Nad-C-325-BEE-Schematic(1) 电路图 维修手册.pdf
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1、NAD SERVICE MANUAL C 325BEE STEREO AMPLIFIER C 325BEE STEREO AMPLIFIER 1 RadioFans.CN 收音机爱 好者资料库 downloaded from http:/receiverfaq.ru/ +46V RED Ipod SOCKET BOARD -46V WHITE CB11 P5-GND +46V RED CB33 -46V WHITE CB52 CB53 CB58 HEADPHONE BOARD STANDBY BOARD CZ45 POWER BOARD CZ72 IR BOARD CB54 Q115 P4-R
2、 P3-R CB55 CB57 CB59 CB56 CB51 OUT MODULE BOARD CB73 CB74 S72 S71S73S74 S76 S75 CZ73 CB72 CZ71 S77 CZ72_1 CB61CB61 CZ74 CZ75 KEY BOARD AMP-SMD-R BOARD IN MODULE BOARD AMP-SMD-L BOARD CB32CB21 CZ11CZ21 CB34 CB31 CB35 MAIN BOARD T401(TRANSFORMER) P1-L CB47 Q114 Q214 P2-L Q215 CB45 POWER SWITCH WIRING
3、DIAGRAM AC POWER PLUG AC OUTLET 8 01-32560-02 01-32560-01 RadioFans.CN 收音机爱 好者资料库 TAPE1 OUT L INPUT SELECTION CIRCUIT (BY RELAY) DISC L DISC R CD R VIDEO R AUX R TAPE1 IN R TAPE1 IN L AUX L VIDEO L CD L IC 75 CD4094 MCU PREAPM MODULE AMP CIRCUIT IN? BASS RT31 RT32 RT34 TREBLE BALANCE SW31 TONE DEFEA
4、T RT33 VOLUME MUTE MUTE Q31 PRE-OUT L Q32 PRE-OUT R MAIN IN R MAIN IN L SOFT CLIPPING CONTROL CIRCUIT S41 POWER AMP CIRCUIT L CIRCUIT R POWER AMP PROTECTION CIRCUIT (IC44,UPC1237HA) RL12/2 ISC CIRCUIT (IC43,TL082D) TRIGI-V MIRROR SOURCE SCR CIRCUIT (1,2,3) 4 5 VOL- VOL+ VOLUME CONTROL CIRCUIT (REMOT
5、E) MUTE CIRUIT JK41 R467 POSISTOR (80 DEGREE C) R439 POSISTOR (90 DEGREE C) BLOCK DIAGRAM HEADPHONE TUNER R TUNER L CONTROL CURRENT CIRCUIT CONTROL CONTROL MP R MP L TAPE2 IN L TAPE2 IN R TAPE2 OUT R TAPE2 OUT L TAPE1 OUT R Relay Switchs IC74 CD4094 MCU (1,3) 92 (4,5,6,7 11,12,13,14) PREAPM MODULE A
6、MP CIRCUIT OUT? Speaker R Speaker L F1AA012V 9 01-32560-02 01-32560-01 RadioFans.CN 收音机爱 好者资料库 2 3 1 IC72 IS1U60L +5V +5V 13 2 IC76 TCM810MEND IR OUT CIRCUIT IR IN CIRCUIT 10k 10K 2K2 Q717 +5V Sandby control line 18V Power Supply Circuit 27pF MICROPROCESSOR CONNECTION DIAGRAM +5V RST/VPP 1 P3.0(RXD)
7、 2 P3.1(TXD) 3 XTAL2 4 XTAL1 5 P3.2(INTO) 6 P3.3(INT1) 7 P3.4 8 P3.5 9 GND 10 P3.7 11 (AIN0)P1.0 12 (AIN1)P1.1 13 P1.2 14 P1.2 15 P1.4 16 P1.5 17 P1.6 18 P1.7 19 VCC 20 IC73 AT89C4051 NC 1 NC 2 NC 3 Vss 4 SDA 5 SCL 6 NC 7 Vcc 8 IC71 24C01 C79 C710 27pF Y71 11.0592M Q1 4 Q2 5 Q3 6 Q4 7 Q5 14 Q6 13 Q7
8、 12 Q8 11 QS 9 QS 10 STR 1 D 2 CLK 3 OE 15 VCC 16 VEE 8 IC74 4094 Q1 4 Q2 5 Q3 6 Q4 7 Q5 14 Q6 13 Q7 12 Q8 11 QS 9 QS 10 STR 1 D 2 CLK 3 OE 15 VCC 16 VEE 8 IC75 4094 C TU TA2 TA1 DI IP VI AU TO RELAY CONTROL CIRCUITTO VOL CONTROL CIRCUIT PHONE71 Ipod IN Input selection Keys +5V +5V 10k +5V IR Flash
