NAD-C372-立体声功放电路

NAD SE R VI C E M A N U A L C 372 STEREO AMPLIFIERC 3 72 ST ER EO A M PL IF IE R May 2005 ALIGNMENT PROCEDURE (C372) I. INITIAL ADJUSTMENT (No load connected) A. OUTPUT OFFSET VOLTAGE 1. Connect a DC Millivoltmeter between TP303 and TP304, then adjust VR303 (50kohms) to get a reading of 0V +/-3V so at the speaker terminals of 0V+/-30mV. 2. Connect a DC Millivoltmeter between TP403 and TP404, then adjust VR401 (50kohms) to get a reading of 0V +/-3V so at the speaker terminals of 0V+/-30mV. B. IDLING CURRENT 1. Connect a DC Millivoltmeter to TP301 and TP302, then adjust VR302 (500ohms) for 5-6mV reading on meter. 2. Connect a DC Millivoltmeter to TP401 and TP402, then adjust VR402 (500ohms) for 5-6mV reading on meter. 3. Leave power “ON” for a minimum of 5 minutes. C. ISC SENSITIVITY Connect a DC Millivoltmeter to TP701 and TP702, then adjust VR701 (47kohms) between –50mV to -100mV. II. FINAL ADJUSTMENT Repeat procedure A and B for offset voltage and idling current alignment respectively. VR303 VR302 TP303 TP304 TP302 TP301 VR402 VR401 TP402 TP403 TP404 TP401 LEFT CHANNEL RIGHT CHANNEL MAIN BOARD B649 E C B 2SB649 2SD669 PORT2/0 PORT2/1 PORT2/2 PORT2/3PORT2/4 PORT2/5 PORT2/6 PORT2/7 VCC XTAL2 XTAL1 PORT3/1 PORT3/2 PORT3/3 PORT0/0 PORT0/1 PORT0/2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Z86C0812PSC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 GND VCC 74LS00 IC902: QP0 QP1 QP2 QP3 QP4 QP5 QP6 QP7 1 2 3 4 5 6 7 8 9 10 11121314 15 16 8-STAGE SHIFT REGISTER 8-BIT STORAGE REGISTER 3-STATE OUTPUTS D CP STR OE QS1 QS2 VCC GND CD4094 2SA872 2SA1015 2SC1815 A970 E C B K369 D G S 2SK369 S G V IS1U621L R103 470 MF R105 470 MF C102 100p C103 100p R107 470 MF R109 470 MF R111 470 MF C104 100p C105 100p C106 100p R113 470 MF R115 470 MF R118 470 MF C107 100p C108 100p C109 100p R116 1M R114 1M R112 1M R104 1M R106 1M R108 1M R110 1M 6 5 4 RL6B 6 5 4 RL7B 6 5 4 RL8B 6 5 4 RL9B 6 5 4 RL10B 6 5 4 RL11B 6 5 4 RL12B RCA1C CD RCA1E VIDEO RCA2A AUX RCA2C TUNER RCA3A REC2 RCA3C TAPE1 RCA3E REC1 RCA2E TAPE2 RCA4A PREOUT1 RCA4B PREOUT 1 RCA4E PREOUT 2 RCA4F PREOUT 2 R203 470 MF R205 470 MF C202 100p C203 100p R207 470 MF R209 470 MF R211 470 MF C204 100p C205 100p C206 100p