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1-4

SPECIFICATIONS

GENERAL

TURNTABLE

Drive system

Belt drive

Motor

High torque synchronous motor

Speed

33.3 and 45.1 rpm

Suspension system

3 energy absorbent synthetic rubber feet

TONEARM

Operation

Manual

Length

289 mm total length; 244 mm pivot to 

stylus

Effective mass

9 g

Overhang

19.1 mm

Cable capacitance

150-400 pF

CARTRIDGE SPECIFICATION: ORTOFON OM5E

TRANSDUCER CHARACTERISTICS

Frequency response

±2 dB (20 Hz – 20 kHz)

Channel balance

2 dB at 1 kHz

Channel separation

22 dB at 1 kHz, 15 dB at 15 kHz

Output voltage 

4 mV at 1 kHz, 5cm/sec.

Tracking force range

1.5 - 2.0 g (15-20 mN)

Tracking force recommended

1.75 g (17.5 mN)

Vertical tracking angle

20 degrees

Stylus radius

Elliptical 0.00072 x 0.0003 inch; 18µ x 8µ

Stylus type

r/R 8/18µ

ELECTRICAL CHARACTERISTICS

Recommended load resistance

47 kohms

Recommended load capacitance

200 – 600 pF

Internal inductance

450 mH 

Internal impedance, DC resistance

750 ohms

MECHANICAL CHARACTERISTICS

Cartridge weight

5 g

Tracking weight

1.5 - 2.0 g (15-20 mN)

Replacement stylus unit

Stylus 5E

PHYSICAL SPECIFICATIONS

Unit Dimension (W x H x D) with dust 

cover down 

447 x 115 x 360 mm

17 

³

/

 x 4 9/

₁₆

 x 14 

³

/

₁₆

 inches

Net Weight

4 kg (8.8 lbs)

Shipping Weight 

7 kg (15.4 lbs)

Specifications are subject to change without notice. 
For updated documentation and features, please log onto 

 www.NADelectronics.com for the latest information about the C  556.

Содержание C 556

Страница 1: ...SERVICE MANUAL C556 TURNTABLE C556 TURNTABLE ...

Страница 2: ...1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 2 SERVICING PRECAUTIONS 1 3 General Servicing Precautions Insulation Checking Prodedure Electrostatically Sensitive Devices SPECIFICATIONS 1 4 ...

Страница 3: ...AYS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERA TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC TURE TUBE OR HIGH VOLTAGE SUPPLY AND UNDER CERTAIN CIR CUMSTANCES MAY PRODUCE RADIATION IN EXCESS OF DESIR ABLE LEVELS 2 ONLY FACTORY SPECIFIED C R T ANODE CONNECTORS MUST BE USED DEGAUSSING SHIELDS ALSO SERVE AS X RAY SHIELD...

Страница 4: ...l panels Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be u...

Страница 5: ...Tracking force recommended 1 75 g 17 5 mN Vertical tracking angle 20 degrees Stylus radius Elliptical 0 00072 x 0 0003 inch 18µ x 8µ Stylus type r R 8 18µ ELECTRICAL CHARACTERISTICS Recommended load resistance 47 kohms Recommended load capacitance 200 600 pF Internal inductance 450 mH Internal impedance DC resistance 750 ohms MECHANICAL CHARACTERISTICS Cartridge weight 5 g Tracking weight 1 5 2 0 ...

Страница 6: ...2 1 SECTION 2 CABINET MAIN CHASSIS CONTENTS 1 PARTS VIEWS 2 3 Top and Side Parts View 2 2 Top and Side Parts View List 2 3 2 ADDENDUM 2 4 Service Tips 2 4 ...

Страница 7: ...11 11 7 3 2 9 Spindle 2 2 6 7 10 5 5 Counter Weight Bias adjustment Lift lower Mechanism Arm clip TOP AND SIDE PARTS VIEW 2 2 PARTS VIEWS ...

Страница 8: ...artridge 4 C555 Lid Clear Turntable Lid clear colour 5 C555 Plinth C555 C556 Plinth including S witch 6 C555 Foot C55x Foot including S crew set of three 553 Foot 7 C555 plater mat C55x Turntable Mat 533 Plater Mat 8 533 Audio Cable AS Y C555 C555i C552 C556 533 Phonograph cable 9 533 Drive Belt 533 C555 C555i C552 C556 Belt 10 C556 Platter C556 Phenolic R esin Platter 11 C555 Lid Hinge S et 533 C...

Страница 9: ...ply the solvent to a piece of lint free cloth or kitchen paper Wipe both spindle and the ball bearing with same and replace 4 Fit the hub back into the bearing bush and spin to check that it is running freely If its not return complete assembly to NAD 5 If all is well remove hub from bearing bush then tilt the bearing bush and place two drops of Comma Hypoid EP80 Castrol EPX80w 90 or Shell Spirax ...

Страница 10: ...ewdriver or bit these cosmetic screws will be damaged Please refer to 4 Place the tonearm back on to the Arm clip and lock it in place 5 Carefully remove the tonearm assembly The replacement tonearm assembly ships with the RCA cables attached 6 Carefully install the new tonearm assembly lining up the screw hole precisely 7 Follow the Steps 2 and 4 replacing the screws 8 Slide back on the counterwe...

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