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I have the Mitsubishi HD 1080 series when i hit the power button the green LED light comes on and then the power light turns back off what do I do

Posted by John Martinez III on

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NoName Jack

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  • Mitsubishi Master
  • 1,150 Answers

Hi John

Check the switch mode power supply inside the TV.
Caution.... lethal voltages

The power button is digital these days. That is... it does not have the AC power directly connected to it. Like a normal appliance.
It's a Computer.
Nowadays, the switchmode power supply module converts the incoming AC power to the lower DC voltages required by the other circuit boards.
It uses lots of Electrolytic Capacitors to clean up noise in the DC power. Being Electrolytic they are prone to leaking & bulging so they don't do their job. They won't hold a charge. By pulling the plug and restarting, you have found a way to overcome the problem. But only temporarily. When the Cap goes fully bad, you won't be able to start the TV any more.
*************************************

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.
If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.
If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).
Most of the caps that go are 5v to 25V 1000uF or 3300uF.
Replacement Caps can be slightly higher values (not lower) depending on available space.
Also... a higher temperature rating is beneficial.

See Cap Replacement Here
NOTE: Even when Disconnected from the Mains.... Capacitors on the SwitchMode Power Supply board on the 110vac / 240vac Mains Side....can supply a shock hazard to unwary people.
The DC Side is far safer at 5 to 20v
But... There is no Really High 15 to 25Kv inside Digital TV's any more. So... You don't need to leave TV disconnected for a day to discharge these voltages as stated in the attached video.

Samsung TV Power on Problem Capacitor Replacement

How to Repair Your Plasma TV With Blinking LED

How to Replace an Electrolytic Capacitor

Posted on Jan 03, 2016

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5 Related Answers

Anonymous

  • 1142 Answers

SOURCE: Mitsubishi WS-55857 won't turn on

Thank you for posting your concern details however i would be needing few more details from your side if necessary and allow me few mins to come up with the resolution.

Posted on May 19, 2008

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Anonymous

  • 1 Answer

SOURCE: Mitsubishi Medallion HD 1080 model ws-48413

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

Posted on Mar 22, 2009

Anonymous

  • 81 Answers

SOURCE: mitsubishi 1080 hd ws-65809 wont power up

This issue is almost always caused by a faulty Convergence IC inside your TV. These chips heat up and can become damaged over time. The most common cause I have seen for the picture distortion is the heat of the Convergence IC weakening the solder connection to the TV circuit board. If you look on various messages board you will see people rigging wooden dowels and other items to apply pressure to the chips in order to correct their picture issue. This works because when the solder joint is weakened the chip becomes loose and vibrations or pressure will cause it to work or not work correctly. Aside from all that information the correct fix is to have the IC chips replaces on your TV.

The solutions for this issue are as follows:

1. located a tv repair shop that will replace the parts for you. I had the same issue with my 65" Tv and the quote was $350 for the labor and parts.


2. You can ordered the IC replacements yourself online by going to google and looking up a reseller of the STK392-110 Convergence IC that is inside your model TV. You will need 2 of them and they cost around $6 each. If you have the soldering skills to remove the old chips and install the new ones this is by far the most cost effective route. It is a fairly simple process and guides can be found online.

Posted on Jul 23, 2009

Anonymous

  • 31 Answers

SOURCE: have a Mitsubishi Medallion HD 1080 Model WS-48413

~ 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

Posted on Jul 06, 2010

Anonymous

  • 2 Answers

SOURCE: my mitsubishi HDTV series 1080 will not power

i have the same exact problem. My mitsubishi HD 1080 series suddenly stopped working. when i hit the on button, the on-light goes on for a second and then goes right off. any luck figuring this out?

Posted on Jul 13, 2010

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Mitsubishi medallion hd 1080


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

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If set powers up for a few seconds (green power light) and goes out do the self check the model indicated has:

On front of set (not with remote) press and hold both the input and menu buttons for at least 5 seconds and release both.

Green 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 (if you have unplugged the set that will clear all errors and you have to plug it in and try to turn set on again---when it fails do the self check)

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On my HD 1080 when you hit the power button to turn on the tv the green light comes on for a sec. then goes out


peterqulb,

This could literally be anything but I have a tip at

http://www.fixya.com/support/r6396176-projection_tv_troubleshooting

which should help you with the troubleshooting process.

Thanks for using FixYa and for the great rating.

hardrocko

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check the convergence ic's unplug the main convergence board plug then try the set again if the set comes on get a convergence kit here
http://www.tvrepairkits.com/xcart/home.php?partner=larry


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Mitsubishi Medallion HD 1080 model ws-48413


my mitsubishi medallion tv wont power on.
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