R213 470 MF R215 470 MF R217 470 MF C207 100p C208 100P C209 100P R216 1M R214 1M R212 1M R204 1M R206 1M R208 1M R210 1M 3 2 1 RL6A 3 2 1 RL7A 3 2 1 RL8A 3 2 1 RL9A 3 2 1 RL10A 3 2 1 RL11A 3 2 1 RL12A RCA1D CD RCA1F VIDEO RCA2B AUX RCA2D TUNER RCA3B REC2 RCA3D TAPE1 RCA3F REC1 RCA2F TAPE2 R119 220 MF 1 2 3 4 5 6 7 8 9 1 0 M102 C372 PREAMP MODULE +V34 R120 100 C211 8.2P R219 220 MF -V34 1 2 3 4 5 6 7 8 CB501 8PIN L buff out R buff out GND +34V -34V Lout GND Rout +V34 -V34 C212 22N PE C213 220u C214 220P R223 75/FS 0.5W R222 22K 6 5 4 RL2B A 2 RV5B 1K C215 220P RCA4D MAIN LIN RCA4C MAIN RIN 12345 CB301 5PIN 1 2 3 4 5 6 CB401 6PIN R753 100 C786 10n/63V TO LEFT POWER AMP TO RIGHT POWER AMP RCA1B DISC RCA1A DISC R101 470 MF C101 100pR1021M 6 5 4 RL5B R201 470 MF C201 100pR2021M 3 2 1 RL5A C111 22N PE C112 220u C113 220P R124 75/FS 0.5W R123 22K 3 2 1 RL2A B 1 A 1 RV5A 1K C114 220P R117 1M R218 1M 456 SW2B SOFT V34R CLLED BRIDGELED 8 RL5C 12V 8 RL6C 12V 8 RL7C 12V 8 RL8C 12V 8 RL9C 12V 8 RL10C 12V 8 RL11C 12V 8 RL12C 12V D730 1N4148 D731 1N4148 D732 1N4148 D733 1N4148 D734 1N4148 D735 1N4148 D736 1N4148 V5 IR IN IR out +12V TAPE1 TAPE2 TUNER AUX VIDEO CD DISC A SPEAKER ON IRMUTE B SPEAKER ON MAIN ON 789 SW3C BRIGDE 1 2 3 4 5 6 7 8 9 10 CB906 10PIN 1 2 3 4 5 6 7 8 9 10 CB907 10PIN+12V R126 100K R226 100K V34R PR IRMUTE +5V +12V R127 200 R227 200 C501 220u/25 R506 3K32 MF 1% R507 750 MF 1% R504 390 MF 1% R505 180 1% B 1 A 1 RV1A 10KA B 1 A 1 RV2A 10KA C507 22n 2% C508 0.1u 2% R501 1K5 MF 1% R502 390 MF 1% C503 0.22u 5% C504 0.97u 5% C509 470P RV4A 20K MN C601 220u/25 R606 3K32 MF 1% R607 750 MF 1% R604 390 MF 1% R605 180 1% A 2 RV1B 10KA A 2 RV2B 10KA C607 22n 2% C608 0.1u 2% R601 1K5 MF 1% R602 390 MF 1% C603 0.22u 5% C604 0.97u 5% C609 470P RV4B 20K MN R503 5K1 R603 5K1 ON OFF OFF ON B A L A N C E P O T B A L A N C E P O T B A S S P O T B A S S P O T T R E B L E P O T T R E B L E P O T RV3A 10KA RV3B 20KA 1 2 3 4 5 6 7 8 CZ501 8PIN VOL-UP TONE RIN TONE ROUT TONE LOUT 1 2 3 4 5 6 7 8 9 1 0 M501 C372 PREAMP MODULE R509 100 C511 44P -34V R511590 1% M F R609 590 1% M F MD1C R5232K2 R521 2K2 R525 2K2 R520 2K2 R524 2K2 R522 2K2 C520 4u7 C521 4u7 Q502 C1815 Q501 A1015 Q504 C1815 Q503 A1015 MOTOR