Problem 1: Ok first of all it's a Sharp 32in TV, not like all the other topics which seem to span all sorts of TV's, why is that? Anyway the problem I have is, well sometimes while watching TV 2 color spots will pop up on the TV one on the left and one on the right. The left is like a yellowish and the right is more of a purpleish, hard to see but if you try they are noticable and annoying. We haven't had the TV long before this started either, maybe a couple months or so but it eventually goes away it's just random. It's almost as if someone is putting a magnet up to the screen in those 2 areas. Nothing around it seems to be the problem and the only thing on top of it is a DVR from our cable company and I tried moving it to see if the colors moved at all and nothing! help, thanks
Spurrious Colours on the screen. If the colours are there on all the TV channels and DVD or VCR or whatever you are looking at, then I agree with jomaru; it must be the tube. Incidentally have you tried simulating it with a magnet?, but do not bring the magnet too close as it may become permanent. When you switch off, and after a few minutes switch on again, the de-gaussing coil behind the tube should energise at mains frequency with a decaying amplitude lasting a few seconds. The alternating magnetic field created should be strong enough to wipe out any permanent magnetic effects which may be stored in the MU-Metal shield. The shield is necessary to screen the Earths magnetic field, and other random fields that may be present. You may need to disconnect, and reconnect the set from the mains to activate the de-gaussing operation. (If it is working!). Another cause of spurrious audio noise and coloured patterns or effects is if the tuner, or input circuits, are picking up from another TV station, or signal source. Satelite dishes for example do not focus sharp enough, so will pick up the signal from an adjacent satelite working on the same frequency. Another source could be a powerful transmitter closeby breaking into the TV's Intermediate Frequency section.
Posted on Oct 21, 2006
The answer to the first question is your picture tube is bad,I hope you have warranty left and you can put a claim,this ia a very rare symptom but I have seen it and sometimes no even a new picture tube takes care of the problem because all the crt used came from the same production line or the same type of tube.The only good thing is that the spots are not there all the time. The noise can be cause by a coil or transformer and is also intermitant,this one is easier to find because the moment you touch the noisy coil it stops or changes tone and that is how you know you found it.I need to be replaced with an exact replacement part.If you are familiar with tv service you can remove the back and with a wooden or rubber handle you can press lightly on any coil or small transformer and you will se how it changes or stops,if you are not too familiar with tv service be safe and seek the help of a servicer.Let Us know how it goes.
Posted on Oct 19, 2006
Sorry, but I have seen this problem three times already. It is a bad connection in the deguassing circuit or an intermittant part.
Posted on Oct 19, 2006
SOLUTION #1
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Problem 2:
Ok the 2nd one is kinda the same thing in a sort of ways where as it's also random. But at certain times the TV will start making this annoying like beeeeeeeeeeeeep sound but it's just a constant and keeps going for a while and then eventually just stops. So it's on and off at random times also.
Now I had this same problem with a monitor I bought for my computer where when a white screen or bright colored screen popped up it would start that ringing or beeep sound (however you wanna call it). To make it go away sometimes you could just bring up a dark screen and it would be gone or sometimes it would just stay for a while and was louder than the TV one and even more annoying. The way I fixed it was going to settings in the Display properties and then the Monitor tab and changing the screen refresh rate to 85hertz when it was set on something lower like 60 or 65. This is just something that I have had a problem with in something before, not something I need help on but just figured I'd throw that in as well, thanks if anyone helps
Well it's acctually my brothers TV, he got it last year with the Monopoly Best Bucks to get some money off it. He didn't get a warrenty on it though so that part is useless, and I don't really know too much about opening and messing around with TVs on the inside plus I doubt he would let me do that anyway. I guess unless he takes it to get fixed nothings really gonna happen about it then, would those have any long term affects on the TV. Like would the colors eventually stay there on the screen and would the noise eventually just neve stop lol?
Well here's a more updated situation, the only other things I can really say are we have the DVR on top like I said and so we have Digital Cable. But on that note the TV is plugged in through the DVR since it has a plug for it, would that cause any problems? The TV is also in the basement on top of a metal file cabinet. It's pretty much the only TV used in that area since it's the biggest and has the Cable box (DVR) there is a Switch(Router kind) near it but I doubt that's the problem. I'm guessing it's gotta be something in the TV itself and not really anything around it because everything worked when we got it. But also I think we got the DVR after the TV so maybe that has some play but I kinda doubt it, so tell me what ya guys think as far as that stuff goes. If any
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