My 7 year old trinitron, KV-27v22, working great until recently, no longer produces a picture when first turned on. With time and patience we can get the picture on sometimes, but until then we get a blank screen or a picture that flashes or is distorted. Sometimes the red light flashes while the picture is not on, so I assume this may be a power problem. BTW, in the past, sometimes the set was turned off by flicking the main power to the room (a light switch) off rather than turning the set off first. Don't know if this may be a factor.
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It must be connected with the color circuit of your tv, a board connected to back end of the tube. Could be dust, cob web or carbon deposit shorting a transistor. Popping noise if loud enough can be attributed to high voltage circuit fault and picture tube.
dear, you can check that transformers out put before connecting to a tv. also when its connected to a tv.
get a avo meter and connect in series with a tv.
observe the current on the intial switch on and when the picture goes. if you notice that current on intial switching is high and then it starts going lower and lower, then change the transformer.
but if the current starts going up from the intial current then check the power supply components of the tv.
thanks for asking fixya.
It is likely the HOT (horizontal output transistor) and a couple of associated capacitors. common failure. the HOT is around 8.00 and some for the caps. but almost no tv person works for less than 100. and provides a warranty. so you can expect 150. at least for a bill.
There's a possibility that you may be experiencing problems with the audio output IC -IC404 - All serial numbers produced until July 2003 might use one of these defective IC's. So if your set was manufactured before this date, that is probably the culprit. If not, and you have it connected to a cable box that has its own volume control, it could be that its volume is turned down and by turning up the TV's volume too high that you are getting this distortion. Hope that helps.