If your 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, 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 | |
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| No power even if the POWER switch is | AC supply lead is not plugged in. | Plug in the AC supply lead. | |
| pressed. |
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| No sound from one speaker | Loose speaker connections. | Connect properly. | |
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| No sound from speakers. | Internal protection circuit is functioning. | Unplug the AC supply lead from the wall AC outlet, and then | |
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| plug in again. | |
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| No sound from the rear speakers. | One rear speaker connection is loose or bad. | Connect it properly. | |
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| The sound output level to the rear speakers is | Raise the sound output level to the rear speakers. | |
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| set to minimum. |
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| No sound field program is selected. | Select the appropriate program. | |
System |
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No sound from the center speaker. | The sound output level to the center speaker is | Raise the sound output level to the center speaker. | ||
| set to minimum. |
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| The center channel mode is in PHANTOM | Select NORMAL mode. | ||
The |
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| mode. |
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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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| No sound (or no picture) from an external | Incorrect cord connections. | Connect the cords properly. If the problem persists, the | |
| unit connected with this unit. |
| cords may be defective. | |
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| Input source selection is not proper. | Make a proper input source selection. | |
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| Can’t set timer. | Current time is not set. | Set current time. | |
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| This unit will not operate properly. | The internal microcomputer has been frozen by | Unplug the AC supply lead from the wall AC outlet, and then | |
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| an external electric shock (lightning, excessive | plug in again after about one minute. | |
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| static electricity, etc.) or power supply with low |
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| voltage. |
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| Excessive static in FM broadcasts. | Interference from starting motor of nearby car. | Position the FM antenna as high and as far away from | |
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| nearby roads as possible. Connect using a coaxial cable. | |
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| Interference from thermostat of nearby electrical | ||
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| appliance. |
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| Noise increases during stereo broadcasts. | Antenna input is too weak due to obstructions or | Check antenna connections. | |
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| excessive distance from broadcasting station. |
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| Install a | ||
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| Stereo broadcasts are noisy and STEREO | Insufficient antenna input. | Install an antenna appropriate for the electric field strength of | |
TUNER | indicator blinks on and off. |
| your area. | |
Cannot select preset stations. | Preset memory has been erased. | Reprogram memory presets. | ||
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Buzzing or static during AM broadcasts. | Interference from source such as lightning, | Problem is difficult to eliminate but can be lessened by | ||
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| flourescent lights, electric motors or thermostat | grounding AM loop antenna. | |
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| of nearby electrical appliance. |
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| TV or microprocessor is being used nearby. | Move away from TV or microprocessor. | |
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| AM broadcast sensitivity is poor. | Radio signal is weak or antenna is not properly | Properly connect AM loop antenna. | |
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| connected. |
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| Change orientation of AM loop antenna. | ||
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| Install an external AM antenna. | |
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PLAYER | Playback will not begin even if disc is loaded. | Disc is upside down. | Load disc label side up. | |
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| Disc is dirty. | Clean disc. | ||
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No sound. | Input selector setting is incorrect. | Select the CD player by turning the INPUT SELECTOR | ||
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CD | Sound stops suddenly (always at same spot). | Disc is dirty. | Clean disc. | |
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| Volume is set too high. | Lower volume. | ||
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CONTROL | Remote control doesn’t work. | Batteries are dead. | Replace batteries. | |
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| Remote control is too far away or is being used | Use within 6 m and 60° radius. | ||
| at incorrect angle. |
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| Direct sunlight or lighting (of an inverter type of | Change position of the main unit. | ||
REMOTE |
| flourescent lamp etc.) is striking the remote |
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| control sensor of the main unit. |
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TV functions strangely when the remote | Remote control is being used near TV set with a | Relocate this unit away from the TV or cover TV’s remote | ||
control is used. | remote control sensor. | control sensor. | ||
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