A field technician needs to replace a damaged motherboard inside a modern enterprise laptop. To comply with standard hardware safety practices and prevent component damage, in what order should the technician perform the following disassembly steps?
- 1Disconnect the AC power adapter and perform a complete operating system shutdown.
- 2Attach an anti-static ESD wrist strap to a grounded chassis surface.
- 3Remove the bottom base enclosure screws and detach the lower access panel.
- 4Disconnect the internal battery connector from the motherboard header.
- 5Disconnect internal ribbon cables (keyboard, touchpad, eDP display) and remove the motherboard mounting screws.
Cevap
The proper technician workflow sequence is: 1) Disconnect AC power and shut down, 2) Attach ESD wrist strap, 3) Remove bottom chassis access panel, 4) Disconnect the main internal battery cable, 5) Disconnect internal ribbon cables and remove motherboard mounting screws.
The correct service procedure begins by cutting external AC power and shutting down the system, followed immediately by establishing anti-static ESD grounding. Once grounded, the technician removes the lower base cover to reveal internal components. Before detaching sensitive peripheral ribbons (such as the display panel cable), the internal battery MUST be unplugged to de-energize standby power rails. Finally, with power completely severed, peripheral ribbon cables and mounting screws are removed to release the motherboard.
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Anahtar Kavram
Laptop Disassembly Safety Procedure and Component Isolation Sequence