Question about Panasonic PT-40LC12 40" Rear Projection HDTV

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Panasonic hdtv i have a hdtv model # pt-40lc12 It will only do the green light then go back to red do not know how to check the bulb or know what to look for on it

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  • makeithappen Mar 28, 2008

    what do i do

  • karrick Apr 08, 2008

    THANK iTS NOT THE LAMP iTS THE CURCUT BOARD . THEY DONT MAKE THEM ANY MORE SO i NEED TO GET IT REBUILD FOR 500 DOLLARS.iT WAS A GOOD TV BUT CANT AFFORD IT THANK YOU FOR YOUR HELP

  • David Young Jun 01, 2008

    I have no picture, no sound. I replaced the bulb - no help. I have red and blinking green light - tells me I am getting power ???? HELP

  • David Young Jun 01, 2008

    I have no picture, no sound. I replaced bulb - no help. I have red and blinking green light, so I have power. Now what. Help. Thanks.

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It said to change the lamp and reset the meter. i changed the lamb but the colors still show on the screen, and the message still pops up. what could be the problem?

Posted on Sep 02, 2008

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Sent me the serial number, and I can check for any re-call ...

my e-mail is <ultraman_s@yahoo.com>

Posted on May 22, 2008

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Pull the left front panel off of the unit and you will find the lamp door behind that panel. It is very simple to pull the lamp and most times you can even see the element in the lamp has blown. You can easily buy and install the lamp yourself.

Posted on Apr 08, 2008

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Related Questions:

1 Answer

How do I replace the lamp in the Panasonic PT-40LC12 TV? and where is the best place to buy the cheepest and best lamp for the TV?.


you will have to open back of tv, then there is a door that you can open and pull out the bulb.
purelandsupply.com is usually the cheapest

Jul 09, 2009 | Panasonic PT-40LC12 40" Rear Projection...

3 Answers

The Power Light is Red


yeah, should stay red when unit is turned off, indicating there's power but it's doing nothing.

Per user manual:
Solid red - power off (standby mode)
blinking red - power off (now cooling)
blinking green - power on (preparing to light lamp)
solid green - power on

Mar 08, 2009 | Panasonic PT-40LC12 40" Rear Projection...

3 Answers

PT 40LC12 Panasonic


Problem is the bulb.
I had this exact same problem.  Even though the bulb appears to be good, it is drawing too much current to run properly, and the ballast is shutting it down.

Aug 03, 2008 | Panasonic PT-40LC12 40" Rear Projection...

1 Answer

Color's aren't true; red & green washed out


Sent me the serial number, and I can check for any re-call ...

my e-mail is <ultraman_s@yahoo.com>

Mar 11, 2008 | Panasonic PT-40LC12 40" Rear Projection...

3 Answers

Ballast problem on PT-40LC12


Sent me the serial number, and I can check for any re-call ...

my e-mail is <ultraman_s@yahoo.com>

Feb 01, 2008 | Panasonic PT-40LC12 40" Rear Projection...

1 Answer

Hd hook-up


The only HD connections for this TV are the Component connections on the back (red, blue, and green).
You use this connection with the red and white audio cable.

Nov 29, 2007 | Panasonic PT-40LC12 40" Rear Projection...

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