Safety and warranty information for the Lenovo SP40M52174 computer, including laser, battery, and compliance warnings.
This guide provides important safety and legal information for the Lenovo SP40M52174 computer. It covers laser product warnings, plastic bag and button‑cell battery hazards, headphone usage limits, and regional compliance statements such as RoHS, WEEE, and radio regulations.
The document also explains how to access electronic user manuals, view warranty details, obtain technical support, and recycle the device responsibly. Links to Lenovo support sites and QR‑code instructions are included for quick reference. This manual is written in Chinese.
| Maximum headphone output voltage (RMS) | 150 mV |
|---|---|
| Frequency‑band headphone voltage limit | 75 mV |
| Battery type | Button‑cell lithium battery |