9、Mute Flash Remote Mute Flash 10 C61 220p R61 220 R63 1M Q61 2SK170 R67 1K R69 430 2% Q63 A970 Q67 D667 C63 22p R611 1K Q64 B647 R613 10K D61 1N4148 D62 1N4148 R615 33 C65 0.1u 20% C66 0.1u 20% C69 100p R618 10 R619 10 R620 10 1 2 3 4 5 6 7 8 9 CZ61 CON9 R621 30K C611 GND +18V -18V LOUT ROUT RIN- RIN
10、+ LIN+ LIN- PREAMP IN/OUT MODULE BOARD Vm1.2 Note:C611 is 43pF ON IN MODULE 75pF ON OUT MODULE C62 220p R62 220 R64 1M Q62 2SK170 R68 1K R610 430 2% Q65 A970 Q68 D667 C64 22p R612 1K Q66 B647 R614 10K D63 1N4148 D64 1N4148 R616 33 C67 0.1u 20% C68 0.1u 20% C610 100p R617 10 RCA31A DISC RCA31C CD RCA
11、32A VIDEO RCA32C AUX RCA33A TUNER RCA33C TAPE2 RCA34C REC1 RCA34A TAPE1 RCA33E REC2 R31 470 R33 470 R35 470 C31 100p C33 100p C35 100p R37 470 R39 470 R311 470 C37 100p C39 100p C311 100p R313 470 R315 470 R317 470 C313 100p C315 100p C317 100p C319 0.1u 10% C324 47u/25 C323 47u/25 C325 47u/25 R321
12、3K3 MF R323 750 MF R319 N.I. R325 390 MF R327 180 MF C327 22n 5% C329 0.1u 5% R329 1K5 MF R331 390 MF C331 0.22u C333 1u,63V,5% C335 N.I. 1 2 3 SW31A 4 5 6 SW31B RCA35A L PRE-OUT Q31 K363 C343 220p R389 10M C339 1u/16 RL31B RL32B RL33B RL34B RL35B RL36B RL37B RL38B RCA31B DISC RCA31D CD RCA32B VIDEO
13、 RCA32D AUX RCA33B TUNER RCA33D TAPE2 RCA34D REC1 RCA34B TAPE1 RCA33F REC2 R32 470 R34 470 R36 470 C32 100p C34 100p C36 100p R38 470 R310 470 R312 470 C38 100p C310 100p C312 100p R314 470 R316 470 R318 470 C314 100p C316 100p C318 100p RL31A RL32A RL33A RL34A RL35A RL36A RL37A RL38A TONE DEFEAT SW
14、 R333 4.7K R335 68 C341 47u/25 C320 0.1u 10% C326 47u/25 R322 3K3 MF R324 750 MF R320 N.I. R326 390 MF R328 180 MF C328 22n 5% C330 0.1u 5% R330 1K5 MF R332 390 MF C332 0.22u 5% C334 1u,63V,5% C336 N.I. RCA35B R PRE-OUT Q32 K363 C344220p R390 10M C340 1u/16 TONE DEFEAT SW R334 4.7K R336 68 C342 47u/
15、25 R407 1K R402 10K R404 10K R403 1K R405 1K R406 1K C417 4u7/25V C418 4u7/25V RL31CRL32CRL33CRL34CRL35CRL36CRL37CRL38C D37 1N4148 D38 1N4148 D39 1N4148 D310 1N4148 D311 1N4148 D312 1N4148 D313 1N4148 VOLUME CONROL BY MOTOR BY MOTOR R348 100K R347 100K R341 1M R342 1M R343 1M R339 1M R338 1M R337 1M
16、 R346 220K R345 220K R349 1M R351 1M R353 1M R355 1M R357 1M R350 1M R352 1M R354 1M R356 1M R358 1M 1 2 3 4 5 6 7 8 9 CB34 1 2 3 4 5 6 7 8 9 10 CB31 1 2 3 4 5 6 7 8 9 CB32 LOW NOISE AMP 1 2 3 4 5 6 7 8 9 CB33 OUT MODULE MF MF ON OFF OFF ON TO CZ72 TO CZ71 L-CH INPUTS R-CH INPUTS VOLUME POT VOLUME P
