Troubleshooting guide
Before requesting service, make the below checks.
If you can’t fix the unit as described or if something not listed here occurs, contact your dealer.
Common problems
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No power.
No sound.
“F76” appears on the display, and the unit turns off.
“FAN LOCK” appears on the display.
“F 70” appears on the display.
•Ensure the AC mains lead and system cable are connected.
•Turn the volume up.
•Check connections to speakers and other equipment.
•Select the correct source.
•Change the
•Check that the digital signals can be decoded by this unit.
•Turn PCM FIX or DTS FIX off.
•Determine and correct the cause, then turn the unit on.
Causes include:
−Shorting (bare wires touching) of positive and negative speaker wires.
−Using the subwoofer in a hot environment without proper ventilation. Consult your dealer if the problem occurs again after turning the unit on.
•Turn the unit off, disconnect the AC mains lead, and consult your dealer.
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Sound
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Sound is not heard from the center, surround, or subwoofer speakers.
Cannot use Dolby Pro LogicII or SFC.
•The source may be stereo. Use Dolby Pro LogicII or SFC.
•You cannot use Dolby Pro LogicII or SFC when input is PCM with sampling frequencies of 96 or 88.2 kHz.
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Radio
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The radio cannot be tuned in or there is a lot of noise and interference.
There is a lot of noise when listening to AM.
The correct AM frequency cannot be tuned in.
•Connect the appropriate antenna. (You may need an outdoor antenna or one with more elements.)
•Adjust the position of the FM or AM antenna.
•Reduce the treble.
•Turn off nearby televisions, video decks and DVD players.
•Separate the antenna from other cables, leads, and appliances.
•Press and hold [H.BASS] on the main unit so “DEFEAT” appears (the DSP is defeated). This should reduce noise. The unit cannot play multiple channel sound while the DSP is defeated, so repeat this to reengage the DSP.
•Change the frequency step.
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Reference
Maintenance
If the surfaces are dirty
To clean this unit, wipe with a soft, dry cloth.
•Never use alcohol, paint thinner or benzine to clean this unit.
•Before using chemically treated cloth, carefully read the instructions that came with the cloth.
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