20 Most Recent Panasonic PT-LB50U Multimedia Projector Questions & Answers


To reset the lamp hours, turn on the projector. Then press Menu and use the Up/Down arrows to highlight Options. Press Enter then highlight Lamp Runtime. Press and hold Enter for 3+ seconds until the Lamp Runtime screen is displays. Press the Power button (any other button cancels the reset). When the Power button LED turns red, unplug the power cord to the projector. You can either use the remote or the controls on the projector. Reconnect the power cord after a few minutes.

The reset instructions are on page 62 of the user manual. The manual is available from Panasonic here: https://support.panasonic.co.nz/docstore/PT-LB50U%20Operating%20Instructions.pdf .

I hope this helps.

Cindy Wells

Panasonic... | Answered on Jun 18, 2016


lamp bulb broken or bad connection to source

Panasonic... | Answered on May 27, 2014


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Panasonic... | Answered on Feb 11, 2014


I have done this on several of our PT-LB50U's with sucess every time.Remove lamp cover and lamp.Then remove top of case by removing 6 screws on bottom.Remove metal shroud that would cover lamp 2 screws and remove 2 screws that hold lamp plug and move it away.You will see a little blue lever for saftey switch move it back and forth from top and bottom put back together and should turn on.

Panasonic... | Answered on Sep 15, 2013


Is the picture a perfect rectangle shape on the screen. If not then either adjust the angle of the screen, or use the keystone function on the menu to correct it.
Does it still not focus correctly after doing this

Panasonic... | Answered on Mar 16, 2011


There are three temp sensor inside the projector and now your projector need full service but if the air filter becomes clogged with dust, the internal temperature of the projector will rise, the TEMP indicator will illuminate and the projector's power will turn off (the TEMP indicator will flash after the power is turned off) The air filter should be cleaned every 100 hours of use.
If you clean the filter with a vacuum cleaner to clean off any accumulated dust. then your projector working normally

Panasonic... | Answered on Jan 25, 2011


Other then POWER BUTTON light there are three lights more
1. lamp indicator
2. temperature indicator
3. computer input
witch one light is flashing RED or illuminated RED with POWER BUTTON orange light.
If LAMP INDICATOR light is illuminated RED than lamp runtime has reached 1800 hours. but projector still working.
If LAMP INDICATOR light flashing RED than lamp circuit failure, or abnormal function or lamp unit is damaged. In this case projector doing the same behave just like your projector.
if TEMPERATURE indicator illuminating RED the projector still projecting and if flashing RED than turned of itself

Panasonic... | Answered on Jan 21, 2011


The Panasonic projector PT-LB50NTU or E have two type of data inputs.
One is RGB or VGA cable and second is VIDEO cable. If your IMAC have video or vga output than you can connect.

Two type of cables witch are using with projector good_help_0.jpggood_help_1.jpg

Panasonic... | Answered on Jan 21, 2011


All you need is in the manual.If you dont have a manual ,
check their website and do a search on your model number.
Download is free.

Panasonic... | Answered on Oct 11, 2010


Have you installed the lamp?

Panasonic... | Answered on Dec 06, 2009


E2-01 sounds like a tray 1 lift malfunction. These machines use a lift motor encased in a plastic drive gear casing. Usually something inside the casing breaks, This usually happens in trays that have Ledger or Legal paper installed. The weight of the paper can cause these gear packs to break. Also if the customer loads letter paper in a tray set up for larger paper sizes, the paper can fall back causing the gears to break. We normally replace the whole lift motor assembly.

If there is more then one paper tray, you can pull tray 1 out, (the code should not appear with tray 1 open. You can at least use the manual feed to keep them going until you can get the part.

Panasonic Office... | Answered on Oct 10, 2017


Google it or check with Panasonic website

Panasonic Office... | Answered on Oct 07, 2017

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