This manual describes the main features of the NT21281C television, including picture and sound adjustments, channel selection, timer functions, and built‑in telephone and video playback capabilities. It also explains safety warnings, battery installation for the remote control, and how to connect the antenna and power supply.
The guide covers remote‑control operations such as channel up/down, menu navigation, automatic channel search, and volume control. A troubleshooting section helps resolve common issues like no picture, no sound, interference, and battery replacement. This manual is written in Chinese.
| Screen diagonal | 51 cm |
|---|---|
| Power supply range | 165 V – 250 V |
| Audio output power | 5 W RMS (1.5 W + 1.5 W per channel) |
Make sure the volume is not muted, press the volume up key, and verify the audio output settings.
Adjust the antenna direction or use an outdoor antenna; ensure the correct UHF antenna is connected.