Question about Hitachi Televison & Video

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Dark picture after changing bulb

I changed the bulb on my hitachi 50v720 rear projection tv and the picture is still dark. Could I have another problem?

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  • Hitachi Master
  • 14,553 Answers

If not bright again and not a generic bulb-possible problem with the lamp ballast that powers the lamp.

Posted on Nov 06, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1694 Answers

SOURCE: 46 inch rear projection tv bulb replacement model number 46gw944

1) In customer menu, adjust all video controls to center,then
increase "picture" to 3/4
2)Locate focus/screen adjust block above chassis...adjust
RGB screen controls for best mixture = B/W tracking..
Check with customer color level at minimum..should look gray.
If you turn screen controls up too much,you will see faint
re-trace lines in picture.....once B/W looks good,put color level
back to middle...................................................T.

Posted on Feb 05, 2008

  • 80 Answers

SOURCE: Dark picture problem

did you change the lamp with an original or bulb only - mitsubishi only sells the lamp and housing!!!
never use generic

Posted on Oct 16, 2008

racer7x
  • 42 Answers

SOURCE: hitachi projection tv.7years old.can i clean or change the bulb,w

Remove the front screen

Carefully Remove it

Pull the bottom off
Then remove the screws on the bottom of the screen
when you have them off lift the screen assembly up

be careful of the wire going to the panel
you can move the screen to the side and gain acces with out unplugging the wire but again be careful
clean the mirror and the projection bulbs

with glass cleaner and spray only on to the rag not the mirror or projection bulbs


Put it all back together and your picture should be bright as before












Posted on Feb 10, 2009

  • 65 Answers

SOURCE: chage bulb tv is still dark

The wrong or faulty lamp may cause darkness

Posted on Apr 22, 2009

  • 80 Answers

SOURCE: TV red spot

Your light engine is going bad.

Posted on May 21, 2009

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So you're TV is Sony not Hitachi? if your tv is Sony can you please give ys the model of the tv so we can help you better on this concern....

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Hi I have a Hitachi 50v720 and I just replaced the bulb with the Phillips UX21517 bulb. When I turned the tv back on the picture worked fine except everything has a yellow tint.


I don't know if this set is a DLP or not, if it is, it could be your light engine. Not good, mine had a yellow halo about 2in thick in the middle of the screen. Light engine had to be replaced. Hope this is helpful. GOOD LUCK!

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http://guides.fixyourdlp.com/hitachi/UX21517.php

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picture has gone dark, but not completely away, would this likely be a bulb and how do I change it?

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