Dell Inspiron 15 7557 Service Manual - Page 52
Removing the I/O board, Prerequisites, Procedure
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Removing the I/O board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites 1 Remove the base cover. 2 Remove the battery. 3 Follow the procedure from step 1 to step 3 in "Removing the hard drive". 4 Remove the keyboard. 5 Follow the procedure from step 1 to step 7 in "Removing the palm rest". Procedure 1 Disconnect the I/O-board power cables from the I/O board. 2 Open the latch and disconnect the I/O-board cable from the I/O board. 3 Disconnect the sub-woofer cable from the I/O board. 52