Yamaha A-S301 Owners Manual - Page 16

TROUBLESHOOTING Problem Cause Remedy No sound. Playback has been stopped on the connected component. No appropriate input source has been selected. The SPEAKERS selector is not set properly. The output audio source setting on the connected component is not PCM. The sound suddenly goes off. The automatic power down function has activated. Only the speaker on one side can be heard. Incorrect cable connections. Incorrect setting for the BALANCE control. There is a lack of bass The + and - wires are connected in and no ambience. reverse at the amplifier or the speakers. A "humming" sound Incorrect cable connections. can be heard. No connection from the turntable to the GND terminal. The volume level cannot be increased, or the sound is distorted. The component connected to the LINE 2 REC or LINE 3 REC jacks of this unit is turned off. The sound is degraded when listening with headphones connected to a CD player connected to this unit. This unit is turned off or is in standby mode. The sound level is low. Sound is muted. The loudness control function is operating. The volume level is low while playing a record. Using the BASS, TREBLE, BALANCE and LOUDNESS controls does not affect the sound. The turntable is connected to the jacks other than the PHONO jacks. The record is being played on a turntable with an MC cartridge. The CD DIRECT function or the PURE DIRECT function is turned on. Turn the component on and start playback. Select an appropriate input source with the INPUT selector on the front panel (or one of the Input selector buttons on the remote control). Set the corresponding SPEAKERS selector to A, B or A+B BI-WIRING position. Only PCM audio sources can be played via the DIGITAL (OPTICAL/COAXIAL) jacks of this unit. Set the output audio source of the connected component to PCM. Confirm that there are no other issues causing this problem, and then turn this unit on again. To turn off the AUTO POWER STANDBY function, set the AUTO POWER STANDBY switch to OFF on the rear panel. Connect the cables properly. If the problem persists, the cables may be defective. Set the BALANCE control to the appropriate position. Connect the speaker wires to the correct + and - phase. Connect the audio plugs firmly. If the problem persists, the cables may be defective. Make the GND connection between the turntable and this unit. Turn on the power of the component. Turn on the power of this unit. Press MUTE on the remote control or rotate the VOLUME control. Turn down the volume, set the LOUDNESS control to the FLAT position, and then adjust the volume again. Connect the turntable to the PHONO jacks. Use a turntable equipped with an MM cartridge. The CD DIRECT function or the PURE DIRECT function must be turned off to use those controls. See page 11 11 11 16 4 9 3 10 9, 10 9 - - 7 12 9 9 12 14 En