PC Engine GT Instruction Manual

The screen brightness is adjusted using the old contrast dial.

A menu can be accessed by holding down the I + II + SELECT buttons. To navigate, press SELECT. To change the values, press I and II.

Menu options:
- Brightness: Brightness level. Leave on VR if you want to adjust the brightness using the contrast dial
- Color mode: Color filters
- Pixel Effect: Display modes (scanlines, pixel grid, etc.)
- Color gain: Saturation adjustment
- Factory Reset: Resets the menu options