A field technician replaces a damaged LCD display panel on a laptop. After reassembling the display bezel and lid enclosure, the screen displays a clear image. However, the user notices that the laptop can no longer maintain a stable wireless network connection unless placed right next to the access point. Which of the following is the most likely cause of this issue?
- The Wi-Fi antenna wires routed inside the display bezel were pinched or disconnected during reassembly.Cevap
- BThe display inverter board was installed upside down, causing electromagnetic interference with the wireless card.
- CThe video ribbon cable lacks adequate bandwidth to transmit both display signals and wireless network data.
- DThe glass digitizer layer was misaligned, blocking RF radio frequencies from entering the screen assembly.
Cevap
The Wi-Fi antenna wires routed inside the display bezel were pinched or disconnected during reassembly.
Laptop Wi-Fi antenna leads are routed up through the display hinges and embedded around the frame of the screen assembly to maximize signal reception. If these delicate cables are pinched, severed, or detached during a panel replacement, the Wi-Fi card loses signal range drastically.
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Laptop Display Assembly Wire Routing and Wi-Fi Antenna Harnesses