44In case of difficulty
What seems to be a malfunction is not always so. Before calling for service, check the following table according to the symptom of your trouble.
Operation to reset
The microcomputer may fall into malfunction (impos- sibility to operate, erroneous display, etc.) when the power cord is unplugged while unit is ON or due to an external factor. In this case, execute the following procedure to reset the microcomputer and return it to normal condition.
÷Please note that resetting the microcomputer clears the contents stored in and it returns to condition when it left the factory.
Unplug the power cord from the power outlet then, while holding the “set/demo” key depressed, plug the power cord again.
set/demo
Amplifier section/Speakers
| Symptom | Cause | Remedy |
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| Sound is not produced. | ÷ The speaker cords are disconnected. | ÷ Connect properly referring to “System | 6 |
| ÷ The volume control is set to the mini- | connection”. | |
| ÷ Adjust to an required volume. |
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| mum position. | ÷ Switch MUTE OFF. |
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| ÷ The MUTE key of remote control unit is | % | |
| switched ON. | ÷ Unplug the headphone plug. |
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| ÷ The headphone plug is inserted into the |
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| jack. | ÷ Turn the unit OFF, remove the short- |
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| ÷ The speaker cords are |
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| circuit and turn the unit ON again. |
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| No sound from the head- | ÷ Imperfect insertion. | ÷ Insert correctly. | % |
| phones. |
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| Sound is not produced from | ÷ The speaker cords are disconnected. | ÷ Connect properly referring to “System |
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| the left or right speakers. | ÷ The BALANCE is set completely to the | connection”. | 6 |
| ÷ Adjust the optimum left and right bal- |
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| left or right channel. | ance. | fl |
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Tuner section
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| Symptom | Cause | Remedy |
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| The clock display blinks with- | ÷ There was a power failure. | ÷ Adjust the present time again. | ° |
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| out changing the figures. | ÷ The power cord was unplugged from the | ÷ Adjust the present time again. |
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| outlet. |
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| Timer operation is not pos- | ÷ The present time has not been adjusted | ÷ Adjust the present time referring to |
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| sible. | or there was a power failure. | “Clock adjustment”. |
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| ÷ The timer ON time and OFF time have | ÷ Set the timer ON time and OFF time. | q |
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| not been set. | ÷ Press the TIMER key to set up the execu- |
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| ÷ The timer execution was not set up. |
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| tion. |
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| Radio stations cannot be re- | ÷ The antennas have not been connected. | ÷ Connect antennas. | 6 |
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| ceived. | ÷ A proper broadcasting band has not been | ÷ Select a band. | ) |
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| selected. | ÷ Tune to the frequency of the desired |
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| ÷ The frequency of the station to be re- |
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| ceived is not tuned. | station. |
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section |
| Noise interferes. | ÷ Car ignition noise. | ÷ Install the outdoor antenna in an apart |
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| OFF. |
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| ÷ Influence of an electric appliance. | position from the road. |
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| ÷ Switch the suspected electric appliance |
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Knowledge |
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| ÷ A TV set is installed near the system. | ÷ Install the TV or the system at an in- |
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| creased distance between them. |
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| A station has been preset but | ÷ The frequency of the preset station is | ÷ Preset stations with tunable frequen- |
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| it cannot be received by press- | not tunable. | cies. |
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| ing the P.CALL key. | ÷ The preset memory has been cleared | ÷ Preset stations again. | ¡ |
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| because the power cord has been un- |
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| plugged for a long period. |
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