Question about BenQ FP737S-D 17" LCD Monitor

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White screen Hi u left a solution conserning my benq lcd with a white screen conserning capacitors as i hav checked all caps on power board and can see no swelling or leacking are there any particular caps i should be looking at thanks

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  • halek Sep 24, 2008

    H iv changed both caps and screens still showing white one improvment tho is when attached to my pc and turned on the screen stays on as if working but as i said still just white

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I believe they are two 1000uf 16 volt... there are two side by side and they are tall.

Robert

Posted on Sep 15, 2008

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1 Answer

No power light and black screen; have tested with two 240v power sources. Is there an internal fuse or simple repair?...


Yes there is main AC fuse on the power supply/inverter board.
Here is the service manual: http://elektrotanya.com/?q=showresult&megnev=BenQ%20&megnev2=FP731&kategoria=monitor&kat2=all

Please leave rating if it helps.

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: 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.

Jan 27, 2011 | BenQ FP731 17" LCD Monitor

1 Answer

LG L1920B When I turn on the monitor, than are only a White Screen to see.


White/Gray glowing screen as shown in my guide?
You need to check the power supply in the power supply section and in the logic board section.
It may have problem in the T-CON board on the LCD panel assembly. Also check the ribbon cable between the LCD panel and the logic board.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 05, 2011 | LG Computers & Internet

1 Answer

I have fp567s monitor\r\nit often goes silver while starting and it needs monitor off button to be pressed (sometimes twice/thrice) for windows / boot screen to come alive i have re-installed the driver...


The silver hwite/grey screen means that the LCD panel is not getting the signals, 5vdc from the logic board. Try reseating the connections between the logic board and the LCD panel first.
Also check the power supply caps.

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

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

Dec 13, 2010 | BenQ FP567s 15" LCD Monitor

1 Answer

Monitor does not work, powers on screen goes white or almost all white, can not get menu or anything to display, green power button stays steady.


White glowing screen means it is not getting the signal from the logic board or the logic board is not seding the 5 or12vdc to the T-CON board on the LCD panel. So check the voltages and caps.
http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/

If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Sep 15, 2010 | Dell E198FP LCD Monitor

1 Answer

Trouble with my BenQ monitor


You have LCD panel failing issue or it is not getting the proper voltage to the panel. Look at the power supply and logic board section first for failed caps (leaking/bulging tops). check ribbon cable between the logic bd and the LCD panel. If it is vertical stripes, the the T-CON board, part of LCD panel, then you will need new panel.
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Service manuals: http://elektrotanya.com/?q=showresult&megnev=benq%20&megnev2=fp71g&kategoria=&kat2=all

May 14, 2010 | BenQ FP71G 17" LCD Monitor

1 Answer

Wont power onPressing power switch, blue light comes on, the BenQ logo briefly flashes then screen stays black


Power leak causing overload on the O/L sensor.

Probably a faulty capacitor on the power board

Sep 07, 2009 | BenQ FP71E 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 FP72E 17" LCD Monitor Problem


The video card driving the monitor or the video section of the monitor circuitry is getting bad, probably a capacitor on the board.
srich

May 23, 2008 | BenQ FP71E 17" LCD Monitor

6 Answers

Benq lcd Displays only white


Most often the all white screen is the result of a missing voltage to the LCD panel. We usually find an open fuse on the panel circuit board. Unfortunately replacing the fuse does not usually fix the problem.
Mike

Mar 02, 2008 | Computers & Internet

1 Answer

Benq fp737 17


How old are the monitors?
Normally backlights last at least 30,000hrs of working.
Normally problems on Inverter board transistors near yellow inverter transformers.
Samir

Nov 28, 2007 | BenQ FP731 17" LCD Monitor

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