M VOLUME CONTROL 5V 1234 CB502 4PIN VOL-DN TONE-LIN C602 10n C502 10n +34V -34V +34V +34V TONE&VOL BAL 4 5 6 SW4B DEFEAT 1 2 3 SW4A DEFEAT C522 0.1u -34V R513 10M R514 1.6 MF R614 1.6 MF R515 10K R615 10K Q804 2SK209 R810 18K R801 1K R 80 8 10 R804 10 R802 1K R805 1M R 80 6 43 0 R809 1K R803 1K5 R807 560 Q8 06 2S A1 22 5 Q801 2SA1312 Q802 2SC3324 Q8 05 2S C3 32 4 Q803 2SC2983 C802 1N C801 47pF Q809 2SK209 R818 18K R811 1K R 82 0 10 R819 10 R812 1K R814 1M R 81 5 43 0 R817 1K R13 1K5 R816 560 Q8 12 2S A1 22 5 Q807 2SA1312Q808 2SC3324 Q8 10 2S C3 32 4 Q811 2SC2983 C804 1N C803 47pF 123456789 1 0 P801 10PIN VEEVCC VCC VEE VCC VEE R821 220 C805 22p C808 22p R822 220 C806 0.1uF C807 0.1uF C809 0.1uF C10 0.1uF 1 2 3 SW3A 4 5 6 SW3B R11 10K +12VR12 22K R13 10K -V34 PR SP B SP A MAIN ON BG_OBG_I BG_S BG_O BG_I BG_S JIRA IR IN JIRB IR OUT S T R 1 D 2 C L K 3 O E 1 5 Q 1 4 Q 2 5 Q 3 6 Q 4 7 Q 5 1 4 Q 6 1 3 Q 7 1 2 Q 8 1 1 Q S 9 Q S 1 0 V C C 1 6 G N D 8 IC905 4094 S T R 1 D 2 C L K 3 O E 1 5 Q 1 4 Q 2 5 Q 3 6 Q 4 7 Q 5 1 4 Q 6 1 3 Q 7 1 2 Q 8 1 1 Q S 9 Q S 1 0 V C C 1 6 G N D 8 IC904 4094 C902 20P C903 20P X901 12MHz C901 0.1u C915 0.1u +5V C V I T U A U T 2 T 1 D I LD902 CD LD904 AUX LD901 DISC LD905 TUNERLD903VIDEO LD907 TAPE1 LD906 TAPE2 R924 4K7 R903 1K R923 2K2 Q913 A1015 P24 1 P25 2 P26 3 P27 4 VCC 5 X2 6 X1 7 P31 8 P32 9 P33 10 P00 11 P01 12 P02 13 GND 14 P20 15 P21 16 P22 17 P23 18 IC902 Z86C0812PSC Q901 C1815 Q902 C1815 Q903 C1815 Q904 C1815 Q905 C1815 Q906 C1815 Q907 C1815 R922 4K7 R920 4K7 R918 4K7 R916 4K7 R914 4K7 R912 4K7 R910 4K7 C906 10n C907 10n C908 10n C909 10n C910 10n C911 10n C912 10n C VI TUAU T2 T1DI CD VIDEO TUNERAUX TAPE2 TAPE1DISC C D V ID E O T U N E R A U X T A P E 2 T A P E 1 D IS C R909 4K7 R911 4K7 R913 4K7 R915 4K7 R917 4K7 R919 4K7 R921 4K7 R939 10K R906 10K R940 10K GREENGREENGREENGREENGREEN GREEN GREEN R935 100 R936 100 R937 10K 8 1 2 3 4 5 6 7 12 11 10 9 13 14 IC901 74LS00 +5V +5V +5V+5V R925 10K +5V V34R +12V K907VIDEO K906 AUX K904 TAPE2 K905 CD K903TAPE1 K901 DISC K902TUNER V S G IC903 IS1U621L C904 10u +5V K908 B R930 6K8 R933 2K2 R928 0 Q910 C1815 LD911 BRIDGE LD912 SOFTLD909 B A A SPEAKER ON A S P E A K E R O N MUTE blink V34R A SPEAKER ON TAPE1 TAPE2 