Technics-SJMJ50ED-md-sch 电路图 维修手册.pdf

《Technics-SJMJ50ED-md-sch 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Technics-SJMJ50ED-md-sch 电路图 维修手册.pdf（3页珍藏版）》请在收音机爱好者资料库上搜索。

1、A B C D E F G H 123456789101112 2 1 3 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TRACKING COIL FOCUS COIL 21 2 1 3 4 5 6 8 9 10 11 13 15 16 17 19 20 B C F G H I J K JKHI CDEFA FCS+ TRK- FCS- GGND1 F2 B A PDGND LD RF1 Vcc C LDGND RF2 D GGND2 VREF F1 APCGND APC A B C D A B D C G IC301 C0GBZ0000009 FOC

2、US/TRACKING COIL, TRAVERSE MOTOR DRIVE, SPINDLE MOTOR DRIVE, ROTARY DETECTOR C A B D A B C D E F G H I J K DBAC L TRAVERSE MOTOR R30110K CP302 M LK SPINDLE MOTOR G F E CP301 CP1 5 A D E L21 B 1413121110 123456 APC B F2 F1 A LDC D RF1 RF2 VREF PD GND VccLD GND 98 L 7 0.1 0.022 7 12 14 18 R3036.8K TRK

3、+ TP401TP402TP403TP404 1 U VW 1 3 4 2 4 2 1 3 U VW E F G H H C B A D C D A B R30539K C3043300P C3052.2 C306 2200P C3090.22 C3100.22 C3110.22 R302 1 C330 1 C307 4.7 3 45 44 43 40 3534323130292726 RMAX VCO VCOIN COMIN FIL GND PWM S1 S2 S3 VS RF FG UOUT COM VOUT WOUT SCOM SWO SWCO SVCO SVO SUO SUCO PGN

4、D4 BRK VS MODE CLK Vcc VG CPC2 CP2 CPC1 CP1 IN1R IN1F S/ S VS1 OUT1F OUT1R PGND1 OUT2R OUT2F VS2 IN2F MUTE IN2R 1011124567 25 20 19 24 22 21 15 14 13 18 17 16 8 46 42 39 38 37 3328 23 912 48 47 41 36 E F G H A B C D I J NO U T P 0 270 R117100 TP449 TP417 IC1 C1BB00000640 RF AMP Q1 2SB1295-6-TB LASER

5、 POWER DRIVE Q5 XP152A12C0MR POWER SUPPLY S G D C28 4.7 R5 1 C5 4V22 R2 470 C9 0.01 C24 0.01 R9 82K R4 100K R8 470K R7 22K C13 2P R3 390 C10 10P R1 11K C3 1 C40.22 1 2 4 5 6 7 8 9 10 13 14 15 16 17 1819 23 36 35 34 33 32 31 29 27 25 PPIT RVcc RF1 RF2 Vcc F1 F2 A B C D GHSW LDREF LDS LDO GND SETR BWC

6、T 3 11 12 20 21 22 24 26 30 28 VC VR WOO DD CC BB AA FF2 FF1 RGND BOTTOM PEAK HFL BHC PHC EQO EQI RFO C2 1 C20 4.7 I H D E C F K J L B G C8 0.22 C7 0.22 A C116 8200P R113 10K V W R Q XY A B C D E F G H I J S C1 3300P C130 1 R116 10K R115 39K TP405 TP406 TP407 MD OPTICAL PICK-UP SJ-MJ50(EB) CIRCUIT D

7、IAGRAM 2.2V 1.4V 2.2V 0V 0V 1.4V 0V 0.7V 0.7V 0.7V 1.4V 0V 0V 0V 0V 0V 2.2V 2.2V 5.6V 1.8V 2.2V 0V 2.2V 1.4V 0V 0V 0V0V 0V 0.6V 0.3V 0V 2.2V 2.2V 2.2V 1.4V 2.2V 0.2V 0.3V 0.4V 1.1V 0.5V 0.6V 2.2V 2.2V 0.6V 0.6V 2.2V 2.2V 1.5V 2.2V 1.8V 2.2V 2.2V 0V 1.1V 0V 0V 1.5V 1.5V 1.1V 1.1V 1.1V 1.1V 0V 1.4V 0.

8、8V 0.6V 1.1V 1.1V 1.1V 0V 0V 1.5V 0V 0V 0V 0.9V 0.9V 0.9V 0.9V 0.7V 0.7V 2.2V 1.1V 1.1V 2.2V 0V PLAY 0.25V P-P 0.5s. 0.1V/DIV. PLAY 0.5V P-P 0.5s. 0.1V/DIV. :POSITIVE VOLTAGE LINE:PLAYBACK SIGNAL LINERadioFans.CN 收音机爱 好者资料库 131415161718192021222324 SJ-MJ50(EB) CIRCUIT DIAGRAM IC101 C1BB00000639 DIGI

9、TAL SERVO PROCESSOR C106 0.1 R102 2.2K C105 0.1 R1093.3K X101 (16.9344MHz) 1 2 3 4 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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 96 95 94 93 92 91 90 89 88 87 86 85 84 83

