The projector shut off during operation

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power supply make the projector turn on. Setting up. ?This product is also designed for IT power systems with a phase-to- phase voltage of 220 to 240 V ...
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Check the voltage at the lamp input from the ballast after connecting projector to mains supply. (Warning: Do not switch on the projector while checking the voltage. It will damage your multimeter) The lamp connection shall be removed. If the voltage is around 60 to 80 volts AC, then your ballast is OK. Check for fragments inside the lamp.

sonsunny

Check out the Power supply to the lamp . It must not be high . . Check if the voltages are correct to the lamp's unit and it's PCB [printed circuit board]. I recommend using a service manual .
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Here is how to replace a projector's bulb correctly :

1:Make sure that your power switch is off and that the power cord is unplugged from the electrical socket.
It is also wise to unplug any other cables and label them in order to restore them in the right way once the lamp is replaced.

2:In order to see the lamp, remove the access handle on the outside cover. You may need to use a screwdriver.

3:Pull out the used lamp and clean the relevant parts using micro fiber products and not paper.
Please note that in some projectors a small inside filter should also be replaced.

4:Insert the new lamp into the projector carefully avoiding touching the glass of the lamp itself.
Touching the lamp will deposit skin oil that will likely damage any new lamp during use.




5:Reassemble the access panel, replug the cables and power up the projector.

Things You'll Need:
new projector lamp
screwdriver
micro fiber duster
Warning:
avoid touching the bare projector lamp
I hope this will help .

if just the lamp turns off and the rest of the projector is running, it's time to change the lamp. if the whole projector turns off (not goes through shut down), it may be a power supply problem.

Hi Ash, check your manual as by memory you can do this by a 2-3 button reset via the remote control. Regards Kevin Andreassend. http://www.iceav.co.nz [email protected] +64-9-4142348

overheating or power supply problem.

1-check the counter reading of lamp to see if it is in the right age of lamp or not.if it is in right age the problem still in power unit or in ballast.

Hello!

After 2 years I finnaly solved the problem. There was a flaw in the lamp´s temperature circuit. A technician disassambled my BENQ PB8253 unit and fixed the problem. Charged me US$ 75.00. I´m in Brazil.

Hope this can help.

FROM THE PROJECTOR

Press and hold the EXIT Button for 3 seconds to display the total used lamp time.

Then Press the MENU button on the projector during the lamp hour message.

The press the <-- or ---> button to reset lamp hours.

Press EXIT to leave.