Common Samsung TV problems include failure to turn on, failure to detect signal, power up delay and failure to display pictures and sound. Other problems include turning off rapidly, screen flickering, the presence of faded pictures and capacitor leakage.
A defective capacitor can cause failure to turn on or cause the TV to click more than once when starting. A faulty cable box or satellite can cause failure to detect signal, which causes a perceptible lag time between altering channels or searching in an image on screen. A defective capacitor on the power supply causes a Samsung TV to take a lot of time when switching on.
A faulty fuse on the wrong input channel causes failure to display pictures when the TV is switched on. The TV fails to produce sound when there is no power supply. If the TV has programming issues, it turns off for no reason. Firmware that is out of date can also cause this problem.
A worn out jumper on the power supply causes screen flickering. Problems with the LCD technology or poor TV settings can cause a Samsung TV to show deep shades of black, ringing and discolored pictures. Power voltage on the original capacitor that is too low or a capacitor that is too close to a heat sink cause the capacitor to bulge.