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When it shuts off. Try doing what's called a self-diagnostic test. As soon as the television shuts try these steps.
Pressing on the front panel's ?INPUT? and ?MENU? buttons at the same time, and holding for 5 seconds, activates the Self Diagnostic Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem has occured since the last Initalization.
Please do Note: The front panel buttons must be used, NOT those on the Remote Control.
? The number of flashes indicates the value of the MSD (tens digit) of the Error Code. ? The flashing then pauses for approximately 1/2 second. ? The LED then flashes indicating the value of the LSD (ones digit) of the Error Code. ? The Error Code is repeated a total of 5 times. Example: If the Error Code is ?24?, the LED will flash two times, pause, and then flash four times.
The Error Code designations indicating a malfunction, or no malfunction, are listed below: Self Diagnosic Code Description 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source).
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First thing to do is put the original boards back in the TV, none are bad, you have defective LED strips in the panel, real common issue with this model set, the power supply inverter senses the over current and shuts down, you get the blinking standy light when this happens
The green light is known as "The blinking green light of death". This refers to the green LED on the front panel of the TV that normally blinks when turned on after a power failure or when unplugged: the green light is supposed to flash for about 1 minute while both microprocessors boot up: If it won't stop blinking it means that they aren't communicating w/each other. Unfortunately, it's common in Mitsubishi & other RP TV's. Getting this fixed by a professional is around $6-700 with labor, parts, etc. It's really not worth it in my opinion. I would go out and buy an LCD or an LED TV.
Without doing alot of research I see that you have a dlp TV. If the light for the lamp is blinking and your unit is 6 years old or older you should replace the lamp. It is definitely bad. I have a tip at http://www.fixya.com/support/r4168009-change_lamp_in_dlp_projection_tv which will walk you through it. Let me know if you need more help.
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Can you unplug the TV for about 15 seconds, and then plug back in and watch the stand-by light. Tell me how many time the stand-by light blinks in regular intervals. If it doesn't blink at all, you need to change a fuse on the g-board. Once this is done run back through the stand-by blink light process, and more troubleshooting can be done if problem isn't already solved. If the stand-by light just keeps blinking with a count over ten just tell me, and I'll look for other possibilities.
THE RED LIGHT THAT BLINKS IS IT THE LAMP BOX THAT THE RED LIGHT BLINKS IN OR THE STAND BY LIGHT THAT BLINKS ? IF ITS THE LAMP BOX THAT BLINKS THEN YOUR LAMP HAS BLOWN AND NEEDS REPLACED YOU CAN FIND THE PART # FOR YOUR T.V. FOR A NEW OR REFURBISHED LIGHT IN YOUR OPERATING MANUAL AND WITH THE PART # BUY A NEW ONE OFF EBAY,ALSO YOUR OWNERS MANUAL WILL GIVE YOU STEP BY STEP INSTRUCTIONS ON HOW TO REPLACE IT AS THIS IS A COMMON PROBLEM WITH PROJECTION T.V.'S IF ITS THE STAND BY LIGHT THAT BLINKS I NEED TO KNOW HOW MANY TIMES IT BLINKS AS THAT'S A SELF DIAGNOSTICS CODE THAT YOUR T.V. IS GIVING FOR THE PROBLEM AND FOR SONY THERESE NO CODE FOR 1 BLINK OF THE STAND BY LIGHT.
One of the tubes are gone. You need to replace one. The easiest way is to disconnect the board from the tube. power it on and if the correct tube is disconnected, the TV will turn stay on. Research the problem a bit. This is a common problem
This is very common problem for sony. Blinking light is power supply problem need to replace two voltage reulators in supply and caps and sometime horz output.
Sometimes if you adjust screen voltage adustment on flyback just slightly it will fix it.
The constant blinking green light means that the TV is not booting up. This is a common problem on this set.You need to remove the shield from the DM board (standing upright on the left where the DTV RF connector is)and inside you will see the four leaky capacitors (1000 MFD 16 VOLT)replace them,plug the TV in and wait 70 seconds for the blinking light to stop,then turn on the TV.The hard part will be removing the board from the TV(lots of screws and connectors,takes time)
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