This manual introduces the TCL L22E72/L20E72/SL19E7 liquid crystal television, describing its high‑resolution display, multi‑function TV and computer monitor capabilities, and energy‑saving features. It outlines the main functions, supported video and audio standards, and special features such as automatic signal format recognition and multiple color temperature options.
Safety warnings, installation guidelines, connector descriptions, and detailed troubleshooting steps are included. The specification section lists electrical, dimensional, and performance data for the three model variants. This manual is written in Chinese.
| Audio output power | 4W + 4W |
|---|---|
| Working voltage | 220V 50Hz |
| Rated power consumption | 50W / 45W |
| Screen size (diagonal) | 50 cm / 48 cm |
| Operating temperature | 5 °C – 35 °C |
| Operating humidity | 20 % – 80 % |
| Storage temperature | -15 °C – 45 °C |
| Storage humidity | 10 % – 90 % |
| Receiving channels | 470 MHz full‑channel cable TV (DS1‑57CH – ZI‑Z38CH) |
| Supported TV standards | PAL, D/K |
| Supported AV standards | PAL, NTSC |
| Program memory | 200 presets (0‑199) |
| Screen display languages | Chinese, English |
| Antenna input impedance | 75 Ω unbalanced |
| AV video input | 75 Ω, 1 Vp‑p, RCA |
| AV audio input | 10 kΩ, 0.5 Vrms |
Adjust the brightness and contrast settings, and if the issue persists it may be due to a broadcast problem.
Replace the batteries, ensure the battery polarity is correct, and verify that the TV’s power is on.