Yamaha YAS-71BL Owner's Manual - Page 38
ADDITIONAL INFORMATION, Troubleshooting
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ADDITIONAL INFORMATION ADDITIONAL INFORMATION Troubleshooting If there is any problem with the system, check the following items. If you cannot solve a problem with the following remedies, or if the problem is not listed below, turn off and unplug the system, and then consult your 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. A speaker cable may be shorted. This system may have received 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. You may be listening to stereo sounds without surround mode. The volume of the center virtual speaker channel may be set to minimum level. The volume of the surround virtual speaker channels may be set to minimum level. The volume of the subwoofer channel may be set to minimum level. A speaker cable may be shorted. This system may receive a strong electrical shock, such as from a lightening bolt or excessive static electricity, or drop in power supply. The system control cable may be connected improperly. The system may be placed close to digital equipment or high-frequency equipment. Make sure the power cable is plugged into the outlet firmly. Make sure all speaker cables are connected properly. Set this system to standby mode, and then disconnect the power cable. Wait for about 30 seconds, connect the power cable, and then turn the system on again. 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. Press a surround mode button to enable the sound field effect. Adjust the volume level of the center virtual speaker channel. Adjust the volume level of the surround virtual speaker channels. Adjust the volume level of the subwoofer. Make sure all cables are connected properly. Set this system to standby mode, and then disconnect the power cable. Wait for about 30 seconds, connect the power cable, and then turn on this system. Connect the system cable firmly. Place this system farther away from such equipment. See page 15 11 16 16, 32 16 16 11 11 18 32 32 32 11 16 11 - 34 En