Yamaha AS1000 Owner's Manual - Page 24

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 contact the nearest authorized Yamaha dealer or service center. Problem Cause Remedy This unit fails to turn on. The power cable is not connected to the AC IN inlet on the rear panel or not plugged in the AC wall outlet. Connect the power cable firmly. The protection circuitry has been activated Check that the speaker wires are not touching each because of a short circuit, etc. other or shorting out against the rear panel of this unit, and then turn the power of this unit back on. This unit has been exposed to a strong external electric shock (such as lightning or strong static electricity). Turn off this unit, disconnect the power cable, plug it back in after 30 seconds, and then use it normally. The POWER indicator on the front panel flashes. The protection circuitry has been activated because of a short circuit, etc. Check that the speaker wires are not touching each other or shorting out against the rear panel of this unit, and then turn the power of this unit back on. 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. The INPUT indicator on the front panel flashes and the volume is turned down when you turn on this unit. The protection circuitry has been activated Check that the speaker wires are not touching each because of a short circuit, etc. other or shorting out against the rear panel of this unit, and then turn the power of this unit back on. No sound. Incorrect input or output cable connections. Connect the cables properly. If the problem persists, the cables may be defective. No appropriate input source has been selected. Select an appropriate input source with the INPUT selector on the front panel (or one of the input selector buttons on the remote control). The SPEAKERS switch is not set properly. Switch the SPEAKERS switch to the appropriate position. Speaker connections are not secure. Secure the connections. The sound suddenly goes off. The protection circuitry has been activated Check that the speaker wires are not touching each because of a short circuit, etc. other or shorting out against the rear panel of this unit, and then turn the power of this unit back on. Only the speaker on one side can be heard. Incorrect cable connections. Incorrect setting for the BALANCE control. Connect the cables properly. If the problem persists, the cables may be defective. Set the BALANCE control to the appropriate position. There is a lack of bass The + and - wires are connected in and no ambience. reverse at the amplifier or the speakers. Connect the speaker wires to the correct + and - phase. A "humming" sound Incorrect cable connections. is heard. Connect the audio cable plugs firmly. If the problem persists, the cables may be defective. No connection from the turntable to the GND terminal. Connect the turntable to the GND terminal of this unit. See page 17 14 - 14 - 14 14 9, 12 7 14 14 14 8 14 14 14 24 En