To Next PageTo Next PageHow to fix no raster on HDMI signal on LG 32LH20R LCD TV?
To resolve a 'no raster' issue on your LG LCD TV when using an HDMI signal, start by checking the input source cable and jack. Then, inspect and re-solder the Input/Output of JK101, IC800, JK301, JK302, JK303, IC300, IC301, and JK302, replacing any defective parts. Also, check HDMI EDID data and re-download HDCP. Repeat [A] & [B] process.
How to troubleshoot no raster on PC signal with my LG 32LH20R?
If you're experiencing a 'no raster' issue on your LG LCD TV when using a PC signal, begin by checking the input source cable and jack. Next, inspect and re-solder the Input/Output of J104 and IC100, replacing any defective parts. Check RGB EDID data. Also, check the Input/Output of IC800 and replace the defect part. Repeat [A] & [B] process.
What to do if there's no signal on my LG 32LH20R (RF signal)?
If you're not getting any signal on your LG LCD TV when using an RF signal, check the Input/Output of JK101 and JK201, re-soldering if necessary, and replace any defective parts.
What to do if there is no sound on my LG 32LH20R LCD TV?
If there is no sound on your LG LCD TV, you can try the following: Check the input source cable and jack. Inspect and, if necessary, re-solder the Input/Output of JK101 and JK201, replacing any defective parts. Check the Input/Output of IC800, and replace any defective parts. Verify the input source and change it if needed. Check the Input/Output of IC600, and replace any defective parts. Also, check the speaker and speaker wire, replacing speaker if needed.
General| Audio system | SRS TruSurround XT |
|---|---|
| RMS rated power | 20 W |
| Built-in subwoofer | No |
| Number of speakers | 2 |
| Product color | Black |
| Display diagonal | 32 \ |
| Display brightness | 500 cd/m² |
| Display resolution | 1366 x 768 pixels |
| Display technology | LCD |
| Native aspect ratio | 16:9 |
| Contrast ratio (dynamic) | 60000:1 |
| Screen format adjustments | 4:3, 14:9, 16:9, Zoom |
| Mean time between failures (MTBF) | 60000 h |
| 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. |
| Smart modes | Energy saving |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Power consumption (standby) | 1 W |
| Power consumption (typical) | 150 W |
| Analog signal format system | PAL BG, PAL DK, PAL I, SECAM B/G, SECAM D/K |
Essential safety parts should be replaced with same components to prevent hazards.
Recommendations for servicing, including isolation transformer and leakage current checks.
General advice for servicing, unplugging power, and ESD handling.
Guidelines for soldering, component replacement, and circuit board repair.
Defines scope and lists key electrical parameters like screen size and input voltage.
Details display performance and supported video input signal standards.
Defines scope, requirements, and EDID/option settings for adjustments.
Covers ADC calibration and white balance adjustment steps.
Troubleshooting flow charts for power and no raster issues.
Troubleshooting steps for no signal and no sound issues.
Shows system block diagram and physical component assembly.
Detailed schematics for main scaler and DDR2 memory.
Schematics for power supply, audio amplifier, and tuner circuits.
Schematics for HDMI, Component, AV, USB, and communication interfaces.
Schematics for LVDS and Control Key interfaces.
