Having problems with your BenQ FP71G 17" LCD Monitor ?
Benq inverter board schemtic
\015 I have 2 HP1940 LCD monitors using a benq inverter board \015\012this board is very very similar to the benq board used in the Q7T4-FP71G monitor .I have downloaded the service manual but the schemtic is not complete ....I seem to have the same problem as everyone else with back lighting only coming on for a second ..can any one help with a full schemtic of a benq board \015\012Peter Australia\015
Post me a picture of the board and I might be able to Help.Normally transistors 2Sc5707 are defective.
Hello benq q7t4 problem. sometimes does not open.2sc5707 transistors provide all of.The swollen 10v 1000 uf has changed.insurance firm
Repair Help & Product Troubleshooting for BenQ FP71G 17" LCD Monitor
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Benq inverter board schemtic
Post me a picture of the board and I might be able to Help.Normally transistors 2Sc5707 are defective.\015\012Samir.\015\[email protected] ... BenQ FP71G 17" LCD Monitor
Benq fp737 17
How old are the monitors?\015\012Normally backlights last at least 30,000hrs of working.\015\012Normally problems on Inverter board transistors near yellow inverter transformers.\015\012Samir ... BenQ FP731 17" LCD Monitor
Testing C5707 Transistors on Benq Inverter Board
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Hewlett-Packard vs17 half fixed, what to do next?
Hello,I have also seen this type of problem. Have you checked the large caps on the inverter board, no just the power supply board? Many LCD monitors have 2 caps on the inverter and I have had to replace them from time to time. The next t ... HP vs17c 17" LCD Monitor
Screen has power but is black
Looks like many faukty parts on the inverter board.. replacing will not be of much help as it will soon start get troublesome once again. I would suggest that replacing the LCD inverter board is a smarter solution. Hope this helps!Good Luck! ... BenQ FP71G 17" LCD Monitor
BenQ FP71G+ screen blank
If front power led is on and No display ,Problem is with Inverter circuit.The post u descibe should help you determine with certainity that Inverter is the issue.\015\012Samir ... BenQ FP71G 17" LCD Monitor
BenQ FP767 17" Power but no display?
Different faults here.\015\012First fault is no power, it is bad capacitors on the power board.\015\012\015\012Second & third faults are the inverters. (power but no image visible, but feint if you shine a light into the screen) ... BenQ FP767 17" LCD Monitor
Attempting to replace F153 Inverter board
You may have to look for it under a different brand name.\015\012\015\012One way is to get the FCC number off the tag and look it up here:\015\012\015\012https://gullfoss2.fcc.gov/prod/oet/cf/eas/reports/GenericSearch.cfm\015\012\015\012That may show ... TDV Vison F153 Monitor
No backlight in Benq fp767-12 I have replaced all c5707 on inverter board and fu9024n and few capacitors but it still does not work
If you can expose it, examine the ends of the fluorescent tube itself; if there are prominent black rings at the end, the tube is toast.\015\012These cost much less to replace and live only about 4-5,000 hours, much shorter than the inverter board ... BenQ FP767-12 17" LCD Monitor
Screen remains black - BenQ FP731 17" LCD Monitor
Sounds like you have a faulty backlight inverter board? Please turn on your computer and play a movie or something and flash a torch on the monitor screen. See if you notice a faint image moving on it. If you do, then you are going to have to replace ... BenQ FP731 17" LCD Monitor
Power but no picture
Try to re-solder the inverter part of the board. You may recognize that part where the 4 connectors from the backlight tubes can be found.... usually the small transformators (sorry, my technical English is not good) have bad soldering eyes after lon ... BenQ FP71E 17" LCD Monitor
Benq FP937s Monitor - no display
Usually this type of problem is due to a faulty electrolytic capacitor on the monitor's power supply board or the inverter board that powers the backlight lamps. If you have a soldering iron and some technical skill it's possible to repair this your ... Gateway FPD2275W LCD Monitor
Can repairs be made to BenQ FP731 17 inch Flat Screen.
