How to Troubleshoot & Repair a Sony CRT Tube TV

Written by kristan hart
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As you learn how to troubleshoot and repair a Sony CRT tube TV, you can take care of minor problems on your own instead of calling in a pricey service person to fix it for you.

Skill level:

Things you need

  • Sony television remote control

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    Poor Picture Quality

  1. 1

    Turn off all electrical devices or battery-operated devices operating near the television. Items such as fluorescent and halogen lights, battery-operated toys and even vacuum cleaners can create radio-frequency interference, decreasing the quality of your picture.

  2. 2

    Press "Menu" on your Sony television remote control and select "Picture." Try to adjust the "Sharpness" and see if it helps clear up your picture. If that doesn't work, turn the "Digital Noise Reduction (DNR)" function to "On" and turn the "Digital Reality Creation (DRC)" feature to "On" or "Off."

  3. 3

    Plug your television into a different surge protector or a different wall outlet to see if that fixes the problem. If your outlet doesn't have the proper voltage, it can cause a poor picture quality.

    Low or No Audio

  1. 1

    Check to see if your Sony CRG tube television is on "Mute." Press "Volume Up" on the Sony television remote control. This automatically takes your TV off "Mute" if that was the problem.

  2. 2

    Locate the headset jack on your Sony CRT television--usually on the side or the front of the TV where the other control panel buttons are. If headphones are plugged into that outlet, it will prevent audio from coming through your television speakers. Unplug the headphones to fix the problem.

  3. 3

    Press "Menu" on the remote control and access the "Audio" menu. Locate the "MTS Settings" and make sure it's set to "Stereo" or "Main."

  4. 4

    Stay in the "Audio" menu and look for the "Simulated" effect. Turn it to "Off." Locate "Speakers" and make sure they're turned to "On."

    Flashing "Standby" Light

  1. 1

    Power off the television.

  2. 2

    Reset the television when you unplug it from the surge protector or the wall outlet where it was plugged in.

  3. 3

    Wait one minute.

  4. 4

    Plug the television back into the same outlet or surge protector.

  5. 5

    Turn on the television, and the "Standby" light should no longer flash.

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