Samsung lcd LN32B360C5DXZA has green haze on screen

A 5" wide dark band in the middle of a Samsung Smart Series 7 TV screen could be caused by several issues. Here are a few potential causes and solutions:

1. Faulty LCD Panel: If the LCD panel is damaged, it may cause a dark band in the middle of the screen. Unfortunately, a damaged LCD panel usually requires a professional repair or replacement, which can be expensive.
2. Loose or Damaged Connection: A loose or damaged connection between the TV's internal components could cause a dark band on the screen. Check all of the cables and connections between the TV and any external devices to ensure they are properly connected and undamaged.
3. Picture Settings: The dark band could be caused by the TV's picture settings. Try adjusting the picture settings to see if it improves the image. For example, you could try adjusting the brightness, contrast, or sharpness.
4. Software Update: A software issue could cause a dark band on the screen. Check if there is a software update available for your TV and install it if necessary.
5. Magnetic Interference: If there is a strong magnetic field near the TV, it could cause a dark band on the screen. Try moving any magnets or magnetic devices away from the TV to see if it improves the image.

If none of these solutions work, it may be best to contact a professional TV repair technician who can diagnose and fix the issue. They can ensure that the repair is done correctly and safely, and can help prevent further damage to the TV.

Sounds like a backlight problem to me. If you input a signal to the HDMI or Composite input and then it goes black have you tried taking a flashlight to the screen to see if the picture is still there but just dark? That would indicate a backlight issue. That model appears to be an LED edge lit backlight, so if the picture is still there after going black your going to have to trace out the backlight circuit and see whats going on. Usually with LED backlighting if it comes on at all then the LED's are good, its just the driver supply thats failing to keep them on. Some TV's have a small separate board that provides the backlight control, but i suspect with this model its on the power supply board and not the motherboard. Have you checked that board? It could be bad caps on the power supply board, check the voltages to the backlighting when it lights up and then when it goes dark. It could just be some failed capacitors on the power supply causing that voltage rail to drop off.

Samsung LCD TV with no video and high pitched sound - Digital TV ...

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Jan 7, 2010 - 26 posts - ‎15 authors
Hi, I have a Samsung LN40A550 LCD TV which I have had for just over a year. ... I was watching TV yesterday and all of a sudden the picture went all. ... started makinga very high pitched buzzing sound with no picuture coming on. We did have a bunch of green vertical lines, but now just a black screen.

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Hi,

See this link for the manual - looks like the hookup diagram is on page 6:

http://www.manualslib.com/products/Samsung-Ln32b360c5dxza-2824887.html

Check the site linked below, and see the screen shots of defective LCD TVs, Surf it with patience. This should be a panel fault I assumes. http://electronicshelponline.blogspot.com/

Rather hard to properly diagnose this one off such a short description, but...

1/ Bulb OK, not over hours or otherwise damaged?
2/ Is it constant for all images, just a general coloured haze, not a strange "shadow", "ghost" or "fringe" that alters depending on what you display?
3/ Lens nice and clean?
4/ Surface you're projecting it onto also clean and at least nominally white?
5/ Input cables all fine at both ends and work correctly with other output devices (TV and/or computer monitor)?
6/ Haze still in place with different cables and input devices?
7/ Does the projector regularly show the same static image for extended periods?

The VT460s were buggers for suffering from internal LCD and filter glass issues if allowed to overheat, and with image burn-in, especially if fitted with unusual lenses (e.g. extreme short-throw); I've had to do internal cut-and-swap surgery on a few of them before, with donor image elements from projectors that died due to other problems. I can't say the one VT470 has shown any sign of similar, but the two VT480s are worse if anything. So it's entirely possible that we just got the one good VT470 out of the whole production run. As intimated by the above, it could be anything out of a failing bulb, dirty lens (or internal image element) glass, image burn-in, LCD/filter damage from overheating (and mind that being turned on showing a "blank" screen for ages can cause a similar effect, as all of the bulb's 200 watts of light energy is then being completely absorbed by three thumbnail-sized pieces of liquid crystal... the bulb doesn't turn off unless the projector is shut down completely!), problems with internal circuitry, dodgy cables, unsuitable projection surfaces, or problems with the devices feeding images to it. It really is a minefield until it can be narrowed down.

hi, usually you can correct this issue with only a few system checks, dark streaks can be caused by damaged pixels on the screen, in which case you need to replace the TV.

Inspect where the dark streaks are on the television. If the streaks occur at the same place on the top and bottom of the screen, they are due to the formatting of a movie or television show you are watching. This is normal. Also, if the streaks appear on the left and right of the screen, they are due to the show being filmed in full-screen instead of wide-screen. This also is normal.

Change the input setting so you are viewing the contents of a different device. If the dark streaks are gone, you know they are due to the device connected to it. However, if the dark streaks remains no matter what input the TV is connected to, the problem lies with the television.

Inspect the cable connection. Oftentimes when connecting a computer to an LCD TV, you can have strange dark streaks across the screen. Use a DVI-to-HDMI cable connection when plugging in your computer, then press the "Menu" button on your TV remote, select "Picture" and chose "Square Pixel." See whether the image adjusts and the dark streak goes away.

Contact the manufacturer of your LCD television if the dark streak remains. This streak can be caused by a defect in the television; if the TV is still under warranty, you can have it replaced.

It is usally the component board in the back. It is giving out 5 volts less than it should.

I had the same problem with my Samsung and I called them and the guy came out and opened the back on the tv and just simply swapped some a circuit board over .

The haze will also spread as it did on mine the longer you wait .

It is a very simple fix. Replace the LVDS cable will fix it. This cable connect the mainboard to the panel.

sorry silly girl seen this a hundred times!! The crt socket on the set needs to be carefully taken off and cleaned with wd-40 or tuner wash. its an intermittant connection on the screen contacts and the contacts that bias the grids.. It can be a green haze a blue haze or a red haze. Very common on 3 to 5 year old samsung tvs. Good Luck