TROUBLESHOOTING
Problem | Cause | Remedy | Refer |
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A “humming” sound | Incorrect cable connections. | Firmly connect the audio plugs. If the problem | 10 – 16 |
can be heard. |
| persists, the cables may be defective. |
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The volume level cannot be increased, or the sound is distorted.
The component connected to the OUT (REC) jacks of this unit is turned off.
Turn on the power to the component. | — |
The sound effect | It is not possible to record the sound | — |
cannot be recorded. | effect by a recording component. |
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A source cannot be recorded by a digital recording component connected to the DIGITAL OUTPUT jack of this unit.
A source component is not connected to the DIGITAL INPUT jacks of this unit.
Connect the source component to the DIGITAL | — |
INPUT jacks of this unit. |
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The sound field | “10 MEM. GUARD” in the SET MENU |
parameters and some | is set to ON. |
other settings on this |
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unit cannot be |
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changed. |
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Set “10 MEM. GUARD” in the SET MENU to | — |
OFF. |
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This unit does not | The internal microcomputer has been |
operate properly. | frozen by an external electric shock (such |
| as lightning or excessive static electricity) |
| or by a power supply with low voltage. |
Disconnect the AC power cord from the outlet | — |
and then plug it in again after about 30 seconds. |
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“CHECK SP WIRES” appears on the front panel display.
Speaker cables are short circuited.
Make sure all speaker cables are connected | — |
correctly. |
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There is noise interference from digital or
This unit is too close to the digital or
Move this unit further away from such | — |
equipment. |
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This unit suddenly | The internal temperature becomes too |
turns into the standby | high and the overheat protection circuitry |
mode. | has been activated. |
Wait until this unit cools down and then turn it | — |
back on. |
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