Yamaha A-S700 Owner's Manual - Page 17

TROUBLESHOOTING Problems No sound The sound suddenly goes off. Only the speaker on one side can be heard. There is a lack of bass and no ambience. A "humming" sound can be heard. The volume level is low while playing a record. The volume level cannot be increased, or the sound is distorted. The sound is degraded when listening with the headphones connected to the CD player or the tape deck connected to this unit. The sound level is low. The input source cannot be changed although the INPUT selector is rotated. Using the BASS, TREBLE, BALANCE and LOUDNESS controls does not affect the tonal quality. Possible Causes Solutions Refer to page Sound is muted. Press MUTE on the remote control to resume the audio output. 3 Incorrect cable connections. Connect the stereo cable for audio units and the speaker wires properly. If the problem persists, the 6 cables may be defective. No appropriate input source has been Select an appropriate input source with the INPUT selected. selector on the front panel (or one of the input 9 selector buttons on the remote control). The SPEAKERS selector is not set properly. Set the corresponding SPEAKERS selector to A, B or A+B position. 9 The protection circuitry has been activated Check that the IMPEDANCE SELECTOR setting is because of a short circuit, etc. correct. 5 Check that the speaker wires are not touching each other or shorting out against the rear panel of this 6 unit, and then turn the power of this unit back on. Incorrect cable connections. Connect the cables properly. If the problem persists, the cables may be defective. 6 Incorrect setting for the BALANCE control. Set the BALANCE control to the appropriate position. 10 The + and - wires are connected in Connect the speaker wires to the correct + and - reverse at the amplifier or the speakers. phase. 6 Incorrect cable connections. Connect the audio plugs firmly. If the problem persists, the cables may be defective. 6 No connection from the turntable to the GND terminal. Make the GND connection between the turntable and this unit. 6 The turntable is connected to the jacks other than the PHONO jacks. Connect the turntable to the PHONO jacks. 6 The record is being played on a turntable Use a turntable equipped with an MM cartridge. with an MC cartridge. - The component connected to LINE 2 REC Turn on the power of the component. or LINE 3 REC terminals of this unit is turned off. - The power of this unit is turned off, or this Turn on the power of this unit. unit is set to the standby mode. 9 The LOUDNESS control is functioning. Set the LOUDNESS control to the FLAT position. 11 The CD DIRECT AMP switch is turned Turn off the CD DIRECT AMP switch. on. 10 The CD DIRECT AMP switch or the PURE DIRECT switch is turned on. The CD DIRECT AMP switch or the PURE DIRECT switch must be turned off to use those controls. 10 ADDITIONAL INFORMATION English 13 En