Sony Support

Article ID : 00151348 / Last Modified : 07/03/2018

What do the colors and the flashing of the LED (On/standby indicator) on the subwoofer mean?

    IMPORTANT: This is a model-specific solution, view the Applicable Products and Categories for this article to verify that these specifications apply to your model.

    NOTE: If the LED on the subwoofer sometimes flashes or sound from the subwoofer sometimes has noise or audio dropout, refer to:  The LED on the subwoofer sometimes flashes.

    Image

    [A]: On/standby indicator (HT-ST9)

    Check the table below to find out about the meaning of the colours of the flashing LED (On/standby indicator) of the subwoofer.

    Type of illumination Green Orange Red

    Lit
    • Power is on.
    • The SECURE LINK connection is active.
    • Power is on.
    • The SECURE LINK connection is active.
    • Power is off.
    • The subwoofer is in standby mode.

    Flashes

    Not applicable

    Not applicable

    Indicates rise in temperature of the subwoofer. Follow the steps below to resolve this:

    1. Power off the subwoofer and make sure that nothing is blocking the vent.
    2. Unplug the power cord from the wall outlet.
    3. Wait for a few minutes until the temperature has cooled.
    4. After the temperature has cooled, plug the power cord back.
    5. Power on the subwoofer.

    Flashes slowly

    		 The SECURE LINK connection is in standby even when there is no signal.

    NOTE:

    		 The SECURE LINK connection is in standby even when there is no signal.

    NOTE:

    Not applicable

    Flashes quickly

    		 For HTST9, HTNT3 and HTRT5, service may be required.

    Not applicable

    Not applicable

    Periodically flashes quickly

    Not applicable

    		 The SECURE LINK connection is being processed. Please wait for the connection to be established.

    Not applicable

    Try the following when encountering an issue with the wireless access point connection:

    • Move the subwoofer closer to the main unit of the home theater.
    • If possible, place the subwoofer where it is not directly blocked by any furniture, walls, or metal barriers.
    • Move your wireless access point (wireless router) more than 1 m away from the main unit, subwoofer, or sound speaker.
    • If the wireless access point (wireless router) that you use can switch between 2.4 GHz and 5 GHz frequency bands, try changing the frequency of the wireless access point to avoid interference.
      • For HT-ST9, HT-ST5, HT-NT3, HT-RT5: Try changing the wireless router to the 2.4 GHz band
      • For HT-CT780, HT-CT380, HT-NT5, HT-CT790, HT-CT390: Try changing the wireless router to the 5 GHz band
    • When using a wireless access point (wireless router) that can fix the channel, change the channel setting of the router to a frequency band shown above and check if the issue will improve. If it has improved, fix that channel.

      NOTES:

    • To change the wireless channel, refer to the operating instructions of the router.
    • If the setting procedure of the router is unclear, it is recommended to turn off the power of the router. The router may automatically select another channel when it turns back on.