Roland Boutique JX-08 Synthesizer Module - Manual (Page 45)

Configuring the Settings of This Unit
45
Prioritizing the Battery (Battery Fixed Operation Mode)
This mode lets you operate the JX-08 on battery power, even when connected to another device via USB.
In this mode, this unit does not use (or switch to) USB bus power, even when you connect the unit to another USB port. This lets
you use this unit on battery power while the USB port is connected to a device that can’t supply it with power.
1. While holding down the [PAGE/TIE] button, turn the power on.
This makes this unit operate on batteries.
If you handle batteries improperly, you risk explosion and fluid leakage. Make sure that you carefully observe all of the items
related to batteries that are listed in the leaflet “USING THE UNIT SAFELY.”