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Panasonic SA-AK78, Service Manual

The Panasonic SA-AK78 Service Manual is a comprehensive guide that allows users to maintain, repair, and optimize their SA-AK78 audio system. This manual can be easily downloaded for free from our website, providing users with step-by-step instructions and essential information to enhance their audio experience.

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DECK P.C.B
(PCI-DECK78-MONT)

48

SA-AK78

Summary of Contents for SA-AK78

Page 1: ...ized copying and distribution is a violation of law SA AK78 Colour S Silver Type Area GC Asia Latin America Africa and Middle Near East TAPE SECTION AR2 MECHANISM SERIES CD SECTION RAE0152Z 3 TRAVERSE DECK SERIES Input impedance AUX 1 AUX 2 10 kΩ MIC 600 Ω FM Tuner Section Frequency range 87 50 108 00 MHz 50 kHz step Sensitivity 1 8µV IHF S N 26 dB 1 5µV Antenna terminal s 75 Ω unbalanced AM Tuner...

Page 2: ...Function 10 11 Measurements and Adjustments 11 12 Terminal Function of IC s 13 13 Block Diagram 16 14 Schematic Diagram 26 15 Printed Circuit Board 47 16 Wiring Connection Diagram 57 17 Troubleshooting Guide 59 18 Parts Location and Replacement Parts List 60 CONTENTS Page Page 1 Before Use Be sure to disconnect the mains cord before adjusting the voltage selector Use a minus screwdriver to set the...

Page 3: ...r connection wires are shorted or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used If this occurs follow the procedure outlines below 1 Turn off the power 2 Determine the cause of the problem and correct it 3 Turn on the power once again after one minute Note When the protection circuitry functions the unit will not operate unless the power is ...

Page 4: ...rea where the traverse deck optical pickup is placed and ground the sheet Caution The static electricity of your clothes will not be grounded through the wrist strap So take care not to let your clothes touch the traverse deck optical pickup Caution when Replacing the Traverse Deck The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown B...

Page 5: ...gelegten Laserdiode gefährlich ist 2 Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen 3 Nicht mit optischen Instrumenten in die Fokussierlinse blicken 4 Nicht über längere Zeit in die Fokussierlinse blicken ADVARSEL I dette a apparat anvendes laser CAUTION THIS PRODUCT UTILIZES A LASER USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED H...

Page 6: ......

Page 7: ...7 SA AK78 ...

Page 8: ...sure prevention tab remove from right side only and close the cassette holder 5 Press REVERSE FM MODE BP PREV Tape will be stop after 2 seconds 6 Load a pre recorded tape with both side record tabs intact and close the cassette holder 7 Press PLAY TUNE TIME ADJ SELECT After TPS function tape will stop automatically 8 Press REC STOP Tape will not move 9 Press STOP TUNE MODE to indicate Error code I...

Page 9: ...ds 2 CD tray opens automatically F16 CLAMP switch S4 NG Check Replace 3 Does not startup when PLAY button is pressed F17 BOTTOM switch S5 NG Check Replace 4 Transmission error between CD servo LSI and micon F26 CD does not function This error occurs when the POWER is ON for the CD block and an error is detected after the transmission has started 5 Startup fails even when you insert CD or the selec...

Page 10: ... 2 Press and hold the STOP TUNE MODE button for at least 2 seconds 3 While pressing the STOP TUNE MODE button press FF MEMORY button for at least 2 seconds 4 will appear on the FL display unit is in the CD test mode 10 2 CD Automatically Adjustment result indication Under CD test mode pressing the numeric key 0 on the remote controller will display the auto adjustment result FLOCK TLOCK and CLVS s...

Page 11: ...ortion 8 kHz 20dB of the test tape QZZCFM in the forward play mode Vary the azimuth adjusting screw until the output of the R CH PB OUT R are maximized 2 Perform the same adjustment in the reverse play mode 3 After the adjustment apply screwlock to the azimuth adjusting screw 1 Set the tape edit button to NORMAL position 2 Insert the test tape QZZCWAT to DECK 2 and playback FWD side the middle por...

