Yamaha YAS-70BL Owners Manual - Page 30

ADDITIONAL INFORMATION Additional information Troubleshooting If there is any problem with this system, check the following items. If you cannot solve your problem with the following remedies or if your problem was not listed below, turn off and unplug this system, and then consult the nearest authorized Yamaha dealer or service center. Problem Cause Solution Power turns on but immediately shuts off. The speakers make no sound. Sound is too low on one side. Speaker channels other than the front ones make no sound. The center speaker channel makes no sound. The surround speaker channels make no sound. The subwoofer makes no sound. Sound is poor (noisy). This system does not operate properly. A digital or highfrequency equipment produces noises. The power cable may be connected improperly. The speaker cable may be shorted. This system may receive a strong electrical shock such as from a lightening bolt or excessive static electricity. The volume may be set to minimum level. The mute function may be activated. The input source or input setting may be incorrect. The cables may be connected improperly. The cables may be connected improperly. Make sure the power cable is plugged into the outlet firmly. Make sure all speaker cables are connected properly. Set this system to the standby mode, and then disconnect the power cable. Wait for about 30 seconds, connect the power cable, and then turn on this system. Adjust the volume level. Cancel the mute function. Select the correct input source or input setting. Make sure all cables are connected properly. Make sure all cables are connected properly. You may be listening to stereo sounds without the sound field effect. Press sound field program button to enable the sound field effect. The volume of the center speaker channel may be set to minimum level. Adjust the volume level of the center speaker channel using test tones. The volume of the surround speaker channels may be set to minimum level. Increase the output level of SL/SR by pressing S. Increase the output level of the virtual surround speaker channel by pressing SUR. +. The volume of the subwoofer channel may be set to minimum level. Adjust the volume level of the subwoofer. You may be listening to an audio source The subwoofer does not support signals outside that does not contain any low tone signal. the specified range. The speaker cable may be shorted. Make sure all cables are connected properly. This system may receive a strong electrical shock, such as from a lightening bolt or excessive static electricity, or drop in power supply. Set this system to the standby mode, and then disconnect the power cable. Wait for about 30 seconds, connect the power cable, and then turn on this system. The system control cable may be connected improperly. Connect the system cable firmly. This system may be placed close to the digital equipment or high-frequency equipment. Place this system further away from such equipment. See page 12 9 13 13 13 13 9, 12 9, 12 14 23 23 25 25 23 9, 12 13 9 - 26 En