Question about Hitachi 55VF820

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I have sound but only a green picture with various instructions on my hitachi 55VF820

I just got the television. I know it takes special cables. But would using the regular red,yellow, and white cables cause you not to get a picture?

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Logically speaking, try not to use cable that aint appropriate for that device. If you want to get a better result for what you want to achieve try to use the recommended ones (cables). That projection TV need an specified accessories, which is that special cable. If you want to modify its connection try to buy an adapter for that certain cable.
Hope I can help with you with what I said.

Posted on Oct 25, 2012


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SOURCE: Hitachi model 57F500A

Your unit uses a Cathode Ray Tube (CRT) for each color.
Since you didn't say that it was a gradual change, I suspect the CRT filament has failed open rather than a slow death of internal emissions.

Considering the very high level of light asked of these CRTs, I am amazed they last as long as they do.

The replacement and almost certain necessity of initial alignment and color balance, this is beyond DIY possibility and is likely going to be fairly expensive.

After 5 years of use, the other CRTs are somewhat (if not a lot) degraded so don't be surprised when a tech advises replacing them all and I think it may not be a whole lot less expensive than replacing the set although looking at the specs for that set indicates it is not obsolete by any means.

Posted on May 21, 2008

  • 1 Answer

SOURCE: Blue shadows appear to be behind white objects

TV shows large red spot in middle of tv when dark show are on, you can see it more.  Now blue spots on upper right side too.  Spend way to much on this tv to have these kinds of problems only after 3 yrs.

Posted on Nov 25, 2008

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SOURCE: Have yellow spot in center of screeen

it is actually a light engine problem, i have replaced probabily 50 of thease for that exact problem, it is a prity hard part to change yourself, and it costs about 400 dollars

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SD Tech
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SOURCE: Hitachi 51UWX20B no sound, no picture, blinking green LED

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.

Posted on Aug 07, 2009

  • 1 Answer

SOURCE: hitachi ultravision digital 65

my tv is green the colors say that there 100 percent but the yellow is at 0 does that mean i need a new lamp, bulb or what?

Posted on Nov 30, 2009

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Bought a Hitachi 55VF820 at a garage sale and they said it wont turn on even after replacing the lamp.

I dont know the model but general trouble shooting might work. See it you can download the manual and or look at the web site for the trouble shooting section. Check the power cable for breaks, some can be hidden inside the insulation. Look especially at the ends where the wire gets flexed the most. Check if there is a fuzz and it is good. See if there is a removable panel and look inside for bad, burnt, of exploded parts. Read the bulb replacement section of the manual and remove and replace the bulb as instructed. Read turn on instructions and or break-in instructions. Give it some time to warm up.

2 notes; Do all this with out plugged into wall (for safety).
Be sure to try to not touch the bulb and clean it with a lint free clean towel. They are very sensitive to oil or dirt from handling. .

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1 Answer

Black and white picture with red lines vibrating with sound.

More info would be nice. Are you using HDMI or Component cables. If it is component cables (red, blue, green for video white and red for audio) Check your red and blue connection. Green alone will give you a black and white picture.
If you are using an HDMI cable, replace the cable to see if this changes anything or if you have another tv swap cables to see if problem stays with tv or moves to another tv.

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I have a 55vf820 projection tv but the picture is dark whats the fix?

you need a new lamp, USD130, original one
We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel,
motherboard, powersupply ... with high quality and competitive price.
any questions, feel free to contact me
have a nice day!
Jerry Lampdeng Limited

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I have a hitachi 55vf820 lcd rear projection tv. How do you get the cover off to clean mirror?

Don't try that as the mirror almost never needs cleaning and MUST be cleaned with a special cleaner---leave a single fingerprint on that mirror (or a smudge) and it will stand out in the picture like a sore thumb.

Reason to clean mirror?

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Owners manual for a 50" Hitachi 55vf820

I'm sorry for the difficulties you're experiencing in getting the Manual of the TV. Please click here to download the pdf copy of the Manual.

Please let me know if you require any further assistance.

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Picture has shadows with different colors (red, yellow, green)

Sounds like the convergence needs adjustment. You can do this through the menu-follow the on screen instructions. The idea is to line up the red, green, & blue.

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The humming noise from my hitachi 42hds69 television seems to have gotten a little louder. This humming sound is more prevelant on various stations. The humming sound seems to be normal/better on dark...

usually it means your screen is going bad unless it is a fan or some mechanical part thats humming if it comes from the screen itself the screen panel going you can check cables and eveything else for this a signal loss type of short but if you have allready checked all cables or recievers or connected devices for this then its a simple main panel humm means a bad screen panel sorry to say but i hope this helps..

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No picture or sound on tv

look inside middle of board is there 2 green leds on if there isnt take back off and see which ones out

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