Question about BenQ FP547 15" LCD Monitor
Posted by Anonymous on
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Posted on Jan 02, 2017
Its a problem with the inverter. check the 4 transistors, C5707 near the connectors for the backlight. If none are defective, look for the PF751 FUSE. It sure to be busted.You can replace that with another 3A fuse. Remember, you should only replace the fuse if you are certain there are no busted transistors in the inverter board. Otherwise, you now have a refurbished Benq Monitor
Posted on Jan 07, 2008
Had the compete dark screen problem. Green/amber power light was coming on and off as expected but no image would appear on the screen.
Found PF751 to be open.
Thnaks for the help people.
Posted on Oct 08, 2008
I had the same problem and found that Q808, Q809 and Q805 had failed and which if left long enough can also cause PF801 to fail. I also replaced all of the electrolytic capacitors during the rebuild as it was only a few dollars to do so.
Although in my case Q815, Q816 and Q812 were fine I suspect that they may also fail in time.
Here are the parts which should be available at most electronic stores or online.
Q808 & Q809 - 2SC5707
Q805 - IRFU9024N
PF801 - 3 AMP PICO FUSE
Posted on Jan 22, 2009
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