Yamaha RX-V890 Owner's Manual - Page 37

TROUBLESHOOTING If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help. Amplifier SYMPTOM The unit fails to turn on when the POWER switch is pressed. No sound or no picture. CAUSE Power cord is not plugged in or is not completely inserted. Incorrect output cord connections. Appropriate input selector is not pressed. The sound suddenly goes off. Only one side speaker outputs the sound The protection circuit has been activated because of short circuit etc. The SLEEP timer functioned. Incorrect setting of the BALANCE control. Incorrect cord connections. Sound "hums". Incorrect cord connections. No connection from the turntable to the GND terminal. The volume level is low while playing a record. The record is being played on a turntable with an MC cartridge. The volume level cannot be increased, or sound is distorted. The power to the component connected to the REC OUT terminals of this unit is off. No sound from the rear speakers. The sound output level to the rear speakers is set to 0. The monaural sound source is played in DOLBY PRO LOGIC or DOLBY PRO LOGIC ENHANCED mode. No sound from the center speaker. The sound output level to the center speaker is set to 0. FM stereo reception is noisy. The center channel mode is in PHANTOM mode. Incorrect sound field program selection. No sound field program is selected. Because of the characteristics of FM stereo broadcasts, this is limited to cases where the transmitter is too far away or the antenna input is poor. There is distortion and clear reception cannot be obtained even with a good FM antenna. A desired station cannot be tuned in with Auto tuning. There is multipath interference. The station is too weak. A desired station cannot be tuned in with Auto tuning. Weak signal or loose antenna connections. There are continuous crackling and hissing noises. There are buzzing and whining noises (especially in the evening). Noises will result from lighting, fluorescent lamps, motors, thermostats and other electrical equipment. A television set is being used nearby. The remote control transmitter does not work. Direct sunlight or lighting (of an inverter type of fluorescent lamp etc.) is striking the remote control sensor of the main unit. The sound is degraded when monitoring is performed by using the headphones connected to the compact disc player or cassette deck which are connected with this unit. The batteries of this remote control transmitter are too weak. The power to this unit is off. REMEDY FFirmly plug in the power cord. Connect the cords properly. If the problem persists, the cords may be defective. Press the appropriate input selector corresponding to the input source. Turning the unit off and then on will reset the protection circuit. Do not make the SLEEP timer function. Adjust it to the appropriate position. Connect the cords properly. If the problem persists, the cords may be defective. Firmly connect the audio plugs. If the problem persists, the cords may be defective. Make the GND connection between the turntable and this unit. The player should be connected to the unit through the MC head amplifier. Turn the power to the component on. Turn up the sound output level with the REAR LEVEL control. Select another program suitable for the monaural sound source. Turn up the sound output level with the CENTER LEVEL control. Select NORMAL or WIDE. Select the appropriate program. Check the antenna connections. Try using a multiple element FM antenna. Adjust antenna placement to eliminate multipath interference. Use Manual tuning mode. Use a high quality directional FM antenna. Tighten the AM loop antenna connections and rotate it for best reception. Use Manual tuning mode. Use an outdoor antenna and a ground wire. This will help somewhat but it is difficult to eliminate all noise. Relocate this unit away from the TV. Change the position of the main unit. Replace the batteries with new ones. Turn the power to this unit on. 37 FM AM others Remote control transmitter