The power and Inverter board has a problem.Check Inverter transistors and the related fuse. ... BenQ FP731 17" LCD Monitor
Re: FP71G+ I agree with replacing the inverter board, but where can I get this board from? Many Thanks, Jonathan email: [email protected]
If it's a 71g+ it should be under warranty,Benq offers 3 year warranty.Contact Benq.\015\012Samir ... BenQ FP71G 17" LCD Monitor
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.\015\012\015\012Also check ... BenQ FP737S-D 17" LCD Monitor
BenQ FP72G 17" LCD Monitor NO DISPLAY but when i shine a torch on the screen, it shows the display. Does anyone know exactly which compoent i need to replace on the Inverter board ? All transistors seems to be short circuited ?
The parts list..Here we go again =)\015\012\015\0124x 2SC5705 (can also be 706 as well)\015\012Bridge capacitors (near the transistors) - Replace\015\012Transformers (can be eithe ... BenQ FP72G+ 17" LCD Monitor
What happens when lcd monitor shows for about 2 seconds then blacks out?
A few possibilities, starting with the most likely: \015\012- The backlight tube (CCFL) \015\012- The inverter that produces the high voltage for the tube\015\012- The main power supply which provides the voltage for the inverter \015\012\015\0 ... BenQ FP71G 17" LCD Monitor
Back light goes out after start up - Dell E172FP 17" LCD Flat Panel Monitor
You have BenQ syndrome.\015\012Sounds strange I know, but the power supply in your monitor is a BenQ manufactured part.\015\012The problem is in the inverter section of the power/inverter board.\015\012There are 4 small transistors ... Dell E172FP 17" LCD Flat Panel Monitor
Black screen When I turn on my computer the screen just comes up black...any suggestions BenQ FP71G 17 in. Flat Panel LCD Monitor
Does your computer appear to be booting?Do you head any startup noises, or the startup sounds you hear when Windows loads?In no, have your computer checked.If yes, make sure your cables are all snug. Other than tha ... Gateway FPD2275W LCD Monitor
2-3-4- years old benq FP19G = returned to office after lunch - burned out electronic smell in air - whole section of office electrically dead' - did reset = computer fired up ok - but screen blank ?=led-not-illuminating... - no visable fuse to fix ' have tried alt-power-cable=nope = bright ideas invited - John :)
Benqs have had some quality control issues but from your description the inverter board went on you. It needs to be replaced or repaired. Expect to spend about $100 for the repair so you may want to consider just replacing the monitor.\015\012 ... BenQ 19" lcd black 1440 x 900 19 inch LCD Monitor
BenQ FP51g LCD monitor
Dear Friend:\015\012 There is a Switch transistor to power on -off the hi voltaje for lights. Check 15V from power source go to this transistor colector, Using soldering Iron, make a juntion between colector and emiter, to short 15V to Hi volt ... Proview PL713S 17" Flat Panel LCD Monitor
BenQ, power is on, screen is almost black, just very dark
You can not fix this problem from the panel buttons, the problem is\015\012something to do with the circuit board. Its the inverter cicuit that\015\012has one or couple of components faulty. I susgest you bring it o\015\012the repair shop. cheers. ... BenQ FP731 17" LCD Monitor
LCD Benq FP937s+
This is an Inverter related issue on the Inverter board. ... Relisys RLT1720 17" LCD Monitor
BenQ FP731 17" Inverter transistors
T751,752,753,753 are the transformers to be resoldered ,and resolder Transistors Q759,60,39,40,43,51.\015\012Please check them with a multimeter if you are adept .\015\012Please rate the solution and provide feedback.\015\012Samir ... BenQ FP731 17" LCD Monitor
BenQ FP 731 17" black LCD
It sound like power on the monitor if it is this what you need to do.\015\012\015\012Change the 2SC5707 transistors and electrolytic caps in the invertersection. Also check the 3A picofuse, and resolder all transformerpins. Ar ... BenQ FP731 - 17" LCD Monitor