Yamaha 140 Owner's Manual - Page 34

Troubleshooting Troubleshooting Problem This instrument does not turn on. Noise from the speakers or headphones is audible. The overall volume is low, or no sound is heard. The damper pedal has no effect. Possible Cause and Solution This instrument has not been plugged in properly. (YDP-160) Securely insert the female plug into the socket on this instrument, and the male plug into a proper AC outlet (page 13). (YDP-140) Securely insert the adaptor plug into the socket on this instrument, and the adaptor plug into a proper AC outlet (page 13). The noise may be due to interference caused by the use of a mobile phone in close proximity to this instrument. Turn off the mobile phone, or move it further away from this instrument. • The Master Volume is set too low. Set it to an appropriate level using the [MASTER VOLUME] control. • Make sure a pair of headphones is not connected to the headphones jack. • Make sure that Local Control (page 30) is ON. The pedal cord may not be properly connected. Make sure to securely insert the pedal cord into the [PEDAL] jack (page 37). Options BC-100 Bench A comfortable bench styled to match your Yamaha digital piano. UX16 USB-MIDI interface HPE-150 Headphones 32 34 YDP-160/140 Owner's Manual