Technics-SADV-280-Schematics电路原理图.pdf

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1、- From POWER TRANSFORMER 1 8 W501 2 3 4 5 6 7 9 12 13 14 15 16 17 18 A.GND +B(10V) SUR L SUR R 19 11 10 CT.GND SH FL1 DATA D.GND TUNER L/C TUNER Rch Lch IN Rch IN S.W MIC -B(-10V) V.GND CE/REQ CLK SH FL2 20SYNC +B5 Rch Rch -B3 To SOUND PROCESSOR (SH-DV280) BLOCK DIAGRAM LC72 CE LC72 DI/ST LC72 CK DA

2、TA1 CLK1 DATA IN CE1 345 LC72 DO 2 C2BBFD000317 IC901 SYSTEM CONTROL / FL DRIVE Rch 94 SH CS 97 SH CK 9596 SH DO SH DI SHSYNC 100 SD 21 SH REQ 1920212223 AM MIX 12 LEVEL DET FM IF S- CURVE 2 3 REG 4 13 AGC COMP 681110 AM RF AMP AM IF AM/FM IF BUFFER 24 1 FM DET AM OSC BUFEER ALC TUNING DRIVE 18 BUFF

3、ER AMP FM ANT RF AMP FM MIXER FM OSC 9 Vcc +B(FM) FM IF AMP +B2 AM IFT 1 20 7.2MHz XIN XOUT PHASE DET CHARGE PUMP CE2 3 DI 4 CL D05 98710 BO4 BO3 IO1 15 VDD 16 PD IFIN 11 BO2 1/2 14 13 FM IN AM IN Power supply (FM:ON) +B2 +B1 +B(FM) SD STEREO SWITCH 17 FM / AM I F AMP, DET / AM OSC, MIX / FM MPX (LA

4、1833MN) 15 PILOT CANCEL PHASE DET 16 VCOFFFF PILOT DET FF AM DET DECODER BO16 IO2 12 19 Vss Power ON RESET PLL FREQUENCY SYNTHESIZER (LC72131M) +B2 GND 5 7 ST MONO FM/AM SD FMDET FM IF IN AM OSC OUT AFC AM OSC AM RF IN AGC AM OUT DET OUT PILOT IN MPX IN PILOT OUT Lch 14 Rch 17 18 AIN AOUT AM ANT COI

5、L AM OSC COIL AM ANT +B2 STRQ AM IF IN AM MIX OUT Rch IFT +B(FM) +B(FM) +B(FM) FM:ON DET CE1 DATA1 CLK1 DATA IN SW CONT. 12 X0 X1 14 ABC 11109 G 8 2 13 BU4053BCFE2 IC201 SIGNAL SELECTOR 1 15 Y1 Y0 VDD 16 +B4 VSS 7 -B3 6 ST/AV. 6CH SD Z101 TUNER UNIT (RAN0005EM-2) REFERENCE DIVIDER SWALLOW COUNTER 1/

6、6,1/17 4BIT 12 BIT PROGRAMMABLE DIVIDER DATA SHIFT REGISTER LATCH UNIVERSAL COUNTER MUTING Q605 MUTING Q607 (Q608) 93 MUTE3 MUTING CONT. +B4 Q902 10 SEL/ TUNER MIC DET 25 +B8 SA-DV280(EB,EG) BLOCK DIAGRAM SPEAKERS R ch PHONES VR901 (VOLUME) 2423 VR JOGA VR JOGB KEY SWITCH (S901908, 910915) 1920 KEY

7、TU KEY KARAOKE Q901, D904 RESET 12 RESET +B8 90 VDD2 +B9 VDD1 VDD3 VDD4 184672 C2BBFD000317 IC901 SYSTEM CONTROL / FL DRIVE 29 REMO- CON Z901 (REMOTE SENSOR) +B8 18G 3037 P138 3845, 4750 5271, 7378 FL901 FL DISPLAY D931,933 79 REGIN0 82 TIMER 83 S.W LED D951 (DIGITAL S.WOOFER) 81 STAND-BY D954 (PLAY

