Kenwood KRF-X9090D - Manual (Page 62)

62 EN
In case of difficulty
Resetting the Microcomputer
The microcomputer may malfunction (unit cannot be operated, or
shows an erroneous display) if the power cord is unplugged while
the power is ON, or due to some other external factor. If this
happens, execute the following procedure to reset the
microcomputer and return the unit to its normal operating
condition. With the power cord plugged in, turn the POWER ON/
OFF key OFF. Then, while holding down the
(ON/
STANDBY) key, press POWER ON/OFF key.
• Please note that resetting the microcomputer will clear the contents
of the memory and returns the unit to the state it was in when it left
the factory.
Amplifier
Cause
• The speaker cords are disconnected.
• VOLUME is set to the minimum position.
• MUTE is ON.
• The SPEAKERS switches are set to OFF.
• Headphones are connected to the PHONES
jack.
• Speaker cords are short-circuited.
• The speaker cord is disconnected.
• The speaker is not set up correctly.
• The surround speaker cords and/or the center
speaker cord is disconnected.
• The speaker is not set up correctly.
• A surround mode has not been engaged.
• The surround and/or center volume controls
are set to the minimum level.
• The audio cord from the record player is not
connected to the PHONO jacks.
• The record player is not grounded.
• There are many possible causes for this
problem, depending on the type of DVD player
used.
• The input mode is set to digital manual.
• The software is copy-guarded.
• Problems are detected while in AUTO SETUP
calibration.
Remedy
• C o n n e c t t h e m p r o p e r l y r e f e r r i n g t o
“Connecting the speakers” %
• Adjust the volume to a proper level. §
• Turn OFF the MUTE. •
• Set the SPEAKERS switches to ON. §
• Unplug the headphones plug. •
• Turn the power off, eliminate the short-
circuiting, then turn on the power again.
• Connect it properly referring to “Connecting
the speakers”. %
• Set it up properly referring to “Preparing for
surround sound”. (
• Connect it properly referring to “Connecting
the speakers”. %
• Set it up properly referring to “Preparing for
surround sound”. (
• Select a surround mode.
• Adjust the speaker levels using the test tone.
£
• Insert the audio cord plugs securely into the
PHONO jacks.
• Connect the grounding wire to the GND
terminal on the rear panel.
• Set the input mode to digital manual before
starting playback of the Dolby Digital source.
8
• Press the INPUT MODE key to select to full
auto mode. 8
• Copy-guarded video software cannot be
recorded.
• Refer to "About error messages" and "About
warning messages". ¡
Symptom
No sound from the speakers.
The STANDBY indicator blinks and sound is
not output.
Sound is not output from one of the speakers.
Sound is not output from the surround
speakers and / or the center speaker, or their
sound is very small.
A humming noise is generated when the
PHONO input selector is selected.
When playing a Dolby Digital source signal
using a DVD player, the sound is cut off soon
after it starts.
No sound is produced during playback from
a DVD player.
A video source cannot be recorded
normally.
Display such as Exx : XXX appears.
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