Why is my LG LCD TV screen dark?
If your LG LCD TV screen is dark, it could be due to a defective LCD lamp or inverter, or an input error of the inverter connector. You can try the following: * Replace the inverter. * Replace the LCD lamp. * Check the connector input.
What to do if my LG RZ-20LA70 has no sound?
If your LG LCD TV has no sound, try changing the source input. Also, check the speaker and speaker wire. You may need to re-solder or check the input/output of IC1, IC100, and IC101.
Why is there no raster on my LG RZ-20LA70 LCD TV screen?
If your LG LCD TV shows no raster, start by checking the LED status. You can also check L900, L901 and change L900, L901, L902, L903. Inspect the input/output of IC901. Consider changing the inverter and checking the inverter connector. Finally, you can change the panel link and check the panel link cable or module. Also check input source cable and jack.
What to do if there is no raster on component signal on my LG RZ-20LA70 LCD TV?
If your LG LCD TV displays no raster on the component signal, check the signal of JA1200 or L1200, L1202, L1203. Also, re-solder or check the input/output of IC1, IC800, IC851, and IC901. Finally, check the input source cable and jack.
How to troubleshoot no power on my LG RZ-20LA70 LCD TV?
If your LG LCD TV is not turning on, check for a short in the main B/D. Also, check for 15V or 5V. Consider changing Lips of Lips Fail. Inspect the output of Change Q1100 and the output of Change IC1107, IC1104. Check the LED Assy and change the LED Assy if needed. Lastly, check P1100, P210 Connector.
What to do if my LG LCD TV has no raster on AV or TV (RF) signal?
If your LG LCD TV shows no raster on AV Signal or TV (RF) signal (Video, S-Video), check the 5V, 33V of TU1000. Also, check the signal of Change L1209, L1210, L1212. Re-solder or check the input/output of IC1, IC800, IC851, and IC901. Finally, check the input source cable and jack.
Essential safety guidelines, general guidance, and ES device handling.
Details the functions of the remote control handset buttons for TV operation.
Describes the controls and connectors on the TV's side and back panels.
Outlines test conditions, adapter connection, and heat run procedures.
Addresses issues like no screen, dark screen, no sound, and video noise with causes.
Visual representation of the TV's main functional blocks and signal paths.
Lists part numbers and descriptions for disassembled TV components.
Lists ICs, transistors, diodes, and capacitors with part numbers.
Details general specifications, test requirements, and application range.
Illustrates the internal connections and lists the parts used in the wiring.
General| Audio system | Nicam |
|---|---|
| Speakers | 2 x 5W |
| I/O ports | 1 x Scart; 1 x S-Video (side). |
| Pixel pitch | 0.637 x 0.637 mm |
| Vertical scan range | 60 Hz |
| Horizontal scan range | 31.5 kHz |
| Response time | 25 ms |
| Display diagonal | 20 \ |
| Display brightness | 450 cd/m² |
| Display resolution | 640 x 480 pixels |
| Display technology | LCD |
| Native aspect ratio | 4:3 |
| Viewing angle, vertical | 140 ° |
| Contrast ratio (typical) | 500:1 |
| Viewing angle, horizontal | 160 ° |
| Product color | Silver |
Weight and Dimensions| Depth (without stand) | 213 mm |
|---|---|
| Width (without stand) | 590 mm |
| Height (without stand) | 457 mm |
| Weight (without stand) | 11500 g |
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