8、/REC) D306 () 1621 GND 1047 5 1 (2) 6 3 20 15 19 (18) 26 (25) 23 24 RSN311W64B IC601 POWER AMP +B3 D601 -B1 D602 -B2 Q601,602 9 +B7 13 POWER 98 E DET HP SW 26 SASYNC AC IN 88 POWER POWER 11 +B8 1 CHECK DET 28 RDS DATA RDS CLK 27 14 N Q503,D558 51 -VP -VP 86 MUTE D906 PRO- TECTOR D974 SWITCH- ING D90

9、7 REGIN1 22 8 11 (12) 1617 X901 (6MHz) XC IN XC OUT 1314 X902 (32.7kHz) X IN X OUT 80 MUTING Q606 AC IN POWER CONTROL CIRCUIT POWER CONTROL/ PROTECTION CIRCUIT C1BB00000527 IC151 RDS SIGNAL DEMODULATOR CLOCK RECOVERY (1187.5kHz) DATA CLK IDR RDS-ID DETECT/ RAM 57kHz BPF (SCF) PLL (57kHz) VREF CINFLO

10、UTVREF VDDA/D VssA/D MPXIN TEST XOUTXIN OSC/DIVIDER CLK(4.332MHz) 89 7 2 4,10 3,11 +B2 156 14 15 16 X151 (4.33MHz) REFERENCE VOLTAGE TEST ANTIALIASING FILTER SMOOTHING FILTER DATA DECODER MODE 1213 RST 91 MUTE2 MUTING CONT. +B5 Q612 MUTING Q609 (Q610) SURROUND (8) CENTER (8) HF (6) LF (8) Q551,554,

11、555 SIGNAL LEVEL DET. -B3+B4 M FAN MOTOR MOTOR DRIVE Q553,556, 557 15 Vss 89 Vss2 SA-DV280(EB,EG) BLOCK DIAGRAM POWER TRANSFORMER F1 AC IN L701 T701 D702,704, 752,754,755 Q707 +B4 -B3 Q702,705 Z701 RL702 Q791 POWER TRANSFORMER T702 D741744 -B1 -B2 Q703,704 +B7 D701,703, 751,753,761 Q701 +B1 Q723 +B2

12、 Q711,712,725 D717720 +B5 D705 -VP FL1 FL2 FL DISPLAY (FL901) Q708,709 +B3 AC IN SHSYNC POWER Q726 +B6 +B8 +B9 D902 D901 SASYNC D746 REGULATOR /STABILIZER REGULATOR REGULATOR REGULATOR SWITCH- ING REGULATOR REGULATOR RELAY DRIVE +B6 D740 REGULATOR /STABILIZER SA-DV280(EB,EG) BLOCK DIAGRAM NOTES :SIG

13、NAL LINE : FM SIGNAL : AM SIGNAL : FM OSC SIGNAL : AM OSC SIGNAL :AUDIO SIGNAL () indicates pin No. Right channel. 12345678910111213 A B C D E F G H SA-DV280(EB,EG) OPERATION, MAIN P.C.B. Note: This printed circuit board diagram may be modified at any time with the development of new technology. MAI

14、N P.C.B. B 10 9 8 7 6 5 4 3 2 1 D607 R635 R719 J J W902A J J J J J J J 15 13 11 9 7 5 3 1 14 12 10 8 6 4 2 C664 C725 J J J J J J J J J J J J J J J J J R230 C740 C733 C735 R764 R763 D737 B C E Q723 W901A W501 20 18 16 14 12 10 8 6 4 2 19 17 15 13 11 9 7 5 3 1 15 13 11 9 7 5 3 1 14 12 10 8 6 4 2 R694

15、R761 R696 R695 J J J J J J D657 D659 C705 D611 B C E Q612 J J J J J J J J J J J J C737 C706 J R776 R738 R739 R708 E C B Q708 E C B Q709 E C B Q707 D721 C707 C708 C509 C510 C202 C714 C731 C741 D720 D719 D718 D705 D717 C715 C602 C656 C655 C554 C601 C555 C622 C660 C659 C371 C551 E C B Q609 E C B Q610 E

