I have an old Mitsubishi TV...it has a good picture and I use it as a secondary TV. But recently it has started changing channels by itself. I've eliminated the remote as the cause. So what could it be??? Sometimes I can't even get it back to the channel I was watching...I turn the TV off, wait a bit, then turn it back on...sometimes this works. Not sure what the model is. Any help would appreciated. Thanks..
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Re: TV Changes Channels by itself
The keyboard switches are going bad part# 432P109010 (there are ten of them).To verify this, disconnect the connecting wire to the keyboard pc board and see if you still have the problem- the remote will still function normal- the green power led will not light up when you power on the TV with it disconnected
so listen for the click and wait for the TV to power up when you use the remote.
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Can't changes tv picture screen sizes,when the tv is off.She is cleaning the tv,when it is off wright?Yes.Than the tv programming u are watching stay small screen size the whole entire times even different seen or in commercials?Tv even in difference tv channels,screen sizes are small too?Sometimes tv changes screen sizes by itself to fit the tv programming it is playing to fit it prgramming format it displaying.Still have all small screen sizes all the tv channels.Tv must be on and playing.U have the tv original remote wright?Yes.Try looking on ur tv remote control look for a buttons said like Aspect Ratio,Picture Sizes,ZOOM or VIEWMODE buttons,by pushing one of these buttons on the remote should able to changes tv picture screen sizes.
Usually a snowy picture means that you have a bad ground connection. You should see that some channels are beter than others. Verify that the cable connection is good. Try a different cable if you can. If that has no effect, than we need to start looking at the tuner itself. If you can change channels but just have a poor picture, chances are that a resolder of the tuner section will resolve the problem.
Well it may just be the signal in your area that isn't quite as good. That's just fact. Also, because the signal may be weaker, it may take longer for the TV to fine tune to get the best picture quality, which would explain the slight blurring after turning your TV on.