My Akai 42 inch Plasma TV has a 1/2 inch vertical black bar that splits the picture in the middle of the screen. When I turn the TV on, sometimes it is there, sometimes not.It will come on and be intermintent or sometimes it will stay on all the time. Can anyone solve my problem? Can I continue to watch the TV or will the black bar burn into my screen?
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Re: Black Vertical Bar
It will burn into the screen overtime. The Akai units have a resistor on the address board that feeds the PDP that usually has a crack in the solder on one or both ends of it. There are about 4 address boards that are right below the panel itself and the suspect one is the board right below the line that is appearing. Have someone with solder skills repair it.
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If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
Line faults & possible causes to both Plasma & LCD screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD screen are similar, irrespective of its brand and screen size.
There is no invertor board on a plasma tv. The fault is the X address buffer board. This is located on the bottom of the screen and runs horizontally the whole width of the screen. If you remove the heatsink plate that covers the x address boards and you need to look at the screen ribbon at the same position as where the bar is (in the middle).Vary gently lift the Xbuffer ribbon lock and gently take out the ribbon.Clean the contacts very carefully with a fibre pen or an electrical cleaning fluid.Insert ribbon back and heatsink and check.Here is a picture of the board and ribbon
a 1 inch bar is associates with 1 ribbon fault. So if the bar was 3 inches in from the left of the screen, the faulty ribbon will be 3 inches in from the right working from behind the TV. If cleaning dont cure the fault, then the Buffer IC will be blown and order a new centre buffer board (you can buy off Ebay)
It sounds like an Intergrated Circuit (IC) has fried. Even on a good day, this is not something you can attack at home. As a tech (and as an owner of that model samsung), I'd need a map & tools to know what's going on. Your best bet in this situation is to contact Samsung and let them recommend an authorized service center in your area. Sorry I can't be of more help, but this is a rather serious problem.
Ok if your hitachi TV dies with no power anywhere try this: Some models have a kill switch under the bottom edge. It's like a gray switch like a small light switch press it back in and voila let there be LIGHT. Saves you at least a $200 trip to repair shop!!