Page 12: ...dard value 19 4mV Normal 27 5mV CrO2 Erase voltage for Deck 2 Standard value more than 100mV Normal more than 150mV CrO2 1 Set the unit to AUX position 2 Insert the Normal blank tape QZZCRA into DECK 2 and set the unit to REC mode use REC STOP key 3 Adjust L1201 so that the output frequency is within the standard value Standard Value 98 8 kHz Cassette Deck Section 11 1 3 Bias and Erase Voltage Che...

Page 13: ...ut 23 PC O Spindle motor ON output L ON Pin No Mark I O Function 15 RFDET O NRFDET output L detection 16 PDOWN O Power down input 17 OFTR O OFTR output 18 NC O N C 19 ENV O 3T ENV output 20 NC I N C 21 NC I N C 22 TEN I TE amp input 23 TEOUT O TE amp output 24 FEOUT O FE amp output 25 FEN I FE amp input 26 VREF O Reference voltage output 27 TBAL I Tracking balance control 28 FBAL I Focus balance c...

Page 14: ... O CT timer control No Mark I O Function 66 CLVS O Spindle servo phase synchronizing signal output H CLV L rough servo 67 CRC O Sub code CRC checked output H OK L NG 68 DEMPH O De emphassis ON signal output H ON 69 RESY O Frame re synchronizing signal output 70 IOSEL I Mode Switching Terminal 71 TEST I Test input 72 AVDD1 I Power supply input for analog circuit 73 OUTL O Left channel audio signal ...

Page 15: ...k 37 XCOUT I O X tal oscillator f 32 768 kHz sub clock 38 XIN I X tal oscillator f 8 0 MHz main clock 39 XOUT O X tal oscillator f 8 0 MHz main clock 40 VSS Ground 0V 41 MBP1 O MPU beat proof output 1 42 MBP 2 O MPU beat proof output 2 43 SD I Tuner signal detect input 44 DO ST I Tuner DO ST input 45 56 GRD12 GRD1 O LCD grid signal output 57 89 AND33 AND1 O LCD segment signal output 90 REGION IN I...

Page 16: ... VREF 22 17 16 D4 D4 11 10 D1 D1 13 12 D2 D2 TRV TRV M 1 IN3 24 IN4 23 15 14 D3 D3 RST PGND1 PGND2 8 19 B1 7 20 PVcc1 PVcc2 IN1 6 IN2 3 PC2 4 TRD FOD TVD ECS ECM PC ENV OFTR RFDET FE OUT VCC VREF GND TEOUT PDOWN FBAL TBAL PDF PDE PDB LDON PDA LD LPD RF RFIN CSBRT CEA E E F F B C C A D D SP SP M Vref VREF TJ702 TEIN 22 RF TJ701 BDO DET 12 BDO FE IN 25 LDON CD CHANGER SECTION SEMICONDUCTOR LASER PHO...

Page 17: ...36 RFDET OFT 10 43 40 SENSE WVEL LDON LDON FLOCK TLOCK FBAL FBAL TBAL TBAL FOD FOD TRD TRD TVD TVD VREF VREF TRV KICK DSLF2 DSLF2 DMUTE BCLK SRDATA LRCK PC PC ECS ECS ECM ECM IPFLAG FLAG 11 12 30 31 28 27 22 29 21 26 42 16 1 3 2 23 25 24 64 65 6 TX V CC 5V 77 71 TEST 18 RST B2 B2 DSLF2 45 IREF B2 B2 X701 16 9344MHz RST B2 RESY AV DD 1 72 B2 1 BIT DAC PWM LOGIC A D CONVERTER DSL PLL VCO VCO 8 TIMES...

Page 18: ...6 P01 37 P00 S2 TRAY POSITION 2 DET 38 P34 S3 OPEN DET 39 P33 S4 CLAMP 12 13 9 10 8 7 GND SW5V Vcc B6 Q451 452 PLUNGER M RM1 LOADING MOTOR 1 2 10 5 6 7 8 B6 TA7291P IC1 MOTOR DRIVE 4 D2 Q1 30 P07 32 P05 33 P04 SW5V D1 POSITION SENSOR 31 P06 P02 35 14 CD P B signal M CS M CK M SI M REQ M SO M RST RXO 12 TXO 11 10 CLK 9 6 CNTR0 INT1 S701 REST 21 3 15 AV SS CNV SS V SS 34 P03 B2 41 To MAIN SECTION 3 ...

