Technics-RSHD515-tape-sch 电路图 维修手册.pdf
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1、9 Counter reset button (C-RESET) : Reverse mode select button (REV MODE) ; CD edit recording button (CD EDIT) Record pause button and indicator (REC PAUSE) ? Dolby noise reduction switch (DOLBY NR) Tape Program Sensor switch (TPS) A Fast forward/rewind buttons (, ) B Playback buttons and indicators
2、(2, 1) The color of the indicator depends on the operation taking place. If stopped, fast forwarding or rewinding: orange If playing, recording, or carrying out TPS: green C Stop button (?) OPEN/ CLOSE C-RESET DOLBY NRTPS CD EDIT REC PAUSE ON OFF ON OFF REV MODE 9 10 11121314 15161718 19 RadioFans.C
3、N 收音机爱 好者资料库 BA7755AFCXA1552M-T4A1898QT6BCM37478M4456FBA6418NRVSGP2S24BC 2SD2137PQTA2SA1797QT101 2SD874QRSTX 2SB710AQRSTX 2SD1328TX 2SD601ATX 2SD601ARTX UN5214TX DTA114EUT106 DTC114EUT106 DTC143ZUA106 DTC144EUT106 2SD1862QRTV62SJ106GBT85L 2SJ163PQRTX MA728TXMA704ATXRL1N4003N02RVD1SS133TA MA29TATA MT
4、ZJ10BTA MTZJ5R1BTA MTZJ5R6BTA MTZJ9R1CTA MA111TX MA112TX MA8039TXMA8047MTXLNJ201LPQJASML79420C 1 4 5 8 1 8 9 16 12 13 1 25 36 24 37 48 1 45 44 56 2928 16 17 9 1 1 2 3 4 14 23 E C B C B E D G S E C B C B E A Ca A Ca Ca A A Anode Cathode Anode ACa Anode Cathode A Ca Anode Cathode A Ca Cathode A Ca Cat
5、hode Anode A Ca Anode Cathode Anode Cathode A Ca Anode Cathode Anode Cathode Anode Cathode MA723TA C E B A Ca Anode Cathode Anode RadioFans.CN 收音机爱 好者资料库 B A + To CD PLAYER & TUNER CP102 CP901 CP903 CP902 CP305 CS971 CN904 FW904 FW905 CN905 FW901 FW903 AMAIN P.C.B. BMECHANISM P.C.B. ELED(L) P.C.B. D
6、 LED(R) P.C.B. COPERATION P.C.B. CAPSTAN MOTOR R/P HEAD, ERASE HEAD 1 . 5 2 4 1 . . . 5 1 . . 4 1 . . . . 6 1. . . . . . . . .11 1. . 4 11. . . . . . . . .1 1. . . 6 1. . 4 3. 1 3. 1 3. 1 3. 1 RadioFans.CN 收音机爱 好者资料库 CXA1552M-T4 IC201 DOLBY NR REC EQ 8765 4 3 21 R101, C101 (R102, C102) Q103 (Q104) 1
7、 42 (43) 41 (44) 40 (45) 39 (46) 28 (9) REC EQ AMP 353634 3245121013111415161719 23 24 25 26 LATCH SHIFT REGISTER MUTE REC EQ CONT. P.B. EQ CONT. AGC AMS 38(47) 30(7) 29 (8) 21221820 31 (6) I C 1 0 1 Q111 2 3 Q106 (Q105)14 (3) 16 (1) 15 11(6) R/P 10(7)9(8)5124 +B3 2 +B3 +B3 VR103(102) PLAYBACK GAIN
8、ADJ. R/P HEAD (L ch) +B3 Q112 Q114 (Q113) Q101 (Q102) ATT2 ATT1 ATT3 SCDET ON/OFF +B3 +B4 +B3 Q201 (Q202) AN1898QT6BC IC101 R/P EQ AMP BA7755AF IC103 R/P SELECT BA6418N IC801 MOTOR DRIVE D971SOLENOID Q817,822 +B2 Q811814 +B2 19 73 +B1 Q818,819 6 M REEL MOTOR Logic control 5 D805 Q107 +B1 CAPSTAN MOT
