Samsung LN52A550P3FX2A, blinking red light in front. No backlight.

[Bertron]

Re: Samsung LN52A550P3FX2A, blinking red light in front. No backlight.

and just for the sake of completeness this is what I see when I plug it in. Its a crapshoot between a normal image, a solid aquamarine, and a nasty glitched out screen before it shuts off and turns back on again. Its a big improvement over not turning on at all before. I already changed all of the power board caps and double checked that the new ones arent bulging.

I really want to avoid removing and replacing anything on the brand new board, but it looks like thats the only option I have left.

[Bertron]

Re: Samsung LN52A550P3FX2A, blinking red light in front. No backlight.

so I replaced C102 on the new board, and it worked! I had almost given up on this thing!

thanks everyone for your help!

in case anyone googles this in the future, I replaced the SMD C102 with a 47uF tantalum capacitor. I am not sure why even after replacing C102 on the old main board it still wouldn't fire up. Perhaps the EEPROM was bad on the old board, but good on the new one. If a klutz like me can do this with a 52 inch, anyone can

[budm]

Re: Samsung LN52A550P3FX2A, blinking red light in front. No backlight.

https://www.badcaps.net/forum/showth...ht=c102&page=7
https://www.badcaps.net/forum/showth...msung+LN52A%2A
https://www.badcaps.net/forum/showth...911#post616911

[dick_barton]

Re: Samsung LN52A550P3FX2A, blinking red light in front. No backlight.

Glad you got there in the end. Well done.