TUNER AUX VIDEO CD DISC +5V REMOTE REMOTE CONTROLLER KEYBOARD B SPEAKER ON IR M U T E B SPEAKER ON B LD908 A B S P E A K E R O N Q908 C1815 R908 4K7 C913 10n R907 4K7 Q909 C1815 R904 4K7 C914 10n A R905 4K7 BRLED CLLED IRMUTE B BRLED CLLED PR PR K909 A 15 9 3 BLINK +5V R927 330 R934 820 Q912 C1815 D909 1N4148 D912 1N4148 LED910 LED2 G R N R E D G R N IR OUT IR IN +5V IR OUT IR IN +12V D907 6V8 +12V R929 22K LED BOARD P ON/OFF D908 1N4148 D906 1N4148 D910 1N4148 D911 1N4148 P12V TO PHONE BOARD CZ706 1 2 3 4 5 6 7 8 9 10 CZ906 10PIN 1 2 3 4 5 6 7 8 9 10 CZ907 10PIN 1 2 3 4 CZ502 4PIN V34R Q914 C1815 R941 10K R943 4K7 P ON/OFF R944 2K2 R945 2K2 Q916 C1815 R901 200 R900 1K +5VR902 1K Q915 A1015 +5V +5V NC 1 NC 2 NC 3 Vss 4 SDA 5 SCL 6 NC 7 Vcc 8 IC906 24C00 R931 10K +5V C905 47uF/25V R938 330 R926 22 R798 330 R610 15K R510 15K R121 562 R221 562 /2SD1815 /2SD1815 /2 SB 12 15 /2 SB 12 15 C372 PREAMP MODULEC372 PREAMP MODULE C25 2N2 C26 2N2 CHASSIS CHASSIS TO STAR GND TO STAR GND RLO2A RLO4A R VSP SP0R SP0L L VSP POWER AMP FROM RIGHT TO SPEAKERS L OFFSET L PHONES R PHONES R OFFSET LA LB LA- LB- RA- RB- RA RB CB1 SPK-OUT RLO3A RLO1A POWER AMP FROM LEFT 2SA1943 B C E 2SC5200 2SA872 2SA1015 2SC1815 A872 E C B B649 TL431 LM317 1 2 3 LM317 R A K E C BTL431 2SB649 2SD669 1:ADJUST,2:OUT,3:IN LM337 LM337 1:ADJUST,2:IN,3:OUT 1 2 3 LM7805 LM7805 1:IN 2:GND,3:OUT C717 22n/250VC718 22n/250V C724 C727 Q704 2SC1815 Q703 2SA1015 D702 BT151-500R D703 BT151-500R R703 1K R715 22K R706 100 R708 1K R704 1K R705 1K R707 100 R709 22K R710 0.025/3W 2% R711 100 1% Q705 2SA1015 Q706 2SA1015 R713 470K FP H1H2 L1 L2 G 52.1V AC 35.1V AC C730 22n/250V C731 22n/250V 40V AC R733 240/1% MF R735 240/1% MF R732 6K2/1% MF R734 6K2/1% MF C754 22u/50V C755 22u/50V C756 22N C757 22N IN IC703 LM317M IN IC704 LM337M C750 22N C751 22N +V34 -V34 C748 2m2/50V C749 2m2/50V C752 10u/50V C753 10u/50V D709 1N4148 D710 1N4148 C720 22n/100V C721 22n/100V R746 1/1W FS R747 1/1W FS R748 1/1W FS R749 1/1W FS C732 22n/100V C733 22n/100V C734 1000u/100V C735 1000u/100V R716 1K R717 1K R722 33 FS R719 1K R718 1K R720 1K R724 1K R721 1K R730 10K R726 1K R725 3K3 R728 10K R723 33 FS R727 1K R729 22K C738 100u/16V C742 10u/100V C743 4u7/100V C739 