Hi guys
This TV backlight flashes constantly from the time it is plugged in. Unplugging the Mother board causes no change. I thought it was bad leds so I opened the panel and attached an LED tester and all the leds lit up which led me to conclude it was a bad power supply. I replaced it but the problem still remains.What I have noticed is the standby and the voltage across the mains filter caps are fluctuating and very low, eg standby 4 - 6 V and mains 150 - 160V . With the back light disconnected standby is 13V on and mains 390V. What am I missing here? I did a video when I was testing the backlight. I would have to post a link .
This TV backlight flashes constantly from the time it is plugged in. Unplugging the Mother board causes no change. I thought it was bad leds so I opened the panel and attached an LED tester and all the leds lit up which led me to conclude it was a bad power supply. I replaced it but the problem still remains.What I have noticed is the standby and the voltage across the mains filter caps are fluctuating and very low, eg standby 4 - 6 V and mains 150 - 160V . With the back light disconnected standby is 13V on and mains 390V. What am I missing here? I did a video when I was testing the backlight. I would have to post a link .
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