Troubleshooting - Marantz SR4023 User Manual

TROUBLESHOOTING
In case of trouble, check the following before calling for service:
1. Are the connections made properly?
2. Are you operating the unit properly following the user's gUide?
3. Are the power amplifiers and speaker working properly?
If the unit does not operate properly, check items shown in the following table.
If your trouble cannot be recovered with the remedy actions listed in the following table, malfunction of the
internal circuitry is suspected; immediately unplug the power cable and contact your dealer, nearest Marantz
authorized dealer or the Marantz Service Center in your country.
S.DIRECT F/P T.MODE MUTE
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ENGLISH
HOW TO RESET THE UNIT
Should the operation or display seem to be abnormal,
reset the unit with the following procedure.
The SR4023 is turned on, press and hold the MUTE
and S.DIRECT buttons simultaneously for 3 seconds
or more.
Remember that the procedure will reset the settings
of the function selector, TUNER PRESET etc., to
their initial settings.
SYMPTOM CAUSE REMEDY
SR4023 cannot be turned up. The power plug is not connected. Connect the power plug to the outlet.
No sound and picture are output even Mute is on. Cancel mute using the remote control
when power is on. unit.
The input cable is not connected See the connection diagram and connect
correctly. the cables correctly.
The master volume control is turned all Adjust the master volume.
the way down.
The function selector position is wrong. Select correct position.
No speaker output. The headphones are connected to the Disconnect the headphones. (Speakers
headphone jack. will not output sound when headphones
are connected.)
Incorrect Audio or Video for selected Input cable connected incorrectly. Connect the cable correctly by referring
source. to the connection diagram.
FM or AM reception fails. Antenna connection is incomplete. Correctly connect the indoor FM and
AM antennas to FM and AM antenna
outlets.
Noise is heard during AM reception.
Reception is affected by other electrical Try changing location where the AM
fields. indoor antenna is set up.
Noise is heard during FM reception. The radio waves from the broadcasting Install an FM outdoor antenna.
station are weak.
Cannot get programmed station when Preset data has been erased. Disconnecting power plug for long
the PRESET button is pressed. periods of time will erase preset data.
If that happens, input the preset data
again.
Control with the remote control unit fails. Batteries are consumed. Replace all the batteries with new ones.
Remote controller's function-key setting Select different position from which
is wrong. equipment will be controlled.
The distance between this unit and the Move closer to this unit.
remote commander is too far.
Something is blocking unit and the Remove offending object.
remote commander.
The main unit and remote controller Set the main unit and remote controller
are set to use different remote control to use the same remote control code.
codes.
FRONT KEY (BUTTON) LOCK OF THE UNIT
If the F/P and T.MODE buttons on the front panel are
both pressed at the same time for three seconds or
more, all the buttons on the front panel, (excluding
the POWER ON/STANDBY button), as well as the
INPUT SELECTOR knob and VOLUME knob, will
become locked. "F-KEY LOCK!" will appear in the
display.
Release the lock by pressing the same two keys
again at the same time for three seconds or more.
"F-KEY UNLOCK" will appear in the display, and the
keys will unlock.
GENERAL MALFUNCTION
If the equipment malfunctions, this may be because
an electrostatic discharge or AC line interference has
corrupted the information in the equipment memory
circuits. Therefore:
disconnect the plug from the AC line supply
after waiting at least three minutes, reconnect
the plug to the AC line supply
re-attempt to operate the equipment
Memory backup
• In case a power outage occurs or the power
cord is accidentally unplugged, this unit is
equipped with a backup function to prevent
memory data such as the preset memory
from being erased.
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