Question about Sharp Computers & Internet

3 Answers

Help! Any assistance or advice would be very much appreciated. I have a Sharp LL T19D1-B LCD Minitor purchased a little over 3 years ago. I had a mac plugged into one analogue input of monitor, screen suddenly displayed random vertical multi coloured lines then wouldn't power up again. I've disconnected everything, checked cable and graphics card output on another monitor - which are fine. I can change the input channels on monitor but all I get is a bright green screen and no apparent output from graphics card. Any suggestions much appreciated. Regards, Paul

Posted by on

  • paultaylor48 Sep 26, 2008

    Thank you both ToddG and kornho. I guess it's time for the soldering iron as I've got nothing to lose should it go wrong! Could either of you point me towards the right board within the monitor then I can try and get the components and a steady hand to attempt to fix the problem. Will let you know how I get on, Thanks again for your advice.  Cheers, Paul


×

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 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.

  • Expert
  • 171 Answers

This is the power supply inside the monitor itself. It is board that has three capacitors and they are blown out. It is a very inexpensive fix, if you are good with a soldering iron, if not let mw know and I will direct you to a company that can take care of this, for usually $30.00

Posted on Sep 26, 2008

  • Todd Gale
    Todd Gale Sep 26, 2008

    These should more or less be the instructions for the monitor. I have adapted them from other monitors, so the disassembly could be a little off, but the PCB capacitors is correct



    The cause of this problem is the failure of 1 (or more) of 3 capacitors that are a part of the power supply.

    Tools needed
    Phillips head screw drivers.
    Flat tip screw driver.
    Soldering iron and solder.
    Wire cutter

    Skills needed

    Only basic tools and simple soldering techniques are required. There are a lot of steps listed below, but they are quite simple and detailed.

    Cautions
    We are dealing with electricity here, so take the necessary precautions not to electrocute yourself or burn your house down.
    Please take written notes. It is all too easy to forget how something plugged into something else.


    The fix
    Replace the three capacitors with new ones.

    Order 3 capacitors with the following specifications: 470uF 25V High Temp Radial Capacitor (470µF 25V).

    Disconnect the monitor from the computer and the 110 power source.
    Remove both cables completely.

    Lay the monitor face down on a large flat surface. You may want to lay a towel down beneath the monitor to protect the bezel.

    Remove the 4 phillips head screws that secure that stand to the back of the computer and set the stand aside.

    Remove the 3 phillips head screws that secure the bottom of the bezel.

    Using a wide, flat bladed screwdriver, carefully pry the back cover off. It is made out of plastic, so be careful. It will pop off fairly easily. Once off, set it aside.

    Note the rectangular center metal piece that is screwed to the main body of the monitor. This is the where the power supply is located.
    There will be adhesive foil stuck around various locations on the back of the monitor. Lift it away if you can...or VERY CAREFULLY cut it if you cannot. CAUTION: There are wires beneath most of these foil pieces, so be very careful.

    Make a note of where each wire goes.

    Unplug all the wires.

    Remove the 4 phillips head screws that secure the rectangular center metal piece to the main body of the monitor. Withdraw the metal piece and set the main body of the monitor aside.

    Flip the removed piece over so as to expose the circuit boards.

    Pull off the clear plastic protective piece. Try to keep it intact as you will want to put it back in place during assembly.

    The power supply circuit board is the one into which the power cord is normally fitted.

    Remove the 4 phillips head screws that secure the power supply circuit board in place. Note that one of the screws is different (designed to ensure a good ground connection). Note where it is located so you can return it to the same location.

    Very carefully withdraw the power supply circuit board. It is connected to the neighboring board with a pin connector that slides out.

    Identify the three capacitors. They are black with silver tops and have a gray stripe on one side that signifies the location of the negative post. The manufacturer is CapXon and the "470uF 25V" (470µF 25V) specification is printed on the side.

    Note the location of the negative post. The circuit board is also marked.

    Using a soldering iron, unsolder each post from the board:
    Ensure the soldering iron is very hot.

    Hold the board in a vertical position.

    Use a finger to place light pressure on the capacitor as if you are prying the capacitor away from the post that you will be unsoldering.

    Touch the tip of the soldering iron to the post (on the under side of the board).

    Maintain pressure on the capacitor as the soldering iron heats the post.

    When the solder liquefies, the capacitor will pull away from that post.

    Repeat this technique for both posts on each capacitor.

    Insert the new capacitors being sure that the negative post is inserted in the proper hole. The circuit board is marked. Or, you can refer to your notes.

    Solder each post in place.

    Trim the excess length off each post.

    Reassemble in reverse order.

    Test the monitor with the power cord only (no connection to the computer) before plugging it back into the computer.

