A technician completes the replacement of a laptop's upper display assembly following physical damage to the top shell. After reassembling the laptop, the technician powers on the device and verifies that the LCD panel renders video clearly and touch inputs function accurately. However, the laptop experiences severe wireless signal degradation and cannot maintain a connection to local access points unless placed directly next to the router. Which display component did the technician most likely fail to reconnect during reassembly?
- The Wi-Fi antenna harness wires routed around the LCD bezelAnswer
- BThe backlight inverter board mounted behind the lower display bezel
- CThe touch digitizer ribbon cable attached to the display controller
- DThe main eDP display data cable routed from the motherboard
Answer
The Wi-Fi antenna harness wires routed around the LCD bezel
Modern laptops route micro-coaxial Wi-Fi antenna wires through the display hinges and around the top display bezel to provide elevated, unobstructed wireless coverage. If a technician replaces the display assembly but fails to reconnect these antenna leads to the internal wireless network card, the laptop relies solely on the tiny connectors on the card itself, resulting in extremely weak signal strength.
Step-by-Step Solution
Key Concept
Laptop Display Component Integration and Antenna Routing