Re: KDS Business K Series K22mdwb not turn on
so when you replaced the power supply you got the color problem????????
gasan
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Last Activity: 09-16-2010, 12:52 PM
Joined: 09-01-2010
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Re: benq fp767 problem 17 inch
its like a magic worksssssss hooohahahahahLeave a comment:
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Re: benq fp767 problem 17 inch
ok guys i put new pico fuser and now it works without any problems
thank you all about the help bybeybeye
))
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Re: benq fp767 problem 17 inch
I'm afraid I'll pay for the ingredients and then will not work because it will cost alot of moneyLeave a comment:
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Re: benq fp767 problem 17 inch
ok i understand you but if i replace these transistors , the picofuser will not blow up?????because i changed 3 brand new fusersLeave a comment:
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Re: benq fp767 problem 17 inch
I changed for three new fusers working but the problem is when I pull a cable jack and returns it to , the fuser screwed and no light no lightLeave a comment:
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Re: benq fp767 problem 17 inch
its like somthing is shorting the fuse !!!!!!!!! so wierdLeave a comment:
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Re: benq fp767 problem 17 inch
ok guys i bought brand new picofuse 3.15a and its working but suddenly when i unplug the cable from the wall (AC CABLE) and put it back agian there is no light (the same problem)Leave a comment:
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Re: benq fp767 problem 17 inch
ok thank you i really appreciate you guys about your efforts.
i have a little quistion for you guys , what is the pecofuse i really didnt get it and What its role ????????????????Leave a comment:
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Re: benq fp767 problem 17 inch
this test wihout the pikufuse (i desolder it)
base - collector =0.49 (at 20k multimeter)
base - emmiter =6.63 (at 20k multimeter)
collector -emmeter =5.85 (at 20k multimeter)
these results apply to q740 + q739 +q760 +q759Leave a comment:
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Re: benq fp767 problem 17 inch
so i did all what you mention (resoldring ....etc).
what should i do now just wait to get brand new fuse or test somthin else ????Last edited by gasan; 09-03-2010, 12:04 PM.Leave a comment:
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Re: benq fp767 problem 17 inch
thank you so much retiredcaps so how could i know it just a problem with pikofuseLeave a comment:
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Re: benq fp767 problem 17 inch
at 200 ohm on the multimeter it read "1"Leave a comment:
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Re: benq fp767 problem 17 inch
its 532 (i put the multimeter on 2000k ohm) is that good or bad ????Leave a comment:
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Re: benq fp767 problem 17 inch
the main fuse is ok because i can see the benq logo on the screen and my operating system windows xp but all dark without a lightLeave a comment:
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Re: benq fp767 problem 17 inch
collector -emiter= 198
collector- base= 493
base- emitor = 723Leave a comment:
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Re: benq fp767 problem 17 inch
ok q759+ q760 + q739+q740 gave me the same reading !!!! mybe its high voltage capacitors (blue). thank you guys
any suggetions?????Leave a comment:
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Re: benq fp767 problem 17 inch
ok guys i looked at my screen and see that there is a signal came to the screen (benq) logo and the windows xp) but without light mybe the problem with the power supply or the lamps ??Leave a comment:
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Re: benq fp767 problem 17 inch
how to test them on the multimeter and where to put the multimeter (where it should be on ohm or volt .............) ?????????????Leave a comment:
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Re: benq fp767 problem 17 inch
where are you guyssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssLeave a comment:
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