9、ORM VR803 (TAPE SPEED ADJ.) Q815,816 Q303,304 BIAS OSC D301 ERASE HEAD +B3 L301 Q301,305,306 S973 (ATS/CrO2) S976 (ATS/Metal) BIAS OSC CONTROL (CrO2/ METAL) TP205 ()TP206 Q302 N TP301TP302 +B1 SOLENOID DRIVE POWER SUPPLY TPS DRIVE SWITCH- ING SWITCH- ING MUTING CONT. R/P SELECT POWER SUPPLY MOTOR DR
10、IVE NOTES: PLAYBACK SIGNAL LINE : RECORDING SIGNAL LINE () indicates pin No. Right channel. 38 DMT TPS 25 48 RMF 47 RMR 4 HSPD 5 SOL 6 CSOL 46 CAP S971(MODE) S974(R.REC.INH.) S972(HALF) AD SW 3 4 5 Z971 LADDER RESISTOR+B4 2 1 6 10 S803(C.HOLDER OPEN DET.) S804(C.HOLDER CLOSE DET.) RECINHF SW 7 S975(
11、F.REC.INH.) RPS 8 RPT 9 M37478M4456F IC701 MICRO COMPUTER KEY SWITCH 28 RESET 35 A DATA 36 A CLK A LATCH 37 AVss Vss VREF +B4Vcc 15 23 22 21 Q706, 709 +B4 CLOSE SW 49 OPEN SW 52 42 REC LED +B2 Q904,905 D902,903 () Q901903 41 FWD LED 40 REV LED 39 PLAY/STOP 43 BLU LED D901 (REC PAUSE) +B2 +B1 D907 (L
12、IGHT) Q707,708 D905 (LIGHT) +B(13V) 1 CS 8 JK601 2 3 4 5 6 7 9 12 CT +B(10V) D.GND CLK DATA 11 10 TAPE REQ SYNC Rch OUT T.GND13 14 15 16 17 18 19 R CH CLK 54 3 S REQ Q701 30 SYNC D602 D601 CS 53 +B4 Lch OUT Rch IN Lch IN TP204 R CH TP204 TP201 TP202 TP203 DATA IN DATA OUT 2 55 Q702,703 D708,709 TP70
13、1 Q603 D609,613 +B2 +B1 Q602,605,606 Q609 +B3 TP601 TP602 TP603 D710 +B4 +B4+B4 RVSGP2S24BC IC971 RVSGP2S24BC IC972 DOLBY 14 KEY2 13 C OFF ON S911 (DOLBY NR) Q906 19 18 X OUT X IN X701 (8MHz) ATS 11 NC NC NC NC NC TP702 A.GND To TUNER/ CD PLAYER BLOCK DIAGRAM REGULATOR /STABILIZER REGULATOR REGULATO
14、R INTERFACE INTERFACE LED DRIVE LED DRIVE LED DRIVE LED DRIVE RESET 47K 47K 47K 47K S G D S G D S G D S G D 37 38 39 40 41 42 43 44 45 46 47 48 123456789101112 13 14 15 16 17 18 19 20 21 22 23 24 252627282930313233343536 PB EQ CTL REC EQ CTL REC EQ REC EQ IREF AMS 10dB AMP MUTE AGC SHIFT REGISTERS L
15、ATCHES 10dB AMP 1234 5678 3 1 2 4 5 N B A R171 6.8K R176 3.9K R128 2.2K R127 2.2K C133 50V1 R133 10K R126 100K L302 C304 10V100 C150 0.1 1 2 3 C303 4700P R309 4.7K C309 6.3V47 R310 4.7K R311 4.7K C308 3300P C310 0.033 R308 1K C307 1000P C323 1000P C311 0.033 C306 0.039 R307 2.2 Q301 2SD601ARTX BIAS
16、OSC CONT. Q303,304 2SD874QRSTX BIAS OSC Q303 Q304 R306 22K Q306Q305 R305 10K R304 22K R303 6.8K C305 50V0.1 R301 10K R313 1 C312 50V2.2 6 5 4 L301 Q305,306 DTC144EUT106 BIAS OSC CONT. Q302 2SD1328TX SWITCHING(REC:ON) R302 1.8K R177 27K IC103 BA7755AF R/P SELECT TP301TP302 A B C C120 25V4.7 R114 10K
