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Palm Rest

Dell™ Inspiron™ 640M/E1405 Service Manual

  Removing the Palm Rest

  Replacing the Palm Rest

Removing the Palm Rest

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.

NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface, such as the back panel on the computer.

1. Follow the instructions in Preparing to Work Inside the Computer.
   
   
2. Remove the optical drive (see Removing the Optical Drive).
   
   
3. Remove the hinge cover (see Removing the Hinge Cover).
   
   
4. Remove the keyboard (see Removing the Keyboard).
   
   
5. Remove the display assembly (see Removing the Display Assembly).
   
   
6. Remove the microprocessor thermal-cooling assembly (see Removing the Microprocessor Thermal-Cooling Assembly).
   
   
7. Loosen the two captive screws on the modem/Mini-Card/wireless cover, then remove the cover and set it aside.
   
   

1

modem/Mini-Card/wireless cover

2

captive screws (2)

8. Remove the eleven M2.5 x 8-mm screws securing the palm rest from the bottom of the computer.
   
   

1	M2.5 x 8-mm screws (11)

9. Turn the computer over and remove the four M2.5 x 5-mm screws securing the top of the palm rest.
   
   

NOTICE: Release the locking tabs on both sides of the system board connector before attempting to remove the touch pad or LED cable. Failure to release the locking tabs could result in damage to the cable and/or the cable connector.

10. Disconnect the touch pad cable.
    
    

Use a plastic scribe to release the locking clips on both sides of the system board connector, and then gently pull to disconnect the touch pad connector from the system board connector.

11. Disconnect the LED board cable.
    
    

Use a plastic scribe to release the locking clips on both sides of the system board connector, and then gently pull to disconnect the LED board connector from the system board connector.

1	M2.5 x 5-mm screws (4)	2	LED board connector	3	locking clips
4	palm rest	5	touch pad connector

12. Moving from left to right, carefully lift the palm rest along the rear edge, near the hinge brackets, then rotate the palm rest forward to remove it from the computer.
    
    

1

palm rest

2

hinge brackets

Replacing the Palm Rest

CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.

NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface, such as the back panel on the computer.

1. Follow the instructions in Preparing to Work Inside the Computer
   
   
2. Follow the instructions in Removing the Palm Rest.
   
   
3. Align the new palm rest with the base of the computer, and then snap the palm rest into place.
   
   

NOTICE: To prevent damage to the cables or the cable connectors, ensure that the locking clips on both sides of each system board connector are firmly seated and the cables are secure.

4. Connect the touch pad cable to the system board.
   
   
5. Connect the LED board cable to the system board.
   
   
6. Replace the four M2.5 x 5-mm screws in the top of the palm rest.
   
   
7. Turn the computer over and replace the eleven M2.5 x 8-mm screws in the bottom of the computer to secure the palm rest.
   
   
8. Replace the microprocessor thermal-cooling assembly (see Replacing the Microprocessor Thermal- Cooling Assembly).
   
   
9. Replace the modem/Mini-Card/wireless cover and tighten the screws.
   
   
10. Replace the display assembly (see Replacing the Display Assembly).
    
    
11. Replace the keyboard (see Replacing the Keyboard).
    
    
12. Replace the hinge cover (see Replacing the Hinge Cover).
    
    
13. Replace the optical drive (see Replacing the Optical Drive).
    
    

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