Page 19: ... B5 B FM SD PLLCE PLLDT DO STEREO SW 17 LA1833MN FM AM I F AMP DET AM OSC MIX FM MPX 15 PILOT CANCEL 16 VCO FF FF FF AM DET DECODER AM 6 MONO 12 19 Vss POWER ON RESET LC72131M PLL FREQUENCY SYNTHESIZER B3 GND 5 7 ST MONO FM AM SD FMDET FM IF IN OSC OUT AFC OSC AM RF IN AGC AM OUT DET OUT PILOT IN MPX IN PILOT OUT Lch 14 Rch 17 18 AIN AOUT AM ANT B3 STRQ AM IF IN AM MIX OUT Rch A IFT B FM B FM B FM...

Page 20: ...71 Q1206 1208 SOLENOID SOLENOID DRIVE DECK2 B5 B6 1M 13 Q1203 1220 MOTOR DRIVE MOTOR M B5 B6 16 Vcc 1 GND DECK1 S972 HALF Z971 S974 R REC INH S975 F REC INH S971 MODE DECK2 Q1153 Q1154 29 8 AGC OFF B6 Z1101 S952 HALF S951 MODE Q1120 1121 Q1118 1119 VREF VREF VREF Q1171 B3 A BU2090AF E2 IC1105 SYSTEM CONTROL DECK2 0N2180RLC1 IC971 TP11 TP12 TP5 BA7755A IC1102 R P SELECT TP3 TP4 M51167AFP TB IC1101 ...

Page 21: ... 1 A B C 15 V CC 9 VREF 14 16 GND 1 2 ENB 13 8 ANF 12 1 SPE IN 94 SPE CONT A 93 92 SPE CONT B SPE CONT C PMOUT 7 AOUT M62457FPE1 IC602 SPE ANALYZER AMP BU2090AF E2 IC604 LED DRIVE 3 CLK B10 4 7 9 15 DPL SSS S ST D EQ C FCS2 C FCS1 V SURR1 VMR1 3D V S S POS1 S WOOF D622 623 625 632 637 16 V DD VREF 1 GND 33 SER1 DATA 2 32 SER2 X1 X801 33 8MHz 1 2 X0 X 4 13 14 25 26 39 51 70 91 100 GNDAL R GNDAC GND...

Page 22: ...D602 606 615 620 16 V CC VREF 1 GND KEY SWITCH 4 8 KEY1 5 VR601 VOLUME PLUSE ENCODE 9 10 JOG1B JOG1A VR602 JOG PLUSE ENCODER 12 13 JOG2B JOG2A 15 LED CTL B10 LED7 5V Q608 POWER SUPPLY XC IN XC OUT 36 37 X601 32 7kHz X 1 X1 X0 2 4 13 14 25 26 39 51 70 91 100 GNDAL R GNDAC GNDASL R GNDR GND GNDX B7 VDAR VDASC VDASR VDDR VDD VDN VDL R 9 21 30 38 54 62 86 95 96 64 65 ELR0 1 66 67 EBC0 1 68 DIN 69 DOUT...

Page 23: ...I1 16 ERR2 ERR2 17 DOK2 DOK2 20 DRST2 RST2 12 DCS2 DCS2 13 DCK2 DCK2 14 DDO2 DDO2 15 DDI2 DDI2 24 V SS 59 AV SS MUT F MUT F 26 MUT F MUT SB 29 MUT SB MUT SB 32 EXP21 33 34 35 AST ACK ADA AST ACK ADA 44 SW1 45 SW2 46 SW3 47 SENSE SENSE 56 53 SBMIX CNTA1 58 VREF R ch R ch 55 RL1 SPCONT XIN XO 22 23 X401 8MHz ATT Q803 ATT ATT Q804 BUFFER AMP B5 B M5218AFPE3 IC302 BUFFER AMP B5 B M5228FPE1 IC301 BTL D...