100u/16V C747 22u/80V C744 22n C741 47P C740 47P C745 22n Q709 2SD669A/KSC2690 Q710 2SC1775A Q711 2SC1775A Q712 2SB649A/KSA1220 Q713 2SA872 D705 1N4148 D706 1N4148 D708 1N4148 D707 1N4148 C736 47u100V C737 47u/100V R731 22K C746 22u/80V +V34 +V68 -V68 61.5V AC Q714 2SC1775A Q715 2SD669A/KSC2690 R736 6K2 R737 3K9 R738 270/2W FP +V34 V34R +12V AC S1 AC S2 + + - - B705 DB104 AC S1 AC S2 + + - - B706 DB104 AC S1 AC S2 + + - - B703 KBU1004 AC S1 AC S2 + + - - B704 KBU1004 AC S1 AC S2 + + - - B701 DB101 C706 22N C707 2m2/16V C708 100N C710 100N C709 10u/16V IN IC701 7805 D701 1N4148 V5 C722 22n/100V C723 22n/100V D704 1N5401 1 2 3 4 5 6 7 8 9 CB402 9PIN 1 2 3 4 5 6 7 8 9 CB302 9PIN 10A10A 1A Q707 2SA1015 Q708 2SC1815 R714 22K R768 36K 1% R740 1K 1% R742 1K R789 36K 1% C703 10uF/50V C704 10uF/50V 1 2 3 SW2A R744 1K R741 1K 1%D73224V/0.5W D731 24V/0.5W SC-N OVER CURRENT +68V -68V POS 90 POS 80 +V68-V68 -68V +68V OVER CURRENT SC-P FROM VI OVER LOAD DET IN POWER AMP D724 1N4148 D722 1N4148 R781 22K Q723 2SA1015 +12V RLO1B 36V Q727 2SC1815 R788 5K6 +V34 clip 1 2 3 CB705 8 RL2C 12V L PHONES R PHONES C759 10n CHASSIS R745 2.2 +20/-10% C728 10000u/80V x 6 C725 0L 0R SP0L SP0RSTAR GROUND POINT -V64 TO LEFT POWER AMP I/V I/V OVER LOAD DET FROM POS 80 FROM POS 90 (TRIG) +V64 -V64 SOFT CLIP 1 2 3 4 5 CB704 5PIN 1 2 CB702 2PIN 1 2 3 4 5 CB703 5PIN D725 1N4148 RLO3B 36V Q725 2SA1015 Q726 2SA1015 D723 1N4148 D726 1N4148 R786 10K R785 10K SP A SP B L OFFSET R OFFSET ISC ISC C IRMUTE Q722 2SC1815 R791 10K R792 100 R793 100 C705 0.1uF SC-P SC-N R21 3R3/1W FP L2 1uH C24 22N R20 3R3/1W FP L1 1uH C23 22N R VSP Q729 2SC1815 D727 1N4148 R794 220K +V34 -V34 MUTE-L MUTE-R PR TO CB304&CB404 C21 22N C22 22N PR RLO2B 36V RLO4B 36V R795 100K R712 9K1 1% R796 470K D716 1N4148 R757 100K R756 100K R758 62K 1% R767 390K 1% 6 7 8 4 IC705A TL082BD R764 20K R765 12K R769 20K R770 12K R766 10 R771 10 Q720 2SC1815 Q721 2SA1015 +V34 C764 10u/50V C769 10u/25V -V34 V12 C767 1uF/50V R755 220K IC705B TL082BD R752 200K R743 470K C761 1uF/50V C762 1uF/50VR759 10K D715 1N4148 R751 27K 1% R760 220K 1 2 3 -V12 5 R761 220K Q730 2SC1815 R799 22 -V12 BG_D ISC R VSP ISC C 1 VR701 50K C719 1N 1 2 3 4 CB404 1 2 3 4 CB304 -V64 +V64 +V64 R797 