To remove the top assembly, follow these steps:

1.Remove the LCD panel.

See “LCD Panel” found earlier in this chapter.

2.Remove the keyboard.

See the previous section, “Keyboard.”

3.Remove side screws SD1 and SD2.

4.Disconnect the touch pad connector.

Use a small flat-blade screwdriver to release the connector from the main board.

5.Separate the top assembly from the bottom assembly.

Insert your fingertips or a scribe in the crevice between the top assembly and the bottom assembly, and lift up on the top assembly to release the hid- den tabs spaced around the sides, front, and back.

When replacing the top assembly, orient the assembly in its original position on the bottom assembly and press firmly near each tab until the hidden tabs snap into place.

6.Disconnect the status-display board connector.

Use a small flat-blade screwdriver to release the connector from the main board. Release the wire bundle from the hook on the I/O bracket.

7.Remove the power supply board.

8.Disconnect the LCD flex-cable connector on the main board.

Remove flex-cable screws SD3 and SD4. There is a ground wire attached to screw SD4.

CAUTION: Do not attempt to remove the LCD flex cable from the top assembly. The two connectors on the cable will not pass through the slot on the back of the top assembly.

9. Remove the top assembly from the computer.

Removing and Replacing Parts 4-33

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Dell LM P-133ST manual Remove the keyboard, Separate the top assembly from the bottom assembly