Page 24: ...01 B2 D602 B3 OVER LOAD DET Q501 502 9 B9 13 14 D202 SURROUND SPEAKERS 8 Ω RLY504 N RLY505 HIGH MID LOW SPEAKERS 6 Ω D503 Q505 506 MOTOR DRIVE M FAN MOTOR Q351 354 B4 POWER CONT SWITCHING Q373 375 D371 373 B3 5 DC DET PCONT P CNT B2 B8 Q503 AC IN Q504 SPCONT PHONE RLY503 POWER CONTROL CIRCUIT POWER CONTROL PROTECTION CIRCUIT SIGNAL LEVEL DET RELAY DRIVE SWITCHING REMOTE MUTING POWER ON OFF BIAS 24...

Page 25: ...TK470 050 IC503 REGULATOR D454 SUB B B3 B6 B5 B8 SW5V B7 ACIN B3 STB LED7 5V D203 D453 B1 D601 AC IN S501 VOLT ADJ F2 REGULATOR SWITCH ING REGULATOR REGULATOR SWITCH ING REGULATOR RELAY DRIVE REGULATOR Q592 POWER SUPPLY CONT POWER SUPPLY Q594 SYNC DET Notes 1 CD SIGNAL LINE FM SIGNAL LINE FM OSC SIGNAL LINE AM SIGNAL LINE AM OSC SIGNAL LINE TAPE PLAYBACK SIGNAL LINE TAPE RECORDING SIGNAL LINE SUB ...

Page 26: ... Deck 1 open S701 Reset switch S951 Deck 1 mode detect switch S952 Deck 1 tape detect switch S953 Deck 1 CrO2 detect switch S971 Deck 2 mode detect switch S972 Deck 2 tape detect switch S973 Deck 2 CrO2 detect switch S974 Deck 2 record detect switch S975 Deck 2 record detect switch SW1 Tray position switch SW2 Tray position switch SW3 Tray open switch SW4 CD offset detect switch SW5 Spindle bottom...

Page 27: ...0 C734 10V220 M M702 M M701 1 3 5 7 9 8 6 4 2 10 11 12 13 14 15 16 CN701 Q701 2SA1037AKSTX 15 21 20 19 18 17 16 24 23 22 28 27 26 25 14 13 12 11 10 9 8 7 6 5 4 3 2 1 AN8839NSBE1 SP MOTOR TRV MOTOR VCC IN1 NC IN4 VREF IN3 RSTIN NC PVCC2 NC NC PVCC1 PC2 NC IN2 RST GND GUARD GND GND PGND2 D4 D4 D3 D3 PGND1 D2 D2 D1 D1 NC F F T T LPD VREF NA NB GND LD GND LD PDE PDF VCC NC Q701 IC701 IC703 GND GUARD I...

Page 28: ...6 1000P C725 1000P C730 0 1 C754 470P C745 1000P C732 6 3V220 C727 50V1 C728 50V1 C731 6 3V220 C723 10V220 S701 X701 16 9344 MHz SPEED MLD M DATA MCLK P GND 7 5V TX D GND LD SW 3 3V REST SW RST STAT SUBQ SQCK RESY SSEL BYTCK DEMPH IN DVSS1 DVDD1 VDD AVSS2 AVDD2 OUT CLDCK FCLK IPFLAG FLAG CLVS CRC TEST AVDD1 AVSS1 RSEL PSEL MSEL BCLK LRCK SRDATA TX MCLK MDATA MLD SENSE FLOCK TLOCK BLKCK SQCK SUBQ D...

Page 29: ... 0 047 C1175 35V220 R1188 1K R1189 4 7K Q1171 2SD1302STA SWITCHING REC ON R1177 5 6K D1175 MA111TX C1182 50V4 7 Q1174 2SC2412KT96R BIAS OSC CONT CrO2 R1181 3 3K R1180 2 7K R1179 2 7K C1181 0 01 C1180 0 01 C1177 1000P C1179 0 01 C1178 1000P R1178 1 2 Q1175 1176 2SC2002KTA BIAS OSC Q1175 Q1176 TP5 TP4 TP2 TP1 R1184 100K C1102 1000P R1104 15K C1194 1000P R1195 100K C1103 680P C1104 0 022 R1101 330K R...