16、 C B Q554 E C B Q607 E C B Q608 E C B Q606 E C B Q605 E C B Q555 B C E Q602 B C E Q551 B C EQ503 B C E Q601 J J J J 1234567891011 CP101 E602 R605 R606 R617 R618 R684 R683 R604R603 R686 R685 R601 R614 R602 J J J J J J J J J J J J J J J J R693 R692 R564 R229 R628 R688 R687 R512 R511 R509 R204 R203 R72

17、7 R211 R510 R563 R558 R607 R608 R560 R569 R598 R597 R570 R561 R591 R559 R557 D555 D552 D757 D658 D551 D756 C550 C647 C605 C606 C610 J J J J J J E C B Q704 E C B Q703 C721 R572 R544 R610 R619 R612R691 R624 R620 R546 R547 R638 J J C604 C608 C603 C607 C649 C609 C650 C612 R627 C613 R555 C614 C723 C552 C

18、648 C619 C611 C724 R621 R615 R631 R632 R552 R551 R609 R611 R637 R769 R721 R722 R648 R647 R767 R622 R556 R623 R797 R796 R729 R202 R205 J J C616 C617 C618 J D558 J J D725 IC601 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J J J J J J J J J J J J J J J J J J J J J J J J J J J J

19、J J W721A W722A 10 9 8 7 6 5 4 3 2 1 4 3 2 1 J J J C709 C761 D755 D754 D761 D753 D702 D704 D752 D701 D751 D703 D601 D602 C704 C701 C703 C702 J J J J J J J J J J J J J J J J E601 L602 L601 L605 L606 C639 C637 C635C636C632 JK601 JK602 1 2 3 4 CP602 5 6 7 8 J J J C626 C620 C630 C621 C631 C642 R651 R642

20、 R652 R650 R649 R639 R641 R640 C627 C629 C628 C732 C641 C640 To SOUND PROCESSOR LF (8 ) HF (6 ) LF (8 ) HF (6 ) CN781 N Rch Lch SPEAKERS D582 D581 D583 D553 D554 E C B Q553 E C B Q557 C559 R568 R566 R567 1 2 JK551 E C B Q556 C201 158 9101516 IC201 D201 1 2 3 4 5 68 910 1112 CP601 7 (REP3337E-M) N N

21、C556 N N OPERATION P.C.B. A VR901 (VOLUME) C902 C928 C922 C920 R929 R988 R991 R975 R974 R934 R937 R930 R931 R918 R957 R919 R932 R956 R987 C915 D906 J J J J J J J J J J J J J J J J J J J J J R995 R942 R941 R912 W902B 15 13 11 9 7 5 3 1 14 12 10 8 6 4 2 S913 D951 W901B 15 13 11 9 7 5 3 1 14 12 10 8 6

22、4 2 D902 D901 J R926 R993 R958 R969 R959 R997 R996 R990 R936 R935 R999 R954 C921 C903 D973 R939 R960 R986 J J J J J J C926 C905 D933 D931 D905 J L901 L902 J J C901 FL901 1 2 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

23、 49 50 53 54 L153 J J J R155 1 5 10 15 20 25 30 35 40 45 50 55 60 31 51 65 75 70 80 81 85 90 95 100 IC901 R953 R951 R943 R961 R924 R925 R922 R921 J J J R952 R976 R928 R950 R945 R962 R949 C912 C908 C907 C925 C909 C904 C911 C910 D907 J J J J J 3 2 1 X901 J J X902 C914 C916 C918 B C E Q901 R151 R152 R1

24、53 R154 L152 R158 C152 C153 C154 L151 J C919 C151 C927 Z901 (SENSOR) D151 C160 C155 C156 X151 IC151 158 9101615 C157 C159R944 R946 C924 C917 D974 C158 S901 ( / ) D306 ( ) R901 J S904 ( PLAY/ REC) R904 R157 R903 R902 S902 (CLOCK/ TIMER) C923 JK903 (PHONES) 2 1 4 3 5 6 7 W905 C395 C396 J R906 R905 S90

