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

25、8 430 Q47 A1015 Q45 A1015 Q46 C1815 R417 100 R419 100 R418 100 R416 100 C415 10u/25V C416 10u/25V R422 1.3K R423 1.3K R424 1.3K R425 1.3K R420 36K R421 36K D411 20V D410 20V 1 2 3 S41A 4 5 6 S41B ON OFF TP4 TP3 FS FS POWER AMP CIR. R +46V -46V +46V -46V D11 4.7V D12 4.7V R108 39,MF,5% R107 39,MF,5%

26、Q48 C1815 C17 0.1uF/63V C12/1 47uF/25V VR12 200 C119 22n 10% 63V C21 10u/16V R25 22K R24 100 C25 220uF/63V C26 220uF/63V Q210 KSA1220 Q211 KSC2690 R224 3.3/0.5W FP R225 3.3/0.5W R228 330/0.5W FP R229 330/0.5W C210 47u/25V C211 47u/25V R226 3K3/2W R227 3K3/2W R230 82/1W FS R231 82/1W FS R242 22,MF,5%

27、 R243 22,MF,5% R236 10 R237 10 Q212 KSC2690 Q215 2SC5200 Q214 2SA1943 Q213 KSA1220 R244 0.068/3W CE R245 0.068/3W CE R239 412 L21 0.5uH R250 1/1W FP R251 10/1W FS C218 0.1u 10% 63v C215 0.1u C214 0.1u 10% 63V TP1 C212 470p,100V,20% C213 470p,100V,20% R247 1K R248 15K R252 22K Q21 C1815 C220 22n 10%

28、D27 1N4148 R246 1K8,1W,1%,MFQ216 KSC2690 R238 430 TP2 FP FS FS 63V +46V -46V D21 4.7V D22 4.7V R207 39,MF,5% R208 39,MF,5% C27 0.1uF/63V R256 470K R257 470K C222 1uF,63V,5% C221 1uF,63V,5% R258 2.2k -18V +18V VR22 200 POWER AMP CIR. L SUPPLY CIR. R12/2 22K O/P RELAY L OUT R OUT D412 1N4148 BINDING P

29、OSTS R446 56K R445 56K C422 330u/16V C421 4u7/50V C432 0.22u R443 150 1/2W FS R441 4.7K R442 56K C420 100u/16V PROTECTION CIR. 0V 0V +3.25V +2.16V 0V 0V +2.0V +18V +46V R478 100K 1 2 3IC43A TL082D R480 3K9 R482 4K7 R479 100K C428 10u/25V C425 10u/25V R470 10K R471 10K D418 1N4148 D417 1N4148 R477 47

30、K R483 270K R473 43K R472 470K C426 10u/25V C429 10u/25V R488 18K R487 18K D420 1N4148 D419 1N4148 R474 1K C430 10u/25V R476 1K C431 10u/25V R490 100K R491 100K 4 5 6 7 8 IC43B TL082D +18V -18V 1 2 3 4 5 6 7 CB47 7PIN -37V +37V 1 2 3 4 5 CB45 R453 220/2W FPR452 220/2W FP R438 22K R439 T0=90 degree C

31、 Q412 C1815 POSISTOR +18V 1 2 3 4 5 6 7 8 IC44 UPC1237HA 12 34 56 RL12/1 F1AA012V 1 2 3 4 SPKOUT D42 1N4148 D43 1N4148 R437 47K STANDBY R440 2K2 +18V ISC CIRCUIT +12V Protection Soft Cliping +5V +18V -18V+5V +18V -18V +12V Standby STANDBY R45 33/0.5W FS R41 680 R43 680 * R47 680 C43 220u/63V C413 22

32、0u/35V Q41 2SC2690 C45 22p R49 680 R411 680 R413 680 D49 18V C47 47u/25V C49 47u/25V R414 2K2 R46 33 / 0.5W FS R42 680 R44 680 R48 680 C44 220u/63V C414 220u/35V Q43 C1815 C46 22p R410 680 C48 10u/25V C410 47u/25V R412 2K Q42 2SA1220 Q44 A1015 C411 0.1uF C412 0.1u R428 2K2 R429 5K1 MF MF +18V -18V R

33、401 4K7 D403 1N4148 STANDBY C443 0.1uF C41 0.1uF I-V AC DET. ISC TRIG -46V -46V Q421 C1815 R469 10K R468 22K R467 T0=80 degree C D428 1N4148 +18V SOFT CLIPING CIR. 7 6 5 48 IC42B TL082D -46V+46V P3-RP4-RP5-GND R493 180k VR3 10K +18V R133 3K3/2W R132 3K3/2W FP R232 3K3/2W FP R233 3K3/2W FP R260 1K,5%

