Marantz PROFESSIONAL Series - Introduction; Caution Notes

INTRODUCTION
This service manual is intended for use by authorized warranty stations. The manual contains service information for the
Marantz Model 510 Series Stereo Power Amplifier manufactured by the Marantz Company, a subsidiary of Superscope
Incorporated, Chatsworth, California 91311.
Adjustment,
maintenance,
and
troubleshooting
information
listed
herein
should
be
attempted
only
by
the
experienced
technician,
one
knowledgeable
in
solid
state
amplifier
operation
and
the
use
of
test
equipment.
All
instructions
should
be
read
carefully
and
understood
fully
before
proceeding
with
any
service.
Symptoms and their remedies listed in the trouble analysis section of this service manual are those which are peculiar to the
types that may occur in the Model 510 Series. In the event that field problems arise in the Model 510 Series all servicing
facilities will be notified through service bulletins supplementary to this manual. To improve this service, the Marantz
Company requests that any field problems and suggestions for improvement be sent to the Technical Services Manager at
our corporate location.
CAUTION NOTES :
1. Do not discharge capacitors in the unit with a screwdriver blade. The filter capacitors are capable of storing a sizeable
charge and the current delivered through a short-circuit may be sufficient to cause personal injury and damage to equipment.
Use a 100 W light bulb to discharge filter capacitors.
2. All adjustments should be made using screwdrivers with insulated blades and handles to avoid the possibility of shorting
adjacent components.
3. Never connect the loudspeaker terminals of one channel directly in parallel with those of any other, as the output
devices will be severely damaged. Such damage is not covered under warranty.
4. Because the amplifier is cooled by fresh air which is drawn in through either the perforated top cover or sides and
forced out the rear panel by means of an exhaust fan, allow a minimum of one inch of free space for the topand sides and
four inches to the rear of the unit. Do not allow air to recirculate.
5. If the amplifier is to be mounted or stored in an equipment rack, make certain that the rear chassis is adequately
supported,