Need help?Do you have a question about the LG 42LH20 and is the answer not in the manual?
General| Display diagonal | 42 \ |
|---|---|
| Progressive scan | No |
| Display brightness | 500 cd/m² |
| Display resolution | 1366 x 768 pixels |
| Display technology | LCD |
| Native aspect ratio | 16:9 |
| Contrast ratio (dynamic) | 60000:1 |
| Game mode | Yes |
| RS-232 ports | 1 |
| SCART ports quantity | 0 |
| USB 2.0 ports quantity | USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them. |
| Product color | Black |
| LED indicators | Stand-by |
| Smart modes | Cinema, Game, Movie, Natural, Standard, Vivid |
| RMS rated power | 20 W |
| Number of speakers | 2 |
Weight and Dimensions| Depth (with stand) | 297 mm |
|---|---|
| Width (with stand) | 1028 mm |
| Height (with stand) | 715.4 mm |
| Weight (with stand) | 18000 g |
| Depth (without stand) | 88.7 mm |
| Height (without stand) | 655 mm |
| Weight (without stand) | 16200 g |
Key safety warnings and precautions for technicians and users.
Provides safety guidelines for handling the LCD unit and its components.
Outlines a systematic approach for diagnosing and resolving TV issues.
Details the steps to enter the service menu and the required password.
Provides step-by-step instructions for updating TV software via USB.
Introduces the sections covering disassembly procedures and troubleshooting techniques.
Illustrates the sequence of events for powering on the TV.
Guides troubleshooting of the SMPS board, including voltage checks.
Analyzes PWM signal effects on backlight brightness and waveforms.
Details steps for removing the T-CON shield and the board itself.
Guides checks using the LED indicator and fuse F1 for T-CON functionality.
Details how to verify video content signals via the LVDS cable.
To Next Page
