Sony mvc-cd250 Operating Instructions Manual page 26

This is useful for extending the battery life
and for shooting under conditions where the
image is difficult to check using the LCD
screen.
Each time you press DISPL&YILCD
BACK LIGHT ON/OF'F, the display
changes in the following order.
-a For a detailed description of the indicators, see
page 124.
@ Indicators on the LCD screen are not recorded.