Hi i have a Samsung Hitron black TV and i have a problem turning it on.When i switch the power button on my, TV doesn't turns on immediately.I have to wait up to 40-50 minutes until it turns on. Thanks.
Seems like you are having some problems in the power section of the tv. they are either one capacitor gone bad or some of them gone bad. do you know how to check capacitor? if not just take it to a repair man. good luck
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Check the screen voltage. Adjust it to a little lower and check. Check the supply voltage to its video output stage [CRT base card]. If this voltage is less than normal, this kind of fault can occur. Check the smoothing capacitor [the electrolytic capacitor of low capacitance value] is bad. If it is bad, the voltage stated above will go low,and the retrace lines will be visible. Check these.
The fault you now see is technically called vertical retrace lines with picture. The above said are the main causes for this.
If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. http://electronicshelponline.blogspot.com/ Pull up older posts.
This denotes a power supply problem. The trouble could be in the low voltage or the high voltage supply. You will need a schematic and at least a multimeter to even beging to troubleshoot this problem. If you do not have a background in electronics. I would suggest taking the set to a TV repair shop.