Hi.
I'm working on a Sony KDL-49WE663 and when I first turned it on it was blinking red 6 times.
I opened the TV and saw an inductor was fallen off the power/LED driver board so I soldered it back on and tested again, TV turns on and seems fine but the inductor heats up really fast and fell off again.
Then tested the backlight LEDs they all seem fine with LED backlight tester, every LED lights up. I even measured current draw to all individual LED which was around 27 mA.
Haven't found any shorts after hours of testing.
Inductor is about 4.5 Ohms.
Wondering if someone has experience with these TVs? Any pointers where to look?
Attached the picture of the powerboard and diagram from datasheet of driver IC since I cannot find schematic for this TV. The inductor is marked with red.
I'm working on a Sony KDL-49WE663 and when I first turned it on it was blinking red 6 times.
I opened the TV and saw an inductor was fallen off the power/LED driver board so I soldered it back on and tested again, TV turns on and seems fine but the inductor heats up really fast and fell off again.
Then tested the backlight LEDs they all seem fine with LED backlight tester, every LED lights up. I even measured current draw to all individual LED which was around 27 mA.
Haven't found any shorts after hours of testing.
Inductor is about 4.5 Ohms.
Wondering if someone has experience with these TVs? Any pointers where to look?
Attached the picture of the powerboard and diagram from datasheet of driver IC since I cannot find schematic for this TV. The inductor is marked with red.
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