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513 Answers
Re: sony KV-20FS120
It's normal for new sets, especially Sonys to do that due to some sort of gas build-up in the new tube. My set still gets a
high-pitched buzz after power on and lasts for a minute or two before silencing.
If the hissing continues when the TV is turned off return it to the shop ASAP. It could be a problem with the power supply, something getting ready to blow up.
Good luck
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That model number is not correct. What is an EHT? Must mean HVT High voltage transformer. If this set is 26 inch or smaller replace it. If larger yes replace the transformer.
Do you get sound when you play a dvd thru audio/video inputs?
If this unit has audio output at the back run audio to amp and see if you have audio thru your stereo
You have your information incorrect, Q is not the designation for diodes, Q657 would be a transistor. First give us the correct number for the diode and how do you know it is shorted?
Invest in a good surge protecting power bar for your electronics such as TVs and Computers. This can save your devices from all kinds of surges and overloads.
Undoutably the SMPSU (Switched Mode Power Supply) is faulty.. This will be a shop job... ensure you get a firm "Quote" and explanation B4 allowing it to be fixed.
i have sony kv 14 gmr1mk r2ks always shorted and the other 1 appear like a lightning in midle of screen.. kv 21gmr1mk when adjust the brigth and contras it shut down the picture and blinking..can u help me how to troubleshoot this problem? what remedy you sudgest..thank you...
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