Samsung GX-20 Service Manual page 294

. ADJUSTMENT
✁
S elect the type of EV tester and adjust the LV values (light value, reference exposure value) in the
following order 6, 7, 12 and 15 by clicking on the "AGC Adjust" button.
If the adjustments are completed, click on the "Close" button.
118 - This Document can not be used without Samsung's authorization -