To Next PageTo Next PageWhat to do if my Samsung LA46C550J1F has no power?
If your Samsung LCD TV isn't turning on, the issue might be due to improperly connected cables or a malfunctioning Main Board or SMPS. Start by checking the internal cable connections inside the unit. Also check the fuses of each part and the output voltage of SMPS. If those steps don't resolve the issue, the Main Board may need to be replaced.
What to do if my Samsung LA46C550J1F has no video via HDMI?
If your Samsung LCD TV shows no video when using an HDMI connection, it might be due to a disconnected LVDS cable between the Main Board and the Panel. Verify the HDMI source. If the problem persists, the Main Assy may need to be changed.
Why is there no sound on my Samsung LCD TV?
If you're not getting any sound from your Samsung LCD TV, it could be due to disconnected or damaged speaker connectors, or a problem with the sound processing part of the Main Board. First, check the source and the connection of the sound cable. Also, check the sound data appearance. If these steps don't help, the Main Assy may need to be changed.
What to do if my Samsung LCD TV has no video via Tuner DTV?
If your Samsung LCD TV displays no video when using the DTV tuner, it could be caused by a disconnected LVDS cable connecting the Main Board and the Panel. Check the DTV source. Also, check the connection of the RF cable and the LVDS cable.
What to do if my Samsung LCD TV has no video via Analog PC signal?
If your Samsung LCD TV isn't showing video from an analog PC signal, the LVDS cable connecting the Main Board and the Panel might be disconnected. Check the PC source and the connection of D-SUB. If the issue continues, change the Main Assy.
What to do if my Samsung LCD TV has no video via Tuner_CVBS?
If your Samsung LCD TV shows no video when using the Tuner CVBS, it could be due to a disconnected LVDS cable connecting the Main Board and the Panel. Check the Tuner CVBS source. If the problem persists, change the Main Assy.
What to do if my Samsung LA46C550J1F LCD TV has no video via Video CVBS?
If your Samsung LCD TV displays no video when using the Video CVBS, it might be because of a disconnected LVDS cable connecting the Main Board and the Panel. Check the Video CVBS source. If the problem continues, change the Main Assy.
What to do if my Samsung LCD TV has no video via Component?
If your Samsung LCD TV isn't showing video from a Component source, the LVDS cable connecting the Main Board and the Panel could be disconnected. Check the Component source. If the problem persists, change the Main Assy.
General| Screen Size | 46 inches |
|---|---|
| Resolution | 1920 x 1080 |
| Display Type | LCD |
| Aspect Ratio | 16:9 |
| Brightness | 500 cd/m² |
| HDMI Ports | 4 |
| USB Ports | 2 |
| Weight | 18.5 kg |
| Backlight | CCFL |
| Refresh Rate | 60 Hz |
| Speakers | 10W x 2 |
| Power Consumption | 150 W |
| Viewing Angle | 178 degrees |
| Input Ports | HDMI, USB, Component, Composite |
General safety, servicing and ESD precautions to prevent damage and hazards.
Safety warnings regarding circuit modification and power disconnection before servicing.
Essential servicing precautions including AC cord disconnection and voltage meter use.
Safety checks for fire and shock hazards before returning the TV to the user.
Notices about special safety characteristics of electrical/mechanical parts and substitute replacements.
Precautions for servicing units, including capacitor polarity and internal wiring.
General precautions like unplugging units, checking components, and insulation resistance.
Techniques to reduce damage to ESD components from static electricity.
Safety precautions for carrying and installing the product, including ventilation and cord placement.
Lists key features and technical specifications of the LCD TV model.
Explanation of new features like Anynet+ for AV device control via TV remote.
Compares specifications of the current model to older models.
Lists the included accessories with their corresponding part numbers.
Step-by-step guide for disassembling and reassembling the LC550 model TV.
Step-by-step guide for disassembling and reassembling the LC530 model TV.
Initial checks for troubleshooting, focusing on cable connections and power input.
Steps for initial checks, including cable connections and power input to the main board.
Troubleshooting guide for units that do not power on, including checks and component replacements.
Steps to diagnose and resolve issues with no video when using an analog PC signal.
Troubleshooting steps for no video when using HDMI digital input sources.
Diagnosing and resolving no video issues specifically for the Tuner (CVBS) input.
Troubleshooting steps for no video when using the Tuner (DTV) input.
Steps to diagnose and resolve no video issues with the general Video CVBS input.
Troubleshooting guide for no video when using Component video input.
Steps to diagnose and resolve issues where video is normal but there is no sound.
General instructions and precautions for performing alignment and adjustment procedures.
General instructions for color LCD-TV alignment, including test equipment and impedance.
Procedures for entering and navigating the factory service mode for adjustments.
Instructions on how to access the factory service mode using the remote control.
Step-by-step guide on accessing the service mode and its initial display state.
Details of factory data options including reset, type, model, tuner, and country settings.
Information on servicing, specifically the USB download method for firmware upgrades.
Step-by-step instructions for upgrading TV firmware using a USB drive.
Guide on upgrading sub-micom software using the DDC Manager tool.
Steps for connecting DDC Manager, entering factory mode, and loading the sub micom program file.
Provides mechanical dimensions for different TV models, with and without stands.
Visual layout of PCBs, including PCB layout, Main TOP view.
Shows the physical layout of components on the main PCB.
Image displaying the top view of the main circuit board with component labels.
Shows the inner layer layout of the main PCB (second view).
Displays the inner layer layout of the main PCB (third view).
Image of the bottom side of the main PCB.
Image of the 32" SMPS (Switch Mode Power Supply) board.
Image of the 37" SMPS (Switch Mode Power Supply) board.
Image of the 40" SMPS (Switch Mode Power Supply) board.
Image of the 46" SMPS (Switch Mode Power Supply) board.
Visual representation of the TV components and their assembly order.
Detailed list of all parts used in the TV, including code numbers and descriptions.
Block diagram showing wiring connections for 32" and 37" models.
Lists connectors and their pin assignments for various boards.
Describes the functions and connections of major connectors between boards.
Lists and shows images of specific cables used in the TV assembly.
