Question about Hitachi 50V710 50" Rear Projection HDTV-Ready Television

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Lcd television has a large yellow circle on the screen

The yellow circle has gradually gotten brighter and cannot be adjusted. is this a bulb or can it be repaired. it is about 2 1/2 years old

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  • Hitachi Master
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Posted on Feb 27, 2009

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The colour has orange and yellow tones I cant remove


Have you tried cleaning the screen? I smoke cigars, so I have to go around compressed-airing and wiping stuff down constantly. Screens look yellow/orange if I let it go too long.

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Yellow spot in middle of screen


Hi there,
We have the same exact problem with the same TV. We've only replaced the bulb once about a year ago. Don't know if it had anything to do with the fact that we now have a large yellow circle in the middle of our screen, which is about 7" round.
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Your set uses red, blue, and green lcd panels to produce your colors. The lamp provides the illumination. What has happened is the blue lcd panel has been damaged in the area you are seeing the yellow. The fix for this is to have the optical block (also known as the engine) replaced. This is a very expensive part,... you may want to move on to a flat panel tv.

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1 Answer

Yellow circle


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1 Answer

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.

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1 Answer

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1 Answer

Mitsubishi VS-6041- picture brightness not very bright


Hi Dawn,
The TV does have a screen control on each of the picture tubes ( there are 3 ) although I do suggest you have a qualified technician make the necessary adjustments as an improper adjustment can cause damage to the set. Should you deside to make these adjustments yourself, you'll need to remove the back ( or front in some sets) ( PRE-CAUTION, UNPLUG THE SET FROM THE WALL BEFORE PREFORMING ANY ADJUSTMENTS INSIDE THE SET ) The screen adjustments are located either on the bottom of each tube or in a group component located where the main High Voltage Wire ( large red wire from the black transformer on the deflection board ) is connected to. Look for a turn pot ( screw type adjustment ) that is marked SCREEN. When you locate it ( whether it be on each tube or in the group component ) turn it up only slightly and not to much, as excessive gain ( turning it up to much ) may cause the TV to shut down. When you have the proper brightness ( when it looks good to you ) close the set up and enjoy the renewed picture. Good luck and I do hope this has helped in some way
Ed
NC Electronics
Mills, Wyoming

Nov 18, 2007 | Mitsubishi VS-6041 60" Rear Projection...

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