Service Manuals, User Guides, Schematic Diagrams or docs for : NAD C C-730 C-730

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 C 730                      SERVICE MANUAL
 STEREO
 RECEIVER
                                        NAD




           STEREO
                    C 730
RECEIVER
                                 SERVICE SAFETY PRECAUTIONS

1.     Replacing the fuses

CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY
WITH SAME TYPE OF FUSE.

Reference No                        Part Number                  Description
M151 *AH                            5120-0037-0                  FU T3.15A 250V UL/CSA 5X20MM
M152 *C                             5100-2530-1B                 T2.5A/250V IEC
M154 *AH                            5120-0052-0                  FUSE T1.6A 250V 5X20MM UL/CSA


NOTE:
  <*AH > : USA, CANADIAN MODEL ONLY.
  <*C > : EUROPEAN MODEL ONLY.

2.   Safety check out
(Only U.S.A. model)
Before returning the product to the customer, make leakage current or resistance measurements
to determine that exposed parts are acceptably insulated from the supply circuit.

     Parts marked with the symbol   are critical with regard to the risk of fire and electric shock.
     Replace only with parts recommended by the manufacturer.


CONTENTS
DESCRIPTION                                                                                                                 PAGE
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
REAR PANEL / FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
ADJUSTMENT POINTS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
INSTRUMENT SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
ALIGNMENT PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11
IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-14
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-19
IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-23
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24-33
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35-36
PACKING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37


                                                                 2
SPECIFICATIONS


POWER AMPLIFIER SECTION
1. Rated Distortion
   (THD 20Hz-20KHz, 30W, 8 ohm)                                           0.08%
   (THD 1KHz, 30W, 4 ohm)                                                 0.1%
2. Input Sensitivity (ref. 30W 8 ohm, 1KHz)                               350+/-30mV
3. S/N Ratio (A-wtd, 1K ohm, 500mV CD in, 1KHz)                           -85dB
4. Frequency Response (500mV CD in, 1W, 20Hz-20KHz)                       0

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