Question about Panasonic PT-LB20U Multimedia Projector

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Image turns green when switch to RGB signal on Panasonic PT-LB20U

The image is fine on video input but when the iput is changed to RGB, the image turns green.

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How much of the image turns green

Posted on Feb 28, 2011

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Is Panasonic projector PT-LB20U compliant with HDCP?

Since the PT-LB20U only has VGA, S-video and composite video inputs, it isn't HDCP compliant. You would need a device with DVI (sometimes), HDMI, or DisplayPort inputs. See page 15 for the connections available on the projector.

Panasonic has the manual for the projector on the product page: . The direct link to the manual is .

I wish that I had better news for you.

Cindy Wells
(the high definition copy protection details require the digital video signal capabilities of the newer inputs. Most digital to analog converters (HDMI to VGA, for example) do not support HDCP.)

Nov 26, 2015 | Panasonic Multimedia Projectors

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If it's on HDMI input, then the wrong setting of RGB/YCrCb

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1 Answer

How do I reset the lamp hours on the Panasonic LB20u projector.

Press the MENU button to display the "MAIN MENU", and then select "OPTION".
Press the ENTER button to display the "OPTION" menu, and then select "LAMP RUNTIME".
Press and hold the ENTER button for approximately 3 seconds.
The "LAMP RUNTIME" will change to "TIME RESET [POWER OFF]".
Turn off the power and disconnect the power cord.
This will reset the cumulative usage time for the lamp unit to "0".

Oct 25, 2010 | Panasonic PT-LB20U Multimedia Projector

1 Answer

I can't get any red in my displayed image. I have

The red lcd has gone bad...change the lcd...and it will work..

Jul 29, 2010 | Panasonic PT-LB20U Multimedia Projector

1 Answer

How to check the lamp of panasonic projector PT-LB 20U?

Plug it into another PT-LB20U machine, and see if it works

Jun 14, 2010 | Panasonic PT-LB20U Multimedia Projector

1 Answer

Computer running vista- no picture being projected

try another computer and see if the vga input is OK.
If it is then set the vista screen resolaution to 640x480 and connect a spare computer monitor on the pc vga out and check that the video is coming out the pc.

May 12, 2010 | Panasonic PT-LB20U Multimedia Projector

1 Answer

Distorted picture.

Is the menu text clear on the screen, when it's focused correctly. Or is that also distorted.
If the menu text is OK then the picture signal is dodgy. could be due to a bad earth lead on the video cable.
Is it distorted on all signal inputs

Oct 30, 2009 | Panasonic PT-LB20U Multimedia Projector

1 Answer

Panasonic PT-AE900U

Very confusing posting !

RGB input for DVD Player ?

HDMI input missing ?

Apr 13, 2008 | Panasonic PT-AE900U Multimedia Projector

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