Dell Vostro 7590 - Installing the I;O Board

Steps
1 Open the latch and disconnect the I/O-board cable from the I/O board.
2 Open the latch and disconnect the ngerprint reader cable from the I/O board.
3 Disconnect the coin-cell battery cable from the I/O board.
4 Remove the three screws (M2x3) that secure the I/O board to the palm-rest and keyboard assembly.
5 Lift the I/O board o the palm-rest and keyboard assembly.
Installing the I/O board
Prerequisite
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The gure indicates the location of the I/O board and provides a visual representation of the installation procedure.
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Disassembly and reassembly