Marantz ST-17 - Manual (Page 12)

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CARE AND MAINTENANCE
This section describes the care and maintenance tasks that must be
performed to optimize the operation of your Marantz equipment.
CLEANING OF EQUIPMENT EXTERNAL SURFACES
The exterior finish of your ST-17 will last indefiniely with proper care and
cleaning. Never use scouring pads, steel wool, scouring powders or
harsh chemical agents (e.g., lye solution), alchol, thinners, benzine,
insecticide or other volatile substances as these will mar the finish of the
equipment.
Likewise, never use cloths containing chemical substances. If the
equipment gets dirty. wipe the external surfaces with a soft, lint- free
cloth.
If the equipment becomes heavily soiled:
— dilute some washing up liquid in water, in a ratio. of one part
detergent to six parts water
— dip a soft, lint free in the solution and wring the cloth out until it is
damp.
— wipe the equipment with the damp cloth.
— dry the equipment by wiping it with a dry cloth.
REPAIRS
Only the most competent and qualified service technicians should be
allowed to service the equipment. The Marantz company and its factory-
trained warranty station personal have the knouwledge and special
facilities needed for repair and calibration of this precision equipment.
After the warranty period has expired, repairs will be performed for a
charge if the equipment can be returned to normal operation.
In the event of difficulty, refer to your dealer or write directly to the
nearest location to you that is listed on the Marantz Authorised Service
Station list. If writing, please include the mode and serial number of the
equipment together with a full description of what you think is abnormal
about the equipment's behaviour.
TROUBLESHOOTING
Should faults occur, it is in many cases not necessary not necessary to
consult your dealer or technical service department. On the basis of the
following checks you will be able to rectify a number of faults yourself
without difficulty.
If the fault cannot be remedied after the following checks, please
consult your dealer or nearest Marantz service agent.
The tuner does not work and the indicators do not light up.
1. Check that the mains lead is plugged in prpperly to the power outlet.
The indicators light up but the broadcast cannot heard.
1. Check that the switches and volume control of the connected
amplifier are set properly.
2. Check the leads between the tuner and amplifier.
The FM broadcast sound is disturbrd.
1. Change the antenna sirection.
2. If an external antenna is used, change the sirection of that antenna.
3. If the signal strength in your area is week, examine the condition of
the antenna.
AM broadcast reception is poor.
1. Change the direction of the AM loop antenna.
2. Change the orientation of the tunner.
3. Check whether noise is produced by other audio/video components,
electrical appliances or fluorescent lamps in your room.
4. Try using an external antenna.
Stations can be received by manual tuning, but not by auto
tuning.
1. Change the direction of the AM loop antenna or external antenna.
2. To improve the FM reception, try using a multi-element antenna.
3. To improve the AM reception, try using an external antenna.