How to Troubleshoot a Sony CRT Screen That Has a White-Haze

Written by billy kirk
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How to Troubleshoot a Sony CRT Screen That Has a White-Haze
White haze is often the result of outside magnetisation of your Sony TV. (Jupiterimages/Polka Dot/Getty Images)

The Sony CRT (cathode ray tube) TV line is a selection of Sony-produced, standard definition televisions that lack a flat-panel design. These televisions can suffer from a white-haze screen effect and related colour distortions due to magnetisation that is common to CRT-designed TVs. Fortunately, this problem is not irreversible and you can troubleshoot and fix your Sony CRT TV even if you lack any expertise when it comes to television repair.

Skill level:
Moderately Easy

Things you need

  • External degausser coil

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  1. 1

    Check the audio/video cable used to connect your Sony CRT TV to your cable or satellite receiver box. This audio/video cable has three prongs on each of its ends, and these are connected into ports on the back of the Sony TV and the receiver box. Ensure that the cord of the audio/video cable and its various prongs are not visibly damaged in any way. If it is, replace it.

  2. 2

    Check the area around your Sony CRT screen and ensure there are no powerful devices that may be giving off electronic interference. This kind of interference can cause your Sony CRT TV to become magnetised, resulting in white-haze and related colour distortions on your set. Remove any computers and other powerful electronics from the Sony TV's vicinity.

  3. 3

    Attempt to demagnetise the screen if you suspect the screen has been magnetised but removing other devices doesn't seem to help the problem. Obtain an external degausser coil and turn it on.

  4. 4

    Approach the screen with the coil and hold it a couple inches from the front display. Move the degausser in a slow, broad circle, taking care to cover the entire area of the CRT screen. If your Sony TV is on, you will see a rainbow coloured effect on the screen.

  5. 5

    Take a step back and repeat this process, again waving the coil in a circle. Continue moving back and waving the coil until the rainbow effect disappears from the screen. The Sony CRT screen should be demagnetised and the TV's white haze will be gone.

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