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13
TROUBLESHOOTING
Whenever you have a problem with the amplifier, check the
following points before requesting service. What may seem
to be a serious malfunction is often the result of a simple
operational error. If you still have problems, contact your
original dealer or write directly to your nearest service
provider as listed on the Marantz Authorised Service Station
list.
The amplifier does not operate and indicators do not light.
1. Check to see if the power cord is correctly inserted into a
power outlet.
Indicators light, but the amplifier does not operate.
1. Check the SELECTOR and VOLUME settings.
2. Check to see if the supplied connecting pins are correctly
inserted into the PROCESSOR IN/OUT jacks.
Sound is being produced by only one speaker.
1. Check the BALANCE setting.
2. Turn off the amplifier and switch the connections of the
left and right speaker cords. If the same speaker still does
not produce sound, it probably means that the connection
cord or the speaker itself is defective.
Considerable humming is produced when playing from a
turntable.
1. Check to see if the plugs from the turntable are properly
connected to the amplifier’s PHONO jacks.
2. Connect the turntable’s ground wire to the GND terminal
on the rear panel of the amplifier. If the ground wire is
already connected, try disconnecting it.
3. Check to make sure that the turntable’s phono cartridge
is securely attached to the tone arm.
Cannot perform remote operation.
1. Make sure the remote control unit’s (RC8000PM)
transmitter is pointed directly as the amplifier’s remote
sensor when you perform a remote control unit opera-
tion.
2. Check for obstructions between the remote control unit’s
transmitter and the amplifier’s remote sensor.
3. Check the batteries of the remote control unit.
4. Make sure there is no strong light (from a window or other
source) shining on the amplifier’s remote sensor.
5. Check to see if there is an RCA cord connected to the
REMOTE CONTROL IN jack on the amplifier’s rear panel.
CARE AND MAINTENANCE
This section describes care and maintenance that you must
perform in order to make sure your Marantz amplifier
performs at the level for which it is designed. Be sure to
unplug the amplifier from the mains supply before any care
and maintenance.
NORMAL CLEANING
The exterior of your amplifier will last indefinitely with proper
care and cleaning. For normal cleaning, wipe exterior
surfaces with a soft, lint-free cloth.
IMPORTANT:
Any of the following will mar the finish of your amplifier and
should never be used for cleaning.
— Scouring pads, steel wool, abrasive powders
— Harsh chemical agents (such as a lye solution)
— Alcohol, thinners, benzine, insecticide, or other volatile
agents.
SPECIAL CLEANING
Should it amplifier ever become so soiled that normally cleaning
is not enough, use the following procedure for cleaning.
1. Prepare a cleaning solution of one part mild neutral liquid
detergent and six parts water.
2. Moisten a soft, lint-free cloth in the cleaning solution and
then wring out all excess moisture from the cloth.
3. Wipe off the amplifier with the damp cloth.
4. Dry the amplifier by wiping it with a soft dry cloth.
REPAIRS
Only the most competent and qualified serviced technicians
should be allowed to service this amplifier. Marantz and its
factory-trained warranty personnel have the special
knowledge and facilities required for the repair and
calibration of this amplifier. After expiration of the warranty
period, repairs can be performed for a separate charge.
Whenever you experience problems, first try to solve the
problem yourself using the troubleshooting procedures
provided on this page. If this does not work, contact your
original dealer or write directly to your nearest service
provider as listed on the Marantz Authorised Service Station
list. When you write, be sure to include the model and serial
number of your amplifier, together with a detailed description
of the problem.