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USB board and internal display switch
NOTE: The internal display switch module is included in the Cable Kit, spare part number 507708-001.
Description Spare part number
USB board 506336-001
Before removing the USB board, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC Adapter from the computer.
4. Remove the battery (see
Battery on page 37).
5. Remove the following components:
a. Keyboard (see
Keyboard on page 40).
b. Hard drive (see
Mass storage devices on page 42).
c. Top cover (see
Top cover on page 45).
d. Fan (see
Fan on page 59).
Remove the USB board:
1. Disconnect the internal display switch cable (1) from the USB board.
2. Remove the Phillips PM2.0×3.0 screw (2) that secures the DC jack bracket to the base enclosure.
3. Remove the DC jack bracket (1) and USB board (2) from the base enclosure.
Component replacement procedures 61