×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Worked for my SCEPTRE x22wg-Gamer Black 22" 5ms(GTG), only it had 4 of the Capacitors

My problem was that the monitor kept trying to power on for hours at a time untill it would actually turn on. hope this is helpful for other people with SCEPTRE monitors.

Posted on Dec 08, 2009

  • 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
  • 781 Answers

If you tested the video card and the connection from your monitor to your mac and that worked using another monitor.. you need to replace your lcd display, your description does sound like monitor that just died.

unless you are trained you don't want to start poking the inside of your lcd display.

Posted on Sep 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

Can you upgrade cpu in dell 15 i5559-4682slv to i7 ?


It is almost impossible to upgrade proprietary makes like Dell and HP. The are big enough to have motherboards made for them manufactured on price point. This means that they are not built with upgrade in mind. Also the cases are made to fit their motherboard and theirs only.

Go to a computer builder and get a good case, buy a good quality motherboard and equip it with what you can afford. In two years you can upgrade as processors have moved on. Two years after that, you can swap out the motherboard, processor and memory.

Jan 12, 2017 | Dell Computers & Internet

5 Answers

How long does take schools take decision about my applocation?


Applications takes up to a month to be processed and up to 3 months to reach a decision as only the best applicants gets accepted. When reviewing your application they look at your achievements, marks and school absence etc

Sep 20, 2016 | Computers & Internet

2 Answers

I wonder if the motherboard has bluetooth integrated or I have to put an external bluetooth devise


One way to find out:
Click on the start button > right click on 'computer' > choose properties > (top left) device manager > you will see a list of drivers
Bluetooth should be near the top
IF you don't see Bluetooth, you will need to purchase an external Bluetooth receiver.

Apr 05, 2015 | Acer Aspire 57386444 15.6 Laptop Lcd...

1 Answer

Thanks for all your help on ram chip now here is some thing no one has ans.


What is the setting on your computer for the clock? Make sure it is right.

Jan 12, 2015 | Computers & Internet

1 Answer

9.9 merc outboard serial # 114058 what year is it ?


The best I can tell the year would be 1986.

Is the Serial number A114058?

Jul 03, 2014 | Computers & Internet

1 Answer

Where can I purchase a replacement remote control for tv in WA


Exact OEM replacement remote you can try the manufacturer or www.replacementremotes.com. No store will carry what you are looking for, but you can find universal remotes in any electronic store on the planet. Wal-mart, RadioShack, BestBuy, etc. Whatever is closest to your location. Good rule of thumb is if they sell TVs, they sell universal remotes.

May 21, 2014 | Computers & Internet

1 Answer

P850 049 laptop


Take it back to the place of purchase and get a replacement as it is under warranty.
Do not try to fix it yourself as you may void your warranty.

May 15, 2013 | Computers & Internet

4 Answers

C:\preload\data9_04.inp cannot be recovered


You can recover the file with 3rd party data recovery software.I have succeed to recover files from external hard drive with Tenroshare Data Recovery.It can recover data after deeply scanning your hard drive to look for lost files. By the way,you can download it and scan your hard drive for free to preview whether your file can be recovered. Get it from http://www.any-data-recovery.com/product/datarecoverystandard.htm

Jul 31, 2011 | HP Media Center m1080n (PC099A#ABA) PC...

1 Answer

After turn on my computer I have only three short beep.


Open the cpu cabinet cover.Then reconnect the RAM memory into motherboard. Make sure motherboard is not ground with cabinet cover. Clean dust from motherboard .If there is any pci or vga card reconnect it. Also pull cmos cell from motherboard for 10 minutes then all settings defaults then check. Let me know if you need further assistance. Thanks for using FixYA.

Feb 03, 2011 | Computers & Internet

3 Answers

I have doctor antivirus pop ups


Unfortunately, the only way I've found to be completely rid a machine of this is to wipe the hard drive and reload the operating system. This is an advertisement virus and this particular bug leaves several sleepers that lie inactive making it near impossible for any antivirus to find them. Once you get rid of the active virus, one or two, but not all of the sleepers will activate leaving several more hidden and inactive, and what makes it even harder to "get rid of" is that it hides the sleepers in file that your antivirus normally doesn't check on a regular basis, ie... picture files, music, screen savers, etc.. It will also hide them in registry files, so doing a system repair won't work either.

Jul 07, 2008 | Toshiba Satellite P105-S6104 Notebook

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

Related Topics:

510 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Computers & Internet Experts

PrintDocta

Level 2 Expert

217 Answers

Jason Harris
Jason Harris

Level 2 Expert

256 Answers

Ricky Ostrom
Ricky Ostrom

Level 2 Expert

270 Answers

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

Answer questions

Manuals & User Guides

Loading...