Question about BenQ FP72V 17 inch LCD Monitor

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The screen went blank. I sent it to the authorized Service Center in Nehru Place, New Delhi. They returned it saying that a part has to come from Pune, India. It is 3 months now and they keep saying that the part has not come. Is there an alternatrive service cienter? he monitor is important to me and is beong warranty period. Can you help? Are you in India?. The monotor has to be repaired only in New Delhi. It went black within a year but now there is o warranty. Please don't tell me that I should buy a new one. Thanks..

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: BENQ FP731s Monitor Problem white blank screen

BenQ brand new high-voltage wire circle
BenQ LCD Controls circle / BenQ LCD accessories more high success rate, and easy maintenance, fault lower again!

Name : BenQ LCD
Name : LCD Controls circle
Model : specifications : 1J.26048.011

BenQ LCD accessories four small mouth lights of the high-pressure reverse pressure plate used for high temperature must Taiwan curbs are enameled wire system. With a small noise, power, brightness control in high-efficiency low-loss. Rapid cooling loop can be designed according to customer-specific products.
2 features the use of high-precision inverter line Rao, insulation and can be a long time. 3 to 1. Electricity use light line measurement of high-frequency currents. 2. Backlight voltage output of a sinusoidal waveform. 3. The backlight brightness and the same as the original high-pressure plate. 4. 1-2 4.1 filament output AC exchange through the export of Maintenance and Spec - CN5 link to the. 5 and storage temperature and Temperature temperature ranges : -5 -- 50 ℃ work humidity range : 10% -- 95% RH the backlight should be within the scope of the above, the following conditions can store 40,000 hours. Operating temperature : -10 -- 80 ℃ work Humidity : 20% -- 95 % RH

BenQ LCD maintenance information


1 : BenQ LCD can switch planes normal (no signal light yellow, green signal), Looking carefully at the screen whether there are changes, they generally do not carefully read the screen can not see a change, oh, look at carefully Matata. Change or switch to a normal plane, the main board intact, such a high-pressure situation on board is no work, no lights lit backlight.
2 : disassemble machines, starting with high-pressure plate (box 220V piece of the plate), a screwdriver button open, not lazy. Power board and put the Main Board are removed, this is a good Off Power Plate,
3 : Measurement C5707, FQU11P06 (Some of the machines are used FU9024), whether the damage (breakdown) If the damage (breakdown), he seemed to see the appearance .22/160V capacitance whether deformation, If deformation replace, if not capacitance deformation on regardless.
4 : damage to the replacement of the device, if the fear of electricity burned again, you can Controls circle together too, In order to save costs if you should not start for high-voltage wire circle -- testing, If the damage C5707 meeting on the need to replace the high-voltage wire coils (most of the damage to the C5707 is Controls 72.9% Circle aroused),
5 : measurement of high voltage power supply board whether short circuit, without short-circuiting I would be grateful if insurance (PF801) new ones (General C5707 damage, insurance will certainly damage), If you do not have insurance you connect with fine copper wire, this 3-A insurance. Please stop the PF801 power-measurement, measurement inaccurate.

Understand how maintenance of electronic maintenance steps friends

1 : BenQ LCD can switch planes normal (no signal light yellow, green signal), Looking carefully at the screen whether there are changes, they generally do not carefully read the screen can not see a change, oh, look at carefully Matata. Change or switch to a normal plane, the main board intact, such a high-pressure situation on board is no work, no lights lit backlight.
2 : disassemble machines, starting with high-pressure plate (box 220V piece of the plate), a screwdriver button open, not lazy. Power board and put the Main Board are removed, this is a good power to remove board.
3 : replacement C5707 4 (Q809, Q808, loops, Q815) four high-voltage wire coils (T001, T002, T003, T004). 2 FQU11P06 or FU9024 (Qingdao, Q805). PF801 Insurance (insurance for the three A).

Posted on Dec 27, 2007

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viziks
  • 220 Answers

SOURCE: 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.

Posted on Feb 16, 2008

Mark_Webber
  • 472 Answers

SOURCE: monitor

Look up the BenQ website. http://www.benq.com/support/
These monitors have a 3 year warranty in most cases.

Failing that cantact BenQ directly with the phone numbers on that same site.

Posted on Apr 09, 2008

bammbammfran
  • 159 Answers

SOURCE: Screen blacking in and out

Monitor going black after a few seconds can be causd by a faulty power supply or inverter. Some monitors have both as one unit.
Sometimes it is basic failed capacitors, After that then I would look at transistors.
The average monitor from 17 to 20 and sometimes the 22s have usually 4 bulbs in them. One bad bulb will also cause the inverter to not fire up.
Bad bulbs usually show pinkish tint, or flickering or are dark at center top or bottom of the display.
ebays bammbammfran

Posted on Oct 05, 2008

  • 1 Answer

SOURCE: Please help me fix this benq monitor

There are many posts that have solved this. Check em out

Posted on Oct 23, 2008

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