I bought a sony fd trinitron wega kv-27fs120 t.v about three months ago and it worked great untill just resently.Now when the t.v turns on and you flip threw the channels there are lines on the t.v,after a couple of minutes the image is very faint and the whole screen is grey with lines and the stand by light flashes.Then the image comes back sometimes only to repeat this problem after a couple of minutes.
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Re: lines on t.v and stand by light is on.
Hard one to call as I have not seen the newer sony chassis yet BUT it sound like to me a fault in the PIP section if there is one or the crt driver circuit or even in the video jungle IC. It is only three months old so call the store where you got it as there should be a warrantee on the set.Good Luck
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If model number listed here (kv-27fs120) is correct the set if not coming on is in shutdown because either a problem in its power supply or something elsewhere pulling the supply voltages down and triggering shut down.
Someone would have to open and first check for voltages and or shorts--no real other easy way to troubleshoot this.
The blinking standby light should be in a repeating pattern of a fixed count of blinks. Please post that count here as that will indicate the circuit in which a problem was detected. Armed with that info, we can then tell you the problem and probable solution.