To Next PageTo Next PageWhat to do if my LG OLED55CS A has no video and no audio?
If your LG OLED TV has no video and no audio, check the various voltages of the Power Board (Main), such as 20V and 12V. If necessary, replace the Power Board and repair any faulty parts.
Why is my LG OLED TV picture broken or freezing?
If your LG OLED TV picture is broken or freezing, check the RF signal level. If there are still issues, contact your signal distributor or broadcaster (Cable or Air). Also, check the RF cable connection by reconnecting it or installing a booster. As a last resort, replace the Main Board.
How to fix LG OLED55CS A with no video but normal audio?
If your LG OLED TV has no video but normal audio, check the power and Vx1 lock, and verify the audio voltage (20V, 12V, etc.). Replace the Main Board if needed. Also, check the Power Board and repair the Power Board or parts.
How to troubleshoot color error on LG OLED55CS A?
If you're experiencing color errors on your LG OLED TV, first check the color by input. If the issue persists, replace the Main Board.
What to do if my LG OLED55CS A OLED TV has vertical bars or a residual image?
If your LG OLED TV shows vertical or horizontal bars, residual images, light spots, or external device color errors, replace the Module. You can also request repair for the external device or cable, and if necessary, replace the Main Board or Module.
General| Screen Size | 55 inches |
|---|---|
| Display Type | OLED |
| Refresh Rate | 120Hz |
| Smart TV | Yes |
| HDMI Ports | 4 |
| USB Ports | 3 |
| Operating System | webOS |
| Processor | α9 Gen 5 AI Processor 4K |
| Bluetooth | Yes |
| Ethernet | Yes |
| Audio Output | 40W |
| Speaker Type | 2.2 Channel |
| Resolution | 3840 x 2160 (4K) |
| HDR Support | Dolby Vision, HDR10, HLG |
| Wi-Fi | Yes |
Provides general advice for safe servicing and handling of electrical components.
Describes the procedure to check AC leakage current with the power cord disconnected.
Details the method for measuring AC leakage current with the unit powered on.
Outlines essential safety practices and procedures for servicing the TV.
Explains precautions for handling sensitive electronic components to prevent static damage.
Addresses issues related to video display, including no video, picture quality, and color problems.
Covers power-related faults such as no power, intermittent power, and auto power cycling.
Details common audio problems like no audio, distorted sound, or noise.
Addresses issues with TV functions such as remote control, Wi-Fi, and external device recognition.
