Question about Mitsubishi WD-62525 62" Rear Projection HDTV
First : if you just replaced 1 cap it is a good idea to replace all four; and if the green light does not stop blinking (it is the FMT booting up) you will not get the 3.3 volts.
Some information for you that you may or may not know: all these sets are failing with three primary boards--the power supply board, the FMT board, and the DM board.
It has gotten so bad that about 2 months ago Mitsubhishi began a chassis replacement program---entire replacement chassis that wholesales for about 200.
If you have the assembly instructions you can see where the other two boards are---the problem with these sets is if repairing the power board fixes it, there are dozens of surface mounted caps on the other two boards mentioned that also start to fail, fix one board and a few months later one of the other two go.
I presume you also followed the instructions to unplug the card reader located at the front of most of these sets as it can (not often) cause this problem.
You may also want to at that time unplug the keyboard and set if the set will turn on--once in a while the actual reset button will be bad--seen three of them.
Considering how much time is involved to get this set apart if it was not the caps etc on the power board I would at least look into the chassis replacement----these sets were not one of Mitsubishi's finer design ideas.
Let me know if you have questions.
Posted on Jan 31, 2010
Flashing green light shows TV got some problem, thats it.
Now in what section/ circuit it got problem, there is procedure to read out error code and check it in error code list to check listed sections.
All this info are available in service manual including part number list, schematics, exploded views info, that can be downloaded from HERE for small fee.
Below is procedure, how to activate error code operational check...
The TV must be in “Shut Down” and not manually switched Off, to perform the Error Code Operational Check. When the TV is switched Off, the code automatically resets to “12” No Error.
Press the front panel “DEVICE” and “MENU” buttons at the same time, and hold for 5 seconds to activate the Error Code Operational Check. The LED will then flash denoting a two digit Code.
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. Example: If the Error Code is “32”, the LED will flash three times, pause, and then flash two times.
• The Error Code is repeated a total of 5 times.
Now you have error code, check it in list...
12 No error detected
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chassis Fan failure
36 Exhaust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Excess Lamp Temperature
39 Excess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disconnected
Hope this info will help you.
Posted on Jan 30, 2010
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Posted on Jan 02, 2017
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