Question about Mitsubishi WD-73732 73" Television

6 Answers

Picture lighting / color going bad

I have a WD62927. The change bulb indicator is NOT on. However, my picture has a "halo" type lighting effect around light colors and skin tones. It comes and goes but it seems to get worse after the tv is on for a little while than when the tv is just turned on. Any suggestions on what it is and what do I need to do to get it fixed?

Thanks
The lamp change indicator is not on. Picture colors are off (ie. showing wrong colors); light colors seems to be more affected (i.e. darker parts of the picture seem fine). Some time the right half of the picture flicker badly. The left half also flicker but less frequently. Problems come but some time, I have to turn off the TV and cool it down to get the problem to go. It usually come back within 15 minutes.

Posted by on

  • liem Jan 13, 2009

    Someone posted a solution that an IC on the main board need to be checked Would you please elaborate and answer the following questions:
    1. How do I locate this IC?
    2. How one tests this IC?
    3. How does one replace this IC?
    4. What kind of equipments needed for the above tasks?

    It seems that the problem is serious and Mitsubishi needs to be contacted. Is this problem common enough among Mitsubishi DLP rear projection TVs that I may have a chance to get Mitsubishi to cover the cost of this repair?

    Thanks,
    Liem.



  • liem Jan 14, 2009

    Turn off to cool down the TV doesn't help.
    Reset set it help the flickering problem but the "halo" problem remains. All light color portions of the picture become greenish.

    Thanks.

    PS. The problem starts in the last several days.

×

6 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Master
  • 829 Answers

Hi , Do you have any magnetic device kept next to the monitor for ed : Speakers plz keep this away from the PC , What happens is it degoses the image and some mistic colors are seen, If its yes the n after you remove the device you need to spray the degos to re stabilize the image.

Posted on Jan 14, 2009

  • Milind Shetti
    Milind Shetti Jan 14, 2009

    Degoss the image and should work fine

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 378 Answers

Just the capacitors and ic on the board getting overheated and giving you this problem and they need to be replaced by a professional tecnician after checking the proper voltages of the circuit board.

Posted on Jan 11, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 10,594 Answers

How since long this problem started?
You can unplug TV from AC outlet for few minutes and then power up and check picture result.

Posted on Jan 11, 2009

  • Shahid Electronics
    Shahid Electronics Jan 14, 2009

    I need few info, does TV shows same halo effect on all inputs, like cable, dvd etc or shows different picture results?
    How old is this TV? Though lamp light is not on yet you can give try to replace lamp to check picture result.



×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Sniper:

    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

  • Expert
  • 88 Answers

This is a problem with the DMD driver board (the board that has the actual DLP chip on it). This DLP chip has thousands of tiny little mirrors on it that move to reflect the correct colors at the correct time up on the screen. The DMD board will need to be replaced.

This is a costly repair and requires precision alignment of the DLP chip. A qualified repair technician should be able to give you a good estimate. It may be just as economical (and less work) to replace the entire light engine.

Hope this helps, please rate my solution.

Posted on Jan 11, 2009

  • Derrel Stratton
    Derrel Stratton Jan 11, 2009

    The only part which can affect half of the screen at times is the DLP chip. Upon heating up (or overheating), the DLP chip on the DMD board is failing. This is also the only component that can cause the picture to have an "out of focus" look to it. Again, this is the DLP chip on the DMD board (driver board) and it looks much like an older TV that has convergence issues or halos.

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 326 Answers

Its the bad ic on the main board which has to be checked and replaced.to clear the problem.

Posted on Jan 11, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Mitsubishi Master
  • 60,710 Answers

I don't think this is a back light issue, I do think it is a main circuit board issue, most likely failing capacitors, the better after it cools is a dead give-away.

Posted on Jan 11, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

The color on my tv is turning green. It's not totally green but it's becoming green. No matter how I adjust the colors it remains the same with too much green. You can't see the true colors...


