Removing and Replacing the LCD Assembly

Removing and Replacing the LCD Assembly

This procedure describes how to remove and replace the liquid crystal display (LCD) assembly mounted on the front door.
Below figure 44 shows an exploded view of the components for removing and replacing the LCD assembly.

1.  Turn off the power to the tape library by setting the power switch to off.
2.  Unlock and open the front door (see 'How to Use the Front Door Key').
3.  While supporting the front door bezel, remove the eight 4-40 Phillips-head  screws that hold the front door bezel to the door frame. Set the screws aside.
4.  Remove the front door bezel and set it aside.
5.  Close and lock the front door.
6.  Locate the LCD assembly on the front door.

     -Attention- In the following step, note the orientation of the retainer for the ribbon  cable; when you replace the connector, it is important to position the retainer  correctly (behind the ribbon cable, with the bevel facing toward the cable).

7.  Disconnect the ribbon cable from the LCD assembly by applying thumbnail pressure and carefully prying  the connector retention tabs in a downward direction.
   1.  Remove the ribbon cable connector and set it aside.
   2.  Pull the ribbon cable down to remove it from the LCD assembly.

8.  Remove the four screws that secure the LCD assembly to the door frame.

   Note: The two screws on the left side of the assembly are longer than the screws on the right side.

9.  Remove and replace the LCD assembly.
10.  Reverse the preceding steps.
11.  Adjust the display contrast (see 'Adjusting the Display Contrast').

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