14-12 Chapter 14
Assembly Replacement and Post-Repair Procedures
Display, Display Lamp and Inverter Assemblies (A18, A27)
Display, Display Lamp and Inverter Assemblies
(A18, A27)
Tools Required
• T-10 TORX screwdriver
• T-15 TORX screwdriver
• small slot screwdriver
• ESD (electrostatic discharge) grounding wrist strap
• #0 Phillips Screwdriver
Removal
1. Remove the front panel assembly (refer to “Front Panel Assembly” on page 14-8).
2. Refer to Figure 14-5. Disconnect the cables (items 2, 3 and 4) by performing the
following steps:
a. Disconnect cable (item 2) from the inverter (A27). Slip item 2 out of both of its cable
clamps.
b. Disconnect item 4 from the inverter (A27).
c. Disconnect item 3 from the keyboard interface board (A2).
3. Remove the two screws (item 8) that attach the inverter (A27) and inverter cover (A28)
to the mounting plate (item 7). Note that this also allows the inverter cover to be
separated from the inverter.
4. Remove the three screws (item 1) along the bottom edge of the mounting plate.
5. Swing the bottom edge of the mounting plate up as shown, then pull it away from the
display. The display can now be removed from the front panel.
NOTE The bottom half of Figure 14-5 depicts the rear view of the A18 assembly with
the mounting plate removed. Use the location of the display lamp cable
(item 4) to aid in orientation.
6. Remove the two screws (item 5) that attach the lamp to the display. Detach the lamp
from the display by pulling it down, then up, as shown.
Replacement
1. Reverse the order of the removal procedure.
2. Be sure to route ribbon cable 2 through both cable clamps.
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