25、7 (SET) S906 (TUNING MODE) S905 (FM AUTO/ MONO) S903 (DEMO) J J J J J R910 R909 S908 (INPUT SELECTOR) S910 (TUNING ) D904 R911 R994 R940 R907 S912 (TUNER/ BAND) J S911 (TUNING ) R914 R915 R916 R913 J S915 (RDS DISP MODE PTY) S914 (RDS DISP MODE PS) J DIGITAL S.WOOFER D954 ( PLAY/ REC) 3 2 1 1 2 3 E

26、C B Q902 D961 R966 R965 (REP3337E-M) N C931 12345678910111213 A B C D E F G H SA-DV280(EB,EG) AC IN, POWER TRANSFOMER(A)/(B), POWER SUPPLY P.C.B. Note: This printed circuit board diagram may be modified at any time with the development of new technology. POWER SUPPLY P.C.B. C B C E Q701 B C E Q702 B

27、 C E Q711 B C E Q712 B C E Q725 E C B Q705 R725 R723 C719 C717 C710 C720 W701B D723 C718 C722 C734 R720 R724 R768 R749 R765 R753 R754 D758 D739 D738 J D730 10 9 8 7 6 5 4 3 2 1 (REP3337E-M) POWER TRANSFORMER (A) P.C.B. E W722BW721B 1 2 3 4 5 6 7 8 9 10 1 2 3 4 R793 CN710 CN709 CN708 CN707 CN706 CN70

28、5 CN704 CN703 CN702 CN701 FP792 R798 FP791 J POWER TRANSFORMER (B) P.C.B. F CN711 CN713 CN712 W1 W2 W3 J J J J J J T701(Power transformer) (REP3337E-M) REP3338A-S . . . EG REP3338B-S . . . EB JK701 JK603 L701 FC1FC2 F1 T2A Z701 C791 RL702 1 2 43 1 2 3 4 CN601 5 6 7 8 9 10 11 12 1 2 3 4 CN602 5 6 7 8

29、 T702(Power transformer) R794 R773 R774 R795 R771 R772 R712 E C B Q791 E C B Q726 D500 D711 D746 D740 J J C754 C758 D745 C759 R777 D742 D743 D741 D744 J J J J J J J C755 C753 C634 W1 W2/W3 D747 AC IN P.C.B. D AC IN C644 C646 C651 C652 C624 C633 C625 C645 C643 R646 R645 R644 R643 L603 L604 C SR SL 23

30、0V 50Hz . . . EG 230-240V 50Hz . . . EB REP3338A-S . . . EG REP3338B-S . . . EB CENTER/ SURROUND SPEAKERS A B C D E F G H 123456789101112 SA-DV280(EB,EG) OPERATION CIRCUIT DIAGRAM SCHEMATIC DIAGRAM-1 S904 (PLAY/ REC) FL901 (A2BB00000084) 1 7 5 4 6 3 2 T S S908 (INPUT SELECTOR) S907 (SET) S906 (TUNIN

31、G MODE) S905 (FM AUTO/MONO) JK903 PHONES 3.5mm STEREO R997 150 R996 150 D973 MA4030MTA C921 1000P C922 35V33 C920 25V22 R922 10K R921 10K R944 2.2K R912 4.7K R911 3.3K R910 2.2K R909 1.8K R916 1.5K R915 1.2K R914 1K R913 820 R907 3.3K R906 2.2K R905 1.8K R904 1.5K R903 1.2K R902 1K R901 820 FL DISPL

32、AY 16810 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 5053 542579 W905 S901 ( / ) C928 25V22 NOTE: The number which noted at the connectors on the schematic diagram as SCHEMATIC DIAGRAM-1 or SCHEMATIC DIAGRAM-2 indicates the sch

33、ematic diagram serial number located on the left corner in the schematic diagram.AOPERATION CIRCUIT C919 25V22 C927 25V22 C396 0.047 C923 0.1 C395 0.047 D974 MA165TA C907 470P C924 0.1 C904 0.01 R924 1K C908 470P R925 1K S914 (PS) S915 (PTY) S910 (TUNING,) S911 (TUNING,) S912 (TUNER/ BAND) S913 (DIG

