Question about CTX Multimedia Series 2900 (Black) 29 in.CRT Conventional Monitor

1 Answer

Black screen in my CTX MS2900VS TV monitor

Hello,

Suddenly I began smelling frying odor then the screen went totally black and when I pass my hand over the screen I don't feel the usual electrostatic surge. The tuner can still detect channels but I can only hear the sound and pull the picture out to a video capture card. I cracked the box open and found a leaky capacitor C106 100uF/250V/105C that I replaced but the screen is still black. The cathode light turns on so I feel that there's something going on with the HV circuit. I'm not at all a TV expert but I feel that the flyback transformer is fried. It had model # TLF222A-31K1-72 written on it. Am I correct? Does anyone know where to find this part?

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.

  • CTX Master
  • 5,568 Answers

If the flyback has failed, it isn't alone. If they break down inside, they will destroy the horizontal output transistor; largish plastic part mounted on a heatsink next to the flyback. If your set was built between ~2003-2006, you may have many more defective electrolytic caps and some of them are responsible for feedback tasks in several circuits and these defective caps lose value much sooner than those made with quality dielectric fluid. The bad fluid was used by many Asian companies and was made in China from a formula stolen from Japan and then modified to save a few yuan. There is no visible way to identify the affected parts other than measuring them with a capacitance meter since they don't always 'bleed' when dying.
You really also need an inductance meter to determine if the flyback is bad (special testers for these were once made but no more) and even then, it is questionable whether you can find one to buy.  All the suppliers I once used are defunct.  

Posted on Oct 11, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Desktop monitor went black & and wil not power up


Try the fuse on the monitor power cord, and if this does not cure, you will have to get another monitor....pretty good prices on ebay!

Jan 04, 2010 | Computer Monitors

1 Answer

Desktop PC monitor suddenly went black & power light went off


1 either ur VGA card is corrupted or
2 RAM is corrupted
3 Last may be your motherboard is gone - not sure

Jan 04, 2010 | Computer Monitors

1 Answer

Tried a power supply that was wrond voltage and


I don't want to sound mean or condescending but if you're good enough to repair what is wrong with that monitor you wouldn't be asking someone in here how to fix it. You just don't go pick up a soldering iron and start fusing parts in a monitor if you even find the parts at the local Radio Shack. If you smelled smoke and it doesn't come back on it's fried.

Dec 06, 2009 | Balance CM2019 19" LCD Monitor

1 Answer

I have a ctx moniter says undectected mode


CTX 15"1024x768 TFT LCD-Black Monitor · i have a ctx moniter says ... Answer. i have a ctx moniter and wen i plugnitin to pc tower itsays undeceted mode watdoes this mean. Close Close. ASUS Eee PC 1000H

Dec 03, 2009 | CTX 15"1024x768 TFT LCD-Black Monitor

1 Answer

Re: CTX monitor getting blurry


Hi Beth,
Your focus screen network turn faulty. It can be solved by by passing the original focus screen network to a new assembled focus screen network.

Apr 08, 2008 | CTX PL 9 19" CRT Monitor

1 Answer

Monitor flickered and then... smoke!


Hi Konsuma, You can open the monitor case and look to see what is damaged and order a new circuit board if needed. Check with www.lcdrepair.net parts and/or Repair.

Oct 09, 2007 | HP Pavilion F1703 17" LCD Monitor

Not finding what you are looking for?
CTX Multimedia Series 2900 (Black) 29 in.CRT Conventional Monitor Logo

78 people viewed this question

Ask a Question

Usually answered in minutes!

Top CTX Computer Monitors Experts

Tony

Level 3 Expert

2598 Answers

Jeremy Murray
Jeremy Murray

Level 2 Expert

127 Answers

yadayada
yadayada

Level 3 Expert

60701 Answers

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

Answer questions

Manuals & User Guides

Loading...