JRC JMA-5206 Instruction Manual page 251

Exit 1 Press the [STBY] key.
The equipment will enter the standby state.
2 Press [2] key while the ATA Test Menu is open.
The ATA Simulator screen will appear.
3 Press [1] key to select OFF.
The ATA Simulator is turned off.
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5.2 ATA OPERATION
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