HP EliteBook 8570p, Руководство по техническому обслуживанию и ремонту

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WLAN module
Description Spare part number
HP hs2350 HSPA+ Mobile Broadband Module 668969-001
HP lt2523 LTE/HSPA+ Mobile Broadband Module 710790-001
HP lt2522 LTE/EV-DO Mobile Broadband Module 710789-001
HP un2430 EV-DO/HSPA Mini Card 702080-001
HP un2430 EV-DO/HSPA Mobile Broadband Module 634400-001
CAUTION: To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless devices
in your country or region. If you replace the module and then receive a warning message, remove
the module to restore device functionality, and then contact technical support.
Before removing the WLAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see Battery on page 81 ).
5. Remove the service cover (see Service cover on page 83 ).
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE: The WLAN antenna cable labeled “1” connects to the WLAN module “Main” terminal
labeled “1”. The WLAN antenna cable labeled “2” connects to the WLAN module “Aux” terminal
labeled “2”. If the computer is equipped with an 802.11a/b/g/n WLAN module, the yellow
WLAN antenna cable connects to the middle terminal on the WLAN module.
2. Remove the two Phillips PM2.0×3.0 screws (2) that secure the WLAN module to
the base enclosure. (The WLAN module tilts up.)
94 Chapter 4 Removal and replacement procedures