This document describes the features and characteristics of Philips smart lighting products
This manual introduces safety precautions, proper handling of power supplies, battery care, and environmental requirements for GreatWall laptops. It also explains how to install optional components, connect external devices, and perform basic maintenance.
The document includes a detailed specification table covering CPU, memory, display, ports, networking, power adapter, dimensions and weight, as well as a troubleshooting section for common issues such as keyboard lock, black screen, and audio problems. This manual is written in Chinese.
| CPU | Intel N455 1.66 GHz or Intel N550 (dual‑core, four‑thread) |
|---|---|
| System Memory | DDRII SO‑DIMM, 1 GB or 2 GB |
| Power Adapter | Input 100‑240 V, 50‑60 Hz; Output 19 V, 2.1 A |
| Weight | ≈1.25 kg (including battery) |
Press Fn + Num Lock; the numeric lock indicator will turn off.
Press the Fn key combination to change the display mode and ensure the LCD is not turned off or in sleep mode.
Only use the power adapter supplied by GreatWall and match the voltage switch to the local mains voltage.
Check and clean the laptop at least every three months, removing dust from vents, fans and internal components after powering off and unplugging.