Our PB8220 DLP Projector was
plugged to the wrong voltage and the lamp power supply damaged (euc 250 p/01).
This is the one that drives the current to the Bulb.
Would you quote me one?
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Re: the projector shut off during operation
It is highly unlikely that you will receive any quotes here; this is a repair website, the only sales would be through links on Fixya pages.
I'm sure you can get info on price and availability at the BenQ site:
Benq's US homepage
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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.
The clicking sound is the high voltage power supply trying to ignite the gas in the lamp. The lamp is not firing and coming on. Check the bulb/ lamp life. Possible the lamp has exceeded its useful life and may need to be replaced.
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 . .............................................................
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
Things You'll Need:
new projector lamp
micro fiber duster
avoid touching the bare projector lamp
I hope this will help .
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.