What would cause over current on a backlight circuit?
so the un65j6200afxza power supply….. dead set, no backlight, no standby. unplug main board…. proper voltages, no backlight. unplug backlights, proper voltages, no standby. im looking at the power supply at this point. did backlight check with direct current and they lit up, so power supply troubleshooting starts. checked live and cold for shorted diodes, transistors….all good. caps… good. focused in on backlight circuit of main board and am reading over 300v on a 220v rated output. I removed the mosfets from the board and they test good. dont have an esr meter but pulled caps and they seem to be in spec. im not finding what the issue is. is there a give away here that im missing? any help is appreciated.
Bu iyi bir soru mu?