TROUBLESHOOTING
If you believe something is wrong with your amplifi er, check the following points. Unintentional errors in operation or mistakes made in the connections are sometimes misinterpreted as failure.
If the failure persists even after checking the below points, contact your dealer, your nearest Marantz Consumer Marketing offi ce or customer center, or a Marantz service center.
Symptom | Cause | Remedy |
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The amplifier's power fails to | The power plug is not connected. | Insert the power plug into the wall | 7 | |
come on. |
| outlet. |
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No sound can be heard from the | The connecting cables (input) or speaker | Check the cable connections. |
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speakers. | cables have been incorrectly connected. |
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| The setting of one or more of the input | Set the input switch to the position that |
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| selector switches does not correspond | corresponds to the input connected to |
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| to the input connector (BALANCED or | the amplifier. |
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| UNBALANCED) to which the cable has |
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| been connected. |
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The power suddenly goes | The temperature inside the amplifier has | • Turn off the power, and wait until |
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off, and the standby indicator | risen, tripping the protection circuit. | the amplifier's temperature | has |
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blinks slowly (about two times |
| fallen to a low enough level before |
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a second). |
| turning the power back on. |
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| • Check whether the amplifi er has | ||
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| been installed in a position that |
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| interferes with the dissipation of its |
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| heat. |
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| The protection circuit has been tripped | • Turn the power off, and check the |
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| because two conductors ("+" and | speaker cable connections. |
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| a speaker cable are touching each other | • | the | 6 |
| or because the conductors have made | conductors of the speaker cables. |
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| contact with the rear panel or another |
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| metal part. |
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| Sound is being played at a volume higher | Turn the power off, turn down the |
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| than the performance of the amplifier can | volume control on the control amplifier | – | |
| deliver. | connected to this amplifier, then turn | ||
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| the power back on. |
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| Speakers with an impedance below the | Use speakers with the specified | 6 | |
| specified rating (6 Ω) are being used. | impedance. |
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The power suddenly goes off, | The amplifier's protection circuit has | Disconnect the power plug from the |
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and the standby indicator blinks | been tripped. | power outlet, and ask your nearest | 14 | |
rapidly (about eight times a |
| service center to repair the amplifier. | ||
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second). |
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ENGLISH
RESETTING THE AMPLIFIER
This amplifi er features a microcontroller.
The microcontroller can be reset by following the steps below.
IN OUT IN
ONTROL REMOTE CONTROL
1. Set the amplifi er to standby or turn its power on.
2. Use the tip of a needle or other
3. When the amplifi er power is already on, the amplifi er is fi rst set to standby mode, after which the microcontroller is initialized, and the power is turned back on.
When the microcontroller is reset with the amplifi er in standby mode, it is initialized, then the power is turned back on.
NAMES AND | FUNCTION |
BASIC | CONNECTIONS |
OPERATION | |
ADVANCED | CONNECTIONS |
TROUBLESHOOTING | |
OTHERS | |
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