34、ITAL S.WOOFER) (RDS DISP MODE) A B C D E F G HIJKL M N O P Q R S T U X W V ABCDEFGHIJKLMNOPQRSTUVWXYZ S902 (CLOCK/ TIMER) S903 (-DEMO) IC901 C2BBFD000317 SYSTEM CONTROL/ FL DRIVE C B A Q901 UN4212TA RESET R936 100 R919 15K R991 47K R91810K R92847K L9021H D901 1SS291TA L901 10H R951 330K R952 10M A B

35、 C D E F G H I J K L M N O P Q R S T U V W X Y Z R993 100K D931 MA165TA D933MA165TA R990 100K C916 6.3V100 D951 LNJ301MPUJAD (DIGITAL S.WOOFER) R995 220 D954 SELS5923C (PLAY/ REC) R986 1.5K D306 SELS5223C () R939 1.5K C905 1000P C901 6.3V100 R935100 R934100 R9881K R93710K R9871K R926 2.2K C912 0.1 R

36、954 100K C926 1000P R9601.5K R9581K R999 100K R95947 R969 2.7K D902 1SS291TA C903 0.01 C902 10V1000 X902 (32.7kHz) C911 18P C910 20P X901 (6MHz) 1 3 2 D9051SS291TA EFIKLMNOQ R940 1K R9291K R9301K R9321K R9311K R976 100K R956 1K R957 1K C915 0.01 C925 1000P R953100 A B C D G H J C914 50V2.2 D904 MA16

37、5TA A B C D E A B C D E F G HIJKL M N O P Q R S TU V W X 1 11 21 2 12 22 3 13 23 4 14 24 5 15 25 6 16 26 7 17 27 8 18 28 9 19 29 10 20 30 3132333435363738394041424344454647484950 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 9

38、1 92 93 94 95 96 97 98 99100 -VP P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31 P32 VDD4 P33 P34 P35 P36 P37 P38 REGIN0 REGIN1 8G REMOCON RDS DATA RDS CLK HP SW MIC DET VR JOGA VR JOGB NC(GND) SH REQ KEY KARAOKE KEY TU VDD1 XC OUT XC IN Vss X OUT X IN RESET AC IN SEL/ TU

39、NER SEL TUNER ST/ AV.6CH LC72 CK LC72 DI/ ST LC72 CE LC72 DO CHECK STAND-BY TIMER S.W.LED LOUNGE CHORUS MUTE NC POWER Vss2 VDD2 MUTE2 NC MUTE3 SHCS SHDO SHDI SHCK E DET CR TIMER SD VDD3 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 1G 2G 3G 4G 5G 6G 7G R994100K U R949 4.7K R950 100 :AUDIO SIGNAL LINE: POSI

40、TIVE VOLTAGE LINE: NEGATIVE VOLTAGE LINE 5.1V 5.1V 2V/2ms.DIV. 5V 0V 5V 0V T10ms. 2V/2ms.DIV. 0V 5V -30.1V -30.1V -29.3V -29.3V -29.3V -26.3V -20.5V -29.3V -29.3V -29.3V -23.5V -20.5V -23.4V -23.4V -23.7V -20.7V -29.6V -29.6V -29.6V -23.7V -26.6V -26.5V 5.1V -29.5V -29.5V -26.5V -17.2V -5.3V -10.3V

41、0.4V 0V -23.4V -20.5V -26.3V -26.3V 5.1V -23.4V -20.5V -26.2V -29.2V -26.2V -26.2V -26.1V -26.3V -23.5V -23.5V -25.6V -27.5V -27.5V -25.5V -23.5V -25.6V 5.1V 2.6V 2.6V 0.6V 5.1V 0V 0V 1.4V 5.1V 5.1V 5.1V 2.3V 2.3V 2.7V 1.6V 5V 2.2V 0V 5.1V 5.1V 4.6V 0V 0V 2.5V 0V 5V 0V 5.1V 3.3V 1.9V 1.9V 1.4V 0V 5.

