Zoom F8n Pro 8-Input / 10-Track Multitrack Field Recorder - Manual (Page 256)

Setting the FRC-8 LED brightness (LED Brightness)
You can adjust the brightness of the LEDs on the FRC-8.
1.
Press .
This opens the Menu Screen.
2.
Use to select “USB”, and press .
3.
Use to select “FRC-8”, and press .
4.
Use to select “LED Brightness”, and press .
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