470K TP9 TP10 R754 10K D714 6.8V C760 1uF/50V D711 BAV21 D713 BAV21 R VSP D720 4.7V D719 4.7V D717 BAV21 D718 BAV21 C766 C765 V34R Q701 2SD669A/KSC2690 R739 10 PJ701 +12VOUT R701 1K C714 100N R702 68Q702 2SC1815 Q700 2SC1815 D700 14V R700 270 R774 56K R773 56K C781 330u/16V C783 4u7/50 C782 0.22u R782 10K R780 10K R777 56K C784 47u/50 1 2 3 4 5 6 7 8 IC706 uPC1237HA +V34R R775 22K R776 22K D720 1N4148 D728 1N4148 D729 10V Q724 2SA1015 C785 10u/50 R783 820 R784 10K R787 10K R778 10K R779 220/3W FP R790 5K1 ! RED GRY BLK ORG VIO ! ! P1A T2: TI-67790B: AC 230V/50Hz TI-67791B: AC120V /60Hz t 0 AUTORESET 230V/50Hz 120V/60Hz 0V P1B CHASSIS 1 2 3 4 5 CZ704 5PIN 1 2 CZ702 2PIN 1 2 3 4 5 CZ703 5PIN MAIN STANDBY P2B P2A T2 ! t 0 YEL YEL BLU BLU WHI 1 2 3 CZ711 D712 1N4148 F701 T3.15AL/250V CE RL701 250V/10A C702 4n7/400V +5V P ON/OFF STANDBY& ! ! C701 4n7/400V SW1 ! 1 2 3 CB711 1 2 3 CZ707 1 2CB709 1 2 CZ709 1 2 3 CB707 12 CB710 1 2 3 CZ710 ! ! ! PHONE BOARD N13C372D06 N 13C372D11 N13C372D12 AC IN/OUTLET BOARD PSW BO ARD 1 2 CZ706 AH 1 2 3 CZ712 12 CZ713 T6.3AL/250V AH PHONE BOARD R762 220/2W FP JK701 1 2 3 CZ705 PHONE SOCKET PHONE BOARD R763 220/2W FP STANDBY&PHONE BOARD N13C372D06 R374 100 Q329 A872 Q330 C1775 R373 100 C307 22P C302 680P C305 22P C315 0.1uF R302 22K R303 100 R312 100 R304 100 R313 27K R305 27K R314 100 R306 100 Q313 NOTE Q310 NOTE Q309 2SA1015 Q305 2SA1015 Q307 2SA872 Q306 2SA872 Q301 2SA872 Q311 NOT Q312 2SC1815 Q308 2SC1815 Q304 2SC1775 Q303 2SC1775 Q302 2SC1775 R308 33 R320 33 R318 47K MF R359 10/1W FS R315 1K R323 82 FP 1/2W R321 39K R317 150/1/4W 1% R319 9K1 1/2W 1% R327 39K R307 82 R316 10K R328 100 R311 1K R310 10K R326 100K R324 100K R309 82 FP 1/2W D303 1N4148 D304 1N4148 D306 1N4148 D305 1N4148 C308 N.I. Q314 NOTE R330 3R3/0.5W FP R332 330/0.5W FP R334 4K7/3W FP R338 3R3/0.5W FP R341 330/0.5W FP R344 4K7/3W FP R337 100/1W FS R329 100/1W FS R331 4R7/FS R339 4R7/FS R336 33 R340 33 L301 10uH L302 10uH R345 1K2 R346 1K Q315 KSC2690 Q317 NOTE Q324 2SC5200 Q322 2SC5200 Q318 NOTE R357 0.05/5W R356 0.05/5W R348 75 1W FP R349 75 1W FP R342 10K R333 10K C313 470P C314 470P Q327 2SA1943 Q321 2SA1943 D308 BAV21 D307 BAV21 C318 0.1uF +V64 -V64 +V64 -V64 +V68 -V68 0VRA R301 470 