Im a newbie so no I realize I should have started a new thread
Here is my problem
I have a Samsung PN58C550GIF / PN58C550GIFXZA PURCHASE IN Feb 2011. Set working well until I heard a pop and then no picture but sound works as do all controls
I checked the power supply by jumping the PS_on onto ground and the VS_on to +5v and all voltages check out. I checked as many of the Mosfets as possible and they seem to work. I changed the X-main, Y-main and both Y-buffer boards with no help. The LED on the control board gives an error message: on 5 secs and off 1 sec. I get a very brief flash of sparkle light pattern on the screen(off center) when first turned on then nothing. I do not notice a glow in a dark room. Finally I jumped the power supply on and left the boards hooked up and still no picture. Voltades ok
Also when I power up with the ribbon cable from the control board to y-main disconnected, it powers up and LED blinks one per second and all voltages normal. Power up with it all connections in place and get normal voltages VS and Va for a split second then rapidly down to less than 5 volts. Thanks very much in advance!! Could this be the control board
Here is my problem
I have a Samsung PN58C550GIF / PN58C550GIFXZA PURCHASE IN Feb 2011. Set working well until I heard a pop and then no picture but sound works as do all controls
I checked the power supply by jumping the PS_on onto ground and the VS_on to +5v and all voltages check out. I checked as many of the Mosfets as possible and they seem to work. I changed the X-main, Y-main and both Y-buffer boards with no help. The LED on the control board gives an error message: on 5 secs and off 1 sec. I get a very brief flash of sparkle light pattern on the screen(off center) when first turned on then nothing. I do not notice a glow in a dark room. Finally I jumped the power supply on and left the boards hooked up and still no picture. Voltades ok
Also when I power up with the ribbon cable from the control board to y-main disconnected, it powers up and LED blinks one per second and all voltages normal. Power up with it all connections in place and get normal voltages VS and Va for a split second then rapidly down to less than 5 volts. Thanks very much in advance!! Could this be the control board
Comment