Question about Panasonic PT-LB20NTU Multimedia Projector

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Panasonic Projector won't stay on

I have a panasonic projector model PT-LB20vu. I push my red light for it to come on, it won't. However if I unplug it and plug it back in , and push the red power light.. it will turn Green and power up for about 2-3 seconds, then it goes back to the power off mode where the power button turns red.

It worked the other day. We just mounted it on the ceiling and now I am having this problem

Thanks

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5 Suggested Answers

dhiman
  • 115 Answers

SOURCE: Panasonic PT-AX100

Hello

Check the process of Power supply and the outputs. powerup the projector the replace the faulty gear assy or repair the same.

viren

Rave Services India

Posted on Feb 07, 2008

  • 1 Answer

SOURCE: PT-LC50E LCD Projector

With power available at the projector and the lamp off (projector off) - hold the input button on and press the power button on and hold for 5 secs. This will reset the lamp timer to zero.

I wish they could have stuck this in the operators manual.

Posted on May 27, 2008

SOURCE: error in panasonic lcd projector/projecteur lcd model no PT-LM1E-C

ESTOI BUSCANDO MANDO PT-LM1E-C

Posted on Jun 08, 2008

  • 1 Answer

SOURCE: Panasonic projector PT-L78 lamp reset

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.

Posted on Feb 25, 2009

Motobias
  • 6 Answers

SOURCE: Faulty Panasonic Projector

90% that this is a bad psu !

had mine fixed today with used psu from ebay.
try to find a faulty pt-ae900 for a exchange psu !

60€ faulty projector + 60€ psu = 120€ for pt-ae900

hooray :)

cheers,

tobias

Posted on May 04, 2009

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1 Answer

How to do lamp reset on panasonic pt-lb50u projector.


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

Jun 18, 2016 | Panasonic PT-LB50U Multimedia Projector

1 Answer

BE HAVE A PT-L720U PANASONIC PROJECTOR AND HAVE NOW REPLACED THE BULB. THE RED INDICATOR LIGHT IS STILL ON AND IT WILL NOT POWER UP WHEN PUSHING THE POWER BUTTON... HELP...


Your projector key pad is locked. Know you can use remote control if you don't have then you hold down the MENU and ENTER button together 5 seconds then press Power key if problem not remove
repeat again

Jul 02, 2011 | Panasonic PT L720U Multimedia Projector

1 Answer

I have a Panasonic PT-D5500U. We replaced the lamp, and then shortly thereafter, whenever we turn on the projector the power lamp goes from green and shuts off and blinks red three times continuously. ...


the problem is a known "bug" by the manufacture, which is due to low temperature issue that's detected by the processor of the projector. it will require a firmware upgrade. i'd recommend getting in contact w/ their tech support.

http://www.panasonic.com/business/projectors/ss_techsupport.asp

Jun 03, 2011 | Panasonic PT-D5600U DLP Projector

1 Answer

My PT-D5500U will show the red light when the power is plugged in, when I turn on the other power the power light will go green for a moment and then start blinking red. No lamp comes on and the fan gets...


How many hours are on the projector? I would say that you need to change lamps first. Unfortuantely, this series of Panasonic is known for lamp and lamp circuit issues. There are runs of bad lamps...try 2 new lamps if possible or consult an authorized service center.

Good Luck

Aug 11, 2010 | Panasonic PT-D5500U Multimedia Projector

1 Answer

Panasonic PT-AE900E Projector not working???


I have this exact problem too, so anyone out there that can help it would be great!

Mar 03, 2010 | Panasonic PT-AE900U Multimedia Projector

1 Answer

Just replaced bulb and Lamp red light still comes on when you plug in the Panasonic PT-LB1OU lcd projector. Screen display states: Replace Bulb


Replace power board: ETXMM519MBGB
Or replace transistor Q107 on this board with a typical pnp for switching power supllies,there's not a part number for it on the manual.

Dec 15, 2009 | Panasonic PT-LB10U Multimedia Projector

1 Answer

Panasonic PT-53TWD63, TV will not turn on, Red power light blinks


It is most deffinately a convergence chip issue. The die for no reason. They can be bought online for around $10 dollars and anyone with experience with soldering can replace them pretty easily. I have done it.

Feb 03, 2009 | Panasonic PT-53TWD63 53" Rear Projection...

2 Answers

Faulty Panasonic Projector


90% that this is a bad psu !

had mine fixed today with used psu from ebay.
try to find a faulty pt-ae900 for a exchange psu !

60€ faulty projector + 60€ psu = 120€ for pt-ae900

hooray :)

cheers,

tobias

Dec 31, 2008 | Panasonic PT-AE900U Multimedia Projector

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