It is very common for the color of the lamp to change as it nears the end of it's life. Depending on the bulb itself you may see yellow, green, or blue shifts (I have even seen red/orange). This is due to the diminishing output of the bulb and while you can make some adjustment you will eventually hit the point of failure. The bulb could in fact last several more weeks or even months depending on your use and environment. It is probably a good time to start searching for a replacement now so you can replace it as soon as it dies or just replace it now if the color is too bad to be worthwhile.

May 23, 2011 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Originally got blinking lights to indicate a bad bulb. Had a spare bulb that I installed. Now a very loud noise from color wheel and only a black and white picture.


Hi,
Bad color wheel is cause of noise and black and white picture in tv, please replace color wheel to solve the issue.
Required color wheel is available in SamsungParts for $120
Thanks.

May 13, 2011 | Samsung HLM507W 50" Rear Projection HDTV

1 Answer

Images on screen are doubled. Everything


u have bad convergence ic stk392-110 or stk392-150

Apr 13, 2010 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

I have a sony kdfe50a10 that has a great picture in the middle but has a yellow halo all around it. I replaced the bulb about a year ago. Does anyone have the same problem.


It may be the color wheel or the light engine. Do you hear any whiring noise - more than usual from the TV? If so its possible the color wheel bearings are going out.

Dec 10, 2009 | Sony Projection Televisions

1 Answer

Double Blue Halo Effect and Blurry Blue Picture


thats a problem with the Blue CRTs coolant needing replacement. If you look directly into the blue and green CRTs while its playing you should notice a bunch of crud inside the lens indicating that the coolant needs replacement. You can get the coolant replacement kit for a phillips at the following link which includes the coolant and instructions
http://servicemanuals.vstore.ca/

Aug 05, 2009 | Philips 60P8341 60" Rear Projection...

3 Answers

Phillips magnavox 55" projection


The coolant needs to be changed in the CRTs ( picture tubes) this is a very common problem with all phillips and magnavox rear projections. Changing the coolant will restore the color and brightness and stop the halo effect. You can get the phillips CRT coolant kit at the following link and it includes all the coolant and the step by step instruction CD with pictures. Its actually a fairly easy job. Heres the link its listed under the repair Kit category.
http://servicemanuals.vstore.ca/

Oct 14, 2008 | Projection Televisions

1 Answer

Philips - Magnavox Model # 9P6034 C103 Picture problems? Please Help


1 5 oz bottle should be enough for each tube. The small picture is caused by bad opto-couplers on the large signal board. Let me know if you need more info on the couplers and where to get them

May 15, 2008 | Projection Televisions

1 Answer

Phillips Model 60pp920217f


No. your problem is related to the coolant in the green CRT has congealed with bacteria and needs to be changed. Thats what causes the halos and general poor picture and color quality. The blue should be changed also. The red for some reason doesnt seem to be affected by the bacteria problem. This is a common problem that happens with all projection TVs phillips and magnavox TVs

May 12, 2008 | Projection Televisions

1 Answer

Need tv help


The sympton for contaminated CRT coolant is objects having a halo effect on the effected CRT color. The Blue and green are the CRTs most often contaminated. But to answer the question changing coolant does help. You can look into the crt with it turned on to see if the coolant is congealed. Just be carteful not to touch any components as you look into the CRT lens.

Feb 20, 2008 | Philips Magnavox 9P6034C 60" Rear...

2 Answers

Magnavox Projection


What is model number? A magnavox 51MP392 is a CRT rear projection type and doesn't use a bulb (unless he was refering to the CRT's as bulb). And they are prohibitively expensive.

Jan 02, 2008 | Philips Magnavox 51MP392H Rear Projection...

Not finding what you are looking for?
Mitsubishi WD-73732 73" Television Logo

Related Topics:

47 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Projection Televisions Experts

matt martin
matt martin

Level 3 Expert

1191 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

The Knight
The Knight

Level 3 Expert

68157 Answers

Are you a Mitsubishi Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...