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When TV is turned on it starts but then shuts off before a picture comes on and will not turn on again unless power is cut off to it. When this is done the above happens again

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Hi i had the same problem i found it was my pci slot i had to move it to another then it worked ok

Posted on May 18, 2008

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Power keep cutting off . picture don't come up b4 it shuts down


sounds like the unit has a faulty power supply. the capaciters have just enough power to turn the unti on but are failing to hold a charge to maintaine it. with rear projection you most lily dont have a warranty, you can try contacting the manufacturer but unless you bought an extended warranty i doubt it would be of any use. consider purchasing a new tv or contact a tv repair specialist, since dealing with power supplys can be dangerous.

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My TV started off by turning itself off after being turn on. The only thing was the light to the power switch remained on but the picture was not visible. Ii would keep shutting it on and off until it got...


Dont know your brand, but it sounds that your interface board (power) is not holding low voltage(5V) to main brd. It is not something I or anyone can guide you thru this unless you have an electronics troubleshooting background. In other words, no easy fix here, sorry. I would suggest taking unit to a qualified shop in your area.

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chip on ic board repair shop might replace it and reprogram if the tv is worth the fix

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check r517 on the power supply board if it is burnt or damaged replace it with a + or - 5% 10K 1/4 watt resistor this has been a problem in other units.

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Need Help big screen turns on thens goes off


a tv has two components, firstly a power supply produces high voltage to trigger a line transformer, in turn a transformer produces smaller voltages. firstly check if the ht is constantly been produced from a supply, if this is there than go to a line transformer, and check voltages at the output.

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