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These 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://electronicshelponline.blogspot.com/
I would open back and check all boards for cracks, this is a problem with these sets.Then count the blinks on the set and see if it stops for a moment and starts back.
you need to unplug power cord from back of tv and let it set for awhile then plug back into the back of the tv i also have a plasma and it sometimes does that also
The 392-150 is a higher current device then the 110---you can use either--this is normal in the hitachi sets---I usually replace both with 150's---check the led that does not light---should indicate which voltage source is bad---if it is one of the 2 voltages for the convergence ic's(one is a positive and the other a negative voltage) then the convergence Ic's may be bad---look for any discolored resistors around the ic's---one way to tell if it is a convergence ic is to de-solder both ic's and see if the set turns on(the convergence will be out the window) but if it comes on change both and do the alignments with the Hitachi remote. By the way----the led should have a location number printed on the top of the circuit board.
Hope you already resolve it, if not, here what I went through
1. Try to get a service manual for your model ($10-18) from http://www.service-docs2.com or similar place.
2. Open the back and follow instructions how to remove and test the SDR-D and SDR-U board on the far left (take one off, see if you could see half the picture). Inpsect the chips on those two boards, you might be able to spot the burned out holes (that would be the defected board, seemed to be a known issue for particular models)
3. If it is the board, go to ebay and get the pulled out board replacement ($70-90)
I fixed my 50 inch plasma this way
My Polaroid TV 3211 TLXB (2007) was working fine, turned it off and now won't power up, volts on power supply are normal, red light is on. Control boxes are avaiable. Could this be the most likley problem and are they interchanable with other similsr sets. ? Thanks for any help
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