This manual explains the basic operation of the TCL NT21228 TV, including how to power the unit on and off, navigate menus, and adjust picture and sound settings. It also describes the remote control functions and the layout of the TV's front panel controls.
Additional sections cover channel searching, program memory, picture enhancement, audio adjustment, system settings, and a detailed fault‑checking guide to help resolve image or sound issues. An appendix lists the accessories included in the package. This manual is written in Chinese.
| Operating Voltage | 165‑250 V 50/60 Hz |
|---|---|
| Screen Size (Diagonal) | 51 cm |
| Program Memory Capacity | 228 programs (0‑227) |
| Audio Output Power | 2 W |
Select the “Auto Search” option in the menu or press the “Search” button on the remote to start automatic channel scanning.
Enter the “Picture” menu using the remote, then use the channel and volume keys to select and modify brightness, contrast, color, and sharpness.
Open the “Audio” menu, adjust the volume with the volume keys, and toggle the “Smart Volume” option to let the TV set volume automatically based on the signal.