Question about Panasonic PT-45LC12 45" Rear Projection HDTV-Ready Television

3 Answers

I have a panasonic pt-45lc12

We turn it on and the green on and off light just blinks on and off but the tv does not come on we hear the fan but no picture, we had moved it to another location when this started. the lamp looks good and is not too old. what do you think could cause this? how do I tell if the lamp has gone bad or could it be another problem.

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  • drgnflie Jun 23, 2008

    we have the same problem....we turn it on and the green on and off light just blinks on and off but the tv does not come on we hear the fan but no picture,
    we had moved it to another location when this started. the lamp looks
    good and is not too old. what do you think could cause this? how do I
    tell if the lamp has gone bad or could it be another problem.

  • wsheehan Jan 29, 2009

    where does the thermal fuse get installed?

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3 Answers

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We bought a $2.00 thermal fuse at the local Radioshack, installed it and my tv works just fine. We were told it was the lamp, the projector or the tuner. It was a $2.00 thermal fuse.

Posted on Nov 05, 2008

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We have this same problem and called a repair co. to fix, they said it was the tuner kit ($400) or
projection kit ($800). We haven't made the decision to fix because with labor cost we can buy a new
tv. We would like to find a place that sells the kits used and a manual so we can fix it ourselves.

Posted on Nov 01, 2008

  • tagliente_j Nov 30, 2008

    The thermal fuse worked for us also. Radioshack didn't have the right temp rating so we went to a place called Fistells, they didn't have a 115c, so we installed a 128c, it works.

    I want to thank you for this solution, it saved us allot of money.

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If you are not a tech you don't want to mess with the voltage that feeds the lamp. The vibration of moving the set can cause the lamp to go bad. blinking LED is usually a sign the lamp is bad. It is a good Idea to open the lamp door and then close it again to make sure the door switch isn't the problem

Posted on Jul 25, 2008

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Posted on Jan 02, 2017

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It looks like a problem with a tube (projector light) I suspect the green one. Pay attention to flickering on the lights and post me the results. 

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I have a panasonic pt-56dlx75. the lamps are okay i had them checked but my tv will not turn on, no blinking red lights just a green blinking light in the power button. I can also still hear a fan working...


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having the same problem, after some research, came across this: http://www.fixya.com/support/t142873-panasonic_pt40lc12_blinking_green_power

Not a tech, so I'm going to look into it further on how hard this is to do.

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It sounds like a bad lamp. Lamps normally have a 5,000-hour life. Looking at the lamp can tell you if it’s bad if it looks burnt, but not always. Your Panasonic TV is also known for having failure of the ballast, which turns the lamp on. 95% of the time it’s the lamp, trouble shooting the ballast is a little more challenging.
The lamp replacement is a very simple process; instructions are in the TV’s owner’s manual. Call the factory, they will send you the lamp to your home with complete detailed instructions.

Good Luck, Big Irish.

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