Question about Sony Bravia KDL-40W4100 40 in. LCD HDTV
These trouble is commonly caused by a rusty or dirty switch. It is easily to determine what switch, try to check the power switch or replace a new one. When replacing a switch open the back cover of your tv, try to locate the power switch by looking for the power button, It is connected in a small pcb together with the volume and channel button it is separated to the main pcb connected with a wire.
Posted on May 28, 2011
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Posted on Jan 02, 2017
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Sorry to say but it sounds like your power supply is bad, although it is possible it is some other components in the TV because turning it off allows all diodes etc to power down completely. Unfortunately after a bit it happens again which leads me to believe again power trouble.
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