Question about Samsung 21" FLAT CRT COLOR MONITOR

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No picture when pc is turned on monitor flickers on and off then it stays on but thers vertical lines all over the screen

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  • Anonymous Dec 17, 2008

    when monitor is on the picture is jumping up and down also image on screen is half inch from top of screen.

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  • 55 Answers

Hello,
this problem accure due to vertical o/p ic is failiur so plz checked it from any hardware engineer or if you changed it. you are welcome. i't mostly 9 pin ic on heat sink. it's mostly located at the horizantal _ vertical coil's wire( 4 wire attached with pcb) are placed.
ok
bye

Posted on Nov 13, 2008

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Posted on Jan 02, 2017

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You may have a defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
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This could be a faulty CCFL lamp.
To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
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The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out
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1 Answer

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Connect an external monitor to your laptop, if you get a clear image on this monitor the the video card in the laptop is OK.

The fault could be a defective inverter that supplies high voltage to the CCFL lamp or a faulty CCFL lamp. Most likely a faulty CCFL lamp.

Defective CCFL backlight may has the following symptom:
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  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) as reached the end of the life and all you need to do is replacing the CCFL lamp

The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

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