17、R130 27K R129 33K C114 330P C116 25V4.7 R154 1K R158 22K R132 100K C121 50V0.33 C124 1000P C126 10V100 C125 10V22 R118 1K R119 33 R120 33 R122 2.2M R121 2.2M C128 6.3V47 C127 16V10 C113330P C115 25V4.7 R153 1K R157 22K (Lch) TP203 A B (Rch) TP204 R113 10K C119 25V4.7 C130 330P R123 100K R117 12K R10
18、5 1K BA R106 1K C112 0.018 C144 470P A B R131 5.6K R108 82 C108 6.3V47 C123 0.015 C141 470P C111 0.018 R107 82 C107 6.3V47 R170 4.7K R103 100K C101 220P R101 6.8K CP102 TP101 C102 220P R102 6.8K R104 100K A B C R110 330K R137 330K C1220.022 C109 560P R111 100 A B C110 560P R112 100 R178 330K Q102 Q1
19、04 Q103 Q101 Q103,104 2SJ163PQRTX HEAD SELECT (PLAY:ON) IC101 A1898QT6BC R/P EQ AMP Q101,102 2SJ163PQRTX HEAD SELECT (REC:ON) A L ch R/P HEAD ERASE HEAD R ch 9.3V 9.3V D301 MA111TX MAIN CIRCUIT 9.3V 9.3V 8.2V8.2V4V0V4V4V4V4V0V4.8V 0V 4.9V 0V 0V 9V 0V 9V 9.3V (0V) 0V 0V 0V 9.2V (0.1V) 1.2V 2.6V 2.6V
20、1.3V 0V 0V 1.3V 2.6V 2.6V 3.3V 8V0.6V1.2V0V (2V) 4V4V4V4V4.9V0.1V8.7V (0.1V) 0V0V (4.5V) 8.7V 0V0V 0V (8.6V) 0V0V 0V (8.6V) 0V0V 8.7V (4.5V) 5.7V5.7V5.7V5.7V 9.3V0V (9.2V) 0V (0.7V) 0V 0V 0V (0.6V)9.3V 0V 0V (0.6V) 0V 9.3V (0.6V)0V (1.3V) 0V (0.6V) 0V 0.1V (0.6V) 0V 0.1V ERASE CURRENT CHECK POINT LI
21、NE IN POINT :POSITIVE VOLTAGE LINE:PLAYBACK SIGNAL LINE:RECORDING SIGNAL LINE S G D S G D 47K 10K S G D S G D 10K 10K ATT2 ATT3 ATT1 SCDET R/P ATT2 ATT3 ATT1 SCDET ON/OFF 12345678 161514131211109 A B AB TP201TP202 (Rch)(Lch) D C R242 8.2K R241 8.2K 10K 10K Q112 DTA114EUT106 SWITCHING CONT. 24 31 24
22、31 123456 4.7K 25K 50K 50K 50K 4.7K 4.7K 25K 50K 11 2 1 3 4 5 6 7 8 9 10 E F D R974 39K R973 39K R971 220 SOLENOID D971 RVD1SS133TA CS971 A B C D E F G S975 (F.REC.INH.) GC S971 (MODE) S974 (R.REC.INH.) S972 (HALF) Z971 S976 (ATS/METAL) AB S973 (ATS/CrO2) IC971,972 RVSGP2S24BC PHOTO INTERRUPTER IC97
23、1IC972 B C134 50V3.3 R145 18K FE C206 50V1 C240 680P R166 100K R179 330K R135 330K Q106 Q105 VR102 20K(B) R148 5.6K C106 25V4.7 C146 3300P A B C145 3300P C105 25V4.7 VR103 20K(B) R149 5.6K R172 1.2K R165 100K C205 50V1 C239 680P C218 50V0.1 Q113,114 2SD1328TX MUTING Q113Q114 R173 1.2K D201 MA111TX R
24、231 330K Q201 Q202 R207 100K C215 16V10 R221 220 TP206 R215 15K C213 25V4.7 R213 3.9K C221 50V0.68 R230 10K C223 16V10 C220 10V470 C219 16V100 R223 22 R220 22 R174 10K Q107 DTA114EUT106 R/P SELECT Q105,106 2SJ163PQRTX SWITCHING TP205 R216 15K C214 25V4.7 R214 3.9K C222 50V0.68 C217 50V0.1 R222 220 R
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