Question about Mitsubishi MDT461S 46 in. LCD Television

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Mitsubishi LT-46149 no video only sound

When I start up the TV I get video for about 2 secs then it blacks out. I continue to get sound regardless of which input. This occurs on my directv input, my Blue Ray DVD input and also the Wii input.

This happened all of a sudden in the middle of watching a movie. I have reset the TV, unplugged it and restarted ... bu the problem continues.

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  • jesseliu3247 Dec 09, 2008

    wow electronick .. I looked really close and yes your are right there is still video just the backlight is gone. The funny thing is it does come on for about 2 secs at start up. Anything I can do easily to reset this or it a repair thing?

  • thielectronick
    thielectronick May 11, 2010

    shine a flashlight on it.. its hard to see but you might be able to still see video there, but the backlight may be gone... is this your symptom?



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Having he TV replaced under warranty.

Posted on Dec 09, 2008


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I have a 52" Mitsubishi Lt-52244 TV which has sound, no picture but has images with the flashlight test. Which board/s should I replace?

That is an older model set that still has the backlight inverters. It may be one of those and it may be the power unit. Mitsubishi LT 52244 TV Parts

Feb 19, 2018 | Mitsubishi Televison & Video

1 Answer

Mitsubishi LT-46149 power lamp just flashes and tv will not turn on. Tried the reset and unplugged overnight, also I do wait for the "boot up" still just have a flashing power lamp. Any ideas?

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

Nov 24, 2014 | Mitsubishi LT-46144 46 in. LCD HDTV

1 Answer

Why my 52" mitsubishi Model LT-52151 has sound no picture

Go to the Mitsubishi website, download the upgrade, save it on a flash drive, plug it into your TV, follow directions provided on the website. If you have done this previously, check on website to see if there are any other upgrades, if not, repeat the previous one. This has worked for us. Good luck! Also where you bought the TV may be able to assist you. Mitsubishi will send you the upgrade on a flash drive for a charge.

Jun 07, 2014 | Mitsubishi LT-52151 52 in. LCD HDTV

1 Answer

Misubishi LT-46149 solid red light

Your TV is on stand by., you possibly have power supply board problem or main board.. you have to call a service

Jan 14, 2013 | Mitsubishi LT-46144 46 in. LCD HDTV

1 Answer

On a mitsubishi tv (LT-46149) the manual intructs us to wait exactly one minute for the LED green light to stop flashing and then its alright to turn on the tv, the problem is that the light wont stop...

It is possible that you have a bad power supply, or the TV has been hit by a small power surge and if you unplug the set from the wall for 40Min., it will rest back to normal.

Feb 06, 2011 | Mitsubishi Televison & Video

1 Answer

2 year old Mitsubishi LT-46149 46" LCD Flat Panel

Does it come and go? I would try reseting the ribbon cables between the LCD panel and the T-CON board first.
The Flexible Printed Circuit BoardS (FPCB) are ultrasonic welded to the LCD TFT panel, they are not SOLDERED on! The connections do get bad due to very delicate nature of how the LCD panels are made. You can also try squeezing the around the top area of the screen where the lines are to see if the lines go away.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.


Dec 14, 2010 | Mitsubishi LT-46144 46 in. LCD HDTV

1 Answer

I have a LT-46244 and there are two vertical black

No format burn-in if thats what you mean, tv needs to serviced. good luck Julio

Jul 23, 2009 | Mitsubishi LT-46144 46 in. LCD HDTV

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Mitsubishi LT- 46149 LCD TV turns on with pic then pic blacks

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Nov 11, 2017 | Mitsubishi LT-46149 46 in. HDTV LCD TV

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I bought floor model and need a manual

There might be some similarities in the manuals with these models (since they are the same brand of LCDs).

Apr 09, 2009 | Mitsubishi LT-46149 46 in. HDTV LCD TV

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