Do you know how the tech changed the horizontal POS? I am having the same issues and would like some direction. I do have the service manual and can't find anything specific. Thanks for any help. daniel
Sorry I can not help. I had to work that day. My wife was home and she told me he went into some kind of service or maintenance menu on the TV by pressing some button combination. Again, sorry I can not help you. I can give you the information of the company if you want to call them.
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Can you try and see if it is your source that has the lines or the actuall TV that has the horizontal lines.
What is your source? Direct TV, Cable TV or even off air Digital TV.
If you remove your source do you still get the horizontal lines? If you do then what colors are they? Seems if when you remove your source input and you still have these H-lines then you have issues with your individual LCD palets. Especially if they are just Green, Red or Blue?
no picture condition could be caused by a problem in the horizontal deflection circuit or a power supply failure. A horizontal deflection problem often are followed by open fuses due to shorted components such as a h.o. transistor ofcourse there are a lot more componentd that constitute this circuit. Another no picture condition could be caused by defective convergence power amps. these amps usually give an clear indicator when they are about to quit(color curved or missaligned, double color images etc.) this is a common problem with projection tvs and that is where I would tell the tv tech to start looking.
Did you check the resitors out of circuit? As its very rare when a Hitachi doesnt open at least two on the affected circuit. If you checked the resistors in circuit an open resitor will read good even though its actually open.
cory, your losing the high voltage, could be bad solder joints in the horizontal circuit, ie; driver transformer, horizontal output transistor, or the transistor and associated capacitors have finally failed. If you keep trying and it will eventually start then it`s definitely bad solder and that`s a cheap fix from any local tech.
You have a defective light engine. We just went through this and we have the same TV that you have. Hitachi knows about the problem but will play dumb when you first call. If you deal directly with their Customer Relations Department 800-654-7013, it will make a lot of difference than regular customer service.
Here's how they handled our situation. We called Hitachi after lots of research online and they gave us the names of some certified dealers in our area. The tech came out and in less than 1 minute said the TV had a defective light engine. We called Hitachi back and low and behold, they are aware of the problem...imagine that. Hitachi called the dealer directly and once the dealer confirmed the problem, they agreed to send a brand new light engine out to the dealer and the tech came out and replaced it. Here's the kicker...Hitachi will pay the for the part ($1500) but they ask you to pay for the install. Our install was $400. This was worth it to us being that we spent $3600 on this set 3 years ago. Once the light engine was replaced, the TV looked BRAND NEW! Please deal with their customer relations department at the number I lised above. If you deal with customer service, they will have you chasing your tail...so to speak! Good Luck! If you're willing to cover the install, the rest should go pretty smoothly..at least it did for us:)
It is actually an expnasion valve and try contacting Hitachi directly as they usually are pretty good about working with consumers. Although id the TV is out of warranty there is probably nothing they will do but, it doesn't hurt to try.