Yamaha DSP-AX1 Owner's Manual - Page 81

English Troubleshooting Refer to the chart below when the DSP-AX1 does not function properly. If the problem you are experiencing is not listed below or if the instruction below does not help, turn the power off, disconnect the power cord, and contact your dealer or the nearest Yamaha Audio Products Service Department. After this unit is exposed to strong external electric shock (such as lightning and large static electricity) or you mishandle the operation of this unit, it may not function properly. In these cases, turn the power off, unplug the power cord, plug it back in after 30 seconds, and start operating. General Problem Possible Cause What to Do The unit fails to turn on when STANDBY/ON is pressed, or returns to standby mode suddenly soon after the power is turned on. The power cord is not plugged in or is not completely inserted. IMPEDANCE SELECTOR on the rear panel is not set correctly. Plug in the power cord securely (see page 24). Set the switch completely to either position (depending on your speakers) while this unit is in standby mode (see page 22). The protection circuitry has been activated. Make sure all speaker wire connections on this unit and on all speakers are secure and that the wire for each connection does not touch anything other than its respective connection. Hum There is a faulty cable connection. Connect the audio plugs securely. If the problem persists, the cords may be defective. No connection from the turntable to the GND terminal. Connect the grounding cord of your turntable to the GND terminal of this unit (see page 16). No Sound or no picture The volume is turned down. Turn up the volume. Faulty or incorrect input or output connection. Connect the equipment correctly. If the problem persists, the cords may be defective. Incorrect input source. Select the appropriate input source with INPUT SELECTOR. This unit is set to DTS input mode. Press INPUT MODE to select another input mode Digital signals other than PCM audio, Dolby Digital, or DTS encoded signals are input to this unit by playing a CD-ROM, etc. Play a source whose signals this unit can reproduce. No picture The source equipment is connected to this unit using an S-video cable, but there is no S-video connection between this unit and your video monitor. Connect this unit's S VIDEO MONITOR OUT terminal to the TV's S-video input terminal or disconnect the S-video cable from the source equipment. No sound is coming from one side. There is a faulty cable connection. Connect all cables securely. If the problem persists, the cords may be defective. BALANCE is turned all the way to one side. Adjust BALANCE. The volume level cannot be increased very much when adjusting VOLUME. MUTE is on. The equipment connected to the TAPE/ MD OUT jacks of this unit is turned off. Turn VOLUME to minimum, press MUTE to restore audio, and adjust the volume again. Turn on the power to the equipment. The sound suddenly goes off. The protection circuitry has been activated Reset the protection circuitry by turning the because of short circuit etc. unit off and on. The SLEEP timer came on. Cancel the SLEEP timer function. 79