Question about Acer AL1916W 19" LCD Monitor

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Monitor has no picture

After my pc boots, there is a hissing from the monitor, a flash of white with several horizontal lines through it...and then black. then the on/off indicator flashes.

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6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017


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

  • 1 Answer


I had one with the same problem. All the capacitors in the power supply were fried. If you're good with electronics, you can pull it apart and replace them (about 8 bucks in parts) or take it to someone who is.

Posted on Nov 12, 2008

  • 903 Answers

SOURCE: Initially disk boot failure now White screen but runs in oter mon

Try checking inside the computer for loose wiring near where the power supply box plugs into the motherboard, make sure that you turn the computer off and remove it from the outlet before opening it. While the computer is open, check all of the leads going into the motherboard are pushed in gently but firmly. Remove the RAM clean it with a soft paintbrush and then return them to there slots ensuring that they are seated correctly. Do the same with the graphics card and sound card if you have them in PCI slots or AGP slot returning them correctly into thier slots.
Put everything back together and before powering back on make sure that the power leads going into your PC and into your monitor have not been damaged in any way. Reboot your computer and try again. If you still get a shock or your computer does not boot properly then you may need to change the power supply box.

I hope this helps

Posted on Dec 15, 2008

SOURCE: Black & White lines across my monitor

1.Make sure all the connections are secure.
2.Try attaching the monitor to a different PC if possible, to determine if its the monitor or video card.
3.Your monitor might just be going bad

Posted on Jan 04, 2009

  • 5568 Answers

SOURCE: No image -- monitor remains black

Without any instruments to check it with, substitution is the best test; in other words connect the monitor to another system for a minute or two and/or a different monitor to your system. (If you can do either, don't do 'hot' swaps, turn everything off and then back on again.)

If you've noticed it; you may have seen that the LED flashes if the monitor is left on and the system shut down. Removing the VGA cable from the back of your system (or the monitor if it is separable) should produce the same result; flashing LED. If this is the case, then your video source from the system (on-board of add-on) has failed. If the video chipset on the motherboard has failed, it can be disabled and replaced by an add-in board for a few dollars.

Posted on Oct 12, 2009

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there are several reasons why picture of crt monitors did not display good picture. if your monitor had horizontal line at the center of the screen?...the faulty is in the vertical deflection, check the vertical oscillator also the fusible resistors & capacitors around that section. if there had vertical line at the center of the screen?..check the horizontal deflection, horizontal output transistor also check the YOKE.

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White line across screen

If your LCD TV or monitor has stopped working, or is displaying one of the following
symptoms, then it's a candidate for some new capacitors
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- Screen image disappears after several seconds
- Dim screen
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- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can
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If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life
of your monitor or TV by several years.

Take it to a repair shop.

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Hissing noise horizontal lines

Hello erl, hi.... the hissing noise is usually caused by high voltage arching, but this is suppose to be soft. if the hissing is unusually loud, the high voltage transformer clip cap may be loose, this may cause the horizontal line you see on the screen. take precaution when dealing with this.... here are steps that may help..

1. unplug the unit. allow around 5 minutes for all voltages inside the unit drops to a safe level.
2. open the back cover. place the monitor face down on a table with a dry clean rug or towel.
3. locate the picture tube. on the top side you will see a wire with a cap at the end.
4. use or wear a cloth glove and feel if the cap is loose. re clip the cap and make sure it is secured.
5. replace the back cover.

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Monitor is only showing vertical/horizontal gray/white screen

Your video card has fried unfortunately. If you are familiar with the internal workings of a PC you can open it up and check the power cells on the video card itself, they will usually show signs of damage such as cracking etc. I would have a qualified professional take a look at it. I would recommend as a starting place for finding a new one

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Flickering, jittery image, white horizontal flashing lines

this is real old right
no photo off i messing up, how can we guess, what you see?
my guess power pack shot.
i guess you cant barrow a monitor and try that?
2nd guess blind, the back light failing
or is damage if it was hit, the LCD will have damage
gently flex the frame goes nuts, bingo.

Mar 02, 2017 | HP Pavilion F1703 17" LCD Monitor

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LG F700P monitor black out on top half, horizontal white line

Sounds like your monitor or graphics card may be going bad.

Dec 07, 2008 | Computers & Internet

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Ghosting, Flickering, Green Sparkeling Lines, Color Washout.

I had a similar problem on a different monitor and fixed the green sparkles by selecting a lower refresh rate.

Aug 15, 2008 | Samsung SyncMaster 204B 20.1" LCD Monitor

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Heavy white lines accross the screen

change the ram and viedo card agian

Jun 07, 2008 | Computers & Internet

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I was adjusting picture on monitor and now picture completely messed up

  • Signal out of Range.
  • Out Of Scan Range
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This issue may occur if the signal from the video adapter exceeds the scan range of the monitor. The video adapter setting for updating the screen (the refresh rate) is incompatible with the monitor.
you should reinstall your video drivers in safe mode.

To restart in safe mode repeatedly press the F8 key during the computer startup. This will bring a menu where you'll be able to choose safe mode.

LCD monitor 60 - 75 Hz

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1 Answer

Had horizontal Lines replaced now have error 21 xray circuit

White horizontal line (no vertical deflection)
Check / replace R548, R549
Sound but no picture except for a couple of horizontal colour lines
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Severe vertical jitter on picture, horizontal sides of picture ragged
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White line down centre of screen (top to bottom}
Replace C805

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