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.
| SYMPTOM | CAUSE | REMEDY | |
| The unit fails to turn on when the POWER | Power cord is not plugged in or is not completely | Firmly plug in the power cord. | |
| switch is pressed. | inserted. |
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| No sound or no picture. | Incorrect output cord connections. | Connect the cords properly. If the problem persists, | |
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| the cords may be defective. | |
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| The MUTING switch is ON. | First, turn the volume control to full left. Then, turn | |
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| the MUTING switch OFF with the remote control | |
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| transmitter and adjust the volume. | |
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| Appropriate input selector is not pressed. | Press the appropriate input selector corresponding | |
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| to the input source. | |
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| The sound suddenly goes off. | The protection circuit has activated because of | Turning the unit off and then on will reset the | |
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| short circuit etc. | protection circuit. | |
| Only one side speaker outputs the sound. | Incorrect setting of the BALANCE control. | Adjust it to the appropriate position. | |
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| Incorrect cord connection. | Connect cord properly. If the problem persists, the | |
Amplifier |
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| cables may be defective. | |
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Sound “hums”. | Incorrect cord connections. | Firmly connect the audio plugs. If the problem | ||
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| persists, the cord may be defective. | ||
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| No connection from the turntable to the GND | Make the GND connection between the turntable | ||
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| terminal. | and this unit. | |
| The volume level is low while playing a record. | The record is being played on a turntable with an | The player should be connected to the unit through | |
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| MC cartridge. | the MC head amplifier. | |
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| No sound from the rear speakers. | The sound output level of the rear speakers is 0. | Turn up the sound output level with the REAR | |
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| LEVEL key. | |
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| The monaural sound source is played in DOLBY | Select another program suitable for the monaural | |
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| PRO LOGIC or ENHANCED mode. | sound source. | |
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| No sound from the center speaker. | The sound output level of the center speaker is 0. | Turn up the sound output level with the CENTER | |
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| LEVEL key. | |
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| The center mode is in PHANTOM mode. | Select NORMAL or WIDE. | |
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| Incorrect sound field program selection. | Select the appropriate program. | |
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| No sound field program is selected. |
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| FM stereo reception is noisy. | Because of the characteristics of FM stereo | Check the antenna connections. | |
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| broadcasts, this is limited to cases where the | Try using a multiple element FM antenna. | |
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| transmitter is too far away or the antenna input is |
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FM |
| poor. |
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There is distortion and clear reception cannot | There is multipath interference. | Adjust antenna placement to eliminate multipath | ||
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| be obtained even with a good FM antenna. |
| interference. | |
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| A desired station cannot be tuned in with Auto | The station is too weak. | Use Manual tuning mode. | |
| tuning. |
| Use a high quality directional FM antenna. | |
| A desired station cannot be tuned in with Auto | Weak signal or loose antenna connections. | Tighten the AM loop antenna connections and | |
| tuning. |
| rotate it for best reception. | |
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| Use Manual tuning mode. | |
AM |
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There are continuous crackling and hissing | Noises will result from ligtning, fluorescent lamps, | Use an outdoor antenna and a ground wire. This | ||
noises. | motors, thermostats and other electrical equipment. | will help somewhat but it is difficult to eliminate all | ||
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| noise. | |
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| There are buzzing and whining noises | A television set is being used nearby. | Relocate this unit away from the TV. | |
| (especially in the evening). |
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| The remote control transmitter does not work. | Direct sunlight or lighting (of an inverter type of | Change the position of the main unit. | |
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| flourescent lamp etc.) is striking the remote control |
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| sensor of the main unit. |
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transmitter |
| The batteries of this remote control transmitter are | Replace the batteries with new ones and press the | |
| weak. | RESET button on the remote control transmitter. | ||
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Learning cannot be made successfully. | The batteries of this remote control transmitter | Replace the batteries (and press the RESET button | ||
(The TRANSMIT/LEARN indicator does not | and/or the other remote control transmitter are | for this remote control transmitter). | ||
illuminate or flash.) | weak. |
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control |
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| The distance between the two remote control | Place the remote control transmitters with the | ||
| transmitters is too long or too short. | proper distance. | ||
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| The signal coding or modulation of the other remote | Learning is not possible. | ||
Remote |
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| control transmitter is not compatible with this remote |
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| control transmitter. |
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| Memory capacity is full. | Further learning is not possible without deleting | ||
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| unnecessary commands. | |
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| The internal microcomputer “freezes”. | Press the RESET button on the remote control | |
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| transmitter. | |
Others | The sound is degraded when monitoring is | Power cord of this unit is not plugged in. | Plug in the power cord. | |
performed by using the headphones connected |
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to the compact disc player or cassette deck |
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which are connected with this unit. |
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