Question about Hitachi UltraVision CineForm 55VG825 55" HDTV

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Screen has red etch a sketchlike lines on it?

The tv works ok except for a red lighted area about 3/4 of the way down on the right side. The red etch a sketchlike lines are not in the same area. TV was repaired once when we first got it but I can't remember exactly what they fixed. I think the colors were way off. That's all that has ever gone wrong with it. It is a Hitachi Ultravision Digital the thinner model # 50v500.

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

MikeNJ1964
  • 398 Answers

SOURCE: I Have a Hitachi Ultravision projetion TV Ned help to fix it.

This sounds like the solder joints on one of the convergence output IC's have cracked loose or the IC itself is defective and quitting when it warms up. The IC needs to be either resoldered or replaced.

Posted on Jun 26, 2007

  • 281 Answers

SOURCE: hitachi ultravision 50v500 ghosting

http://www.hitachi.us/Apps/hitachicom/content.jsp?page=support_contact/remote_ir_codes/index.html&level=2&section=support_contact&parent=remote_ir_codes&nav=left&path=jsp/hitachi/forhome/ubcg/&nId=iD

Posted on Mar 02, 2008

yankeegurl
  • 121 Answers

SOURCE: PROJECTION TV HITACHI ULTRAVISION COLOR CONVERGENCE PROBLEM

it sounds like your blue convergence ic is getting weak you need to replace the ic's STK392-110 and you should replace both because when 1 is bad the other will go real soon. They are inexspensive at the sight I posted and you will also get free tech online support if you purchase them there.
http://servicemanuals.vstore.ca/

Posted on Apr 13, 2008

  • 58 Answers

SOURCE: HITACHI ULTRAVISION 50v500

Hello
This is usually not a repair a layman is able to do
as the ammount of plugs and wiring that go with it.
also the tubes have to be set up after installation .
The actual problem may be the red driver transistor or a cold solder joint.
I recommend a tec. to repair it.
Thanks Guy9

Posted on Jun 14, 2008

  • 7 Answers

SOURCE: HITACHI ULTRAVISION 50v500

the problem is most likely a defective light engine, it is a very commen problem with these tvs. hitachi is not very forthcoming with information or help unless your still under warrenty, i have talked with a few people about this and have found a lawyer starting a class action suit, if interested here is a segment of another conversation with all the info to get you started. " let other Hitachi TV owners know about the Class Action Lawsuit against Hitachi regarding the defective optical light engine. They need to call the Law Firm in Dallas Texas, HORP & B, that you mentioned is handling the case and talk to Victor @ 1-877-308-7900. They are taking documentation and cases regarding this suit and people that feel like they have been treated unfairly wherein Hitachi denied sending them a new optical light engine @ n/c need to call and state their case. "
good luck with your problems

Posted on Aug 13, 2008

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