The TCL NT21F3N television manual covers the basic operation of the set, including power on/off, channel selection, picture and audio adjustments, and the use of built‑in functions such as the calendar, radio, games, and phone book. It also includes exterior diagrams and a list of the TV’s technical specifications.
Additional sections explain how to perform automatic and manual channel searches, adjust picture settings like brightness and contrast, and diagnose common issues with audio, video, or signal reception. Safety notices and warranty information are also provided. This manual is written in Chinese.
| TV channel system | DST - 57 channels |
|---|---|
| Operating voltage | 220 V 50 Hz |
| Audio output power | 5 W |
| Screen diagonal | 5 inches |
Press and hold the search button on the TV for about three seconds; the TV will start scanning for available channels automatically.
Enter the menu, then use the volume and channel keys to adjust brightness, contrast, color, and other picture parameters.