Hello
Its power supply section is faulty. That is why you do not get the green light energized. There are 8 output voltages emerges from it, which goes to different circuit boards inside it. This is a very complicated ciruted board, and should be worked very carefully. You must have sound knoledge in switching type power supplys [SMPS] to go forward. You must be very causious with working with this section as the mains power supply comes to it and switched by an IC switching regulator. All parts of this chasis will be "Live" and dangerous to touch. Let it get repaired by an experienced service techinican of by the authorised service center. OK.
If you want to do it by yoursef, you must have the ability to follow its schematic diagram [circuit diagram]. You must ahve all serviceing equipments, and a good quality digital mulimter also. Do you have all these, send your email address to me by FixYa comment box. I'll send a copy of the schematic diagram of your Mitsubishi Tv . I can't send it to you by this site, because it doesn't allow me to send larger Adobe Acrobat Reader format files. OK.
The cost may differ to the hardness of service; and the cost of replacing components. It cannot be predicted. OK.
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Yes. It would have been nice to know the average repair cost for this type of repair to be able to make the next decision.
Thanks - this repair goes beyond my abilities.
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