Adjust Volume; Key Lock Function; Press Play - Macvision MA823T Operation Manual

Adjust volume

Decrease volume by pressing VOL-; increase volume by pressing VOL+.

Key lock function

Dial HOLD switch to the position of lock.
When Hold is ON, any operations on buttons will be displayed as:
When Hold is ON, USB mode will be displayed as:

Press PLAY

Play or stop (or pause while recording); exit from submenu.
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