iPod nano 6th the value of the coil for the backlight

Hi,

my ipod nano dived in a cup of tea. It was working properly for some seconds after the dive but after that the backlight went off permanently, everything else functions apart that it is very difficult to distinguish what is on screen due to lack of backlight. I disassembled it and I found corrosion on the coil at the lower left corner of the logic board. Could someone tell me how many μΗ is that coil so I can repair it?