Yamaha AVX-S80 Owner's Manual - Page 48
Problem, Cause, Remedy, Refer, to Select SWFR or BOTH.
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TROUBLESHOOTING Problem No sound from the center speaker. No sound from the rear speakers. No sound from the subwoofer. Poor bass reproduction. A "humming" sound can be heard. The volume level cannot be increased, or the sound is distorted. The sound effect cannot be recorded. This system does not operate properly. There is noise interference from digital or highfrequency equipment, or this system. Cause The output level of the center speaker is set to minimum. "1A CENTER" on the SET MENU is set to NON. One of the Hi-Fi DSP programs (1 to 4) has been selected (except for 5ch Stereo). The source encoded with a Dolby Digital or DTS signal does not have a center channel signal. The output level of the rear speakers is set to minimum. A monaural source is being played with program 9. "1D BASS" on the SET MENU is set to FRONT when a Dolby Digital or DTS signal is being played. "1D BASS" on the SET MENU is set to SWFR or FRONT when a 2-channel source is being played. The source does not contain low bass signals (90 Hz and below). The speaker mode settings (front, center, or rear) on the SET MENU do not match your speaker configuration. Incorrect cable connections to the analog audio jacks. The component connected to the output (VCR OUT) jacks of this system is turned off. It is not possible to record the sound effect by a recording component. The internal microcomputer has been frozen by an external electric shock (such as lightning or excessive static electricity) or by a power supply with low voltage. This system is too close to the digital or highfrequency equipment. Remedy Raise the level of the center speaker. Select the appropriate mode for your center speaker. Select another DSP program. Raise the output level of the rear speakers. Select another DSP program. Select SWFR or BOTH. Select BOTH. Select the appropriate position for each speaker based on the size of the speakers in your configuration. Firmly connect the audio plugs to the analog audio jacks. If the problem persists, the cables may be defective. Turn on the power to the component. Disconnect the AC power cord from the outlet and then plug it in again after about 30 seconds. Move this system further away from such equipment. Refer to page 40 36 21 - 22 - 40 21 - 22 37 37 - 36 - 37 12 - 13 - - - - 44