I bought my Toshiba 32a42 about 3 years ago and have no problems up untell about a month ago I"ve noticed that the picture is really dark I tried reseting the color,brightness,contrast,tent I tried adjusting everything that I know of.This really bugging me.Most of the time I don't even want to watch tv it seems mostly like the contrast wont go bright enough
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Re: dark picture (HELP)
Open up the back of the set but be very carefull. Notice a large black block with a large red wire that runs up to the picture tube. on one side of that large block where the thick red wire is comming out of are two controls, one should be marked focus or F and one should be marked screen or S. With the set operating normally and not touching anything else, slowly turn the control marked screen or S clockwish till the picture gets bright enough. If you go too bright the set will shut down or you see small thin white lines so back down on the control. then touch up the focus and your good to go. good Luck.
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for this brightness problem actually came out from flyback transformer...so, before you spend and waste your money, try to adjust at back of your tv first. But if you aren't an expert, better ask technician to do because that transformer supply a very high voltage....there's two adjustment point at flyback transformer, one point for focus and the other one for brightness! try first...
this problem is due to
1 not proper voltage on crt terminals
2 check video output supply voltage
3 check luminance section of chroma ic
4 if tv is very very old than there is a possibility of crt getting weak