TURNTABLE C 552 - Turntable NAD - Free user manual and instructions

USER MANUAL TURNTABLE C 552 NAD

EXPLANATION OF GRAPHICAL SYMBOLS

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. PRECAUTIONS Read the Operating Instructions carefully and completely before operating the unit. Be sure to keep the Operating Instructions for future reference. All warnings and cautions in the Operating Instructions and on the unit should be strictly followed, as well as the safety suggestions below. INSTALLATION 1 Water and Moisture- Do not use this unit near water, such as near a bathtub, washbowl, swimming pool, or the like. 2 Heat - Do not use this unit near sources of heat, including heating vents, stoves, or other appliances that generate heat. It also should not be placed in temperatures less than 5°C (41°F) or greater then 35°C (95°F). 3 Mounting surface- Place the unit on a flat, even surface. 4 Ventilation - The unit should be situated with adequate space around it so that proper ventilation is assured. allow 10 cm (4 in.) clearance from the rear and the top of the unit, and 5 cm (2 in.) from each side. - Do not place on a bed, rug, or similar surface that may block the ventilation openings. Do not install the unit in a bookcase cabinet, or airtight rack where ventilation may be impeded. 5 Objects and liquid entry- Take care that objects or liquids do not get inside the unit through the ventilation openings. 6 Carts and stands- When placed or mounted on a stand or cart, the unit should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the unit and cart to overturn or fall. 7 Condensation- Moisture may form on the CD pickup lens when: The unit is moved from a cold spot to a warm spot. The heating system has just been turned on. The unit is used in a very humid room. The unit is cooled by an air conditioner. When this unit has condensation inside, it may not function normally. Should this occur, leave the unit for a few hours, then try to operate again. 8 Wall or ceiling mounting- The unit should not be mounted on a wall or ceiling, unless specified in the Operating Instructions. WARNING! TO REDUCE THE RISK OF FIRE OR ELECTRONIC SHOCK, DO NOT EXPOSE

THIS APPLIANCE TO RAIN OR MOISTURE

This product is manufactured to comply with the radio interference requirements of EEC DIRECTIVE 89/68/EEC and 73/23/EEC

IMPORTANT SAFETY INSTRUCTIONS

ELECTRIC POWER 1 Power Sources- Connect this unit only to power sources specified in the Operating Instructions, and as marked on the unit. 2 Polarization- As a safety feature, some units are equipped with polarized AC power plugs which can only be inserted one way into a power outlet. If it is difficult or impossible to insert the AC power plug into an outlet, turn the plug over and try again. If it still does not easily insert into the outlet, please call a qualified service technician to service or replace the outlet. To avoid defeating the safety feature of the polarized plug, do not force it into a power outlet. 3 AC power cord- When disconnecting the AC power cord, pull it out by the AC power plug. Do not pull the cord itself. Never handle the AC power plug with wet hands, as this could result in fire or shock. Power cords should be routed to avoid being severely bent, pinched, or walked upon. Pay particular attention to the cord from the unit to the power socket. Avoid overloading AC outlets and extension cords beyond their capacity, as this could result in fire or shock. 4 Extension cord- To help prevent electric shock, do not use a polarized AC power plug with an extension cord, receptacle, or other outlet unless the polarized plug can be completely inserted to prevent exposure of the blades of the plug. 5 When not in use - The primary method of isolating the turntable from the mains supply is to disconnect the mains plug. Ensure that the mains plug remains accessible at all times. Unplug the AC power cord from the AC outlet if the unit will not be used for several months or more. CAUTION Modifications or adjustments to this product, which are not expressly approved by the manufacturer, may void the user’s right or authority to operate this product. MAINTENANCE Clean the unit only as recommended in the Operating Instructions.

DAMAGE REQUIRING SERVICE

Have the unit serviced by a qualified service technician if The AC power plug has been damaged. Foreign objects or liquid have got inside the unit. The unit has been exposed to rain or water - The unit does not seem to operate normally. The unit exhibits a marked change in performance. The unit has been dropped, or the cabinet has been damaged DO NOT ATTEMPT TO SERVICE THE UNIT YOURSELF

OWNER’S RECORD

For your convenience, record the model number and serial number (you will find them on the rear of your set) in the space provided below. Please refer to them when you contact your dealer in case of difficulty. Model No. : Serial No. : This turntable has been engineered to give extremely good musical reproduction. Inherent in the design are several features that improve sound quality and focus the manufacturing costs where they are most needed. Example: Speed change is achieved by manually moving the drive belt from one pulley to another as shown below. ENGLISH FRANÇAIS 33rpm 45rpm The cost saving from the use of manual speed change allows a very expensive low vibration motor with an accuracy exceeding that of conventional designs to be employed. DEUTSCH

