Hi there!
I have a Samsung UE32F4000 with a power supply model bn44-604F (L32SoE_DHS) and according to the owner, it gradually took longer and longer to turn on, until now that it won't turn on at all.
Behaviour: Plug it in mains, led turns on. Push power button either on remote or physical pushbutton, led blinks once like trying to turn on, but after 2 seconds turns steady on again.
Inside: I measured PS voltages. A5V measures 5.1v (expectable as I get LED on and remote signals have an effect) and when I try to turn on, I get B5V at 5.2v but B13V goes directly to 9v, quickly to 8v and then drops to 0 in under 1second
I can't find the proper schematic for this PS but I tried swapping caps CM861 and CM855 (2 on top left corner in front side picture) and on first attempt I got BL to turn on for under 1 second but that was it, same behaviour again.
I tried resoldering all the secondary leads of main transformer too.
Any hint on to try next?
Thanks
I have a Samsung UE32F4000 with a power supply model bn44-604F (L32SoE_DHS) and according to the owner, it gradually took longer and longer to turn on, until now that it won't turn on at all.
Behaviour: Plug it in mains, led turns on. Push power button either on remote or physical pushbutton, led blinks once like trying to turn on, but after 2 seconds turns steady on again.
Inside: I measured PS voltages. A5V measures 5.1v (expectable as I get LED on and remote signals have an effect) and when I try to turn on, I get B5V at 5.2v but B13V goes directly to 9v, quickly to 8v and then drops to 0 in under 1second
I can't find the proper schematic for this PS but I tried swapping caps CM861 and CM855 (2 on top left corner in front side picture) and on first attempt I got BL to turn on for under 1 second but that was it, same behaviour again.
I tried resoldering all the secondary leads of main transformer too.
Any hint on to try next?
Thanks
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