13
LAST FUNCTION MEMORY
• This unit is equipped with a last function memory which stores the input and output setting conditions as they
were immediately before the power is switched off.
This function eliminates the need to perform complicated resettings when the power is switched on.
• The unit is also equipped with a back-up memory. This function provides approximately one week of memory
storage when the main unit’s power switch is off and with the power cord disconnected.
14
INITIALIZATION OF THE MICROPROCESSOR
When the indication of the display is not normal or when the operation of the unit does not shows the reasonable
result, the initialization of the microprocessor is required by the following procedure.
1
Switch off the unit using the main unit’s power
operation switch.
2
Hold the following FRONT SPEAKER button
and ZONE 2 button, and turn the main unit’s
power operation switch on.
3
Check that the entire display is flashing with an
interval of about 1 second, and release your
fingers from the 2 buttons and the
microprocessor will be initialized
.
Turning on the main unit’s power from the
standby mode without using the remote
control unit
•Press the power switch
on the main unit
while pressing the SOURCE button on the
main unit’s panel to turn on the power.
15
TROUBLESHOOTING
If a problem should arise,first check the following.
1. Are the connections correct ?
2. Have you operated the receiver according to the Operating Instructions ?
3. Are the speakers, turntable and other components operating property ?
If this unit is not operating properly, check the items listed in the table below. Should the problem persist, there
may be a malfunction.
Disconnect the power immediately and contact your store of purchase.
Symptom Cause Measures Page
DISPLAY not lit and sound not
produced when power switch set
to on.
• Power cord not plugged in
securely.
•
Check the insertion of the power
cord plug.
•Turn the power on with the remote
control unit after turning the
POWER switch on.
4
23
DISPLAY lit but sound not
produced.
•
Speaker cords not securely connected.
•
Improper position of the audio
function button.
•
Volume control set to minimum.
•
MUTING is on.
•
Digital signals not input Digital input
selected.
•
Connect securely.
•
Set to a suitable position.
•
Turn volume up to suitable level.
•
Switch off MUTING.
•
Input digital signals or select input
jacks to which digital signals are
being input.
8
23
24
25
23
DISPLAY not lit and power
indicator is flashing rapidly.
•
Speaker terminals are short-
circuited.
•
Block the ventilation holes of the
set.
•
The unit is operating at continuous
high power conditions and/or
inadequate ventilation.
•
Switch power off, connect speakers
properly, then switch power back
on.
•
Turn off the set’s power, then
ventilate it well to cool it down.
Once the set is cooled down, turn
the power back on.
•
Turn off the set’s power, then
ventilate it well to cool it down.
Once the set is cooled down, turn
the power back on.
8
3, 8
3, 8
Sound produced only from one
channel.
•
Incomplete connection of speaker
cords.
•
Incomplete connection of
input/output cords.
•
Connect securely.
•
Connect securely.
8
4 ~ 8
Positions of instruments
reversed during stereo
playback.
•
Reverse connections of left and
right speakers or left and right
input/output cords.
•
Check left and right connections. 8
The on screen display is not
displayed.
•
“On screen display” is set to off on
the system setup menu screen.
•
Set “on screen display” on the
system setup menu screen to on.
16
Humming noise produced when
record is playing.
•
Ground wire of turntable not
connected properly.
•
Incomplete PHONO jack
connection.
•
TV or radio transmission antenna
nearby.
•
Connect securely.
• Connect securely.
• Contact your store of purchase.
4
4
—
Howling noise produced when
volume is high.
•
Turntable and speaker systems too
close together.
•
Floor is unstable and vibrates easily.
•
Separate as much as possible.
•
Use cushions to absorb speaker
vibrations transmitted by floor. If
turntable is not equipped with
insulators, use audio insulators
(commonly available).
—
—
Sound is distorted.
•
Stylus pressure too weak.
•
Dust or dirt on stylus.
•
Cartridge defective.
•
Apply proper stylus pressure.
•
Check stylus.
•
Replace cartridge.
—
—
—
Common problems when listening to the CD, records, tapes and FM broadcasts, etc.
Volume is weak.
•
MC cartridge being used.
•
Replace with MM cartridge or use a
head amplifier or step-up
transformer.
4
When playing records
System setup screen does not
appear
•You are using headphones.
• Mute mode is set.
• Monitor TV not connected to AVR-
2803.
• Unplug the headphones from the
headphones jack.
• Cancel the mute mode.
• Connect a monitor TV.
25
25
5, 6
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