Question about InFocus LP70+ Multimedia Projector

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Lamp does not come on.

At power up, fans come on, but as soon as full power to the lamp comes on, unit powers off.

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There is a fix for that, but you have to be pretty good at soldering. if you are, try this: http://www.infocus.com/service/asc/communications/tech_notes/2006/09/tn495g.pdf

Posted on Oct 16, 2009

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1 Answer

Lamp replacement issue infocus in24+


either the lamp's seams aren't taped over with foil tape to prevent the premature shutdown due to the heat sensors being triggered, or the fan under the the colorwheel has stopped, maybe due to a piece of lamp from a previous lamp explosion being stuck in it, or the power supply/ballast is bad, or the eca on the engine itself is bad. The lamp is the easiest to try first. There should be foil tape over the seam on the side of the lamp you can't see when it is installed. If this doesn't work, take the front bezel off amd get where you can see the fan under the colorwheel and tunnel and power the unit up and see if the fan comes on. If it does thenthe eca on the engine or the power supply ballast is most likely bad and these are major repairs.

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My benq projector keeps blowing lamps.


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1 Answer

Lamp will not come on. Press power button, fan


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I am having the same problem now. I am currently trying to reset the timer...but have yet to successfully. But I do think this is the solution.

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Panasonic PT43LC14 blinking green light on power button


Check your FAN if fan does not work Lamp will not come on ,also Lamps only last 5,000 up to 8,000 hours so every hour that set plays the lamp timer is counting .Go to E-Bay you can find lamps 99.00

Dec 03, 2008 | Panasonic PT-43LC14 43" Rear Projection...

1 Answer

Panasonic large screen Model # PT-61LCX65


Here is the proceedure to replace the lamp and reset the lamp hours.
Lamp Replacement Procedure:
1. Press the POWER button to turn off the power.
2. Wait for about 1 minute until the cooling fan stops.
Note:
The lamp cooling fan will continue to operate for about 1
minute after the power is turned off. Do not unplug the AC
Cord from the outlet until the fan has stopped. Avoid
interrupting the power by using circuit breakers or switchable
power strips.
3. After the cooling fan has stopped, unplug the AC Cord from
the outlet.
Note:
Please wait more than one hour before replacing the lamp.
[ Forced cooling function ]
If you need to replace the lamp more urgently:
- The Projection display has a forced cooling feature.
After the POWER button is turned OFF, and during the
first minute of the normal cooling fan operation, press
the VOLUME UP button on the unit and CH UP key on
the remote at the same time for more than 5 seconds.
The cooling fan operates for about 10 minutes. (LAMP
LED will flash 5 times every 5 second and POWER LED
will flash red for 10 minutes.)
4. Remove the Front Cover Unit from the latches.
5. Turn the Knob to the left.
6. Pull the Lamp Cover out.
7. Loosen the Screw on the Lamp. Then, pull the Lamp.
Note:
Because the Lamp may still be hot, use caution when
handling.
8. Install the new Lamp, and tighten the Screw.
9. Install the Lamp Cover, and turn the Knob to the right.
10. Install the Front Cover Unit.
Lamp Time Reset Procedure:
Be sure to reset the Lamp time to "0" after replacing the new
Lamp.
1. Plug in the AC Cord, and turn on the power by pressing the
POWER button.
2. Press and hold the VOLUME DOWN button on the unit and
the SPLIT key on the remote together for over 5 seconds
in power on condition.
When the reset is finished, the display will indicate that the lamp hrs have been reset to 0 and the LAMP LED goes out.

Jul 26, 2008 | Panasonic PT-61LCX65 61" Rear Projection...

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Hi Wayne

It is normal for the lamp's fan to start running , but should actually happen within 15 seconds of starting up. Try changing the lamp's fan and if the problem still persists then you will have to replace the Ballast ( lamp's powersupply )

Mar 22, 2008 | Compaq MP2800 Multimedia Projector

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