What to do if HDMI 2 looks activated when HDMI 1 port is connected on Samsung UN40C6300SFXZA TV?
- BbramseyJul 30, 2025
To address the issue where HDMI 2 appears active when HDMI 1 is connected, a firmware update can prevent this problem.
What to do if HDMI 2 looks activated when HDMI 1 port is connected on Samsung UN40C6300SFXZA TV?
To address the issue where HDMI 2 appears active when HDMI 1 is connected, a firmware update can prevent this problem.
Check Samsung.com for latest firmware updates and troubleshooting guidance.
Quick tips for common issues like power on or video problems.
Information on service bulletins, including power board circuit diagrams.
Detailed steps for the power-on sequence, including voltage checks.
Procedure to force backlight on without the main board connected.
Methods to verify video output and diagnose issues.
Guide to using service mode test patterns for diagnosis.
Troubleshooting LCD signal paths using FBE and FRC test patterns.
Visual examples of screen failures and potential causes.
Checking and setting option bytes for proper alignment.
Procedures for firmware upgrades and service mode resets.
Check Samsung.com for latest firmware updates and troubleshooting guidance.
Quick tips for common issues like power on or video problems.
Information on service bulletins, including power board circuit diagrams.
Detailed steps for the power-on sequence, including voltage checks.
Procedure to force backlight on without the main board connected.
Methods to verify video output and diagnose issues.
Guide to using service mode test patterns for diagnosis.
Troubleshooting LCD signal paths using FBE and FRC test patterns.
Visual examples of screen failures and potential causes.
Checking and setting option bytes for proper alignment.
Procedures for firmware upgrades and service mode resets.












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