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

13、PANEL 1. MP INPUT 2. CD INPUT 3. TUNER INPUT 4. DISC INPUT 5. AUX INPUT 6. VIDEO INPUT 1. STANDBY 2. STANDBY LED 3. SOFT CLIPPING INDICATOR 4. REMOTE SENSOR 5. PHONES 6. MP SOCKET 7. INPUT SELECTOR 8. TONE DEFEAT 9. TONE CONTROLS 10. BALANCE 11. VOLUME 7. TAPE IN/OUT 8. SUB 1, SUB 2 9. PRE OUT 10. M

14、AIN IN 11. SOFT CLIPPING 12. +12V TRIGGER OUT 13. IR IN/OUT 14. SPEAKERS 15. POWER SWITCH 16. AC MAINS INPUT 1 111095678 234 14325678910121615141311 RadioFans.CN 收音机爱 好者资料库 7 DISASSEMBLY INSTRUCTIONS 1. Remove machine screws M4.0 x 8.0 (x 4pcs) from the side panels. Remove tapping screw 3.0 x 8.0 (x

15、 3pcs) from the back panel. Refer to Figure No. 1. 2. Pull both sides of the TOP COVER slightly outwards and tilt approx. 35 and then remove in the direction as indicated. Refer to Figure No. 2. Figure No. 1 Figure No. 2 RadioFans.CN 收音机爱 好者资料库 8 WIRING DIAGRAM Check these cables for damage caused b

16、y chassis lip. 90SC326PREDVR-902100090SC326PREDVR-9021000 RadioFans.CN 收音机爱 好者资料库 9 WIRING DIAGRAM PARTS LIST Item Database Part Number Description Remark 1 17-012-4444-90 CABLE ASSY 3 WAYS AWG18 3.96P PIN 2 VOID PSU BD-J605, UL1672 L=170mm (B/BR) (RoHS) J606 2 17-012-4422-90 CABLE ASSY 9 WAYS AWG=2

17、6 2.5P UL1007 PSU BD-J601A L=240mm (RoHS) 3 17-012-2956-90 Cable assy 1 way AWG18 UL1007 BLACK L=100mm PHONE BD-J510 W/RING TERMINAL(RoHS) 4 17-012-4536-90 CABLE ASSY 2 WAYS AWG26 2.5P UL2468 L=700 PHONE BD- (RoHS) J508A 5 17-012-4424-90 CABLE ASSY 7 WAYS AWG=28 2.0P UL1007 L=350mm KEY BD-J506A (RoH

18、S) 6 17-012-4425-90 CABLE ASSY 6 WAYS AWG=28 2.0P UL1007 L=410mm KEY BD-J507A (RoHS) 7 17-012-4426-90 CABLE ASSY 10 WAYS AWG=28 2.0P UL1007 KEY BD-J501A L=420mm (RoHS) 8 17-012-4427-90 CABLE ASSY 2 WAYS AWG=26 2.5P UL1007 L=80mm KEY BD-J504A (RoHS) 9 17-012-4423-90 CABLE ASSY 15 WAYS AWG=26 2.5P UL1

19、007/1533 VOL BD-J201A L=80mm (RoHS) 10 17-012-4420-90 CABLE ASSY 2 WAYS AWG=16 3.96P WHI/RED MAIN BD-J13/ UL1015 L=100mm (RoHS) J16, J14/J15 11 17-012-4428-90 CABLE ASSY 5 WAY AWG26 2.5P UL1007 L=250mm MAIN BD-J101A (RoHS) 12 17-012-4483-90 CABLE ASSY 1 WAY AWG14 UL1015 L=80mm BLACK MAIN BD-J104, W/

20、 RING TERMINAL (RoHS) J204 13 17-012-4484-90 CABLE ASSY 1 WAY AWG14 UL1015 L=110mm WHITE MAIN BD-J103 W/ RING TERMINAL (RoHS) 14 17-012-4485-90 CABLE ASSY 1 WAY AWG14 UL1015 L=110mm RED MAIN BD-J203 W/ RING TERMINAL (RoHS) 15 17-012-4521-90 CABLE ASSY 3 WAYS AWG16 3.96P BLACK UL1015 MAIN BD-J7A/ L=2

21、00/120/220mm (RoHS) P6/J6A 16 17-012-4529-90 CABLE ASSY 2 WAYS AWG26x1C 2.5P UL1533 L=90 MAIN BD- (RoHS) J306A/B 17 17-012-4530-90 CABLE ASSY 2 WAYS AWG26x1C 2.5P UL1533 L=110 MAIN BD- (RoHS) J106A/B 18 17-012-4531-90 CABLE ASSY 2 WAYS AWG26x1C 2.5P UL1533 L=130 MAIN BD- (RoHS) J105A/B 19 17-012-453

22、2-90 CABLE ASSY 2 WAYS AWG26x1C 2.5P UL1533 L=180 MAIN BD- (RoHS) J305A/B RadioFans.CN 收音机爱 好者资料库 10 BLOCK DIAGRAM RadioFans.CN 收音机爱 好者资料库 11 ADJUSTMENT POINT DIAGRAM A. Idle Current adjustment 1. Turn on the unit without any input for 15 minutes 2. For left channel, adjust VR103 Voltage across TP1

23、5, 6, 27, 35, 46, 5, 6, 27, 35, 46, & 47 RadioFans.CN 收音机爱 好者资料库 39 PACKING DIAGRAM & PARTS LIST ITEM PART NO. DESCRIPTION QTY 1 24-003-0127-90 POLYBAG MAUNAL (RoHS) 1 1 24-004-1936-92 CARD WARRANTY NAD MODELS R.1 (RoHS) 1 1 24-004-2385-92 C326BEE OWNERS MANUAL R.1 (RoHS) 1 2 24-003-0119-90 POLYBAG

24、CORD (RoHS) 1 2 17-004-0026-90 AC Cord 110V 2 PINS 125V/13A SJT AWG18/3C UL/CSA 1 L=2M (RoHS) FOR AH VERSION 17-004-0027-90 AC CORD CE 2 PINS 16A 250V LF L=2M H05VV-F 2G 1 0.75 BLACK (RoHS) FOR C, CT VERSION 3 24-006-0992-90 POLYFOAM ENDCAP C326BEE (RoHS) 2 4 24-003-0119-90 POLYBAG MAIN UNIT (RoHS) 1 4 24-003-0166-90 PROTECTIVE COVER (RoHS) 1 4 40-001-0108-90 DESSICANT BAG 20g 1 5 28-008-0010-90 REMOTE CONTROLLER NAD SR 8 (RoHS) 1 6 25-007-0024-90 BATTERY AA 1.5V R6P AA (RoHS) 2 7 24-001-0729-90 MASTER CARTON BOX C326BEE (RoHS) 1 RadioFans.CN 收音机爱 好者资料库