Question about BenQ FP737S-D 17" LCD Monitor

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Benq fp737s monitor dead

Hi there, ive read your info on fixing but having probs finding the transistors you mention. i have board in front of me and can only see c707 c708 c709 . how do i test these to see if they dead. oh the ceramic fuse is ok too...andy

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  • 220 Answers

Check transistors Q739,740,759,760.What you are refering to are capacitors in powersupply section.These transistors are near the 4 yellow invertors near the backlight connection sockets.
Samir

Posted on May 30, 2008

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My benq fp737s monitor keeps blinking every 3 seconds. The green light keeps flashing and here is a clicking sound every time it blinks. Do I throw the monitor out or is there an easy solution?


It may have shorted out transistors, bad caps, etc. You need to open it up and do in-depth troubleshooting, but please read my guides first.
http://s807.photobucket.com/albums/yy352/budm/BenQ/
BenQ also makes the Dell monitors.
http://s807.photobucket.com/albums/yy352/budm/DELL/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Aug 19, 2011 | BenQ FP737S-D 17" LCD Monitor

2 Answers

White screen


dreaded capacitor issue. benq's were famous for it. if you are handy with disassembly and careful you can take it apart and do it yourself. look for any capacitors with rounded tops. i fixed one ... the part is only two dollars or so but it's a good feeling to know you fixed it instead of tossing it.

Robert

Aug 28, 2008 | BenQ FP737S-D 17" LCD Monitor

1 Answer

Benq monitor


Most of the time problem is Invertor transistors being defective and Inverter transformer dry solder.
But you must be technically able with soldering skills and be able to test transistors using a multimeter.
Samir

Aug 06, 2008 | BenQ FP737S-D 17" LCD Monitor

1 Answer

LCD panel no display


check transistors Q739,740,759,760.These transistors are near the Yellow inverter transformers.Resolder these transformers and check/ replace above transistors.
Please rate this solution.
Samir

Jun 03, 2008 | BenQ FP737S-D 17" LCD Monitor

3 Answers

Benq fp737s monitor failure


try resoldering the joints on c826 &c824 near the 4 yellow transformers in the power supply.
hope this helps

kevin numbnuts07

May 28, 2008 | BenQ FP737S-D 17" LCD Monitor

2 Answers

I have one thats dead and


Robert,
What happens exactly?
Does power LED flash on/off or the displat comes on and goes off?Do you get Benq screen when you power on with front power switch?
T751,752,753,753 are the transformers to be resoldered ,and resolder Transistors Q759,60,39,40,43,51.
Please check them with a multimeter if you are adept .
Please rate the solution and provide feedback.
Samir

Apr 27, 2008 | BenQ FP731 17" LCD Monitor

1 Answer

Benq 17"Lcd monitor fault


Resolder the power transistors on inverter board and also check them.If display is not there at all some of this 4 transistors C5707 should be defective.Check associated fuse and Fet which drives the transistor.

Also check with Benq ,Normally offers three year warranty.

Samir

Mar 23, 2008 | BenQ FP737S-D 17" LCD Monitor

2 Answers

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Hi Mate,
Ive worked on a few monitors since then. From what I remember, one side of the foil needs to be removed. Under this foil are 4 plugs for the back lights. Mark them before you remove them so you know which way to put them back. Also unplug cable from board that comes from the front buttons. Remove 4 screws on side of screen. This will remove the steel housing that the circuit boards are mounted on. ***** Make sure you wear an earth strap or static electricity will fry the boards. If you dont have an earth strap, try to work on the monitor in a static free environment. eg on a steel table that has been earthed, and dont wear nylon clothing. There should be 2 circuit boards that will need all the screws removed to pull both out at the same time. The "PF" will be on the reverse side of the board or the "component side". There is a ceramic fuse (white), but this will not be the problem if you can see the screen with a torch. To find the fuse I spoke about, please see my previous listing.
All the best,
MB.

Jan 24, 2008 | BenQ FP737S-D 17" LCD Monitor

1 Answer

Benq lcd


WHich model is this?
Samir

Dec 24, 2007 | BenQ FP737S-D 17" LCD Monitor

6 Answers

BenQ FP731 17" LCD Monitor Problem


Connect it to another device, if you get the same result the backlight is bad! These can be replaced, but can be costly!

Nov 14, 2007 | BenQ FP731 17" LCD Monitor

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