This manual covers the TCL L42H78F, L46H78F, and L52H78F digital high‑definition televisions. It introduces the product, its main features and highlights the energy‑saving and high‑contrast display technologies.
The document includes safety warnings, detailed installation and connection diagrams, operation functions, technical specifications, and a troubleshooting section for common issues such as no picture or no sound. This manual is written in Chinese.
| Operating voltage | 220 V |
|---|
Use a soft dry cloth and avoid chemical cleaning agents; do not apply liquids directly to the screen.
Check that the TV is powered, verify the volume is turned up, and ensure the correct input source and cable connections are selected.