Horizontal lines on my monitor

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Normally, horizontal lines on an LCD or LED monitor indicate a bad control board inside the monitor. However, occasionally the problem can be caused by loose or bad cable connections. The only things that you can really do is to disconnect both ends of the monitor cable and reconnect them firmly. Also, you can disconnect the monitor cable completely and just leave the power cable. With only the power cable attached, you can turn the monitor on and off. The monitor should have a "startup screen" or display a message that says something like "Video Cable Disconnected". If the green and pink lines are still present without your computer connected, then the monitor has gone bad. The good news is that Samsung SyncMaster monitors usually carry a 3 year warranty, whereas most monitors only have a 1 year warranty. You may be able to have the monitor replaced at no cost to you if it's less than 3 years old.

Welcome to fixYa!

When you see lines like these across your LCD, it indicates a problem with your monitor's electrolytic capacitors.A faulty filter capacitor in the power supply board (SMPS board) can cause horizontal lines across your monitor screen.Horizontal screen lines are one of the most visible problems I see in LCD monitors & TV's that are 3-7 years old. It can happen as much from heat, humidity & less-than-ideal operating conditions, as it can from fluctuating current supply or manufacturing defects.

The way to repair horizontal screen lines is by removing the capacitors from the printed circuit board (PCB) and testing them with a LCR meter.

If it shows zero, there's your confirmation that the specific capacitor needs to be replaced.

now if you can replace them your welcome but i wont suggest that , cause you may break it more....!

any ways do comment if it helped you in any manner!

you can try contacting Lumaco they are a British monitor repair specialist.
www.lumaco.co.uk

It might even be cheaper to buy a new one.

this is real old right
no photo off i messing up, how can we guess, what you see?
amazing....
my guess power pack shot.
i guess you cant barrow a monitor and try that?
2nd guess blind, the back light failing
or is damage if it was hit, the LCD will have damage
gently flex the frame goes nuts, bingo.

Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!

I have a similar problem with our projector. It help to reverse the output for some reason. When reversed, all horizontal banding disappears.

Which type of video connector are you using? VGA or DVI?

If you are using VGA, the horizontal line could be due to interference, like from an electric motor (fan) near the video cable.

Other thing to try is to change the refresh rate. In Windows XP: Control panel --> Display Properties --> Settings tab --> Advanced button --> Monitor tab --> Screen refresh rate. The default ot 60Hz for LCD monitors. Bump it up to 75Hz. That could give a clue to the problem or maybe even fix it.

sometimes I encounter vertical lines below..... when i tap the sides it clears for a time being  but after a few moment again appears

I had the same problem. I fixed it completely today. The horizontal lines disappeared. IT IS DEFINETLY THE DEVICE DRIVER. I confirmed my monitor model tyope (dell M783s) and downloaded the specific driver for this monitor.

I had to do these exact steps or did not work.
1) with the problem screen, disabled the display adapter under the Hardware/Device Manager settings.
2) Restart the PC
3) Boot will come up with brown lines still but the screen will low resolution of 600x800.
4) Then I installed the correct device display monitor driver onto the pc. ( you may need to scan for new hardware, then choose the directory with the new hard drive.)

If you need step by step... just reply back.