uwu71 SAMSUNG UN55MU9000F UN65MU9000F UN75MU9000, UWU71 1.0.0

For BACKLIGHT DIMMING PROBLEMS:

Go to •    Menu £ Picture £ Backlight and vary level (0 – 20)

If no backlight changes observed:

•    Panel Connector minus (-) pin voltages and P-DIM voltages  9 55" : CNL801  65" : CNL801  75" : CNL801 while changing backlight level.

If minus Panel voltages don’t change, and P-DIM changes, replace •    SMPS.

 If  P-DIM doesn’t change replace •    Main/T-CON Board.

MUTE  4   1  9  EXIT to test Panel Backlight Sections