Question about Mitsubishi LT-46144 46 in. LCD HDTV
LT-55164 not receiving any input to screen, default setting display screen image and sound
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
Posted on Jan 21, 2016
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Posted on Jan 02, 2017
i just got the same tv today and the same thing happend to me but it happend with the satellite input and i did not have the blue vertical lines i just had a black screen and sound. i unplugged the hdmi cable that carried the signal to the tv and plugged it back in and i had a picture. hope this helps
Posted on Aug 05, 2007
Go to Mitsubishi support page, look at warranties (scroll down) and see if your model is under the extended warranty section. Then if so have a tech repair person come look at the picture and order the parts while you keep the tv. Parts and labor are covered.
Posted on May 19, 2009
SOURCE: LT-46133 FLICKERING BLUE LIGHT
That problem is usually cause of faulty capacitors on the power supply board..
Just follow this instruction to fix your TV..
1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter
Posted on Jun 19, 2012
tried to get with reset, if can not resolved do this. hooked up with a power PC speaker at the audio out jack. then turn on the tv unit as well as the powered pc speaker and make some volume adjustment. if you can get sound there the cause will be the sound amplifier circuit ( amplifier ic ). if you can not get sound there the problem will be in the sound processor at the main board.
Posted on Sep 17, 2012
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1 Press MENU to display the MENU screen, and then
press [=> or <=] to select "System Options".
2 Press [Up or Down] to select "Input Terminal Setting", and
then press ENTER.
3 Press [Up or Down] to select "PC input", and then press
4 Press [Up or Down] to select a specifi c adjustment item,
and then press ENTER to set each item.
5 Press [Up or Down] or [=> or <=] to select or adjust the desired
setting, and then press ENTER.
Adjusting the PC Image
Auto Sync. (for Analog PC Input Mode Only)
For automatically adjusting the PC image.
Yes: Auto Sync. starts and "Now adjusting the image."
No: This function does not work.
When "Auto Sync." is successful, "Completed" displays. If
not, "Auto Sync." failed.
"Auto Sync." may fail even if "Completed" displays.
"Auto Sync." may fail if the computer image has low
resolution, has unclear (black) edges, or is moved while
executing "Auto Sync.".
Be sure to connect the PC to the TV and switch it on before
starting "Auto Sync.".
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