Yamaha YSP 900 Owner's Manual - Page 86

TROUBLESHOOTING TROUBLESHOOTING Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the instruction below does not help, set this unit to the standby mode, disconnect the power supply cable and contact the nearest authorized YAMAHA dealer or service center. ■ General Problem Cause Remedy This unit fails to turn on when STANDBY/ON is pressed, or enters the standby mode soon after the power has been turned on. The power supply cable is not firmly connected to the AC wall outlet. This unit has been exposed to a strong external electric shock (such as lightning and strong static electricity). Connect the power supply cable firmly to the AC wall outlet. Set this unit to the standby mode, disconnect the power supply cable, plug it back in after 30 seconds, then use it normally. This unit suddenly enters the standby mode. The internal temperature becomes too Wait about 1 hour for this unit to cool high and the overheat protection circuitry down and then turn it back on. has been activated. The sleep timer has turned the unit off. Turn on the power, and play the source again. No sound. Incorrect input or output cable connections. Connect the cables properly. If the problem persists, the cables may be defective. No appropriate input source has been selected. Select an appropriate input source with INPUT or the input selector buttons. The volume is turned down. Turn up the volume. The sound is muted. Press MUTE or VOLUME +/- on the remote control to resume audio output and then adjust the volume level. Signals this unit cannot reproduce (such as PCM signals with more than 96 kHz of sampling frequency) are being received from source component. Play a source whose signals can be reproduced by this unit. Change the system settings of the source component. The sound suddenly goes off. The sleep timer has turned the unit off. Turn on the power, and play the source again. The sound is muted. Press MUTE or VOLUME +/- on the remote control to resume audio output and then adjust the volume level. No sound from the effect channels. You are playing back the source or program in the stereo mode or my beam mode. Press one of the beam mode buttons on the remote control to select a multichannel playback mode and then try to play back the source or program once more. No sound from the center channel. The output level of the center channel is Raise the level of the center channel. set to minimum. No sound from the surround channels. The output level of the surround channels is set to minimum. Raise the output level of the surround channels. No sound from the subwoofer. BASS OUT in SUBWOOFER SET is set Select SWFR. to FRONT. The source does not contain low bass signals. See page 21 - - - 14 37 39 39 - - - 39 40 68 68 63 82 En