Why does my Samsung LN32A330J1D LCD TV say “Check signal cable”?
- CCharles SmithSep 4, 2025
If your Samsung LCD TV displays a “Check signal cable” message, ensure that the signal cable is firmly connected to the PC source.

Why does my Samsung LN32A330J1D LCD TV say “Check signal cable”?
If your Samsung LCD TV displays a “Check signal cable” message, ensure that the signal cable is firmly connected to the PC source.
Why does my Samsung LCD TV screen say “Not Supported Mode”?
If your Samsung LCD TV displays a “Not Supported Mode” message: * Check the maximum resolution and connected device’s Video frequency. * Compare these values with the data in the Display Modes.
How to fix digital broadcasting screen problem on Samsung LCD TV?
If you're experiencing a digital broadcasting screen problem on your Samsung LCD TV, please check the digital signal strength and input antenna.
Why is the image not stable when my computer is connected to my Samsung LCD TV?
If the image is not stable and may appear to vibrate when you have a computer connected to the PC input on your Samsung LCD TV, if the setting is not correct, use your computer utility program to change the display settings.
Crucial safety guidelines for handling the TV to prevent damage and hazards.
Precautions specific to servicing the LCD TV, including capacitor warnings.
Techniques to reduce component damage caused by static electricity.
Safety measures during product installation, including ventilation and cable handling.
Detailed features and technical specifications for specific TV models.
Comparison of new TV models with older versions.
List of included accessories with the TV product.
Step-by-step instructions for disassembling the TV.
Troubleshooting guide based on specific symptoms and board issues.
General troubleshooting steps and common issues like no power or video.
Procedures for aligning and adjusting TV settings.
Accessing and using factory mode settings for adjustments.
Process for calibrating white balance for accurate color reproduction.
Adjusting white balance ratios for different input sources.
Information relevant to servicing, including firmware updates.
Exploded view of the LN26A330J1D model.
Part list for the LN26A330J1D model.
Exploded view of the LN32A330J1D model.
Part list for the LN32A330J1D model.
Exploded view of the LN37A330J1D model.
Part list for the LN37A330J1D model.
Exploded view of the LN40A330J1D model.
Part list for the LN40A330J1D model.
Wiring diagram for the 26-inch model.
Wiring diagram for the 40-inch model.
Visuals and part codes for various TV cables.
Block diagram of the Scaler IC (MSD2248AL).
General block diagram of the schematic.












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