NAD-C326BEE-int-sm维修电路原理图.pdf
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1、NAD SERVICE MANUALC 326BEE C 326BEE Stereo Integrated Amplifi er Stereo Integrated Amplifi er DRAFT DATE: June 2011RadioFans.CN 收音机爱 好者资料库 2 SAFETY INFORMATION 1.5A RadioFans.CN 收音机爱 好者资料库 3 SERVICE SAFETY PRECAUTIONS 1. Replacing the fuses CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE
2、REPLACE ONLY WITH SAME TYPE OF FUSE. Reference Designator Database Part Number Description F601*AH 20-001-0086-90 FUSE 3.15A 250V TIME LAG LBC 5x20mm TSD UL/CSA/VDE/SEMKO F601*C,CT 20-001-0076-90 FUSE 1.6A 250V TIME LAG LBC 5X20mm TSD UL/CSA/VDE/ SEMKO (RoHS) NOTE: : USA, CANADIAN MODEL ONLY. : EURO
3、PEAN 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 supply circuit. Parts marked with the symbol are critical with regard to the risk of fi
4、 re and electric shock. CONTENTS DESCRIPTION PAGE SPECIFICATIONS .4 - 5 REAR PANEL / FRONT PANEL VIEW .6 DISASSEMBLY INSTRUCTIONS .7 WIRING DIAGRAM . .8 - 9 BLOCK DIAGRAM.10 ADJUSTMENT POINTS DIAGRAM / AMPLIFIER ADJUSTMENT .11 PCB LAYOUT .12 - 15 SCHEMATIC DIAGRAM .16 - 19 ELECTRICAL PARTS LIST .20
5、- 31 IC BLOCK DIAGRAM .32 - 34 EXPLODED VIEW .35 - 36 EXPLODED VIEW PARTS LIST .37 - 38 PACKING DIAGRAM .39 RadioFans.CN 收音机爱 好者资料库 4 SPECIFICATIONS PRE AMPLIFIER SECTION LINE LEVEL INPUT, PRE-OUT THD (2 Vin 2 Vout, CCIF IMD, DIM 100) 0.004 % (ref. 20 Hz 20 kHz) Signal/Noise ratio IHF 100 dB (A-weig
6、hted, ref. 500 mV) 108 dB (A-weighted, ref. 2V, Volume max.) 92 dB (A-weighted, ref. 100 mV in 100 mV out - unity gain) Channel separation - 1 kHz 80 dB 10 kHz 70 dB Input impedance (R and C) 100 k+ 320 pF Maximum input signal 8 Vrms (ref. 0.1 THD) Output impedance - Pre out 75 Tape out Source Z + 1
7、 k Input sensitivity 159 mV (ref. 500 mV out) Frequency response 0.1 dB (ref. 20 Hz - 20 kHz, Tone defeat ON) 0.5 dB (ref. 20 Hz - 20 kHz, Tone defeat OFF) Maximum voltage output - IHF load 10 V (ref. 0.03% THD) 600 ohms load 10 V (ref. 0.03% THD) TONE CONTROLS Treble 5 dB at 10 kHz Bass 8 dB at 100
8、 Hz POWER AMPLIFIER SECTION MAIN IN, SPEAKER OUT Continuous output power into 8 and 4 (Stereo) 50 W (ref. rated THD, 20 Hz-20 kHz, both channels driven) Rated THD (CCIF IMD, DIM 100) 65 W (ref. 1 kHz 1% THD) IHF dynamic power - 8 100 W 4 150 W 2 200 W Peak output current 20 A (ref. 1 , 1 ms) Signal/
9、Noise ratio 100 dB (A-weighted, ref. 1 W) 117 dB (A-weighted, ref. 150 W) Damping factor 100 (ref. 8 , 50 Hz and 1 kHz) Frequency response 0.1 dB (ref. 20 Hz - 20 kHz) 3 Hz 70 kHz (ref. -3 dB) Input impedance 20 k + 1 nF Input sensitivity 630 mV (ref. rated power) Voltage gain 29 dB Headphone output
10、 impedance 68 Channel separation - 1 kHz 80 dB 10 kHz 70 dB TRIGGER OUT Output resistance 100 Output current 50 mA Output voltage +12 V OVERALL SPECIFICATIONS CD IN, SPEAKER OUT THD (250 mW to rated power, CCIF IMD, DIM 100) 94 dB (A-weighted, ref. 1 W) 110 dB (A-weighted, ref. 50 W, volume set for
11、2V RadioFans.CN 收音机爱 好者资料库 5 Frequency response 0.2 dB (ref. 20 Hz - 20 kHz, Tone Defeat ON) 10 Hz 65 kHz (ref. -3 dB) Channel separation - 1 kHz 80 dB 10 kHz 70 dB POWER CONSUMPTION Rated power 290 W (ref. 230V AC 50 Hz; 120V AC 60 Hz) Standby power 1 W Idle power 35W PHYSICAL SPECIFICATIONS Dimens
12、ions (Width x Height x Depth) 435 x 100 x 286 mm (Net) 435 x 116 x 332 mm (Gross*) * - Gross dimensions include feet, volume knob and extended speaker terminals. Net Weight 7.1 Kg (15.62 lbs) Shipping Weight 9.1 Kg (20.02 lbs) RadioFans.CN 收音机爱 好者资料库 6 FRONT PANEL REAR PANEL / FRONT PANEL VIEW REAR
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