Question about Verilux Modern Deluxe Natural Spectrum Desk Lamp

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Lamp is sitting next to my computer. When lamp is turned on, it darkens computer screen. Computer screen light returns when lamp is turned off.

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Your computer screen may have a light leveling sensor, if you find your monitor has this you can cover the sensor with electrical or masking tape. Clear plastic tape will not help. Good Luck!
Douglas

Posted on Jan 28, 2011

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Posted on Jan 02, 2017

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I will like my computer screen darken


check the setting from there you can or from your keyboard you can also

Jan 02, 2014 | AOC LM742 17" LCD Monitor

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Picture has progressively darkened over the past few months. Replaced the lamp which did not help. Next place suggested replacing te lamp ballast which did not help either. Now I'm being told it s


You might want to talk to JVC as this model had all kinds of issues--missing any color, picture inverted or backwards just to mention a few.

The solution was to connect it to a computer and use a jig from JVC and download two up grades on sd cards and install them manually.

I mention this as the Light engine in the set communicates with the main chassis and you in fact may have a issue with that.

At least make a call to JVC---saw about 40 sets with this model where this cures all sorts of communication issues--the engine if "set" wrong could easily cause this problem.

Dec 19, 2012 | JVC HD-52G786 52" Rear Projection HDTV

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LOOKING FOR A REPLACEMENT SCREEN


Darken the screen and either move the lid forward or backwards. Laptops have Liquid Crystal Screens and moving the lid backwards or forward will give the screen a different look.

If you need to adjust the brightness of the screen it is controlled by keys on your laptop. Most times to darken the screen you will have to hit the FN, CTRL or ALT key and hold it down while you hit the key that corresponds to the screen darken key. On some computers (even on my laptop) it will be the down arrow key, so i would press FN+the down arrow key. Remember to hold the first key down while you hit the next key. The icon used for most times to denote the brightness or darkness looks like a circular sun or a washer that goes on screws.

Mar 22, 2012 | Computers & Internet

2 Answers

My Satellite l305d-s5904 turns on but the screen won't. I let it charge and lights on the keyboard come on but the screen just wont come on. I had tested my mom's monitor in it some days before this...


If you checked with external monitor, the inverter board sits under the screen housing is more than likely the problem, failing that! the lamp inside the screen housing, either way a computer tech is recommended.

Dec 31, 2010 | Toshiba Satellite L305D-S5904 Laptop

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My screen is dark, power light is on and won't turn off. When I hit the 'menu' button the screen lights momentarily(I can see the ICONS) then darkens immediately. I have unplugeed it and checked all...


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 ACER 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 07, 2010 | Acer AL1716B 17" LCD Monitor

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After 5 minutes monitor screen dims--can faintly see the windows screen and then it flickers out and there is nothing. Any ideas?


the monitor may be going into power save mode which it should come out of when you press a key or move the mouse but it sounds like you have tube inverter issues. Your screen has light tubes behind it to illuminate the screen, if the tubes or the inverter develop a fault, then a very dark screen can result as the tubes are turned off. There may also be an ambient light sensor which will darken the screen in low ambient light. If the sensor is faulty, darkened screens will result. If the inverter is failing, you may be able to replace it, contact viewsonic. if the tubes are failing, replace the panel or the entire monitor. If the ambient light sensor is faulty, replace the panel or entire monitor as the sensor is part of the display panel.

Nov 02, 2009 | ViewSonic VG900b 19" LCD Monitor

1 Answer

What causes Viewsonic VX910 to go to black screen one second after power ON?


Depends of front LED behavior: if it turns off as well then power supply gets overloaded, if it stays on then inverter turns into protecting mode.
In first case check for suspicious looking electrolytic capacitors over power supply module.
In second case you may need to check backlight lamps, driver MOSFETs in the inverter (if PCB around and under them is darkened, better replace them). More unusual problem is faulty high-voltage capacitors in secondaries of pulse transformers, or damaged insulation of high-voltage wires from inverter to lamps.
Please ask if you need you need more specific info about MOSFETs or lamps replacement.

Sep 12, 2009 | Computers & Internet

2 Answers

Didj will turn on but Warning screen is just frozen.


I had the same problem. What you need to do is open the Leapfrog connect and then plug your DIDJ into the computer. You also need to plug it in with the AC adapter as this takes time and the first time I tried the batteries died. So plug it in or put new batteries in it. Now just leave it sit plugged into your computer with the Leapfrog connect program open. It took mine almost 2 hours just sitting on the white Warning screen then if finally connected and updated the software and is now working fine. Hope this helps.

Jan 18, 2009 | LeapFrog Custom Learning Didj Racing -...

1 Answer

LCD monitor display not working


The problem you have is with the backlight lamp, which is not turning on. When this happens only because lamp is faulty, Acer LCDs have a security switch that will not turn the screen on at all and will return a blinking light on power on led , as diagnostic feedback.
If you have a dim light it sometimes means that the bulb is still ok, but is not working. This often happens because of a faulty capacitor on inverter, which is powering the lamp.
Although the above symptoms are typical of a faulty inverter, a faulty power supply, lamp, or A/D board can produce the same symptoms.
It's also possible that an inverter could have been damaged by a faulty lamp. If faulty lamp is not replaced before refitting the repaired inverter, in time, the inverter will fail again.

Best thing to do is taking your lcd to a local TV repair or computer repair that works with lcd (ensure they work proficiently on lcds , some of them doesn't), to test if it is the lamp or a faulty component on board. If possible find a shop giving you some warranty time, as, if there is more than one problem the LCD can fail again in few days.

Regards

May 06, 2008 | Acer AL1714 17" LCD Monitor

1 Answer

Samsung HL R5067W Problem


You have a bad Light Tunnel in the Light engine, you can replace the engine, or try to replace the tunnel.

Jul 31, 2007 | Samsung DLP HL-P5663W 56" TV

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