Question about Dell E172FP 17" LCD Flat Panel Monitor

1 Answer

Dell E152 Flat Panel screen is REALLY dim.

I have a Dell E152 flat panel monitor that doesn't work correctly. It turns on and the green light comes on, but the display can barely be seen. I believe the backlight is no longer working. You have to look extremely hard to see the display...basically....the display is extremely dim. Any help is greatly appreciated. Also, could someone explain how to properly disassemble these monitors? There are screws in the back of them that i've never seen before....they look like holes for screws. Thanks.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,392 Answers

I haven't seen this particular monitor. It may have deeply recessed black screws, or possibly even Torx screws. Try a #2 Phillips and see if it engages firmly. If not, try a T-10. Once you get inside, you will need to remove the power supply and main board to get at the LCD panel. Locate the inverter circuit - it will have two Teflon insulated wires going to (usually) the bottom corners of the panel. It may be part of the power supply board. Every LCD display I've seen so far uses pink colored insulation on those wires. It is possible that the inverter has failed, but most of the time, it's the fluorescent tubes inside the back of the panel.

Getting at the tubes without breaking something is not a trivial task. You will most likely need a #00 Phillips screw to remove the shield metal. Observe anti-static precautions from the moment you open the monitor. Be patient, and keep track of every part or connection you remove. Do not remove the LCD driver circuitry (generally at the top) from the panel. The tube(s) are usually at bottom, enclosed in a sheet metal reflector held in place by the bottom section of the thin metal frame around the panel, just inside a flexible white plastic sheet that covers most of the back of the panel.

You can get new backlight fluorescent tubes from www.lcdparts.com. This website has links to some very helpful pages on repairing LCDs. Note: replacing the tubes involves some rather delicate work. If you are nervous, twitchy or clumsy with fine work, you'd be better off to hire out the job. Be very careful not to rip the rubber insulators on the ends of the tubes when you slide them down the insulated wires to expose the connections to the tubes. You have to attach the wires at just the right spot or you won't be able to fit the insulators back on and get the new tubes to go into the LCD frame - and you can't apply heat to the wires for more than 4 seconds at a time. I've done a number of them successfully, but have occasionally had to try several times to make the connection sufficiently small and short.

Posted on Dec 18, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Service manual dell e173fpf


Try here:
http://elektrotanya.com/?q=showresult&megnev=dell&megnev2=e173&kategoria=&kat2=all

Most E152/153.172/173 have same problem, poor solder joints, blown fuse, shorted transistors.
http://s807.photobucket.com/home/budm/allalbums

Replacement bd: www.lcdrepair.us
Hope it helps. Please post back.

May 03, 2010 | Dell E173FPf 17" TFT LCD Flat Panel...

1 Answer

Dell e152FPB LCD monitor backlight power problem


Check the four transistors (c5707/5706) in the inverter section for shorts, board looks like this? http://www.lcdrepair.us/e152-e153fpb-inverter-power.html

Feb 20, 2010 | Dell E152FPb 15" TFT LCD Flat Panel...

1 Answer

Monitor turns off and is dim


replace pwr inverter board...
replace the video/keyboard as well...

Feb 08, 2009 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

Dell - 17" flat screen


This sounds like the back light is gone on the monitir... to check this look very close at the monitor whet the PC has booted, if you see a VERY dim image on screen then it suggests that the back light is gone.

Many monitors hace a 3 year warranty so I would try a warranty claim before throwing it away

Jul 12, 2008 | Dell E172FP 17" LCD Flat Panel Monitor

2 Answers

Screen not working


there is a problem with the degausing coil of the monitor. just open the case and try to clean the degausing coil. thx jsut vote for me so that i can help u better.

Aug 29, 2007 | Dell UltraSharp E153FPb 15" LCD Flat Panel...

2 Answers

Dell ultrasharp 15 inch flat panel lcd


It totally sounds like the backlight is toasted. If that is the case you will have to replace them. Normally if the power inverter is shot, the monitor will power up briefly at least and then shut off. If you can use a flash light and see some sort of image on the screen you know that your VGA chipset works however your backlight(s) are burnt out. If not, more than likely your power supply (power inverter chipset) is broken and needs to be replaced..

Mar 28, 2007 | Dell UltraSharp 1704FPT 17" Flat Panel LCD...

1 Answer

Dell flat panel monitor


It's a problem in the power supply section inside the monitor. It needs component-level electronic troubleshoting.

Jan 16, 2007 | Kogi l4bx-na ko 14.1" Flat Panel LCD...

Not finding what you are looking for?
Dell E172FP 17" LCD Flat Panel Monitor Logo

324 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell Computer Monitors Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18299 Answers

William Miller
William Miller

Level 3 Expert

8820 Answers

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

Answer questions

Manuals & User Guides

Loading...