Question about Dell UltraSharp 2001FP 20.1" LCD Monitor

1 Answer

I have a Dell SyncMaster 400Pn I did the flashlight thing and I can see a picture. So I assume I have a back light issue. How do I trouble shoot the back light???

Posted by on

  • 41 more comments 
  • Bud Martin
    Bud Martin Sep 16, 2010

    Can you please verify the make and model number of the monitor? Dell does not make Syncmaster series, Samsung makes Syncmaster series. Please verify. Failed TV and Monitors:http://s807.photobucket.com/home/budm/al...http://en.wikipedia.org/wiki/Capacitor_p...

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I am very sorry you are correct and it is a samsung. I am so used to working on Dells that I just automaticaly said it was a Dell it is a samsung syncmaster 400pn

  • mtnman47m Sep 16, 2010

    I replaced the bad capacitors on the power supply board and still no back light

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

  • mtnman47m Sep 16, 2010

    I check the fuses and the 24v power leads for both inverter boards they all check good. Any ideas where to go from here??

×

Ad

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
  • 11,361 Answers

This is a BIG monitor! First place to look will be the 24vdc power supply section of the power supply module, then check the surface mounted fuse on the backlight inverter board. You can use my LCD troubleshooting guide to help you out, it is jsut a big TV without a tuner sedction. I could not find many info about this monitor replacement parts.
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Posted on Sep 16, 2010

  • 1 more comment 
  • Bud Martin
    Bud Martin Sep 16, 2010

    The next signal will be the BL_ON (Backlight ON) signal on the inverter input connector, it should have either 3.3v or 5vdc on that pin to turn on the backlight circuits.

  • mtnman47m Sep 17, 2010

    Ok I get 3.28v at the on pin

  • Bud Martin
    Bud Martin Sep 17, 2010

    OK, so the processor is sending the ON signal to activate the inverter, and the inverter is also getting the 24vdc to power it, at this point it is going to be very difficult to troubleshoot without the diagram, the inverter board is bad. Do you see the screen flashes on for at least a second. It can be that one or two of the transformers are bad, but I need to know first if you can see the flash on the screen. I cannot find any pictures of the inverter board for this monitor either, you will have to send me good clean pictures for me to investigate further, budmrtn@aol.com

×

Ad

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

How do i fix my tv? it has sound but no picture it is totally black.


Do the flashlight test on the screen. If it passes the test then the issue lies with the inverter board that powers the backlights.

Mar 29, 2016 | Sanyo DP46849 46 in. HDTV

1 Answer

KDL-46XBR2. Why is there sound but no picture?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/.
Some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Jul 26, 2015 | Sony Televison & Video

1 Answer

While printing word documents, my Dell AIO 964 stalls in the middle of a job. It this this when I ran Windows XP and does on Windows 7 Professional.


Presumably it was on the same PC.If so there is something amiss with the fardware or with the settings for the printer.
If it does the same thing on two different computers you have a printer issue which may be very difficult to diagnose.
Assuming it is the former, try the printer on a different computer , if it prints ok the issue is with the pc rather than the printed. That is basic trouble shooting.
From there check for things like port settings, conflicts etc. Is it set as your default printer?

Try checking these points and if nothing is resolved please resubmit the query

Mar 14, 2015 | Dell Office Equipment & Supplies

1 Answer

Hannspree problems


Good day,
Hmmm, normally when there is no video the TV will go into shutdown. So, I would first take a very powerful flashlight/torch and shine it on an angle to the front panel to see if I can desern any video. I'm thinking you lost the back lighting and the panel is still okay. With a bright enough light you should be able to make out video playing on the screen.
If this is the case, then I would pursue the power supply for the back lighting. If you are going to trouble shoot the voltages there you may need a service manual to refer too.

Hope this helps...

Good luck...

Jul 14, 2014 | Televison & Video

2 Answers

Dell Precision M90 no boot and device status light next to power light is green


Here are Few steps which can use to trouble shoot your laptop no display problem.

1. Connect a VGA
cable for external monitor and check if you can see any display on External Monitor.
2.Take out your RAM and Clean it with Pencil Eraser and Put it back. If Possible try with different RAM,
3. Remove your Hard Drive and Try switching on Laptop without the Hard Drive.
4. Make sure that you are using proper Adapter with proper Voltage.

Aug 10, 2012 | Dell Precision M90 Notebook

1 Answer

How to trouble shoot backlight issue Sharp LC46D62U


either no voltage reaching it, not being turned on, or bad if the backlight.

Jun 11, 2012 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

1 Answer

Samsung 245BW No Display


have you tried this monitor on another computer? what was the result? Also, try laying the monitor down flat and see if you see any "ghosting" from the characters on the screen. (if the backlight goes out on the monitor, you should be able to see some of the graphics displayed on the screen still with a flashlight or at an angle if the monitor is working)
let me know what you find out

Jun 09, 2012 | Samsung SyncMaster 245BW Monitor

1 Answer

When i turn the power on at the plug it clicks the green power light on and off on its own without powering up


This is probably normal IF you are interrupting the power externally.

The processor in the monitor is just reseting itself before setting the power relay into the off mode.

Oct 17, 2009 | Samsung SyncMaster 400PN Monitor

1 Answer

Dell Dimensions 5100 Power Button


The power light is tied to the Mother Board and therefore it could be an issue with just about anything on the PC. Here is the trouble shooting documentation and the link should bring you directly to what the various conditions of the power LED mean.

There is also a detailed listing for the HD light as well as some diagnostic lights (if your paticular variation is equiped)

http://support.dell.com/support/edocs/systems/dim5100/en/sm/tshoot1.htm#wp1114432

Nov 22, 2007 | Dell Dimension 5100 (D51L1) PC Desktop

6 Answers

Lcd power off issue


Its the power supply!!
well i migrated to this issue from having no sound and video1.gif with just the power button illuminated. I replaced the power supply with one from an online salvage store and it worked fine for about two hours and then it shut off, turned it back on and then twenty minutes later off again...repeat... need an electronics person to trouble shoot and trace which resistors and or capacitors are overloading.
anyone??

Jul 11, 2007 | Dell W3201C 32 in. LCD Television

Not finding what you are looking for?
Dell UltraSharp 2001FP 20.1" LCD Monitor Logo

118 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18408 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

mukhtar21 shaikh
mukhtar21 shaikh

Level 3 Expert

2017 Answers

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

Answer questions

Manuals & User Guides

Loading...