TIPS AND SUGGESTIONS

1 Try to mount the turntable on a rigid, level surface. A light shelf screwed to the wall or in an alcove would be ideal. Avoid mounting on hollow or heavy cabinets, or anything mounted on a wooden floor. 2 Try to keep the lid closed whilst playing records. This will prevent dust falling onto the records and make cleaning unnecessary. There may also be a sound improvement. 3 Don’t use a record cleaner that works as the record plays, or any cleaners that use water or fluids. Don’t touch the playing surface of records. Visible dust on the record surface is simply brushed aside by the stylus, and any that collects there can easily be blown away. 4 Try to leave the turntable running during a record playing session. Switch on before the start, and only switch off after the last record has finished. Changing records whilst the platter revolves is easier than it sounds! 5 DO NOT lift the centre hub from its bearing. The bearing is factory assembled with a film of thick lubricant. Disturbance of this can cause serious problems with speed variation and wear. 6 When switching on the turntable, especially at 45rpm, it is recommended to give the platter a quick spin clockwise as the ‘ON’ switch is pressed. This relieves strain on the motor and belt. 7 No maintenance should be necessary. If the turntable is working well, leave it alone. Some settling of the anti-vibration feet may cause the turntable to lean backwards slightly after a few months, but this is nothing to worry about. 8 Don’t use any polishes on the turntable or lid. To clean or dust, wipe gently with a soft cotton duster (slightly damp, only if necessary). 9 The tonearm is automatically earthed (or ground) through the arm cable screening. No other earthing should be necessary. 10 Save the packing, in case the turntable has to be transported in the future. 11 When the record reaches the end of one side, remember to lift the stylus off the surface of the record using the lift/lower mechanism. CARTRIDGE Your NAD C555i/C552 turntable comes with a factory fitted moving magnet cartridge. When following the setting-up instructions, please note that the optimum tracking weight is 1.7 grams for the cartridge. The bias adjustor should then be set to the same setting. ARM WIRING Blue = LH earth Green = RH earth Red = RH signal White = LH signal ENGLISH Replacement styli are available from your NAD dealer. Anti-vibration feet PORTUGUÊS Arm clip ITALIANO Lift/lower mechanism SVENSKA Plinth On/off switch

SETTING UP THE CARTRIDGE

With the cartridge fitted using the alignment protractor supplied and the wiring chart (shown left), next set the tracking force and thrust bias. First, slide off the plastic protection shroud from the cartridge - carefully! Unclip the arm from its Holder and make sure that the bias adjuster is set to zero, use the balance weight to ‘float’ the stylus about 1mm clear of a record, then dial inwards with the weight, (1 complete turn = 2g) until the cartridge’s tracking weight is achieved. Finally, set the bias adjuster to the same setting.

ENGLISH C 555i CARTRIDGE SPECIFICATION: GOLDRING ELECTRA TRANSDUCER CHARACTERISTICS Frequency response 20Hz - 20 kHz ±3dB Channel balance 2dB at 1 kHz Channel separation 20dB at 1 kHz Output level 5mV ±2dB at 1 kHz at 5cm/s Static compliance 16mm/N Equivalent tip mass 0.7mg Vertical tracking angle 26 degrees Stylus radius Elliptical 0.00072” x 0.0003” / 18µ x 7µ Stylus type replaceable FRANÇAIS DEUTSCH ELECTRICAL CHARACTERISTICS Load resistance Load capacitance Internal inductance Internal resistance 47k ohms

150 - 400pF

560mH 700 ohms MECHANICAL CHARACTERISTICS Cartridge weight Fixing centres Tracking weight TRANSDUCER CHARACTERISTICS Frequency response Channel balance Channel separation Output voltage at 1000 Hz, 5cm/sec. Tracking force range Tracking force, recommended Vertical tracking angle Stylus radius Stylus type 20-20.000 Hz ± 2 dB 2dB at 1 kHz 22dB at 1 kHz 15dB at 15kHz 4mV 1,5-2,0 g (15-20 mN) 1,75 g (17,5 mN) 20 degrees r/R 8/18 µm Elliptical 0.00072” x 0.0003” / 18µ x 8µ ELECTRICAL CHARACTERISTICS Recommended load resistance Recommended load capacitance Internal inductance Internal impedance, DC resistance 47k ohms

200 - 600pF

450mH 750 ohms MECHANICAL CHARACTERISTICS Cartridge weight

Drive system Motor Speeds Suspension system Belt drive High torque synchronous motor

33.3 and 45.1 rpm

3 energy absorbent synthetic rubber feet TONEARM Operation Length Effective mass Overhang Cable capacitance PHYSICAL SPECIFICATIONS Dimensions (WxHxD) with dust cover down Net Weight Shipping Weight

www.NADelectronics.com

© NAD ELECTRONICS INTERNATIONAL

A DIVISION OF LENBROOK INDUSTRIES LIMITED

All rights reserved. No part of this publication may be reproduced, stored or transmitted in any form without the written permission of NAD Electronics International C 555i/C 552 Manual Printed in UK