The screen was working fine, but i was stuppid to open him up to clean some dust ,so I removed the middle plate an also removed a power cable for a half oure wich was conected in the inside of the screen. i removed some dust on one place an conected back the cable just how i removed it, an dan i put the backpanel back on the screen an turn him on,but the tv wont show me his menu no more an jump in his collor.
3 times green,than 1 time yellow,an if i pus the remote butten he some times jumps in standby,but the collor light red is not blinking of an on like the green collor, can u help me or some one, yesterday the tv man came an tooke a look,he said he cant do nothing without a component scheme/manual( the book with all the diodes en small component on it. pplease help me or do you know wer i can find it.
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It sounds like its back-light inverter board has damaged. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
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)