1. Turn on the power to the RD-700SX.
2. After the unit starts up, press [CURSOR →] + [ZONE SELECT LOWER] +
[EDIT].
This puts the RD-700SX in Test mode.
Upon entering Test mode, the version screen appears.
Turn the power off and then on again to return to normal operating
mode.
I have the full pdf on backing saving data - e-mail me if you want it