10、82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 120 119 118 117 116 115 114 113 112 111 110 10910810710610510410310210110099 98 97 Vss SCLK SOUT S IN NC NC NC ADIPWO AVss1 AVDD1 DD CC BB AA FF2 PEAK FF1 AVDD1D ISET VCVss FR VCVDD PDO HFL RESETB TEST1 EFMIN SLCISET SLCO VDD VDD NC LDREF NC NC N

11、C MRASB MWEB Vcc2 MD1 NC MD0 NC PCK Vcc2 Vss DEFECT MD3 NC MD2 NC Vss MCASB MOEB NC NC TEST3 SPPWMF SPPWMR Vss Vss DDOUT AVss OUTR OUTL AVDD F16M FSEQ INTB WRQB DO DI CE CL FG TRPWMR TRPWMF FOPWMR FOPWMF SLD3 SLD2 SLD1 SLD0 VDD FAST FOK VP SLPWMR SLPWMF Vcc2 Vcc2 XIN XOUT ENH LRCO DDATA BCO NC MAD5

12、MAD4 MAD9 NC MAD8 MAD7 MAD6 Vss Vcc2 MAD3 MAD2 MAD1 MAD0 MAD10 NC SMON3 SMON2 SMON1 SMON0 TEST2 SHOCK Vss R112 220K R120 47K C103 1 R10815K R1016.8K C108 1000P C102 0.01 R103 6.8K C117 1000P R106 1M A B C D E F G I H J C402 4.7 L401 C407 4.7 C115 0.1 C107 0.1 R611 470 ABC D E F G H I J K E O G H J I

13、 A B C N M L D K C406 4.7 N O P QL AB S G D S G D D406 MA2YD2100L R402 470K Q403 XP152A12C0MR POWER SUPPLY Q402 XP152A12C0MR POWER SUPPLY L403 FX C101 0.01 R104 47K TP408 TP411 R610 47 M C113 0.1 IC201 MN101C32GAF2 SYSTEM CONTROL IC202 AK93C45BH-L EE PROM X201 (4MHz) IC203 C0EBC0000032 RESET R216 22

14、0K C204 0.1 L201 S207 (COVER OPEN/ CLOSE DET.) C211 0.47 C215 0.22 IC601 C0JBAF000439 D-TYPE FLIP FLOP IC602 NJU7015RTE1 BUFFER AMP Q 910111213141516 87654321 CK Q3 / Q3 D3 D4 / Q4 Q4 Vcc GND Q2 / Q2 D2 D1 / Q1 Q1 / CLR P M N 4321 8765 R601 10K C604 100P R606 39K R605 39K C603 100P L M R201 10K OUTC

15、 (LD PWM) SSCLK SSDW ZDTCR ADJ OK EEP CS EEP CK EEP DATA O EEP DATA I MUTE A MODEL2 (MOD CNT) P.CONT L O C602 220P C601 220P R603 47K C609 4V10 C606 100P C605 100P R609 22K R607 39K C607 4V10 C608 0.1 R208 220K 8 7 6 5 1 2 3 4DO DI CLK CSVcc NC NC GND R209 10K C214 0.22 R222100K R223100K R215 22K P

16、C201 0.01 R202 47K 1 23VDD RSTGND4 NC C210 0.01 C220 100P TP427 S208 (HOLD) ONOFF TP428 C221 1000P Q R S E F G H J I A K B C D SETR SSDR SELAD 60 61 62 63 64 68 75 76 79 59585756535250494847464544434241 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 19 18 17 16 15 14 13 12 11 10 9876543

17、21 RESETB OPEN SW WRQB INTB DCIN WAKEUP BWCT CHARGE RST BUZZER REM DATA MMOD XO XI Vss OSC1 OSC2 VDD VREF+ VPP REM KEY KEY IN BATT VREF- LED CNT TEST OUT RFCONT LDON GHSW ST READ PPIT DATA FLASH PLAYKEY CLK FLASH LSI STATUS BATT SW DOCTOR MUTE B MUTE MODE 70 72 71 LINK IN HOLD MODEL1 74 65 66 67 69

18、80 77 78 73 54 5551 20 ZDTCL REM WUP ELON FOK SHOCK DRV STBY SP STBY T U VW Y C D G HI J F E A B C506 1 C504 1 R203 220 K C203 4.7 C202 100P C C212 0.01 (AN3) (AN4) (AN5) TP421 SX206 (/) :POSITIVE VOLTAGE LINE:PLAYBACK SIGNAL LINE 2.2V 2.2V 2.2V 2.2V 2.2V 2.2V 2.2V 2.2V 2.2V 0V 0V 0V 0V 2.2V 1.3V 2.