Page 30: ... 10K R1121 33K C1143 50V4 7 C1127 0 01 R1117 270K R1115 390K C1131 820P C1129 820P R1123 10K R1125 1K C1146 16V10 C1135 1000P C1139 50V2 2 R1105 270 C1105 1200P C1108 16V33 C1109 16V100 C1111 820P C1113 6 3V220 R1107 33 C1115 0 033 R1141 6 8K R1109 4 3K R1111 2 2K C1147 1500P C1123 1800P C1119 50V4 7 C1121 50V1 C1125 0 047 C1136 1000P C1134 50V4 7 C1133 50V4 7 R1133 3 3K C1142 0 022 R1134 470K C11...

Page 31: ...151 Q1152 A G R1213 1 5K R1220 4 7K R1145 10K C1145 16V10 A B C D R1161 4 7K R1196 47K R1197 47K R1162 4 7K Q1115 Q1116 C1186 10V47 R1186 1K Q1115 1116 2SD2114K1V MUTING C1151 16V10 R1151 1M R1155 220 C1153 1000P Q1153 R1156 220 C1154 1000P R1152 1M C1152 16V10 R1154 1 2K R1153 1 2K C1166 16V10 C1165 16V10 C1162 16V100 R1158 220 A B C D Q1118 1119 2SC2412KT96R INTERFACE D1173 MA111TX R1139 10K C11...

Page 32: ...ECK2 DECK1 TPS VREF SER4 SER1 SW5V To FL CIRCUIT H601 on SCHEMATIC DIAGRAM 9 F 1 2 M MOTOR Q1203 2SD965RTA MOTOR DRIVE R1206 220 10K 10K R1236 4 7K R1235 4 7K R1216 2 2K C1188 100P C1187 100P R1215 2 2K Q1208 DTC114TKA146 SOLENOID DRIVE D1202 MA111TX R1226 1K R1227 1K D1201 MA111TX R1225 2 7 R1221 2 7 Q1209 DTC114TKA146 SOLENOID DRIVE Q1206 2SB621RTA SOLENOID DRIVE Q1207 2SB621RTA SOLENOID DRIVE W...

Page 33: ...6 DECK1 OPEN S655 TAPE EDIT S653 REC STOP S652 REV MODE S651 DECK2 OPEN S640 S641 S642 S643 S644 S645 LOW S646 MID S647 HIGH S648 TRICONT S649 SET D622 623 630 632 LNJ301MPUJAD R637 22K R636 1 5K IC603 BU2090AF E2 LED DRIVE IC604 BU2090AF E2 LED DRIVE D620 LNJ801TPSJAD TIMER H603A R959 330 R957 270 R956 270 R955 270 R954 270 R953A 270 R952A 270 D625 629 631 SLR325DCT31 D637 SLR325MCT31W S609 CLOCK...

Page 34: ...34 SA AK78 ...

Page 35: ...S133TA R690 470K R691 4 7K Q610 2SA933SSTA POWER SUPPLY Q609 KRC102MTA POWER SUPPLY CONT CN601 FL1 FL2 SYNC D GND ECO SYS5 8V SW5V SER1 SER4 VREF TPS DECK1 DECK2 VREF SW5V VP SPEANA RESET DACK PCONT MRST MRQ MSI MSO MCK MCS CS PLL CE SER4 DDATA PLL DT SD DO ST LED6 8V D GND SENS H P SW H P GND H P Rch IN H P Lch IN DC DET To MAIN CIRCUIT CN603A on SCHEMATIC DIAGRAM 13 K To AC TRANS CIRCUIT CN501 o...

Page 36: ...1 RVTDTC143EST MOTOR DRIVE CN1 PLUNGER S2 TRAY POSITION 2 DET S1 TRAY POSITION 1 DET S3 OPEN DET A B C D D A B C D2 MTZJ4R7BTA C2 0 01 RM1 LOADING MOTOR R1 1K C1 16V100 W1 1 3 2 1 4 3 2 10 9 8 7 6 5 4 3 2 1 4 7K 4 7K I H J BOTTOM SW CIRCUIT CLAMP SW CIRCUIT LOADING MOTOR CIRCUIT SCHEMATIC DIAGRAM 10 POSITIVE VOLTAGE LINE 36 SA AK78 ...

