Question about Computers & Internet

1 Answer

Dell monitor keeps turning off...

I ran across another thread on this website describing a problem similar to mine and I was hoping you might be able to help me.

Here is the link: http://www.fixya.com/support/t123725-monitor_goes_blank_less_second_after

Following the suggestions, I took the monitor apart and was fully prepared to replace transistors, capacitors or whatever but I can't tell which ones to replace. There's nothing that looks "obvious." I took a few pictures and was wondering if someone might notice something that jumps out.






Incidentally, my monitor is about 4 years old (one year PAST the warranty...GRRRR). I did try hooking the monitor up to another computer and it does the same thing (goes out after about 2 seconds). I tried the flashlight test but couldn't see anything.

Honestly, I 'm getting ready to throw the darn thing out the window and go to Wal-Mart to buy another one as someone else suggested. In last two weeks, sometimes when I turn computer on the monitor is just a black screen and it flashes in time with the on off button. Sometimes it will come on and do fine. Sometimes it goes off while I am in the middle of something. Sometimes I can shake the monitor a bit and picture will re-appear. It is getting very annoying. It is 4 months out of warranty. I am thinking I may need to buy a new one.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 379 Answers

Hello,
The problem you are experiencing is quite common, however the solution can be expensive and frustrating if you are not sure what you are doing. The problem is due to usually 1 of 2 things but the result is the same. The result is that the H.O.T. (Horizontal Output Transistor) is blown or severely damaged and needs to be replaced along with the item that caused it to go bad to begin with. Note: sometimes just the H.O.T. transistor can be replaced and it will work ok (this is rare and due to just being over-used).

The problems that caused the original issue is either the H.O.T. Transformer (a black device with heavy red wire insulation going between the mainboard and the picture tube with a wide boot on it). The other main culprit is the picture tube itself that will internally arc between the pins on the end of it.

These devices develops internal shorts that wipe out the H.O.T. transistor which is mounted to a heat sink.

None of your pictures show this board (it appears to be the same 2 boards in different poses). In your case it sounds like the picture tube is at fault and not worth repairing.

One other possibility is just poor soldering on the main board but this is extremely rare fault.

Hope this helps!
Rich Lilja

Posted on Nov 26, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Kids ran magnet across screen


Magnets do not affect LCD screens.
If your screen is a CRT monitor then a magnet will cause this problem.
Try turning off the monitor and back on several times and the degaussing coils on the monitor may fix this problem. If the screen is still discolored then take your monitor to a TV repairer and they can degauss your monitor with a more powerful degaussing tool.

Apr 05, 2013 | Dell Inspiron 1545 Notebook

2 Answers

When I turn on my computer the monitor light turns green then turns yellow. And won't come on.


I just had this same problem recently. As a computer tech I prefer fixing other peoples computers and NOT mine. Your case may be similar to mine. If you have a good monitor you will be hoping that it isnt similar to mine. Ok the short of it is either your monitor is bad or your video card is bad. First lets make sure we have covered the DOH items. These include making sure the video cable is plugged in all the way on both ends. Also make sure the video card has stayed seated in its slot on the motherboard. If Video card is integrated then this wont even be a possibility. Now take a known good monitor and swap it in. If you are like me you appreciate as big a monitor as you can get and hopefully you still have an old small one hanging around. If you dont have you you may need to borrow one from a friend or work. If the known good monitor works then your monitor has gone bad. It happens all the time. I have a stack of dead LCD monitors. some can be fixed and some cant. You can also take your monitor to work to test it with known good computers. Keep in mind that if the monitors are different sizes you will need to make sure the computer is shut off before plugging the monitor in. The system reads info from the monitor to make sure the resolution can be handled during boot. Your symptoms generally mean the video card is not working. The monitor light goes orange because it is not getting a signal. That signal can be interrupted in the monitor as well though. Testing will tell you which it is.

Aug 11, 2010 | Norcent Technologies Computers & Internet

2 Answers

The screen will not come on when the computer comes on on my dell xps notebook. The laptop comes on but the screen stays black when turned on.


I had a similar problem with a one year old Dell laptop, and it turned out that the screen was OK on battery power, but when you plugged it in to the AC charger the screen went very dark. It turned out to be the LCD backlight inverter, which I purchased from a fellow in Florida for about $16 and installed by following the instructions at http://www.insidemylaptop.com/remove-replace-lcd-screen-video-cable-inverter-on-dell-laptops/ . Hope this helps you out a bit...

Mar 29, 2010 | Dell Studio XPS 16 Notebook

1 Answer

Can't get monitor to power on


I have a similar switch on mine, although mine is a Gateway. So my solution is going to assume the same indicators and functionality.

On mine, a blue-violet power switch indicates it is off, red indicates standby mode, and blue to indicate it is on and/or searching for a signal. When turned on (blue), the monitor will go to standby mode (red) after 3 to 4 seconds if it does not detect a source signal. So if you toggle the power switch to blue and it soon changes to red, you'll need to check your signal, cable, or possibly for a bad source connection on the monitor.

Oct 12, 2009 | LG L206WTY-BF Monitor

1 Answer

Dont know how much gas i have in gas tank


Same thing happened to me. Keep an eye on your trip meter for gas usage, otherwise, change the sending unit.
I lost track of mine and ran it bone dry, causing the sending unit to overheat and quit working. Pain in the *** to do it yourself but cost effective. My Step by step instructions are in another similar thread. Hope it doesn't happen to you that way. It's an '03 Malibu, so it was going to happen anyway.

Jul 05, 2009 | 2003 Chevrolet Malibu

1 Answer

Power cord for Dell Monitor 2005FPW


I got this from the website at Dell. It looks like the cord you want is the second one. I'm basing this on the fact that normal operating wattage is 55w with a max of 74w and that would describe your second cord. The first one wold provide too much power.




VESA Modes
Horizontal Sync
Vertical Sync
Video
Power Indicator
Power Consumption
Normal operation Active Active Active Green 74 W (maximum)*
55 W (normal)** Active-off mode Inactive Inactive Blanked Amber Less than 3 W Switch off - - - Off Less than 1 W(at 110 Va)

Dec 26, 2008 | Dell UltraSharp 2005FPW 20.1" LCD Monitor

5 Answers

Dell monitor keeps turning off...


I have a similar problem, except if you look very closely, from an upwards angle, it isn't off, but on the darkest contrast setting. The Dell monitor that I am using has 4 buttons in the bottom right corner. The first is silver, the second is silver with a - on it, the third has a +, the fourth is larger than the rest and is the power button. If you press the first button, the menu will pop up. Then press the third button (the +) to go down to 'factory settings'. after that, press the blank menu button again, then the + to go down to 'all settings,' followed by the menu button again to confirm. To recap, press the first, third, first, third, first and it should fix your settings. This may only happen temporarily, and it may go black again. If it works at all, then it is the contrast getting out of whack and not the monitor shutting off at all.

Nov 14, 2007 | Dell E193FP 19" LCD Monitor

1 Answer

Monitor display


You might want to check the refresh rate in your advanced settings under display properites. Under Windows it shouls be something like: Start Button > Settings > Control Panel > Display Then click on the Settings tab, and on that screen click Advanced On that screen, click on the Adapter tab. At that point, make sure the adapter listed matches yours, and refresh rate should probably set to adapter default. Hope that helps.

May 18, 2007 | Dell E173FP 17" LCD Flat Panel Monitor

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

775 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...