Hitachi SH-G1000 - Manual (Page 105)

Section 2: Understanding Your Device
97 2D: Controlling Your Device’s Settings
Selecting Backlight Settings
To customize the backlight brightness and automatic turn-off for power
saving purposes:
1. Tap , then Settings . On the System tab, tap Backlight .
2. Select backlight settings.
3. Tap ok . The System tab screen is restored.