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8 yr old mitsubishi tv black with static then will finally turnon

Our 8 yr old mitsubishi tv will turn on and screen is black with static. it doesnt show any numbers when channel changed, nothing. then after a minute or two the picture will come back on, only to go off again about 15 seconds later. it does this about 5 or 6 times and seems to take longer every day. once the picture does come on to stay there are no further problems. it only occurs when first turning the tv on. i dont know if this is something that can be fixed or if it is time for a new tv. we can't even figure out what the problem is. hopefully you can help because we are getting really annoyed with this problem! thank you for your time!

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Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts. Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.

Posted on Apr 04, 2017


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

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SOURCE: the picture on my tv is fuzzy

Check your connections Inm the Back of your Tv and Also see If your VCR got turned on By Mistake....

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SOURCE: No picture

It sounds Like you Had Horz Failure In your Set,The Squealing you Heard was Probly the Horz Output Transistor,You will Probley have to take it to a Shop

Posted on Jul 19, 2007

  • 1 Answer

SOURCE: tv turns off by itself

Try unplugging the cord for a few seconds and then plug back in. This happens on one of our TVs. Using this procedure takes care of the problem. It is like something needs to be reset.

Posted on Jan 08, 2008

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Loose connections in CTR board ( picture tube), resolder it.

Posted on Jul 24, 2008

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SOURCE: Wierdness with the TV

OK - the bad news - like most electronic gadgets these days your TV when plugged in sits in a state where its using electricity waiting for you to push the remote button such that it can jump into life.

This means that there is a circuit in the TV that specifically energises when you push the remote on button and that kicks in a transistor to energise a relay that turns on the juice to get the TV going. Sounds like there is something in that energising circuit that has broken down, perhaps a resistor that is not a resistive as it used to be or a capacitor that is leaky and as a result the circuit is performing the signal to turn the relay on and loosing the capacity to keep the main power relay energised and then the relay is turning off, until the capacitor recharges and it is re energising the main power relay again.

The problem here is that there is no way that you are going to find that faulty component on your own without a wiring diagram, and oscilloscope and a knowledge of electronic design.

You could look up in the yellow pages TV repair and talk to some one over the phone to get an understanding of what may be the problem and a guideline on what they think it may cost to repair. It shouldn't be too much but if they give you the story of lots of dollars you could ask how much to just solder the relay such that the TV comes on straight away when you plug it in rather than having to use the push button or remote to turn it on.
It by passes that circuit - its a little more harsh on the electrics and it means you have to plug and unplug the set to turn it off and on but its an option if you can't afford a new one.

Sorry I can't be more helpful. Good Luck

Posted on Aug 14, 2008

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