Question about Panasonic PT-50LC13 50" Rear Projection HDTV

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Blank screen replace bulb did not fix the problem

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I think the problem is coming from your ballast board this is the power source to the lamp and if for any reason this board is too weak it will not be able to turn on a brand new lamp

Posted on Sep 14, 2010

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How to replace a bulb


Depending on the type of TV the backlight will usually be either LED or CCFL. If the backlight is the only fault then the TV will still have sound and a bright light from a torch shone at an angle onto the screen should show a faint picture. Repair of the backlight is not a simple task and could be a number of different causes. LEDs are unlikely to fail in such a way as to blank the whole screen. CCFL tubes can cause the whole screen to go dark but replacement is very difficult. I would recommend getting a TV repair engineer to fix it.

Mar 14, 2016 | Televison & Video

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Hello i have a toshib 42 rv530u lcd set and it just went blank on me after watching it. the sound is still heard but no picture


Either your screen went, the bulb went or the bulb's inverter went. Bulb replacement in LCD screens, especially this large, is a very sensative procedure and not recommended without years of skills. Replacement of the inverter board is easier adn do it your self would cost betwen 60 to 150 USD. If it is the bulb or the screen, it will be more cost efficient to replace the unit. screens for this would cost 300+ USD

Jun 29, 2011 | Toshiba REGZA 42RV530U 42 in. LCD HDTV

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Screen is totally blank at startup. HDD light blinks for a little bit, but screen stays blank.


1. Test using an external monitor. If it works, then either the screen bulb or the inverter board might be defective.
2. Test the inverter. Easiest way to do it if you have a good screen with a good bulb. Connect the good screen to the inverter board & test it. If it lights up, then the inverter board is good. If it did not, then the inverter board is bad & needs to be replaced.
3. If the inverter board is good, then we are left with the possibility that the screen bulb is bad. To fix this, we will need to replace the LCD screen.

Oct 11, 2010 | Dell Latitude D830 Laptop Computer PC...

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My laptop powers up but the screen is blank. I attached it to an external monitor and it proved that the laptop is functioning with an external screen. Is there a solution to this problem? TB


1. Test using an external monitor. If it works, then either the screen bulb or the inverter board might be defective.
2. Test the inverter. Easiest way to do it if you have a good screen with a good bulb. Connect the good screen to the inverter board & test it. If it lights up, then the inverter board is good. If it did not, then the inverter board is bad & needs to be replaced.
3. If the inverter board is good, then we are left with the possibility that the screen bulb is bad. To fix this, we will need to replace the LCD screen.

Oct 06, 2010 | HP ProBook 4310s Notebook

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My screen is blank. I can take pictures but I


There's no bulb to burn out. She may have yanked out the USB cord without using the "safely remove hardware" function. Now you need to reset the camera...go into the menu and find "reset" and follow the on-screen instructions.

Mar 03, 2010 | Cameras

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Blank black screen and audio is fuzzy sound


If the Bulb or ballast were bad the set wouldnt power up at all and you wpuld get a red Lamp light which would stay solid red. A blank screen with audio still functioning is usually meaning the Light engine or the Terminal 1 and Terminal 2 PWB have bad capacitors. Bad caps on the signal pwb can also cause the same issue.

Dec 01, 2009 | Mitsubishi WD-62525 62" Rear Projection...

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The screen lights up but no picture. I have cycled through the tv/video and channel manual controls and there has been no change in the blank screen. Any suggestions?


You most likely need to replace the Bulb. It is an easy fix that you can do yourself and will cost you $150 to $200 for the part.

Nov 14, 2009 | Sony KDF-E42A10 42 in. LCD Television

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BELL HOWELL 17462 PROJECTION SET TV SCREEN WENT BLANK


Do you still have sound? Can you see light at the back of the set when the screen is blank -if so the bulb is ok and you've just lost video.

Oct 14, 2009 | Televison & Video

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Screen light is blank, but all items are working.


You will probably need to replace the LCD to fix this issue, I broke my iPod LCD and replaced it myself of eBay. The bulb you speak of is all built into the LCD and has a tape/wire that connects to the iPhone to my knowledge and if I'm wrong please feel free to correct but as far as I know its all in the LCD.

Jul 31, 2009 | Apple iPhone 3G Black Smartphone

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