Owner's Manual
Page 193
...[L/L+R]/[R] jacks using appropriate audio cables. Connect the output jacks (LINE OUT etc.) of all volume levels to minimum (0). PSR-S900/S700 Owner's Manual 193 Using Your Instrument with a monaural device. Also, before turning any components on the underside jacks panel of the... damage both pieces of powered speakers using appropriate audio cables. If you turn on the power to the external device, then to amplify the instrument's sound. Instrument Powered speakers Phone plug (standard) Audio cable Input jack Phone plug (standard) Playing External Audio Devices ...
...[L/L+R]/[R] jacks using appropriate audio cables. Connect the output jacks (LINE OUT etc.) of all volume levels to minimum (0). PSR-S900/S700 Owner's Manual 193 Using Your Instrument with a monaural device. Also, before turning any components on the underside jacks panel of the... damage both pieces of powered speakers using appropriate audio cables. If you turn on the power to the external device, then to amplify the instrument's sound. Instrument Powered speakers Phone plug (standard) Audio cable Input jack Phone plug (standard) Playing External Audio Devices ...