To Next PageTo Next PageWhat to do if my LG 49SJ800V picture is broken or freezing?
If the picture on your LG LED TV is broken or freezing, check the RF signal level using a digital signal level meter. Alternatively, use the Diagnostics menu on the TV's OSD (navigate to Advanced > Channels > Channel Tuning > Manual Tuning) to check the signal strength and quality. Normal signal strength and quality should be over 50%.
What to do if there is no video but normal audio on my LG 49SJ800V LED TV?
If you have normal audio but no video on your LG LED TV, verify that all cables between the boards are properly inserted. This includes the Main Board, Power Board, LVDS or EPI Cable, Speaker Cable, and IR Board Cable.
What to do if there is no video and no audio on my LG 49SJ800V?
General| 3D | No |
|---|---|
| Luminance | 65 % |
| Annual energy consumption | 92 kWh |
| Power consumption (standby) | 0.3 W |
| Power consumption (typical) | 66 W |
| Screen shape | Flat |
| Response time | - ms |
| Display diagonal | 49 \ |
| Display brightness | - cd/m² |
| Display technology | LED |
| Native aspect ratio | 16:9 |
| LED backlighting type | Edge-LED |
| Display diagonal (metric) | 123 cm |
| Screen format adjustments | 4:3, 16:9, Auto, Zoom |
| Motion interpolation technology | TruMotion 200 Hz |
| Tuner type | Analog & digital |
| Analog signal format system | - |
| Operating system version | 3.5 |
| Operating system installed | Web OS |
| RF ports quantity | 2 |
| HDMI ports quantity | 4 |
| DVI-D ports quantity | 0 |
| USB 2.0 ports quantity | 3 |
| Ethernet LAN (RJ-45) ports | 1 |
| Common interface Plus (CI+) version | 1.3 |
| Product color | Silver |
| Panel mounting interface | 300 x 300 mm |
| Wi-Fi standards | Wi-Fi 5 (802.11ac) |
| RMS rated power | 20 W |
| Package depth | 148 mm |
| Package width | 1193 mm |
| Package height | 755 mm |
| Package weight | 15500 g |
Weight and Dimensions| Depth (with stand) | 232.9 mm |
|---|---|
| Height (with stand) | 701.3 mm |
| Weight (with stand) | 12900 g |
| Depth (without stand) | 62.1 mm |
| Width (without stand) | 1100.1 mm |
| Height (without stand) | 640.9 mm |
| Weight (without stand) | 12700 g |
General advice for technician safety and equipment protection.
Procedure for testing AC leakage current.
General advice for servicing electronic equipment safely.
Precautions for handling sensitive electronic components.
Best practices for soldering electronic components.
Defines the TV models covered by this specification.
Details testing conditions and parameters.
Describes testing procedures and standards.
Lists general specifications for different markets.
Details supported digital and analog broadcasting systems.
Specifies supported frequency ranges for DTV and ATV.
Lists supported reception standards and modulations.
Specifies input formats for 2D video signals.
Lists supported PC resolutions and formats via HDMI.
Procedure for updating TV software via USB.
Procedure for updating TV software via network.
High-level overview of the System-on-Chip architecture.
Diagram showing tuner and CI module connections.
Diagram illustrating video and audio signal flow.
Diagram detailing HDMI 2.0 interface connections.
Diagram of USB, Wi-Fi, M-Remote, and UART interfaces.
Illustrates I2C communication bus connections.
Diagram of the EPI block and its PMIC interface.
Steps for disassembling the TV chassis using screws.
Procedure for removing adhesive tape during disassembly.
Steps to disconnect various internal cables.
Steps for removing IR and WiFi modules.
Further screw removal steps for internal components.
Steps for removing the speakers.
Final screw removal steps for internal components.
Troubleshooting steps for video-related issues.
Troubleshooting steps for power-related issues.
Troubleshooting steps for audio-related issues.
Troubleshooting steps for functional issues.
Troubleshooting steps for noise issues.
Troubleshooting steps for exterior defects.
