1) Power on the unit (with connecting VIDEO cable with monitor).
2) Push “SOUND” button & “MODE” button on the main unit, simultaneously.
3) Then, hold for 4 sec. With pressing “Power ON”
4) Check, showing SERVICE MENU on the monitor.
5) From RDX-E700 remote, you will enter as follows:
PLAY -> 274 -> Subtitle key -> 0 -> Play
6)POWER OFF
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