Question about Hitachi Televison & Video
I am in need of troubleshooting assistance for my tv... I have a Hitachi 50vs69a tv. I got it around 2006. I've had to replace the lamp twice but otherwise have had no problems with it until this week. For one or two days the power would not turn on but when unplugged and plugged back in, it would then turn on. Now, unplugging and plugging back in doesn't work anymore. When I press the power button, the blue power light will illuminate steady for about 6 seconds, then blink 4 times and shut off. When I press the power button, the tv makes noises like it's going to going to turn on - clicking, fan whirring, etc but once the light blinks 4 times, the fans shut off. No picture ever appears, the screen just stays black as if it's completely turned off. The blue power light is the only one that lights up. What could be causing this? How can I fix it?
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: TV shuts off after on
bad connection inside in motherboard. If you are familiar with soldering check for bad connection inside and re-solder that connection . if not find a technician who can help you!!!
Posted on Sep 12, 2009
The tv is going into protection shutdown. It will try to power up three times, but each time it tries, the microprocessor recognizes an overvoltage, or overcurrent draw, and after three attempts it will place the unit into protection shutdown. There can be many causes of this, but the most likely one is that there is a short circuit in the high voltage circuits. You probably have a shorted flyback and associated components.
Posted on Nov 28, 2009
SOURCE: lg 52sx4d
Power supply switching regulator board inside your LG TV is faulty. There are more than 8 regulated supply rails emerges from that board, after switching regulation, which will enter to different sections of circuits in your Tv. one or tw of its output voltages are missing now, in which, voltage to sound card also will includes. In most cases, this section is replaced as card basis, rather than making "surgery" to it. Clicking noice you hear along with this is a clear indication that there is something short on that board. It will be difficult, even a trained technician to locate and rectify the fault on that board, because, most of the components on it is machine soldered, and cannot be desoldered or resoldered by normal soldereing techeniques. Moreover, some of the components in it are not easly available on open electronic spare part shops, as LG has some special transformeres of their own, which they won't deliver to the open market. So in my opinion, it is best to replace the card itslef with same type and number, Type and number will be printed on the card and can be noted. You must have testing equpments like, a good quality digital multimeter, soldering Iron, desoldering pump and the most is sound knoledge in digital electronics and enough patience. After replacement of the power board, there will have to do some adjustements, [service adjustments] to get the picture well defined.
If you have confidence and informe me by Fixya. I'll assist you. OK.
Posted on Apr 01, 2011
SOURCE: Mitsubishi wont power up
Hey there, I also had a mitsubishi 72in. It did the same exact thing, we took it to the shop and they said the ''engine'' was out on it. They said it would be aprox $500 for the part and $200 for labor. We told them thats more more than we paid for the tv and do what they wanted with it. lol
Posted on Sep 19, 2012
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