34、 R261 1K,5% -46V+46V P1-LP2-L R157 470K C122 1uF,63V,5% C121 1uF,63V,5% R158 2.2k -18V +18V 1 2 3 48 IC41A TL082D R160 1K,5% R161 1K,5% D430 DB104 C444 4700uF/16V C445 100uF 3 1 2 IC45 AMS1117-5.0 +5V R427 22/1W FP Q413 KSC2690 Q414 C1815 +37V +12V C419 10uF Q422 D667 Q423 C2240 R494 12 12V TRIG C44

35、6 10uF R495 510 1 2 3 4 5 6 7 8 CZ11 CON8 1 2 3 4 5 6 7 8 CZ21 CON8 +18V +18V -18V -18V D101 1N4148 D102 1N4148 D103 1N4148 C123 0.1uF R162 1K R163 1K R164 10K R165 10K R167 1K R166 5K6 R168 1K D201 1N4148 D202 1N4148 D203 1N4148 C223 0.1uF R262 1K R263 1K R264 10K R265 10K R267 1K R266 5K6 R268 1K

36、Q217 2SA970 Q117 2SA970 Q118 2SC2240 Q218 2SC2240 IC11 AZ431 IC21 AZ431 JK41 1 2 3 4 5 CZ45 PHONES SOCKET C325BEE HEADPHONE BOARD Vm1.2 N8C320D03 R455 100,2W R454 100,2W R169 1M2 R269 1M2 C227 N.I. C127 N.I. TP10 TP11 Q22 A1312-GR Q23 C3324-GR C22 1nF R29 39k,MF,5% R211 100,MF,5% R212 100,MF,5% R210

37、 39k,MF,5% C24 10u/35V C23 10u/35V Q24 C3324-GR Q25 A1312-GR R215 15 R216 15 R203 82,MF,5% Q26 A1015 Q27 C1815 R219 82,MF,5% R220 82,MF,5% C28 39p C29 39p L22100uF R259100,5% 1 2 3 4 5 6 7 8 CZ21 CON9 Q202 A1312-GR R223 47K R249 68,1/4 1% MF Q29 2SD667 Q201 C3324-GR Q28 2SB647 D23 1N4148 D25 1N4148

38、D24 1N4148 D26 1N4148 R204 220k,MF,5% R202 220k,MF,5% -18V +18V R254 10 R255 10 Q203 C3324-GR R222 100K,MF,5% C203 22uF/16V R201 39K,MF,5% R221 100K,MF R206 82,MF,5% R205 39k,MF,5% Q204 A1312-GR C204 22uF/16V R269 330 C2241nF Q12 A1312-GR Q13 C3324-GR C12 1nF R19 39k,MF,5% R111 100,MF,5% R112 100,MF

39、,5% R110 39k,MF,5% C14 10u/35V C13 10u/35V Q14 C3324-GR Q15 A1312-GR R115 15 R116 15 R103 82,MF,5% Q16 A1015 Q17 C1815 R119 82,MF,5% R120 82,MF,5% C18 39p C19 39p L12100uF R159100,5% 1 2 3 4 5 6 7 8 CZ11 CON9 Q102 A1312-GR R123 47K R149 68,1/4 1% MF Q19 2SD667 Q101 C3324-GR Q18 2SB647 D13 1N4148 D15

40、 1N4148 D14 1N4148 D16 1N4148 R104 220k,MF,5% R102 220k,MF,5% -18V +18V R154 10 R155 10 Q103 C3324-GR R122 100K,MF,5% C103 22uF/16V R101 39K,MF,5% R121 100K,MF R106 82,MF,5% R105 39k,MF,5% Q104 A1312-GR C104 22uF/16V R169 330 C1241nF AMP-SMD MODULE L CHANNEL Vm1.4 D431 3.6V PCB-10:HEADPHONE Vm1.0 SC

41、HEMATICS DIAGRAM(1/4) AMP CIRCUIT Vm1.4 PCB-1:MAIN BAORD Vm2.0 PCB-4:AMP-SMD-L Vm1.0 AMP-SMD MODULE R CHANNEL Vm1.4 PCB-5:AMP-SMD-R Vm1.0 17 P/N: 01-32520-02 P/N: 01-32520-01 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 IC74 4094 Q1 4 Q2 5 Q3 6 Q4 7 Q5 14

