How to troubleshoot no video and no audio on LG 43UK6540PTD LED TV?
If your LG LED TV has no video and no audio, you should check the various voltages of the Power Board (13.2V…) and the MAIN B/D. If problems are found, replace the Power Board and repair the parts.
What to do if my LG LED TV picture is broken or freezing?
If your LG LED TV picture is broken or freezing, you should first check the RF signal level using a digital signal level meter. Verify the signal strength and quality, ensuring both are above 50%. Also, check the RF cable connection, try reconnecting it, or consider installing a booster. If the issue persists, contact your signal distributor or broadcaster.
How to fix color error on LG 43UK6540PTD?
If your LG LED TV is showing a color error, begin by checking the color by input and attempt to replace the external input. If this doesn't resolve the issue, consider replacing the Main B/D or module. Check the test pattern of the external device and replace the Main/T-con B/D if necessary. As a last resort, request repair for the external device or cable.
What to do if there is no video but normal audio on my LG 43UK6540PTD LED TV?
If your LG LED TV has no video but normal audio, check that all cables between the boards are properly inserted. These include the Main B/D, Power B/D, LVDS or EPI Cable, Speaker Cable, and IR B/D Cable. Then, check the Power Board 13.2V output. If necessary, repair the Power Board or its parts. As further steps, consider replacing the T-con/Main audio or the Inverter voltage or module.
General| Screen Size | 43 inches |
|---|---|
| Display Type | LED |
| Resolution | 3840 x 2160 (4K UHD) |
| Smart TV | Yes (webOS) |
| Refresh Rate | 50Hz |
| HDMI Ports | 3 |
| USB Ports | 2 |
| Wi-Fi | Yes |
| Processor | Quad Core Processor |
| HDR Support | HDR10, HLG |
| Bluetooth | Yes |
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