Question about Panasonic PT-LB50U Multimedia Projector

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I push the power button it looks as if its going to start up then suddenly its stars blowing really hard and all 3 lights ( power, lamp , and temp) start blinking red

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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premtech
  • 934 Answers

SOURCE: PT54DL50

There is a problem in your 3.3v main line and until corrected it will not power the lamp. This isn't usually an expensive repair but one that a shop will need to do since most of the work will be in trace testing voltage and signal using a scope.
For future information only here are the blink codes for this unit:

1 | Load Shortage
2 | Over Volage
3 | Fan Sos
4 | Main 3.3v
5 | Lamp Disable
6 | Gc3fm-Iic
7 | Gc3fs-Iic
8 | Gc3i-Iic
9 | Color Wheel Stop
Hope this helps!
Bill

Posted on Dec 01, 2007

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  • 1 Answer

SOURCE: Red power button & "lamp" indicator blinks

Having similar issue with my PT-44LCX65. Lamp blew and replaced it (last month), never figured out how to reset timer. Now red indicator light blinks once every 5 seconds and after about 4 minutes TV goes black.... Any ideas?

Posted on Jan 12, 2008

  • 59 Answers

SOURCE: PT-60LC13

there are fans inside tv need to make sure they are clean and free of dust

Posted on Feb 05, 2008

  • 1 Answer

SOURCE: Power indicator light blinks orange times

sounds like the lamp faceplate is not screwed back in properly

Posted on Aug 06, 2008

  • 1 Answer

SOURCE: replacement lamp not working

It seems there could be a number of problems causing this. For the PT-LB10 series, there's a service manual at

http://owa.mellafeysalas.cl/dscgi/ds.py/Get/File-3457/PT-LB10_SvcMnls.pdf

You'll need to be handy with electronics, or know someone who is...

Posted on Feb 16, 2009

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Akai rear projection tv suddenly stopped working.


This set with Akai is actually made by Samsung (they own and use the Akai name).

If lamp light etc and you have heard a cracking sound it may be the color wheel.

You can remove the lamp and look where it faces--look and the wheel can be seen----is it shattered or missing plastic pieces?

The wheel commonly fails in this fashion and is turning at over 12,000 rpm. The set will detect if the wheel is stopped or moving too slow and just what you describe will happen.

Wheel is widely available and You Tube has video instructions for replacing them by model number.

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Heard a loup pop when I turned the tv on; the timer/lamp/standby/temp lights on the power on button are now flashing; when I pushed the power button again the lamp light on the power button flashes and...


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1 Answer

No picture and the power light blinks


A red blinking light could mean that the lamp timer is at it's limit and it is time to change the lamp. You will also have to reset the lamp timer by pushing and holding down 2-3 buttons on the tv or remote. Refer to your user guide for the proper way to reset and or change your lamp.

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No picture or sound after replacing lamp


Possible bad color wheel...

Pull the lamp out & look inside where the lamp sends the light-

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3 Answers

Need answers


The fan may have went bad. If it's out of warranty you may open it up and try and blow some dust out of the fan to see it that may do the trick if not it may need to be replaced. Westexaudioelectronics.com

Oct 04, 2007 | Televison & Video

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