Chapter 3 153
Assembly Replacement
Procedure 2A. A1 Front Frame/A18 LCD (8560EC)
10.Carefully lift the display driver backplate over the two backlight
cables and the W63 ribbon cable.
11.Remove the LCD assembly from the black rubber mount Take care
not to damage the backlight cables or W63 ribbon cable.
12.To remove the glass plate, first remove the LCD display from the
display mount. Carefully remove the glass from the inside of the
display mount.
NOTE The LCD glass plate was originally placed in the LCD assembly in a
clean room environment to ensure optimal performance of the LCD
display. Take all possible precautions to ensure that the glass plate is
clean before replacing it in the LCD assembly.
Removal of the Backlights
1. Remove the LCD assembly by following steps 1 through 12 in
“Removal of the Display Driver Board, Inverter Board, and LCD” on
page 152.
2. Remove each backlight cable assembly (2090-0380). Carefully grasp
the end of the metal backlight assembly, which is connected to the
backlight cable, and pull the backlight out from its slot. The
backlight cable slots are located at the top and at the bottom of the
LCD.
NOTE Whenever there is a need to replace a single backlight, both backlights
must be replaced.
Removal of the Line Switch from the Front Panel
After the A1 front frame assembly, the A17 display driver, and the A18
LCD have been removed, you can proceed to remove the line switch.
Follow these steps:
1. Remove the green LED from the line switch assembly on the front
frame, by gently pulling on the orange and black cables (wrapped in
shrink tubing), to which the LED is connected.
2. Remove the two screws (0515-1521) that secure the line switch to the
front frame.
3. Remove the screw (0515-0430) that secures the striped green and
white ground cable to the line switch.
4. Remove the line switch from the front panel.
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