Question about Sony FD Trinitron WEGA KV-21CL10 21" TV

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When i start my tv, a reddish color appears and then after two to three seconds, it comes to normal. However, even after two to three seconds the brightness of the tv never comes to normal and it is slightly on higher side in terms of contrast. This causes the sharpness and brightness problems specially during the scenes of sunlight.

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Hope you have adjusted with your remote. Even with this if the problem repeats, there may be resistor gone in high value or open.

Try the circuit associated to red gun ( cathode of the picture tube). If you have a digital meter, switch OFF TV and give a check on all the resistors. Check whether any value is changed to higher side.
If you notice any ohmic value changes replace them with identical type.

If variable potentiometers are provided try adjusting them. But note down the orginal position.

If it is service mode adjustment, contact SONY service center as the service pass word code is known to them only.

Posted on Jul 13, 2010

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