42、 Q6 13 Q7 12 Q8 11 QS 9 QS 10 STR 1 D 2 CLK 3 OE 15 VCC 16 VEE 8 IC75 4094 C79 27p C710 27p Y71 11.0592MHz C77 10n C78 0.1u +5V C711 0.1u 20% C VI TU TA2 TA1 DI S71 AUX S72 TUNER S74 TAPE1 S73 VIDEO S75 DISC S77 CD S76 TAPE2 D71 AUX D72 TUNER D73 VIDEO D74 TAPE1 D76 TAPE2 D75 DISC D77 CD R726 2K2 SO

43、FT CLIPING D716 GREEN R725 2K2 Q716 C1815 R733 5K1 C71 100u/16V 1 2 3 4 5 6 7 8 9 CZ71 1 2 3 4 5 6 7 8 9 10 CZ76 R730 15K Q72 C1815 R72 470 R71 330 Q79 C1815 Q710 C1815 Q711 C1815 Q712 C1815 Q713 C1815 Q714 C1815 Q715 C1815 R741 4K7 R742 4K7 R743 4K7 R744 4K7 R745 4K7 R746 4K7 R747 4K7 C714 10n C715

44、 10n C716 10n C717 10n C718 10n C719 10n C720 10n C AU TU TA2 TA1 DI VIDEOAUXTAPE2TUNERDISCTAPE1CD VIDEO AUX TAPE2 TUNER DISC TAPE1 CD R754 4K7 R753 4K7 R752 4K7 R751 4K7 R750 4K7 R749 4K7 R748 4K7 KEY BOARD Vm1.2 R756 10K R757 10K R758 10K +5V AMBER REMOTE MUTE PROTECTION +5V VOL- VOL+ +12V +5V +5V

45、 REMOTE MUTE PROTECTION VOL+ VOL- SOFT CLIPING +12V +5V TO CB31 TO CB34 MUTING BLINK GREEN GREEN GREENGREENGREENGREEN +5V Q74 C1815 R701 2K2 Q73 C1815 +12V Q717 2SC1815 R703 2K2 R702 10K NC 1 NC 2 NC 3 Vss 4 SDA 5 SCL 6 NC 7 Vcc 8 IC71 24C01 IR IN IR OUT IR IN IR OUT C72 0.1uF +12V R708 10K C722 N.I

46、. D710 1N4148 D711 1N4148 D713 1N4148 D712 1N4148 +5V +5V R73 10K C712 0.1u 20% D715 1N4148 1 2 3 CB72 CON3 +5V D718 1N4148 +5V +5V IR BLINK R759 2k2 Q718 C1815 R760 4k7 1 2 3 4 CB74 TO MAIN BOARD CB35 IP R761 4K7 C721 10nF IP +12V P22 P20 P21 P00 P01 P02 IPOD R727 2K2 C723 100uF/16V D714 1N4148 RST

47、/VPP 1 P3.0(RXD) 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 13 2 IC76 TCM810MENB R762 10K VI AU R763 10K C724 N.I. C725 N.I. R764 10K PHONE71 Ipod IN 1 2 3 4 5

48、CB73 2 3 1 IC72 IS1U60L 1 2 3 CZ75 IR RECEIVER G 1 2 3 4 CZ74 VCC L R SIGNAL GND D719Ipod GREEN P9 C758 100p SHIELDING 1 C759 100p 2 C325BEE IR BOARD Vm1.0 3 4 1 2 5 3 C760 0.1uF D717 REDGREEN POWER/PROTECTION IND. 513AW S78 STANDBY C325BEE STANDBY BOARD Vm1.0 CZ73 CZ76 TP701 R765 N.I. R766 4.7K SCH

49、EMATICS DIAGRAM(4/4) PCB-11:IR BOARD Vm1.0 PCB-8:STANDBY BOARD Vm1.0 PCB-3:KEY BOARD Vm1.0 IPOD BAORD Vm1.0 PCB-9:IPOD BOARD Vm1.0 18 NAD C325BEE POWER CIR. C51 10n/250V D51 KBU8D C52 10n/250V D55 KBU8D C517 15000uF/50V 10% C518 15000uF/50V 10% D531 TIC116D D532 TIC116D R558 1K R563 22K R561 100 R562 1K R560 1K R559 1K R565 100 R564 22K R531 0.05/3W 5% CE R532 220 R534 2K2 R533 1M R566 4K7 D513 1N4004 R544 22K C523 3300u/50V C524 2200u/50V ! F51F52F54 F53 +46V -46V -37V +37V I-V AC DET. TRIG 10% 10% F55 500mA/250V 6.3A/250V X4 1 2 3 4 5 6 7 CB51 CON7 8V 0V 1 2 3 4 5 6 7 C