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36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far.... -
Re: benq fp767 problem 17 inch
I find this useful and will probably switch to this asap. Start using numbered questions.
1) where do you live?
2) do you know how to use a multimeter?
3) do you have basic electronics knowledge?
4) do you have a solder iron?
This forces the poster to enumerate each question and answer.--- begin sig file ---
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Re: benq fp767 problem 17 inch
collector -emiter= 198
collector- base= 493
base- emitor = 723Comment
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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 lightComment
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Re: benq fp767 problem 17 inch
1) STOP and READ CAREFULLY. This is getting silly.
2) STOP AND READ for one second.
3) You have been asked no less than 6 times (in posts 5, 7, 12, 16, 19, and 21) to check the picofuse PF751.
4) CHECK picofuse PF751.
5) Report the ohms measurment.--- begin sig file ---
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Re: benq fp767 problem 17 inch
its 532 (i put the multimeter on 2000k ohm) is that good or bad ????Comment
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Re: benq fp767 problem 17 inch
That's bad. It should read 000 to 008 give or take depending on the meter/leads etc.
I recently repaired 2 of these, one had shorted transistors, the other just had a bad fuse.
So it IS possible that the fuse is the only problem.
I would do the following:
1 re-solder all of the transformer pins
2 double check the transistors
3 replace fuse
4 test36 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
at 200 ohm on the multimeter it read "1"Comment
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Re: benq fp767 problem 17 inch
1) You have a blown picofuse. This picofuse protects the inverter section. If it is blown, there will be no backlight. This will need to be replaced.
2) If you don't want to replace it again, pay attention and follow ALL the steps as listed by Krankshaft at
https://www.badcaps.net/forum/showpo...2&postcount=21
3) Even though it is not the same monitor, they are made the same vendor and have the same problem.
4) You *MUST* do all the steps outlined by Krankshaft. It is a mandatory.
5) Also, follow the suggestions by my fellow Canadian, smason, in post #28.--- begin sig file ---
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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 pikofuseComment
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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.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 +q759Comment
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Re: benq fp767 problem 17 inch
If you have done *everything* that smason and Krankshaft have outlined, then go ahead and get a new fuse.
Before installing it, test it out of circuit to ensure it reads 0.3 ohms on the 200 ohm (two hundred) scale.
After you install it, review all the steps in #28 and #30 one last time. Then and only then apply power.--- begin sig file ---
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Please do not post inline and offsite as they slow down the loading of pages.
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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 ????????????????Comment
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Re: benq fp767 problem 17 inch
1) Spell it correctly. It is picofuse. Not pecofuse or pikofuse. Spelling it correctly will help when you use the search function (hint).
2) Searching for picofuse yields ...
https://www.badcaps.net/forum/showpo...50&postcount=2--- begin sig file ---
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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)Comment
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Re: benq fp767 problem 17 inch
its like somthing is shorting the fuse !!!!!!!!! so wierdComment
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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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This specification for the HP ZBook Firefly 16 inch G10 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 16 inch G10 boardview and 16 inch G10 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 07:20 AM
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This specification for the HP ZBook Firefly 16 inch G10 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 16 inch G10 boardview and 16 inch G10 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 07:19 AM
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This specification for the HP ZBook Firefly 16 inch G10 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 16 inch G10 boardview and 16 inch G10 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 07:19 AM
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This specification for the HP ZBook Firefly 16 inch G10 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 16 inch G10 boardview and 16 inch G10 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 07:19 AM
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This specification for the HP ZBook Firefly 16 inch G10 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 16 inch G10 boardview and 16 inch G10 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 07:12 AM
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