IBM 2179, 6643 manual LCD Receiver card removal

Notes:

vProtect the LCD panel from being scratched.

vLay the LCD panel down on a flat clean surface over a cloth or other soft material that will protect it from being scratched.

vBe careful not to allow other items to come close to the LCD panel as those items might touch the panel and scratch it.

Note:

The number of defective pixels to qualify a TFT LCD panel to be replaced under warrant is 8 or more for all types 2179 and 6643 computers.

1.Remove the rear bucket housing, see “Rear bucket housing (rear cover) removal” on page 21.

2.Remove the four corner screws securing the bezel to the LCD housing assembly.

3.Gently pull the bezel from the LCD housing. Note the plastic tabs on the bezel.

4.Unplug the top and bottom LCD connectors from the power inverter card.

5.Remove the four corner screws from the front of the LCD panel to remove the LCD panel to remove the LCD panel.

6.As you remove the LCD panel, feed the cables through the holes on the LCD housing assembly.

7.Unplug the cable to the Receiver card.

8.The LCD panel can now be removed.

LCD Receiver card removal

1.Perform the previous LCD removal procedure, see “LCD removal” on page 32.

2.Remove the two screws from the receiver card being careful to keep the plastic screw washers and the plastic stand-offs.

3.Lift up on the receiver card to unplug it from the LCD panel.

Chapter 4. FRU replacements 33