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How do i fix my tv that has so many lines going through the screen that i can't even watch it. sometimes it turns off and on all by itself. samsung is not interested since it is 5 years old. cost $2,0

Have taken off the back of the tv. all capacitors look good. could it be the mother board? any help would be appreciated, thanks, steve.

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  • Televison & ... Master
  • 74,251 Answers

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.

Posted on Nov 11, 2014

Testimonial: "to The Knight: thanks for the info. have been surfing the bloodspot site. huge amount of info. no luck yet, but still at it. thanks again, will keep you posted, steve."

  • The Knight
    The Knight Nov 14, 2014

    Ok Steve; Just type in "line fault to LCD TVs" at its search box, at the top right of the display window. Might help you to locate the related page easier; I assume.

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SOURCE: ESA EDTV - 42 inch plasma TV, sound OK no picture.. has vertical lines.

pull plug. allow to reset. try again.
good luck on that, otherwise you need service.
good luck
mark

Posted on Dec 28, 2007

ser71
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SOURCE: Monitor goes black - green light stays on

My screen is black, why do I not have a picture?
Answer Antenna is not hooked up to television.

  • Make sure that the antenna cable is correctly connected to the television. If it doesn't work there appears to be no signal.
Problem is caused by television broadcast
  1. Push 'INFO' button.
  2. If the screen shows channel number (1, 2, 3, etc) try another channel. Not all channels broadcast at all times.
  3. You may have a signal problem. Contact cable provider or local broadcaster regarding the specific channel.
Television is in EXT or SIDE mode, and there is no external source provided, so screen mute (black screen) is activated.
  1. Push NEXT SOURCE button on the remote.
  2. On the screen appears all sorces.
  3. Press the UP button to switch to the TV mode.
If you are using an accessory device (DVD, DVR, or VCR), be sure the device is on and running.
Blank screen when connecting to the accessory (DVD, STB, PC) device via HDMI to HDMI.

Answer
  • Make sure the cable is well connected .
  • To check which connection is selected, Press the i+ button on the remote control.
  1. When you see Blue mute / blank screen and the i+ display does not indicate any video resolution indication then there is no valid signal detected.
    • Make sure the HDMI output of the accessory is valid by changing the video output resolution to a resolution which the TV can handle.
  2. When you see a blank screen and the i+ display shows a video resolution indication then the connection is correct.
    • The blank screen is caused by the accessory device and not by the TV.
    • To detect and remedy the problem caused by the accessory device, check the instruction manual of this device.
  3. If the problem remains : reselect the HDMI external source input by changing to the other HDMI input and back to the connected HDMI :
    1. Press AV on the remote
    2. Press up and then ok
    3. Press AV again
    4. Press down and ok
    5. The compatibility check process between TV and accessory device will start over again.
  4. Reset (switch off and back on) the TV and also reset the accessory device.

Posted on Mar 05, 2008

  • 1 Answer

SOURCE: Samsung LN32A330 turns itself off after 5-10 minutes of being on.

its usually the 2200 microfarad cap on the power board that stops working. its really easy to replace and its only a 5 dollar repair part. use a 2200 mF cap rated around 25 volts instead of the usual 10 volts. samsung is famous for bad caps. if the cap feels buldged than this is the problem

Posted on Mar 30, 2010

  • 117 Answers

SOURCE: tv turns on and off by itself

check batteries on the remote/or hide remote and see if it stops/if not bigger problem

Posted on Apr 20, 2010

  • 1 Answer

SOURCE: Samsung 4254 Plasma keeps shutting

take the back off the tv follow the power cord it will connect to an electrical board. Look at the board carefully you will find a few capacitors look at the top of the caps they should all appear flat if you see any that are bulged or expanded then more then likely that is your problem. I just had the exact same problem with my 50 inch plasma and I fixed it. I removed the back of the tv located two swollen caps unsolder them from the board tested them with a meter and confirmed that the larger 50volt 1500 uf 105deg was indeed burnt and the smaller swollen one 35v 1500uf was still good but changed it anyhow just because it looked like it didnt have much life left.

Posted on Apr 06, 2011

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