benq fp767 problem 17 inch

[gasan]

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 light

[sabre504]

Re: benq fp767 problem 17 inch

As Plainbill said change

4x C5707 (2SC5707) outlined in red

2x FU9024N outlined in blue

turn the board over and resolder 4 x transformers outlined black

then put in new picofuse

[gasan]

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 fusers

[sabre504]

Re: benq fp767 problem 17 inch

You must also resolder the transformers
Then that should cure the fuse prob

[gasan]

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 money

[sabre504]

Re: benq fp767 problem 17 inch

Whereabouts are you in the world ?
These parts are not to expensive depending on where you are may be able to point you in the right direction

[gasan]

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))

[PlainBill]

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))

You cannot possibly appreciate how happy we are to hear you say that.

PlainBill

[sabre504]

Re: benq fp767 problem 17 inch

[gasan]

Re: benq fp767 problem 17 inch

its like a magic worksssssss hooohahahahah

[smason]

Re: benq fp767 problem 17 inch

You cannot possibly appreciate how happy we are to hear you say that.

PlainBill

Ouch, I just blew Wonton soup out of my nose....

[jetadm123]

Re: benq fp767 problem 17 inch

Ouch, I just blew Wonton soup out of my nose....

A wonton didn't come out with the soup did it? Now, that would really hurt!!!

[badbowtie]

Re: benq fp767 problem 17 inch

I have basically the same symptoms as GASAN with my benq FP767 17" monitor IE power led is on but no image on screen. I"ve taken out the circuit boards to check for anything obvious to no avail, the main fuse is good and its the only one that looks like a fuse. I only have grade 9 electronics 32 years ago so please be patient with me. 1st, I think I remember a transistor has to be removed from the board to be tested. 2nd, on your pic on pg 42, where are the picofuses? I don't even know what a picofuse looks like! I thought they would be "fu9024n" but they're marked q743 and q751 and have 3 leads so I'm assuming they're transistors. A new lcd monitor is about $100. in Toronto, Ontario, Canada So I'm wondering if I should even proceed as I don't know what the parts will cost me. I do know E=IR, LOL.

[alexanna]

Re: benq fp767 problem 17 inch

Are you able to provide photos of your power supply?
sorry I missed the pitcures I think i can see it but it out of focus

[smason]

Re: benq fp767 problem 17 inch

A new lcd monitor is about $100. in Toronto, Ontario, Canada So I'm wondering if I should even proceed as I don't know what the parts will cost me. I do know E=IR, LOL.

Hi Badbow, welcome. The last couple of BENQs I repaired cost about $6.00 Canadian. Sure monitors are cheap, but it's fun to fix 'em and good to keep 'em out of the landfill.

You should measure the transistors, and the pico fuse, and check the soldering on the transformers.

Post a good photo of the board and we'll guide you from there.

[retiredcaps]

Re: benq fp767 problem 17 inch

I have basically the same symptoms as GASAN with my benq FP767 17" monitor IE power led is on but no image on screen.

Just so you know cross posting your threads is not going to make people happy here. It confuses people and makes people do double effort. Leave your post in one place (here) and follow the instructions given and people will help.

Problems with Benq style boards are well known here and we can suggest the proper solutions to fix them.

Please don't go down the road as the OP.

[badbowtie]

Re: benq fp767 problem 17 inch

As you can see from 0015 and 0076, I'm a fitter/welder so please bear with me. Photos attached. the pic you were looking at was the guy online with the similar problem with his benQ monitor. thanks, badbowtie.

[Rtech]

Re: benq fp767 problem 17 inch

If you look on the bottom of the Power supply board,in the area of the 3 aluminium heatsinks, you will see a component identification 'PF' that is the Pico Fuse, probably green in colour to locate it on the top of the board.

[alexanna]

Re: benq fp767 problem 17 inch

If you can't find the fuse please post some pictures that are not blury.WE need to be able to read componet numbers on the board.

[badbowtie]

Re: benq fp767 problem 17 inch

sorry retiredcaps every site is different. by "crossposting" do you mean posting info in more than one place?