Question about BenQ PB6110 Multimedia Projector
Power supply of Benq PB 6110 was damage, because of high power in the grid. I am very much glad if you can send me the circuit diagram of unit PB 6110.
THANK YOU SO MUCH!
I did some search for service manual, which will most probably have al circuit diagrams and maintenance information for the BENQ PB 6110 Air Conditioner and found it on this site for $24.90. i used their search and went all the way to check that its available for imediate download, but didnt download it :) here's the link for the site:
Posted on Jan 04, 2009
The spare circuit diagram is not available, and since Benq is out of market, the service manual will aso be difficult to find.
Check all capacitors, looking for a bulged one, that is the most common cause for faults on PSU unit.
Posted on Jan 04, 2009
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Posted on Jan 02, 2017
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Mar 27, 2016 | BenQ MP770 DLP Projector
If the standby light blink then it indicates a fault relevant to the processor.If the set is fully dead then the SMPS power supply can be faulty.
Since there is a possible short or leak in the circuit the output driver section can take in huge current to trip the SMPS or from advice from the micro processor. Remove the power plugs and make sure that high voltage sections are discharged of the potential stored in capacitors. Look for visible signs of leak or of busted capacitors. Look for bulged capacitors or damaged components- burnt or busted. Use a multimeter to check the continuity or shorting in components, if so detach from circuit and test . If the voltage builds up and the set power ON and then shuts up then the suspected section must be checked in detail.
The processor must have the +5 voltage to the function properly , the +B and secondary voltages also must be checked to infer the fault. Trace with caution and in running through the signal path , circuit trail.
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