Yamaha A-S301 Owners Manual - Page 15

TROUBLESHOOTING Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions below do not help, turn off this unit, disconnect the power cable, and then contact the nearest authorized Yamaha dealer or service center. Problem Cause Remedy This unit fails to turn on. The power cable is not connected or the plug is not completely inserted. The A AMP is pressed on the remote control while this unit is turned off. Connect the power cable firmly. Press A (power) switch on the front panel to on. See page 10 2 The impedance setting of the connected speaker is too small. Use speaker(s) with proper speaker impedance. 5 The protection circuitry has been activated Check that the speaker wires are not touching each because of a short circuit, etc. other and then turn the power of this unit back on. 10 There is a problem with the internal circuitries of this unit. Disconnect the power cable and contact the nearest authorized Yamaha dealer or service center. - This unit turns off The speaker wires are touching each other Connect the speaker cables properly and press the A suddenly and the or shorting out against the rear panel. (power) switch again. The INPUT indicators blink power indicator and the volume is decreased to the lowest setting blinks. automatically, then the INPUT indicators stop 10 flashing and the last input source selected lights up. Confirm normal sound output from speakers by increasing the volume gradually. The speaker is malfunctioning. Replace the speaker set and press the A (power) switch again. The INPUT indicators blink and the volume is decreased to the lowest setting automatically, then the INPUT indicators stop - flashing and the last input source selected lights up. Confirm normal sound from speakers by increasing the volume gradually. The protection circuitry has been activated Rotate the VOLUME control on the front panel to because of excessive input or excessive decrease the volume level and then turn the power on - volume level. again. The protection circuitry has been activated Allow about 30 minutes for the temperature inside due to excessive internal temperature. this unit to decrease, rotate the VOLUME control on the front panel to lower the volume and then turn the - power on again. Set the unit in a place where heat can readily dissipate from the unit. The IMPEDANCE SELECTOR switch is Turn the power off and slide the IMPEDANCE not fully slid to either position. SELECTOR switch all the way to the correct position. 5 The IMPEDANCE SELECTOR switch is Set the IMPEDANCE SELECTOR switch to the not set to the correct position. position that corresponds to the impedance of your 5 speakers. This unit has been exposed to a strong Turn off this unit, disconnect the power cable, plug it external electric shock (such as lightning back in after 30 seconds, then use the unit normally. - or strong static electricity). No sound. There is a problem with the internal circuitries of this unit. Disconnect the power cable and contact the nearest authorized Yamaha dealer or service center. - Sound is muted. Press MUTE on the remote control or rotate the VOLUME control. 7 Incorrect cable connections. Connect the stereo cable for audio units and the speaker wires properly. If the problem persists, the 9 cables may be defective. 13 En