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Recently my benq mp620p projector stop working. When I connect the power cord the power button lights up green and the power led orange as usually. When I push the power button, it starts to blink in green, the filter wheel starts to spin and the lamp starts to warm up with some light comming out. Few seconds after, the fans start, the power led becomes solid green and the lamps goes of. I can't do anything else since that other than unplug the power cord. No response to any button. Any help?

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I'm assuming that you have checked the bulb and it appears ok. Either the inverter/ ballast board has a fault or , much more likely, the control board is no longer capable of finishing the loading of the firmware. This is usually caused by the failure of the microprocessor, which means that the entire mainboard would have to be replaced.
This is doable but not cost-effective: it will be cheaper just to buy a new projector. To identify the problem the voltages on the power and ballast board will have to be measured - beware, they are extremely high, a special multimetre will be necessary.

Posted on Mar 24, 2011

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(11/24)
<Service mode operation procedures>
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<Service mode operation procedures>
1) With the printer powered off but connected to a power source, press the Power button while pressing and holding
the Stop/ Reset button.
2) When the Power LED is lit, press the Stop/Reset button two times while pressing and holding the Power button.
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