I have a 2007 Mitsubishi WD-65731 LCD TV. I have relpaced the bulb for the third time, and now I have numerous black and white vertical lines, and sometimes just a total white screen. When it powers down the lamp button will bink green numerous times before shutting down completely. Does anyone know the problem? Please help.

If your Mitsubishi WD-77731 TV screen has turned completely white with white vertical lines, it is possible that there may be a fault in the display panel or the video processing circuitry of the TV. This could be caused by a variety of issues, including a faulty LCD driver board, a loose or damaged video cable, or a problem with the TV's power supply.
Here are some troubleshooting steps you can try to determine the cause of the problem:

1. Check the video input: Ensure that the video input to the TV is working properly by connecting a different video source, such as a DVD player or game console, to the TV.
2. Check the video cables: Inspect the video cables that connect your video source to the TV for any damage or loose connections. If you find any damage, replace the cable.
3. Power cycle the TV: Turn off the TV and unplug it from the power outlet for 1-2 minutes. Then, plug the TV back in and turn it on to see if the issue persists.
4. Check for firmware updates: Check the Mitsubishi website to see if there are any available firmware updates for your TV. Updating the firmware may help to resolve any software-related issues.

If none of these steps resolve the issue, it is recommended that you contact a professional TV repair service to diagnose and fix the problem.

You have a problem with the Formatter Board. This is placed between the Light Engine and the Fan. If you are planning to do this your self, before you buy make sure you get the right part since there are 2 different boards. This part cost about $60 and it is relatively easy to install. It requires patience, latex gloves, pointy pliers and both types of screw drivers.

Mitsubishi's product line includes a wide array of LCD, Flat Panel, and DLP televisions to suit your home entertainment needs. The electronics division has the distinction of inventing the first rear-projection television and selling the very first HDTV in America. Their 400,000 square foot manufacturing facility, located in Irvine, CA, boasts the ability to produce more than 1,000 projection TV's in one day. The company's oft-stated goal of unmatched excellence is driven by their mantra: "Technically, anything is possible." In June, 2008, Mitsubishi introduced a new premium flat panel TV with an integrated 16-speaker sound projector.
Warranty Information
There is in-home service on all big screen models, which have warranties of 30 days for screens and one year for parts and labor. The LCD televisions have a one year warranty on parts and one year on labor with carry-in service. For plasma sets, in-home service is available on all models. There is a one year warranty on parts and one year on labor. The faulty thermal sensor, mentioned in the commmon repairs section, is now covered by an extended 2 year warranty, as is the problem related to the optical engine.
Common Repairs
For the following models: WD-52631, WD-57731, WD-65731, WD-Y57, WD-Y65, WD-57732, WD-65732, WD-57831, WD-65831, the most common repair problem stems from television shutting off almost immediately after it has been turned on accompanied by the message, "TV will shut down in a few seconds. Please check if the air flow is blocked." According to the Mitsubishi website, this issue is caused by a loose connection as a result of a faulty thermal sensor. For models: WD-73727, WD-73827, WD-73927, WD-73732, WD-7383, the most encountered repair problem has been in relation to the optical engine. Another common situation consumers have encountered is failure of the TV to turn on along with unceasing flashing of the green power light. The solution for this problem, caused by the DM board, will vary by repairman. Consumers have also encountered issues with moving vertical or horizontal lines appearing on the screen which can either be due to problems with the capacitor, light engine, or formatter board.

Remove the lamp and do a visual inspection.
If this is a DLP you may have a bad color wheel! whistling sound is a sign of color wheel.

Good luck to you

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Sir try to check this link http://support.mitsubishi-tv.com/files/oguide/WD-65731.pdf or if you have any question regarding replacing the lamp feel free ask, good day and best regards.

Common Repairs
For the following models: WD-52631, WD-57731, WD-65731, WD-Y57, WD-Y65, WD-57732, WD-65732, WD-57831, WD-65831, the most common repair problem stems from television shutting off almost immediately after it has been turned on accompanied by the message, "TV will shut down in a few seconds. Please check if the air flow is blocked." According to the Mitsubishi website, this issue is caused by a loose connection as a result of a faulty thermal sensor. For models: WD-73727, WD-73827, WD-73927, WD-73732, WD-7383, the most encountered repair problem has been in relation to the optical engine. Another common situation consumers have encountered is failure of the TV to turn on along with unceasing flashing of the green power light. The solution for this problem, caused by the DM board, will vary by repairman. Consumers have also encountered issues with moving vertical or horizontal lines appearing on the screen which can either be due to problems with the capacitor, light engine, or formatter board. Make sure all bad caps are changed.

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This problems very exspensive to fix.The Light projection Engine have a problems,with a IC design flaw.This problems happen to many Big screen tvs 65 and up have a design IC flaw by many companies like Sony,Mitsubishi,Toshiba and Samsang.Call up Mitsubishi make some kind of deal with them to help u to fix the Light projection Engine by replacing the IC or replace the whole entire Light projection Egine.

If the screen is turning yellow from the centre out, then the blue LCD unit is burning up. Check that there is good airflow to cool the optics. It will not recover if that is what has happened unfortunately.

Put the lamp door back on ..:) then rate me