Sorry I thought you have taken out the screws. My problem was to detach the silver cover
Vivio
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Last Activity: 01-15-2015, 04:51 AM
Joined: 02-15-2011
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Re: Benq Q7T4 FP71G
Sorry I thought you have taken out the screws. My problem was to detach the silver cover
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Re: Benq Q7T4 FP71G
well, not my best work...
At the button level I have squizzed a small screwdriver and little by little the lid was freed.
There are few marks, maybe look for another advise also
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Re: Benq Q7T4 FP71G
Update:
I have replaced the 2 MOSFET and the 4 2SC5707, along with the capacitors between them: 220nF/160V.
The picofuse has been replaced with an part that is almost similar FSK03.15
Also, I have soldered the whole inverter area. For two weeks the monitor works well, hope it will last forever
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Re: Benq Q7T4 FP71G
One of those gray caps had some problems. At first repair I had put some old caps from a cannibalized TV
Now I'll buy new ones to be sure.
At the same price I can buy the c5707s, fu9024 here in Romania from a store directly without waiting for the package and paying the shipment more then the parts itself. The problem is to find a proper replacement for the picofuse. That makes me mad
Thanks for your input!Leave a comment:
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Re: Benq Q7T4 FP71G
[B]retiredcaps[/B] thank you!
[B]EGuevarae[/B]
to be sure the 2 MOSFET and the 4 2SC5707 will be replaced, along with the capacitors between them: 220nF/160V.
The picture is from the first repair right after the monitor was opened and the quality is not that great. Sorry for that.
In the pic is shown with RED: all the components that have been already replaced the first time and I will not be replace them now. Exception is the 220nF/160V.
With BLUE: the components that I intend to replace....Leave a comment:
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Re: Benq Q7T4 FP71G
Sorry for reviving the thread, but I have a problem with this monitor also.
In the inverter zone I had the electrolytic capacitors with the electrolyte liquid leaked. So I've replaced them all.
Beside that I have replaced the two MOSFET and the all 4 2SC5707.
Since I did not had 220nF/160V i have used some old ones. The picofuse was replaced with a normal one rated 3,15V/250V.
After several days the monitor is having the same defect: nu illumination.
From what I read here I'll do the following:...Leave a comment:
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