hey guys i have a problem with my screen , when i attach my ac cable to the wall the blue button turn on without any signal comes to the screen even at startup there are no benq logo so guys i need help??????????
benq fp767 problem 17 inch
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Re: benq fp767 problem 17 inch
If you want to jump in and throw money at the problem, order REPAIR KIT E172FPB E173FPB FP72G FP731 - 2SC5707 C5707 from an eBay seller and install it.
If you want to take an intelligent approach, open the monitor up, take pictures (top and bottom) of the power supply / inverter and ATTACH them to your next post. See the link in my signature for instructions.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic. -
Re: benq fp767 problem 17 inch
Do you own a multi-meter, and do you know how to use it?
Can you solder?
If the answer to all of those was yes, then we can probably help you.
You can't always see bad capacitors, blown transistors and blown fuses just by looking at them. The chances of the problem being the logic board are about 1% 99% more likely is the power supply/inverter circuitry.
So if you can answer the questions, post good clear photos of the top and bottom of the boards, and mabe even hint at what part of the world you're in, we can move forward.36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....Comment
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Re: benq fp767 problem 17 inch
Excellent. Next step, post some photos, and we'll give you some tips on what to test.
I'm betting at least 1 bad transistor and pico fuse.36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....Comment
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: benq fp767 problem 17 inch
where are you guyssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssComment
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Re: benq fp767 problem 17 inch
where are you guyssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
Q739, Q740, Q743, Q751, Q759, Q760, PF751. Test them and replace any that are bad.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: benq fp767 problem 17 inch
<facepalm>
I think you need to re-read a few posts. We said "Good CLEAR pictures" and I asked do you have a multi-meter and know how to use it....
Luckily PlainBills newly modified eyes could magically read the component designations.
And seriously... 4:43 AM (MDT) and you're impatient for responses? Oy!
We'll help you, but really, try to help us help you.....Last edited by smason; 09-02-2010, 08:51 AM.36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....Comment
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Re: benq fp767 problem 17 inch
Red on base black on collector
Red on base black on emitter
Red on collector black on emitter
then reverse red and black and repeat.
You should see a reading between approximately .400 to .800 in one direction, and open in the other.
I suspect you'll see at least one that's shorted. Also test the fuse. If one of the transistors shorted it will likely have taken out the fuse.36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....Comment
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Re: benq fp767 problem 17 inch
Put your meter on the diode test setting, then test each transistor.
Red on base black on collector
Red on base black on emitter
Red on collector black on emitter
then reverse red and black and repeat.
You should see a reading between approximately .400 to .800 in one direction, and open in the other.
I suspect you'll see at least one that's shorted. Also test the fuse. If one of the transistors shorted it will likely have taken out the fuse.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: benq fp767 problem 17 inch
Some people (like some of my co-workers :slap: ) when sent an email with 2 questions, always seem to only answer 1.
If you send each question in a seperate email, they magically get answered.
Kinda like when you post "please post pictures, AND tell us where you are"
you'll never find out where they are </hint>Last edited by smason; 09-03-2010, 10:23 AM.36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....Comment
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Re: benq fp767 problem 17 inch
Yes. The transistors and fuse Plain Bill listed are all involved in the inverter circuit, which is responsible for powering the lamps.36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....Comment
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