17、OT BALANCE POTBALANCE POT BASS POT BASS POT TREBLE POTTREBLE POT Soft Cliping CD VIDEO TUNER AUX TAP2 TAP1 DISC REMOTE MUTE Protection VOL- VOL+ +12V IRIN IROUT 63V 63V 63V 63V 5%,63V +5V DISC CD VIDEO AUX TUNER TAP2 TAP1 +12V -18V +18V +5V Soft Cliping Protection -18V +18V +18V -18V +5V +18V -18V C
18、337 0.1U C345 0.1uF C338 0.1u C346 0.1uF C321 0.1U C322 0.1U Standby Standby C325BEE TONE CONTROL CIR. C303 220p C302 220p C301 10uF/50V Q411 A1015 R436 56K R435 390k R489 100K R457 220K R451 330K D423 1N4148 R448 100K C434 22n/63V +18V -46V +5V LOW NOISE AMP IN MODULE -46V-46V +12V PHONE1A IR OUT P
19、HONE1B IR IN PHONE2 +12V Trigger R2 10 C3 0.1uF RI1 10K QI1 2SC1815 RI2 1K QI2 2SA1015 RI3 33 +5V +5V RI610K RI4 4.7K C362 10n RI510K VR302 100 R386 1.8 R384 560 1% VR301 100 R385 1.8 R383 560 1% C350 N.I. R388 20k C349 N.I. R387 20K C325BEE RELAY CONTROL CIR. +12V+12V RT31A 10KA RT31B 10KA RT32B 10
20、KA RT32A 10KA RT34A 20K MN RT34B 20K MN Q402 C1815 Q404 C1815 Q401 A1015 Q403 A1015 D314 N.I. D315 1N4148 R391 560 1% R392 560 1% R361 N.I. R362 N.I. R363 51K R364 51K 12V TRIG RT33A 20KB RT33B 20KB -+M RT33C 20KB Ipod Ipod-R1 2 3 CB35 CON3 RL39C D316 1N4148 Ipod RL39B RL39A R393 470 R394 1M R395 1M
21、 R396 470 C305 100P C304 100P Ipod-L VR304 30K VR303 30K RI7 330,5% C363 100pF C364 100pF PCB-6/7:OUT/IN MODULE BOARD Vm1.0 SCHEMATICS DIAGRAM PREAMP CIRCUIT Vm1.2 PCB-1:MAIN BOARD Vm2.0 16 Over Heat Protection: It shuts down the unit when the temperature on the heatsink is over 90C degrees. It also
22、 shuts down the unit when the unit enters the standby mode. ISC Circuit: It switch the power supply to lower voltage when the load impedance is low, or the temperature on the heatsink is over 80C degree C219 22n 10% 63V RCA35D MAIN-IN R-CH R156 470K R11 470 C11 10u/16V R15 22K R14 100 C15 220uF/63V
23、C16 220uF/63V Q110 KSA1220 Q111 KSC2690 R124 3.3/0.5W FP R125 3.3/0.5W R128 330/0.5W FP R129 330/0.5W C110 47u/25V C111 47u/25V R126 3K3/2W FP R127 3K3/2W FP R130 82/1W FS R131 82/1W FS R142 22,MF,5% R143 22,MF,5% R136 10 R137 10 Q112 KSC2690 Q115 2SC5200 Q114 2SA1943 Q113 KSA1220 R144 0.068/3W CE R
24、145 0.068/3W CE R139 412 L11 0.5uH R150 1/1W FP R151 10/1W FS C118 0.1u 10% 63V C115 0.1u C114 0.1u R21 470 R12 220K R22 220K C112 470p,100V,20% C113 470p,100V,20% R147 1K Q11 C1815 Q12/1 A1015 R152 22K R12/1 6K8 R148 15K C120 22n 10% D17 1N4148 RCA35C MAIN-IN L-CH R146 1K8,1W,1%,MF Q116 KSC2690 R13
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