Working on a 2009 Samsung 55" ln52a550. The Power supply has the output voltages listed on the pins heading to the mainboard. I have 3 pins that are labeled 13V but only showing 12.38V on the meter. I have two other pins labeled 13V and they are reading 12.9V. All the 5V pins read above 5V at 5.13V or 5.17V
My question, is 12.38V close enough to 13V for proper function?
Will bad caps cause a voltage drop like this? They look fine but I will need to pull them to test accurately.
The TV turns on but I have vertical lines of all sizes and colors in the center of the screen and solid colors on the right and left sides. Nothing moves or changes. The screen does not react to the remote but I am able to turn on and off the tv with it. The start-up and shutdown music plays. That's about it.
Thanks for reading,
My question, is 12.38V close enough to 13V for proper function?
Will bad caps cause a voltage drop like this? They look fine but I will need to pull them to test accurately.
The TV turns on but I have vertical lines of all sizes and colors in the center of the screen and solid colors on the right and left sides. Nothing moves or changes. The screen does not react to the remote but I am able to turn on and off the tv with it. The start-up and shutdown music plays. That's about it.
Thanks for reading,