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Fan

Dell™ Latitude™ D420 Service Manual

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

CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.

NOTICE: Handle components and cards by their edges, and avoid touching pins and contacts.

1. Follow the instructions in Before You Begin.
   
   
2. Remove any installed PC Cards from the PC Card slot.
   
   
3. Remove any installed memory modules or Mini PCI cards (see Memory and Mini-Cards).
   
   
4. Remove the hard drive (see Hard Drive).
   
   
5. Remove the hinge cover (see Hinge Cover).
   
   
6. Remove the keyboard (see Keyboard).
   
   
7. Remove the internal card with Bluetooth® wireless technology (see Internal Card With Bluetooth® Wireless Technology).
   
   
8. Remove the display assembly (see Display Assembly).
   
   
9. Remove the palm rest (see Palm Rest) and lay it aside.
   
   
10. Remove the system board (see System Board) and remove the fan connector from the top of the system board.
    
    
11. Turn the system board upside down.
    
    

NOTICE: Ensure that you have moved any cables out of the way before you lift away the fan.

12. Loosen the three captive screws from the fan, and lift the fan away from bottom of the system board.
    
    

1	modem cable	2	captive screws (3)	3	bottom of system board
4	fan assembly	5	fan connector on top of the system board

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