Question about Computers & Internet

2 Answers

I have a Westinghouse flat LCD monitor,model:LCM-19w4 Problem; no power, replaced power board: DAC-12M030B Still it will not turn the monitor on. Do you have any suggestions where we can check??? Thank you.

Posted by on

  • rghouseholde Aug 04, 2010

    Westinghouse LCD monitor LCM-19w4 no power at all, bought new power board: DAC-12m030b still doesn't power not even the led, back light burned, can't see the inverter, can you assist??

×

Ad

2 Answers

  • 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.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 567 Answers

Hi you should check the connection from from the monitor to the computer, if that is fine then you need to try a different power cable, if you have the same problem you may need to change the video card

Posted on Aug 04, 2010

×

Ad
  • 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
  • 11,800 Answers

The biggest consumers in an LCD tv are the inverters for the CCFL tubes. If one of them is faulty then surely the power source will completely shut down . Check them first since they are also the first components that fail.  

Posted on Aug 01, 2010

  • 4 more comments 
  • rghouseholde Aug 01, 2010

    We talk about a Flat panel monitor for computer, is it the same as the tv?,

  • Azrael SRL Aug 01, 2010

    The difference between a tv and a pc monitor is that the tv has a tuner and its menu has more options so yes, it's exactly the same.


  • rghouseholde Aug 01, 2010

    Since it is a monitor, how do you test a converter?? what is the sign?? I don't have a manual, I tried to look in the web for one, but none available.




  • rghouseholde Aug 01, 2010

    Since it is a monitor, how do you test an INVERTER?? what is the
    sign?? I don't have a manual, I tried to look in the web for one, but
    none available.


  • Azrael SRL Aug 01, 2010

    An inverter (one for each tube) transforms low DC in high DC so to test it is easy - check the voltages in and out of it.


  • Azrael SRL Aug 04, 2010

    The inverters are the 2 black boxes at the top of the power source but they can't be the cause, they are new. Check the voltages at their exits (beware, it should be very high) if none is present then disconnect the tubes wires and try again - if the motherboard is ok then the image should be visible with a flashlight. If it's the same then the motherboard was completely fried. In that case it's time to cut your losses and get a new monitor.


×

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

The monitor Westinghouse model LCM-19w4 when I turn on the computer the screen remains black even with a green light on and I can use a flashlight to see the screen. When I turn it on and off the scre


It's mostly likely a bad capacitor in the main power supply of your monitor. If you're brave enough to dismantle it, look for capacitors that're "crowned", and sometimes even rupture from overheating in such circumstances. You can order replacements from Digi-Key if you can figure out which might be your problem, but I'm not sure I recommend you try this unless you have at least SOME soldering/desoldering skills or a friend who does. You COULD wind up worse off. It's up to you, only YOU know your personal skill level for such tasks. And do I need to say, UNPLUG it before dismantiling? :)

Mar 16, 2014 | Westinghouse 22" Widescreen LCD Flat Panel...

2 Answers

Lcd-17v8 monitor power won't stay on. westinghouse monitor


If the monitor turns on and goes directly to sleep, or it powers on briefly and shows an image then goes black then the monitor is defective. The first is often an I/O panel issue inside of the monitor. The second is typically a lamp failure within the monitor.
A simple test would be to plug a different monitor into your computer or this monitor into another computer. If the monitor doesn't work on another computer or a different monitor works on the same computer then the monitor is the issue.
If the different monitor does not work on the same computer or this monitor does work on a different computer then something on the computer is to be suspected such as a driver issue or a faulty video card.
If you find the monitor is defective then you should dispose of it (assuming it is not under warranty) at a nearby recycling center and purchase a new monitor. I would suggest something by Acer, Samsung, Dell, HP, NEC, or Viewsonic. These brands cost a bit more, but have much better track records.

Sep 06, 2011 | Gateway FPD2275W LCD Monitor

1 Answer

The screen goes on for a second and then turns off. If I then turn the power on and off numerous times it eventually stays on. I put the screen off to 60 minutes. Every time the screen is allowed to turn...


Hello Geoff,

The problem you are having is caused by a power supply board that is failing. Your monitor uses the Delta DAC-12M033 power supply board. We have a repair guide for the Westinghouse LCM-20V5 monitor that uses the same power supply board posted o our web site at: http://www.ccl-la.com/blog/index.php/repairing-the-westinghouse-lcm-20v5/ Check out the web article, it should get you back going again. If you don't want to do the repair yourself we do offer a repair service. We can get deatils on this service here: http://www.ccl-la.com/blog/index.php/service-request-form/

I hope this helps, if so please rate our solution.

CCL Tech
Corporate Computer
www.ccl-la.com

Oct 26, 2010 | ViewSonic VG2021m LCD Monitor

1 Answer

My lcd monitor model lcm-19w4 i have to plug and unplug the monitor a few times for it to go on help


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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 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

http://www.badcaps.net

May 15, 2010 | Computers & Internet

1 Answer

My lcd monitor model lcm-19w4 i have to plug and unplug the monitor a few times for it to go on help


Hello,

This is a classic symptom of a failing power supply. There are parts called capacitors in the power board that will start failing and not filtering the power correctly. The regulators on the power board will not work until the power is filtered correctly and when you keep powering it on and off it fill finally start and run until you power it off, then you have to start over again. We have a step by step repair guide posted in an article on our web site at: http://www.ccl-la.com/blog/index.php/repairing-the-westinghouse-lcm-20v5/ This model is a little different from yours but the power supply parts are the same. If you have any additional questions just ask.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

Mar 29, 2010 | Computers & Internet

2 Answers

Westinghouse Monitor Repair


you can look for other caps that are bad on the board that may have failed later.

hear is a list of replacements for all the caps on the 20v5 i have

http://www.fixya.com/support/t2576306-two_westinghouse_20v5_monitors_also_just

Apr 01, 2009 | Westinghouse LCM-19v5 Monitor

2 Answers

Westinghouse LCM-19w4 has power, but blank screen


refer to an earlier post about similar problems. Does it power up and then shut itself off. this is possibly due to two defective capacitors. 27 cents on line $1.50 at radio shack. They will be puffy on top. I am a complete novice to soldering a capacitor onto a board. but since I was junking the monitor otherwise I gave it a try. It's still working after sitting idle a year. Handy advice on soldering online. use copper wire to **** up the old solder and try not to fry the capacitors or the board. If I did it anyone can.

Mar 22, 2009 | Westinghouse Computers & Internet

1 Answer

Westinghouse LCM-19W4


I had the same problem with my two LCM-19W4 monitors. Both failed within two months of each other. Radio Shack stocks 220uF 35V capacitors that work fine for this. You have to pay $1.49 ea though.

Nov 02, 2008 | Westinghouse LCM-19v1 Monitor

1 Answer

My Westinghouse LCM-19w4 Monitor will not turn on,..it just blinks and nothing


I just repaired my LCM 19W4. My symptoms were a little different; the light was not on or blinking like yours. I replaced two bad capacitors today (220 uF 25V High Temp) So far so good. Bad caps can be easy to identify; they are slightly bulging at the top. Soldering can be very tricky though. But just like plodder said, make sure it's the monitor that's bad and not something else by hooking up a known working monitor first.

May 18, 2008 | Computers & Internet

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

Related Topics:

45 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 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...