0VRA 0VRA 0VRA 0VRA 0VRB 0VRB C301 10uF/50V C303 10uF/50V C304 10uF/50V C306 2200u/6.3V C311 100UF C312 100u/25V R335 10K R343 10K C316 0.1uF C317 0.1uF C309 0.1uF C310 0.1uF 0VRA 0VRA Q326 2SA1015 Q325 2SC1815 R364 6K8 C321 10u/50V R363 22K R361 1K R362 15K C320 22N D309 1N4148 R365 22K Q323 2SA1943 Q328 2SC5200 0VRB LEFT POWER AMP R 322 10K 1/2W 1% L i/p GND R 367 T0=80 degree C 0VRB -V68 +V68 1 2 3 4 5 6 7 8 9 CZ302 V/I OVER 0VRB +V64 0VRB -V64 VOP L D302 18V D301 18V 3IC2 TL431 3IC1 TL431 1 VR302 500 R347 220 Q316 2SA1015 1 2 3 4 5 CZ304 VOP L R 35 8 10 0 1W F P R375 2K2 1 2 3 CZ301 3PIN C324 0.1uF TO CB302 TO CB301 TP1 TP3 TP2 TP4 0VRB C322 10uF/50V C323 10uF/50V 0VRB 0VRB N13C372D02 ADJ DC ADJ Bias DC R376 220K R377 82 R378 39K R380 2.2 R382 2.2 R384 2.2 R386 2.2 Q319 2SA1943 R381 2.2 R383 2.2 R385 2.2 R387 2.2 Q320 2SC5200 0VRA L S C P L S C N L M U L SCP L SCN L MU R351 22 C326 10uF/50V VR301 50K C325 10uF/50V R379 180K NB NB Q337 NOTE Q338 NOTE R391 1 R388 1 R389 1 R390 1 C319 0.1uF 0VRA VOP L 1 2 CB706 2PIN MAIN ON +5 SPEAKER R474 100 Q429 A872 Q430 C1775 R473 100 C407 22P C402 680P C405 22P C425 470pF R402 22K R403 100 R412 100 R404 100 R413 27K R405 27K R414 100 R406 100 Q413 NOTE Q410 NOTE Q409 2SA1015 Q405 2SA1015 Q407 2SA872 Q406 2SA872 Q401 2SA872 Q411 NOTE Q412 2SC1815 Q408 2SC1815 Q404 2SC1775 Q403 2SC1775 Q402 2SC1775 R408 33 R420 33 R418 47K MF R459 10/1W FS R415 1K R423 82 FP 1/2WR421 39K R417 150/1/4W 1% R 419 9K1 1/2W 1% R427 39K R407 82 R416 10K R428 100 R411 1K R410 10K R426 100K R424 100K R409 82 FP 1/2W D403 1N4148 D404 1N4148 D406 1N4148 D405 1N4148 Q414 NOTE R430 3R3/0.5W FP R432 330/0.5W FP R434 4K7/3W FP R438 3R3/0.5W FP R441 330/0.5W FP R444 4K7/3W FP R437 100/1W FS R429 100/1W FS R431 4R7/FS R439 4R7/FS R436 33 R440 33 L401 10uH L402 10uH R445 1K2 R446 1K Q415 KSC2690 Q417 NOTE Q424 2SC5200 Q422 2SC5200 Q418 NOTE R457 0.05/5W R456 0.05/5W R448 75 1/2W FP R449 75 1/2W FP R442 10K R433 10K Q421 2SA1943 Q423 2SA1943 D408 BAV21 D407 BAV21 C418 0.1uF +V64 -V64 +V64 -V64 +V68 -V68 0VRA R401 470 0VRA 0VRA 0VRA 0VRA 0VRA 0VRB 0VRB C401 10uF/50V C403 10uF/50V C404 10uF/50V C4062200u/6.3V C411 100UF C412 100u/25V R435 10K R443 10K C416 0.1uF C417 0.1uF C409 0.1uF