20 Most Recent Mitsubishi LT-46144 46 in. LCD HDTV Questions & Answers


Hi,
Nothing on all inputs would suggest the Main AV board not processing signals, if all other functions such as volume, menu access, on and off operate normally the power supply board is probably functioning OK. Have a look at shop jimmy for an idea on price and availability for Mitsubishi LT-46144 Boards and spare parts:

TV Parts Universal TV Stands DLP Chips ShopJimmy

Mitsubishi... | Answered on Jan 21, 2016


It won't go away, till you replace the panel.

Mitsubishi... | Answered on May 29, 2015


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Mitsubishi... | Answered on May 29, 2015


used to be that if the tv had artefacts you would say, is it near a strong source of magnetism but those days are gone. Nowadays Iwould say, if you have not moved it recently and the lines have just come up on their own check for sources of interference,switch everything else off and removee all peripherals to see if that sorts the problem, an attached device might be becoming faulty.
If that does not solve the issue it might be related to a setting that has been entered.
In that case reset the set to factory default through the option in the settings menus. If you have reset it and it still does the same thing have it looked at.
It might possibly be that there is a source of digital interference in your area also.
Good Luck

Mitsubishi... | Answered on May 28, 2015


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. http://electronicshelponline.blogspot.com/
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.

Mitsubishi... | Answered on Dec 08, 2014


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. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/

Mitsubishi... | Answered on Jul 18, 2014


I just bought an RCA TV and was ready to throw it out the window. Spent 2 days trying to set it up asking RCA 5 times for help and went online and still couldn't solve my problem.

If you are connecting your TV to a cable box, your channels are already there so you do not have to scan for channels.

Mitsubishi... | Answered on Feb 22, 2014


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

Mitsubishi... | Answered on Jan 14, 2013


Switch off TV manually, switch off power and remove plug and wait for sometime and retry.

Mitsubishi... | Answered on Jul 31, 2012


you can only get this part if you are a mitsubishi authorized servicer. not to mention, I think its more than the tv costs to buy

Mitsubishi... | Answered on Nov 29, 2011


Your tv's LCD controller board is faulty . Replacing the same should resolve the problem. It is inexpensive and easy to replace so let me know if you wish to do it yourself

Mitsubishi... | Answered on Aug 28, 2011


Intermittent vertical red, green or blue lines on an LCD panel indicate bad connections between the driver board and the panel - usually at the panel. The problem is repairable, but the price depends very much on where the connection problem is. In the worst case, you'll have to send it to a company like Moniserv that specializes in LCD panel service and spend a couple of hundred dollars to have the column driver board and its connections repaired.

In the best case, it may be sufficient to disassemble the set to get access to the panel, loosen the screws that hold the panel and connector board together, gently massage the problem area a bit and tighten the screws. This is a delicate task - sometimes you get more dropped-out lines than you had to begin with, and it may be necessary to repeat. Make sure that whoever does it observes electrostatic circuit protection procedures to avoid zapping the electronics.

Mitsubishi... | Answered on Jan 03, 2011


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:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, 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.


budmrtn_1.jpg

Mitsubishi... | Answered on Dec 15, 2010

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