Dell Vostro A90 Bedienungsanleitung PDF herunterladen (Seite 34)

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 System Board

Dell™Vostro™A90ServiceManual

Removing the System Board

Replacing the System Board

Setting the Keyboard Matrix

Updating Service Tag

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Removing the System Board

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1. Follow the instructions in Before You Begin.

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2. Remove the module cover (see Removing the Module Cover).

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3. Remove the memory module (see Removing the Memory Module).

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4. Remove the solid-state drive (see Removing the Solid-state Drive).

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5. Remove the keyboard (see Removing the Keyboard).

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6. Remove the palm rest (see Removing the Palm Rest).

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7. Disconnect the display cables, Mini-Card antenna cables, and speaker cable from the respective system board connectors (see Display Assembly).

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8. Disconnect the microphone cable and AC adapter cable from the respective system board connectors.

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9. Remove the two screws that secure the system board to the computer base.

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10. Lift the system board at an angle towards the side of the computer and out of the computer base.

Replacing the System Board

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CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best

practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface

(such as the back panel) on the computer.

screw (2)

system board

microphone cable connector

AC adapter cable connector

NOTE: The thermal pads may stick to the bottom of the palm rest. Remove the thermal pads from the bottom of the palm rest.

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Dell Vostro A90 Bedienungsanleitung Seite 34