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Re: Hitachi TV 42hdt51
Might be the digital board, which on this unit you're in luck, easy to diagnose. The digital board has a group of led lights on it D302, D303, D304, D305, D306 if when you attempt to power up and of these begin flashing or changing colors it's likely digital board needs to be replaced...
If any of this sounds to foreign get a pro on this, you can mess this unit up in the blink of an eye...
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In the case of my TV, I had to replace the main digital board. I was able to find one online for about $80 and replace it myself. Once you get the rear cover off the TV the digital board is easily accessible and took maybe 20 minutes to replace. Good luck!
Ur tv was plug into a power surge protector?Yes?Tries tv and those pay cables or satalites signals boxes unplug,replug it back about 20-30 mins later for those pay signals boxes to reboot and updated it softwares.Tv to do a resetting itself back to factory setting.The tv have 50/50 might work again.If not have to take parts and check for any can see plainly viewing damages.Than that ur tv causes and damges.Not.If u want to tries to save this tv.The first thing u have do the must change the tv power supply board first see if that will save ur tv,that the board where power a/c cord plug into it.If not tv must have to be change the main logic tv turner signal board too.That the board where it take in the tv broadcasting signal wire plug into it.80-90% these 2 boards are causes and take most of the power surges.U have some basic mechanical skills like take things aparts and putting it back togther?Yes?Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish power supply board for the replacement or the tv main logic tv Tuner signal board too.