C410 0.1u/80V 0VRA 0VRA Q426 2SA1015 Q425 C1815 R464 6K8C 42 1 10 u/ 50 V R463 22K R461 1K R462 15K C420 22N D409 1N4148 R465 22K Q427 2SA1943 Q428 2SC5200 0VRB RIGHT POWER AMP R422 10K 1/2W 1% R i/p GND VR401 50K R 466 90C THERM AL BREAKER R 467 T0=80C PO SISTO R 0VRB -V68 +V68 1 2 3 4 5 6 7 8 9 CZ402 0VRB +V64 0VRB -V64 VOP R D402 18V D401 18V 4IC2 TL431 4IC1 TL431 1 VR402 500 R447 220 Q416 2SA1015 0VRA 1 2 3 4 5 CZ404 VOP R 1 2 3 4 CZ401 R475 2K2 R 47 1 8K 2 1/ 2W 1 % R 47 2 8K 2 1/ 2W 1 % Q431 C2878 C424 0.1uF TO CB402 C422 10uF/50V C423 10uF/50V 0VRB 0VRB TP7 TP5 TP6 TP8 0VRB N13C372D03 ADJ DC ADJ Bias DC R476 220K R477 82 C415 10uF/50V R425 39K R480 2.2 R482 2.2 R484 2.2 R486 2.2 Q419 2SA1943 Q420 2SC5200 R481 2.2 R483 2.2 R485 2.2 R487 2.2 C426 470pF R451 22 0VRB NB R NB R B G R S C P R S C N R M U R MU BG R SCP R SCN R450 180K C419 10uF/50V Q437 NOTE R488 1 R489 1 Q438 NOTE R491 1R490 1 C428 0.1uF C413 0.1UF AC IN AC INLET 23 1 84 IC301A TL082D C327 1uF R392 1M R393 24K 0VRA VOP L -18V -18V 23 1 84 IC401A TL082D C427 1uF R452 1M R453 24K 0VRA -18V VOP R R750 3K3 R772 2K2 D740 1N4148 R396 4K7/3W FP R395 4K7/3W FP R495 4K7/3W FP R496 4K7/3W FP +64V-64V 1 2 3 4 5 1 2 3 4 1 2 3 4 5 1 2 3 4 R? STANDBY TRANSFORMER R 3 3 6 9 0 C T H E R M A L B R E A K E R B C E 2SA1837 2SC4793 1 2 3 BT151 1: CATHODE 2: ANODE 3: GATE NOT E : Q310 Q311 Q313 Q314 Q317 Q318 Q337 Q338 Q410 Q411 Q413 Q414 Q417 Q418 Q437 Q438 AR E DIF F E R E NT F OR E AC H V E R S ION OF C 372, P LE AS E WAT C H T HE V E R S ION NUMB E R ON T HE AMP P C B T O MAK E S UR E T HAT : IF IT IS V4, P LE AS E R E P LAC E T HE AB OVE T R ANS IS T OR S WIT H 2S B 649A/2S D669A. IF IT IS LAT E R T HAN V 4.1, P LE AS E R E P LAC E IT WIT H 2S A1837/2S C 4793. T HE T R AC E F OR E AC H V E R S ION AR E DIF F E R E NT , DO NOT MIX T HE M! S004 S003 C005 C004 C003 S004 S003 S002 C001 S002S001 S002 S006 S006 S007 S006 S006 S008 S009 S008 F002 S009 F004 F005 F006 F001 F003 S009F012F010 F011F009 F008 F007 S010 T001 R001 R002 R003 S009 F008 F016 F015F014 F013 S013 S014 F019 F017 F018 F021 F020 F022 S015 C012 S017 C015 C014 S016 C009 C008 C007 C006 C002 C011 C010 C024 S012 C017 C018 C019 C020 S011 C021 C022 C023 C016 C013 M001 M005 M002 M00