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Kenneth WardAug 7, 2025
What to do if there is no sound on my LG 32LH70YR LCD TV?
- BBenjamin JamesAug 7, 2025
If you are experiencing no sound on your LG LCD TV, check the input/output of TU500. If it has failed, replace the defective part.
What to do if there is no sound on my LG 32LH70YR LCD TV?
If you are experiencing no sound on your LG LCD TV, check the input/output of TU500. If it has failed, replace the defective part.
What to check if there is no raster on HDMI signal on LG 32LH70YR?
If there is no raster on HDMI signal on your LG LCD TV, check the input source cable and jack.
What to do if no raster on HDMI signal on LG 32LH70YR LCD TV?
If there is no raster on HDMI signal on your LG LCD TV, check the input/output of JK301, JK302, and JK303. If any of these are defective, replace the faulty component.
What to do if there is no signal on TV (RF) signal on LG LCD TV?
If there is no signal on your LG LCD TV when using the RF signal, check the input/output of P401. If it has failed, replace the defective part.
What to do if no raster on AV (Video, S-Video) signal on LG 32LH70YR LCD TV?
If there is no raster on AV signal on your LG LCD TV, check the input/output of P401. If it has failed, replace the defective part.
General advice for safe servicing procedures.
Procedures for ensuring electrical safety regarding current leakage.
General guidelines for safe and effective servicing procedures.
Precautions for preventing damage to ES devices from static electricity.
Best practices and techniques for soldering electronic components.
Procedures for removing and replacing various electronic components like ICs, transistors, diodes, and fuses.
Techniques for repairing damaged copper traces on printed circuit boards.
Defines the scope of application for this service manual.
Lists general technical specifications of the product.
Outlines the methods used for testing product specifications.
Optical specifications related to color and brightness performance.
Details specifications for component video input signals.
Specifications for RGB input signals, including analog PC and DTV.
Specifications for HDMI input signals for PC and DTV modes.
Defines the scope and specific requirements for adjustments.
Lists the key items that require adjustment during servicing.
Procedures for performing adjustments on the PCB assembly.
Instructions for downloading the Mstar main software for adjustments.
Guidance on setting the correct tool and input options for adjustment.
Procedures for downloading Extended Display Identification Data (EDID).
Details the format and content of EDID data for various inputs.
Step-by-step guide for calibrating Analog-to-Digital Converter (ADC) for different inputs.
Instructions for verifying the software version installed in the unit.
Procedures for adjusting white balance for optimal color temperature.
Troubleshooting flowchart for issues related to the unit not powering on.
Troubleshooting flowchart for issues where no picture is displayed.
Troubleshooting steps for no picture when using PC input.
Troubleshooting steps for no picture when using Component input.
Troubleshooting steps for no picture when using HDMI input.
Troubleshooting steps for no picture when using AV (Video/S-Video) input.
Troubleshooting steps for no signal when using TV/RF input.
Troubleshooting steps for issues related to the absence of audio output.
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