Older medallion 55" 1080...switched itself

I would try the reset button in the front. Unplug the set push the reset and plug it back in.

hi there,

Check for bad solder on convergence module. May have bad stk's. Do not neglect looking for bad solder on dsignal and defl boards. Mitsubishi is very prone to bad solder.

`jack

~ Check the lamp hours ~ Normally it is 200-400 hours lamp life ~ BASIC USAGE: 8 hours/day ~ Reseat the lamp~ Consider replacing the lamp or it could be an Internal Problem

Bad capacitor syndrome. Search 'bad caps' and model and you will find on goog.

Watching the Masters and the top part of the tv the color went out it shows green and purple and top half shows double vision...

Please try the self check feature this set has:

when power light comes on and then goes off: On the front of the set press and hold both Menu and Input (or device) buttons both for at least 5 seconds and then release both.

The power light should blink a two digit error code--like--2 blinks, a pause, 2 blinks..........it will repeat the error code several times.

Let me know what you find and I will tell you what the error may mean.

If this helped you rate this solution as I do this here for free.

SD TECH

ONLY 1 of 2 things can cause this problem----

First thing to do is remove front speaker grill--it should pull out and is secured with plastic pegs--behind it you will find an inspection plate---Some of the medallion models have two small grills on either side and wood piece in the middle--all three will have to be removed.

Notice the one or two pairs of wires coming from the front keyboard of the set---remove the inspection plate and follow the wires to the right--you can unplug both plugs(most have two and they are marked with letters and different sizes so you cannot get them wrong)

The idea here is to remove the front keyboard with its reset button etc from the circuit---You will still be able to try to turn the set on with the remote---

These sets have a Receiver that is called a DM board--(large metal box to the left as you look from the back) and if the power goes out the green light will blink for about 70 seconds and then go out---it is the Receiver booting up. It is called the DM board.

If disconnecting the keyboard allows the set to turn on--you have a bad reset switch and two choices---either operate the set only with the remote or to remove the front screen and get at the reset switch (it is tiny) and remove and/or replace it.

If disconnecting the keyboard does not restore the set to operation---the receiver is bad---there are 4 or more caps and some pico fuses that can fail in that unit---Mitsubishi no longer sells or repairs these--if it is bad and not the caps there is a company you can send the unit to and have it repaired--if you need to know their name let me know---

You can call them and get a quote for repairing the receiver. There are also sites on the internet selling a kit for this repair.

If this information has helped you rate this solution as I do this here for free.


Let me know what more information you need--I am here to help.


SD TECH

set has a self diagnostic---after set does shut down press and hold MENU AND DEVICE(INPUT) buttons on front of set for 5 seconds----if 2 blinks, a pause and 2 more blinks: this is short protection error code---The set does use 2 Stk394-250 and each is protected by a pico fuse in the power supply---if either fuse is blown the set will shut down(it detects no voltage or missing voltage;) It is not uncommon for a shorted IC to cause this problem; if you locate the STK's look carefully at the resistors around them---if any are discolored or burnt---you have found your problem.

Are you sure its the right remote? Verify TV mode on remote if equiped with mode switch. Drain the remote by removing batteries.

my mitsubishi medallion tv wont power on.
all I get is a blinking light. How can this be fixed