Care and Maintenance, Trouble Shooting, Repairs

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 PM4000 will last indefinitely with proper care and cleaning. Never use scouring pads, steel wool, scouring powders or harsh chemical agents (e.g., lye solution), alcohol, 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 personnel have the knowledge 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 model and serial number of the equipment together with a full description of what you think is abnormal about the equipment’s behaviour.

TROUBLE SHOOTING

In case of trouble or abnormal operation of the unit, check the following before contacting service personnel. What may seem to be a serious malfunction is often the result of a simple operation mistake. If the trouble persists after checking the following, please contact your dealer or nearest Marantz distribu- tor.

The amplifier does not operate and the indicators do not light.

1.Check to see if the power cord is inserted properly into the power outlet.

The indicators light but the amplifier does not operate.

1.Check to see if the SELECTOR,SPEAKER switches and VOLUME control are properly set.

Sound is heard from only one of the speakers.

1.Check to see if the BALANCE control is properly set.

2.Switch the power of the unit to OFF, and change the connec- tions of the left and right speaker cords. If the sound from the same speaker is still not heard, its connection cord or the speaker itself may be defective.

Considerable hum noise is heard when the turntable is played.

1.Check to see if the plugs from the turntable are properly connected to the PHONO jacks.

2.Connect the grounding wire of the turntable to the GND terminal on the rear panel of this unit. If it has already been connected, try removing it.

3.Check to make sure that the phono cartridge is attached securely to the tonearm.

4.Unplug the power cord and plug it in again after inverting the orientation of the blades.

Remote control operation is not possible.

1.Is the remote control unit's transmitter pointed correctly at the remote sensor on the front of the Amplifier?

Or, is there an obstruction between the transmitter and the remote sensor?

2.Are the batteries in the remote control unit exhausted?

3.Is there another strong light (from a window, etc.) striking the Amplifier remote sensor?

4.Is an RCA cord connected to the "REMOTE CONTROL IN" jack on the Amplifier rear panel?

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