42、1V 5.1V 4.8V 0V 0V 0V 0V 0V 0V FM / AM -30V 4V T5.5ms. 0V 0V 4V T5.5ms. -30V FM / AM 3.3V P-P F=6MHz FM / AM 4.2V P-P F=6MHz FM / AM 5.2V P-P F=32.7kHz FM / AM 5.2V P-P F=32.7kHz FM / AM 2V P-P F=32.7kHz FM / AM 131415161718192021222324 SA-DV280(EB,EG) OPERATION, MAIN CIRCUIT DIAGRAM SCHEMATIC DIAGR

43、AM-2 W901B W902B IC151 C1BB00000527 RDS SIGNAL DEMODULATOR 123 X151 R158 1K R154 100K R153 100K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 BACOM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Q902 UN411FTA MUTING CONT. A B C 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 VREF HPX IN VDDA VssA FL OUT C IN TEST X OUT IDR RDCL R

44、DDA RST MODE VDDB VssB X IN R962 22K VR901 EVQVBXFK124B (VOLUME) R945 100 R961 22K R943 100 C917 0.01 C155 1000P C153 1000P C160 1000P C159 6.3V47 R152 1K R151 1K C154 560P C158 6.3V47 C151 16V10 D907 MA165TA M BC R946 1K C909 1000P C918 6.3V100 DEA R941 1K L153 1H R155 120 D151 MA4051MTA L151 100H

45、L152 100H C156 47P C157 47P A B C D E F G H I J K L N O Q S T AOPERATION CIRCUIT R942 2.2K R974 1K C931 16V10 R965 3.9K R966 3.9K D961 MA4075MTA R975 22K D906 MA165TA U N 1 2 3 Z901 B3RAD0000028 (REMOTE SENSOR) R157 1K C152 330P W902A W901A CP101 C F G B A E D DET Rch IN CE Lch IN DI DO CL +B(2) SD

46、+B(1) T.GND Q707 2SB1417PQTA REGULATOR Q723 2SC3940AQSTA REGULATOR R763 4.7K R2301K R2291K D721 MA4300MTA R708 4.7K C707 0.047 C706 35V10 C737 50V100 To SOUND PROCESSOR (SH-DV280) To TUNER UINT on SCHEMATIC DIAGRAM-5/11,12-A C735 0.047 B A R563 2.7K R564 2.7K C660 16V10 C659 16V10 R615 4.7K R614 4.7

47、K R631 3.9K R632 3.9K C202 0.1 R203 100K R204 100K C201 0.1 C602 16V10 C708 0.047 R211 270 D201 MA4056MTA R687 1.5K R688 1.5K Q605,606 2SD2144STA MUTING Q605 Q606 R683 1K R617 4.7K 2 1 3 4 5 6 7 8 9 10 11 CB AX0X1VDD GVssINHZ0Z1Y1Y0 161514131211109 12345678 IC201 BU4053BCFE2 SIGNAL SELECTOR C655 16V

48、10 C656 16V10 R606 4.7K R605 4.7K 2 15 3 4 5 6 7 8 9 10 11 12 13 14 1 2 15 3 4 5 6 7 8 9 10 11 12 13 14 1 20 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 K L M I J E F C D E F G E F G A B C D A B G H C601 16V10 R598 2.2K R597 2.2K R205 100K H G R202 100K B C D E F C509 0.01 C510 0.01 R693 1K R692

49、 1K C664 16V10 C725 16V47 A C R696 47K Q609,610 2SD2144STA MUTING Q609 Q610 Q612 UN411FTA MUTING CONT. B C R694 22K R511 47 R509 47 R51247 R51047 W501 D719 RL1N4003N02 D720 RL1N4003N02 D717 RL1N4003N02 D718 RL1N4003N02 H D C R695 470 D611 MA4051MTA C740 16V10 C733 0.047 D737 MA4082LTA R764 330 MAIN CIRCUITB C731 1000P C741 0.1 TUNER Lch/C TUNER Rch A.GND Lch IN Rch IN +B(10V) SUR L SUR R S.W MIC -B(-10V) V.GND D.GND CS/ REQ CLK DATA CT GND SH FL1 SH FL2 SYNC R603 3.3K A B B R684 1K A C715 25V6800 C714 1000P D705 RL1N4003N02 A : POSITIVE VOLTAGE LINE : NEGATI