Panasonic PT-LB50U Multimedia Projector - Answered Questions & Fixed issues

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

lamp bulb broken or bad connection to source

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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.

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

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

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

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

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.

Have you installed the lamp?

Send me your email and I will send you one.

Seems printer driver not installed properly. Uninstall the driver, restart pc, install driver again, restart pc. It should be working now. For further help, see page 4-1 of user manual, using your laser printer. PANASONIC KX-P4410 OPERATING INSTRUCTIONS MANUAL Pdf Download ' ManualsLib

I would look here; https://typewriters.com/categories/typewriter-supplies.html If they havem't got stock, I am sure they will know where to get one from.

Various ideas here. You don't explain how you know it has electricity? It is likely to be the transformer or the motherboard, how far into it did you check with your digital multimeter? https://www.google.com/search?q=Panasonic+electronic+typewriter+will+not+switch+on ..

See problem solving on page 184 of manual Problem Solving; Troubleshooting - Panasonic DP-8035 Operating Instructions Manual [Page 184] ' ManualsLib

Press the following keys: MENU, #, 9000, *, 655 code comes back replace the fuser unit

Press the following keys: MENU, #,9000,*,655. If Service Code 3 comes back replace the fusing unit (Hot part).

Does the machine say replace drum or toner. Two different units. If toner did refill or install a new toner. There is a chip on most drums and toner to tell the machine they are new. if you refill the toner the chip is still going to tell the machine it is used.

Check the draw one tray. Ensure paper is properly installed and check behind the draw as well

Print Head issue, was it replaced recently ensure it was connected properly, Print head houses the LASER that puts the image on the drum!