20 Most Recent Panasonic PT-L785U Multimedia Projector Questions & Answers


How long ago did you replace the lamp?
If the lamp has not actually been replaced and you are attempting to bypass this safety feature then I have bad news for you. Once the projector determines current flow through the lamp has exceeded the threshold amount, it will put the projector into the mode it is in now - Critical Lamp Replacement. You can set the projector bulb to low power output and see if that allows you to reset the bulb life timer but, again, if you have not actually replaced the bulb assembly, you are in danger of the bulb bursting under pressure. This can actually damage the projector.

You can find the manual for your projector at

ftp://ftp.panasonic.com/projector/ptl785u/pt-l785u_oi.pdf

Panasonic... | Answered on Nov 01, 2017


Your projector need replacement of lamp unit if you don't want yet you just reset the lamp counter

procedure:
Power on projector
press MENU key
Press right arrow key to select Option
Press down arrow key to select lamp Hours
Press and hold down the ENTER key 5 second (lamp hour counter show red)
press POWER button to turns off the projector
now you power on your projector and no error displaed and no itself turn off after 15 minutes

Panasonic... | Answered on Apr 18, 2011


Look at the surface mounted connectors for the LCD panel ribbon cables.
You will notice that the leading edge of the connector closest to the ribbon cable where it enters is a different colour.
Generally its a light brown colour. you gently slide this brown piece towards the ribbon cable about 1mm forward until it stops. then the ribbon cable can be withdrawn away from the connector.
the green lcd ribbon cable is sometime inserted underside. the others above the brown piece.
Note which cables are above and which below when putting them back.

Panasonic... | Answered on Mar 11, 2011


The orientation of your projector can be setup from the "Option" menu. You may need to select the "FRONT" and "CEILING" options to display the correct orientation of the image.

Panasonic... | Answered on Oct 15, 2010


Hi, I don't know why Panasonic projectors seem to have this.. It could be heat related or a burn in. It is caused by a long time use maybe more than 3-4 hours of contineous use.

Please call Panasonic to help you solve this issue; here's the link : CLICK HERE

Panasonic... | Answered on Oct 11, 2010


Please service your projector.Check cooler RPM may be it has no standard RPM,or lamp thermostat over temperature.

Panasonic... | Answered on Dec 16, 2009


Press the MENU button. Use the < > arrows to get to the OPTION menu. Press the ENTER button. Select LAMP RUN TIME. Press and hold the ENTER button for about 3 seconds. The 'lamp time reset' will display. Press OK and press the ENTER button. This will reset the lamp hours as well as turn off the projector.

Panasonic... | Answered on Feb 25, 2009


if the lamp warning light is flashing, this indicates a defective ballast (lamp power module). if the lamp warning light is lit steadily, then the lamp would be at fault.

Panasonic... | Answered on Oct 31, 2008


1,turn on the projector 2,Press and hold the Menu button on the projector for about 15 seconds We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel,
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Panasonic Office... | Answered on Jun 12, 2019


1,Check the fans ,whether each fan is running,when you turn on the projector
2,if the fans run, then ,check the lamp or lamp ballast



I am an expert of repairing projectors for 19 years.
It is my pleasure to receive the message form you,
WhatsApp ID:+8613178867858
Skype:lampdeng@hotmail.com
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Email:jerry@lampdeng.com
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Mobile:+86 13178867858
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Panasonic Office... | Answered on May 31, 2019

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