Had a similar problem when there was a power outage.
Tried many suggestions , and eventually figured out a simple solution. Unplug ALL wires entering the tv. The only cord left should only be the power cord. Unplug the power cord for roughly 10 minutes and then replug only the power cord. You will see the red led light on the bottom left corner of the front of the tv turn blue and thats it. You may have to hold the power button while pluging it back in but both solutions worked , and you will have to reset the settings.
If stay sound, need testing LED strips. Located in display panel. How to fix LED TV Black Screen No Backlight Problem TV disassembly and...
SOURCE: Power/Standby light blinks green then screen goes blank (off) for
I have a similar problem. Just found out a possible solution yesterday. I am waiting for my lamp but here's what you need to do if you have replaced your lamp. Go into self diagnostics mode: Switch of your TV via remote, you will see red standy by light. Now,on the remote press "Display"=>"Channel 5"=>"Volume Up"=>"Power Button". All these keys need to be pressed within 3 seconds. You will now enter the diagnostics mode. Press "Jump" on remote (bottom right) 3 times and then press "Channel 2" 9 times. The screen will display your current lamp hours used.
In order to reset your tv to factory settings and for the new bulb to work you must reset this timer or else your TV will assume you are still using the old bulb and will automatically kick in "over protection mode". So here's what you do once you do on the lamp hours display screen. Press the "Channel 3" button on the remote 3 times then "Mute" then "Press Enter" to reset the timer to zero. Your TV should now work as normal. And remember, whenever a part is replaced all factory settings must be reset to zero. To do this, follow "Display"=>"Channel 5"=>"Volume Up"=> "Power Up" to enter service mode. Finally, press "Channel 8" and then "Enter" to put the TV back to factory settings.
The above mentioned is usually performed by a service technician and they charge somewhere around $95 diagnostic fee. You just saved this charge. If you see flashing red lights count them when they flash in sequence. This is a code for the techs to tell them what is wrong. These flashing red lights sequentially flash from 0 to 10 times to identify a problem. Usually, when the bbulb goes bad the only thing that might need to be replaced would be a "lamp Driver" aka "Power Block Assembly" $116.25 online from Sony, or the ballast. Sometimes, if you do not have a video a Thermal FUse can go bad which only costs $4.80 for the KDF60-XS955 but the techs will charge you over $300. You can do this yourself if you can get your hands on a service manual.
Hope this info helps.
Good Luck to you all.
SOURCE: westinghouse LTV30w2 has blank screen and audio
What you have is a darfon V144 board (junk). it's a simple fix if you know how to use some basic tools and a soldering iron. Get an led (i used digikey's PN: L10041-ND) and solder it from pin 10 to pin 16 on the OZ960 chip on the inverter board. If you need the chip layout type "OZ960 pdf" in google. Hope this helps.
SOURCE: westinghouse 42 inch lcd flat screen tv
only get sound from my 42 lcd screen fro westinghouse, no display
SOURCE: westinghouse 32 inch screen goes blank
Westinghouse LTV-32w1
replace capacitor c162 on power supply
power supply was a delta electric dps210ep-2c rev01
reheat any solder joints that don't look 100% as well .
such as c310 .
this is a known working fix . try before you buy a supply .
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