibration 4322-SYS-NAVAIR Service Manual

4322
Service Manual
Reinstall the chassis and control panel as follows (see Figure 4-3). Skip step 1 if the
control panel was not removed.
1. Reinstall the control panel on the chassis as follows (see Figure 4-4):
2. Install the chassis into the case as follows (see Figure 4-3):

Control Panel Separation

If required for individual part replacement, separate the control panel from the chassis as
follows (see Figure 4-4):
1.
2.
3.
4.
5.
6.
7.
8.
9.
4-10
a. Connect the keypad ribbon cable () and feed the display ribbon cable () and
the backlight power cable () through the control panel ().
b. Carefully put the control panel () on top of the chassis ().
c. With the display propped open, connect the display ribbon cable () and the
backlight power cable () on the rear of the display.
d. Connect the atmosphere vent tube () on the control panel ().
e. Install the four screws that secure the supply tube-weld () and the output tube-
weld () to the manifold.
f. Install the four screws and washers () that secure the handles to the control
panel ().
g. Install the six screws () that secure the control panel () to the chassis ().
a. Use the handles to put the chassis () into the case ().
b. Install the eight control panel assembly screws ().
Use the instructions in "Pressure Transducers and Barometer" on page 4-26 to
remove the pressure transducers and barometer.
Remove the two screws () that secure the control panel () to the chassis.
Remove the four screws and washers () that secure the handles to the control panel
().
Remove the six screws and washers () that secure the electronics cover/power
supplies () then remove. To fully remove the cover, disconnect the cable from
(J14) of main PCA and remove (P4) and (P5) on power supply to allow removal of
the electronics cover/power supplies (see Figure 4-5).
Disconnect the following cables from main PCA (see Figure 4-5):
a. Gently pry or flip up the elongated locking bar at the bottom of the connector to
disconnect the display ribbon cable from (J9) on the main PCA. Slide the ribbon
cable out and away.
b. Disconnect the display power cable from (J7) on the main PCA.
c. Remove anti-vibration cover then disconnect the keyboard cable from (J16) on
the main PCA.
d. Remove anti-vibration cover then disconnect the communication box cable from
(J11) on the main PCA.
e. Disconnect the CPS dock VH2 cable from (J6) on the main PCA.
f. Disconnect the CPS isolation valve VH3 cable from (J8) on the main PCA.
Remove the pump bracket assembly (). See "Pump Bracket" on page 4-16.
Remove the communications box (not shown) to allow access to the CPS isolation
valve. See "Communications Box" on page 4-24.
Remove the CPS NC isolation valve on the CPS dock. See "CPS Dock and NC
Isolation Valve" on page 4-29.
Disconnect the N, L, G wires () on the power entry module shown in Figure 4-6.