Dell Latitude E5420 (Early 2011) - Manual (Page 121)

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Installing the Modem Connector
Installing the Modem Connector
1. Secure the modem connector into the routing channel on the thermal fan.
2. Replace the system board .
3. Replace the support brackets .
4. Replace the audio board .
5. Replace the bluetooth .
6. Replace the audio board .
7. Replace the display assembly .
8. Replace the ExpressCard/Smart Card/PCMCIA module .
9. Replace the palm rest .
10. Replace the processor .
11. Replace the heat sink .
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