19、2V 0V 2.2V 0V 2.2V 2V 0V 2.2V 1.1V 2.2V 1V 1.1V 1.1V 1.1V 1.1V 1.1V 2.2V 0V 0V 0V 2.2V 1.3V 0V 2.2V 1.1V 2.2V 2.2V 0V 0V 2.2V 0V 0V 2.2V 1.4V 1.1V 1.1V 1.1V 1.1V 1.5V 2.2V 1.5V 0V 0V 1.3V 2.2V 2.2V 2.2V 0V 0V 2.2V 2.2V 0V 1.5V 1.5V 0V PLAY 0.7V P-P 0.5s. 0.1V/DIV. PLAY 0V 2.1V 0.2s. 1V/DIV. 1.4V P-P

20、 F=16.9344MHz PLAY 0.5V P-P F=16.9344MHz PLAY 1.3V 2.2V 2.2V PLAY 0V 2.2V T10ms. 2.2V 2.2V 1.4V 1.1V1.1V1.1V 1.1V1.1V1.1V2.2V 2.2V1.1V1.1V1.1V1.1V1.1V 2.2V1.1V1.1V1.1V1.1V 2.2V0V 0V 0V 0V 2.2V 0V 0V 0V 0V 2.2V 0V 2.2V 2.2V 0V 0V 0V 0V 2.2V 2.2V 2.2V 2.2V 1.4V 2.2V 2.2V 1V 1V 2.2V 2.2V 0V 2.2V 0V 0V

21、2.2V 0V 0V 2V 0V 0V 2.2V 2.2V 2.2V 0V 2.2V 0V 0V 2.2V 2.2V 2.2V 2.2V 0V 0V 0V 0V 2.2V 2.2V PLAY 0V 2.2V T10ms. 0.9V P-P F=4MHz PLAY 1.4V P-P F=4MHz PLAY RadioFans.CN 收音机爱 好者资料库 A B C D E F G H 252627282930313233343536 A B IC402 C0DBAFZ00021 DC-DC CONVERTER 54 CEV OUT EXT VDD GND 123 L R G S G K Q401

22、 B1CFNC000001 SWITCHING Q201 2SD1819ASTX POWER SUPPLY CONT.(REMOTE) Q202 B1ADNB000003 POWER SUPPLY(REMOTE) Q406 2SB1218ASTX POWER SUPPLY C404 4V33 C415 0.01 R401 2.2M R405 1M C410 0.1 R404 270K C206 100P R221 10K C502 0.1 C516 0.22 C515 0.22 Z401 181716151413 123456 19 20 21 22 23 247 8 9 10 11 12 B

23、EEP OUT R BEEP OUT L IN R IN L Vcc1 MT TC Vcc2 OUT R PWR GND OUT L DET AGC IN VREF LPF1 BST NF1 LPF2 BST NF2 BST OUT VREF IN GND BEEP IN BST SW MT SW PW SW IC501 TA2131FL POWER AMP R506 10M C523 0.1 C507 2.5V220 C508 2.5V220 R507 10 R504 33K C511 330P C512 330P C509 4.7 C503 0.47 C517 4.7 R512 10M C

24、505 4V10 TP436 TP437 TP440 TP439 54 CEV OUT EXT VDD GND 123 Q404 B1CFNC000001 SWITCHING IC401 XC6367A151MR DC-DC CONVERTER D402 MA2YD2100L C405 6.3V10 TP429 R219 100K R207 470 L406 L402 S G D S G D R509 220 L501 L502 C411 0.01 2 6 3 4 5 1 2 1 SX204 () CP201 DX802 (ILLUMINATION) S202 (VOL-) SX201 (VO

25、L+) D401 B0JCMB000001 D405 MA2Z74800L R412 680K C403 33P D404 MA2Z74800L C401 4V33 R218 27K G D S Z402 CHARGING CONTROL TERMINAL TP443 R408 100 C412 0.01 B A RX205 6.8K R204 3.3K A B E F J M L H I B G Q408 XP4601TX BATT.CHARGE CONT. R403 470K R407 10K R406 470K Q407 2SB1218ASTX BATT.CHARGE CONT. Q40

26、5 XP151A13A0MR BATT.CHARGE CONT. D C A C LED UNIT R413 470K TP431 TP430 R410 0 ICX403 XC6372C501PR DC-DC CONVERTER 5 4CE GND V OUT LX 1 2 3 DX403 MA2YD2100L RX214 220 CX413 10V22 LX405 Q203 DTC114YETL LED DRIVE RX206 22K SX203 () K SJ-MJ50(EB) CIRCUIT DIAGRAM JK501 HEADPHONES 3.5mm STEREO 22 1 LR6 (

27、UM-3,AA SIZE) BATTERY1.5V BATTERY CASE 1 RECHARGEABLE BATTERY1.2V 0.6V 0.6V 0.6V 0.6V 0.6V 0V 0V 2.2V 0.6V 0.6V 0.6V 1.4V 1.2V 2.2V 0.6V 0.6V 0V 0V 1.4V 1.5V 2.2V 2.2V 0V 0V 1.4V 1.5V2.2V2.2V 1V 1.4V 1.4V 1.4V 1.4V2.2V0.9V 0V 0V 2.2V 2V 1.9V0V 0V 0V 2.2V 0V 2V 0V 0V 2.2V 2.2V 2.2V 2.2V 0V 0V 2.2V 1.4V 2.2V 5V :POSITIVE VOLTAGE LINE:PLAYBACK SIGNAL LINERadioFans.CN 收音机爱 好者资料库