I have a Toshiba 57h81, the problem is as fallows. when i plug it in and hit the power button, it wont turn on and led stays blinking, i know a little something about electronics,but nothing about TVs. if you can please send me some info on this..from what i have read,it's something to do whit an ic...my email is, [email protected]
I had a condition on my Toshiba like that and after 4 attempts from a well know discount retailer to repair (it was under warranty), which they never did, I called a Toshiba recommended shop and it took the person apx. 20 min. to repair and the TV hasn’t stopped yet. What he found was a cracked solder connection on the circuit board and simply resoldered it. Total cost was apx. $100 for the service call. Point being, before condemning any component look for the obvious problems! The cracked solder connection stuck out like a sore thumb, even Ray Charles could have seen it. Best of luck on your repair!
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IT is possible that the power connector in the back of the set is either faulty or broken, you would have to go into the back of the set, and look and see in the connector to the power board isloose, if it is, then you might be able to resolder it on. If not, then there is a problem with the plug, try a different outlet.
I had the same issue with my 57 in. Mitsubishi. I fixed it by buying a new projection bulb. The Mitsubishi manual indicated this was the fix for my Mitsubishi TV. Be advised that new projection bulbs are not inexpensive. My TV works like new once the projection bulb was replaced.
IF YOU REPLACED THE SAME PICO FUSE, YOU PROBABLY HAVE A BAD CONVERGENCE IC AGAIN . DID YOY SNUG UP THE IC TO THE HEAT SINK AND USE THERMAL HEAT COMPOUND ON THE NEW IC'S? ALSO CHECK SOLDER CONNECTIONS TO C810 AND C809 THE FUSE BY THE CAPACITORS MAY BE OPEN.
I have a toshiba 55hx70 same problem,repair guy just left said it was the power supply and wasnt worth fixing 350 to 400 dollars The tv is 9 years old and they wouldnt even take it to shop. Its been a great tv firs thing to go wrong.. Wo nder if I could replace it myself???
Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electro-medical.blogspot.com/ http://homenol.blogspot.com/ http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
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You will need a service manual to troubleshoot the set to be able to find whats going on with it . Its in shutdown mode with the led flashing. A good manual is available at this link. http://servicemanuals.vstore.ca/