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TV Shutdown Hi, I have Mitsubishi WT A42 HD1080. When I turn the set on it powers up (green light on)for about 3 seconds and shuts down. I have read a few other psots with this same problem but Ive been unable to find any help.

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Mitsubishi's have an error code system (press both menu and input/device buttons on the front panel, the green light will flash a 2-digit code...(example one flash short pause two flashes=12 long pause then it will repeat four more times...error 12 is no problem found...the other codes are 21,22,23 and 24.........Good Luck.

Posted on Oct 01, 2007

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There is a problem in your powersupply. you will have to call tech. for it.

Posted on Sep 26, 2007

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I have a mitsubishi wt-42315. when i turn it on it shuts down right away. any thoughts?


Do the self check this model has.

When you turn it on and green power light goes out:

on front of set press and hold both the menu and input (or device) buttons at the same time for at least 5 seconds and release both buttons.

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

Let me know what error code you find and I will tell you what problem is.

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

SD TECH

Sep 20, 2010 | Mitsubishi WT-42315 42" TV

2 Answers

Mitsubishi


have you tried using your remote control?

does it shuts off?

its something to do with the circiut board of your tv. if not its simply the power switch of the tv. that can be replaced bby repair man.

Jan 27, 2008 | Mitsubishi WT-42311 42" Rear Projection...

1 Answer

Ws65909 powers off about 3 sec after power on


a code will always read 12-normal if you just plugged the tv in. it has to try to turn on then shut itself down to log a code. Or shutdown is caused by something the tv cannot detect . Or a front panel button has failed- does the green light turn on for a second when you hit the power button on the remote? if not try unplugging the front keypad behind the speaker cover.

Oct 06, 2009 | Mitsubishi WS-65809 65" Rear Projection...

2 Answers

2001 Mitsubishi 65 inch HD1080 rear projection. When I turn it on, green light comes on for 2 seconds then it turns itself off. No flashing green light like others I read about.


Ok, try this first. After attempting to turn on set after it shuts off push and hold the MENU and INPUT buttons at the same time on the front of the set for 10 seconds. This should acccuate the self diagnostics function in the micro and the power LED should start blinking a two sequence code. That code will narrow things down.

Jun 03, 2009 | Mitsubishi WS-65511 65" Rear Projection...

1 Answer

Turn it on and it shuts off in two seconds


Good Day, robertarlt;

Now that you've gone this far, youcan continue with this:
This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 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) 1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB (NOT SHOWN IN THE SCHEMATIC). 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. 3. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB.

If this is too much for you then call an authorized service center to repair your 2001 Model TV and have them give you an estimate.

Good Luck, big IRISH.

Jul 25, 2008 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Mitsubishi wt-46809 46in wont power on


You need to adjust the votages going to the crt's. As the flyback transformer starts to go out the voltages to the crts can go up and down causing the tv to shut off. It also causes red, green, or blue arced lines to show up on the screen. It can also cause some color fading in and out or flickering. Adjusting the voltages can fix the problem temporarily but in the long run it's a good idea to replace the flyback. Make sure you read up on how to do this safely.

Jul 21, 2008 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Mitsubishi Medallion power problems.


The set is going into shutdown because a problem has been detected inside. This prevents further damage. It could be anything from a shorted horizontal output transistor to a defective convergence IC. Without examining the board and taking measurements inside, it will be difficult to near impossible to diagnose this remotely. I would suggest that you invest in a detailed repair estimate that shouldn't cost more than $100 and report the results here. With that info, we should be able to walk you through the actual repair.

Dan

Jul 09, 2008 | Televison & Video

2 Answers

Mitsubishi model WT-A42


maybe theres aproblem between the power supply and in the horizontal circuit of your tv

Jul 03, 2008 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Mitsubishi WT-A42 projection 42" HD1080 series


It sounds like your regulator circuit is defective. Not an expensive repair, maybe $200.or a little more.

Apr 08, 2008 | Mitsubishi WS-65909 65" Rear Projection...

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