Page 37: ...6 7 8 9 10 11 12 13 14 15 NC NC VEE VDD 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 G E H IC202 M5218AFPE3 BUFFER AMP I J A B C D E F D A B H I 1 2 3 4 5 6 7 8 MAIN CIRCUIT K SCHEMATIC DIAGRAM 11 C229 0 1 C230 0 1 B 47K 10K C235 47P R233 4 7K C234 47P C233 47P R232 4 7K R231 4 7K R290 22K R255 150K C214 50V4 7 R238 100K R254 270K C213 50V4 7 R237 100K R253 270K R235 220 R236 220 C218 33P R246 10K C216 680P R2...

Page 38: ...ATIC DIAGRAM 2 A J K E B Lch IN Rch IN A GND Lch OUT Rch OUT B 3 D GND MO B MO GND M GND To MECHANISM CIRCUIT H1100 on SCHEMATIC DIAGRAM 6 B R239 2 2K R240 2 2K R257 1K R258 1K R465 1 5K R464 1 5K R466 1 5K R458 2 7K R459 2 7K R460 2 7K R455 10K C452 0 01 R499 220 R474 1K R473 1K R471 1K R470 1 5K R437 2 7K R467 1K R489 22K C453 0 022 R468 100K R475 220 R487 10K L452 10 H R472 10K R476 220 R477 22...

Page 39: ...ER SENSE DACK DSP1 DSP2 INITITAL ROMKORE ONKETU MJU OD R430 100K C402 0 01 C403 0 022 C404 6 3V47 R424 10K R422 1K R421 10K R426 1K R431 1K R427 1K R425 1K C401 0 022 R402 4 7K R401 100K R439 100K R416 1K R417 1K R418 1K C459 0 1 C405 0 1 CN603A SW5V VP DCDET SPEANA RESET DACK PCONT M RST M RQ M SI M SO M CK M CS CS PLLCE SER4 DDATA PLLDT SD DO ST LED6 8V D GND SENS HP SW HP Lch HP GND HP Rch To F...

Page 40: ...76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 XI XO VDX GND AL AOL AOL T VRL R AILT VDALR AIRT AORT AOR GND AR GND AC AOC AOCT VRCS AICT VRO VRI VDACS AISLT AOSLT AOSL GND ASL GND ASR AOSR AOSRT AISRT VDASR NC TP0 TP1 TP2 TP3 TP4 VDD VDDR GND R TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 FS CKO0 CKO1 GND TP13 MCK V DD TP14 TST15 EM0 EM1 STEP1 STEP0 RESET V DD SYNC ELRO ELRI EB...

Page 41: ... AOSR AOSRT AISRT VDASR NC TP0 TP1 TP2 TP3 TP4 VDD VDDR GND R TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 FS CKO0 CKO1 GND TP13 MCK V DD TP14 TST15 EM0 EM1 STEP1 STEP0 RESET V DD SYNC ELRO ELRI EBCO EBCI D IN D OUT GND CS IFCK IFDI IFDO IFOK ERR I2CS BA1 BA0 BOOT NC TST0 TST1 TST2 TST3 VDM VRM1 M IN M OUT VRM2 GNDM VSAL L IN AVRL VDL VDR AVRR R IN VSAR GNDX N R828 4 7K R890 10K R889 330 R888 330 R885 330 R...

Page 42: ... 1K C306 16V10 R306 56K C308 16V10 Q301 IMX9T110 MUTING C307 16V10 R305 56K C305 16V10 R303 1K Q302 IMX9T110 MUTING C318 16V10 R315 56K R316 56K C316 16V10 R314 1K C312 47P R312 33K C310 100P C313 0 01 R310 1 8K R281 10K Q203 2SA1037AKSTX MUTING CONT R313 1K C315 16V10 R444 1K R269 68K R273 39 R271 39 C267 1000P R270 68K R274 39 R272 39 C268 1000P R268 3 3K C262 50V4 7 R264 22K R263 22K Q201 IMX9T...

Page 43: ...4 820K C352 0 1 Q352 2SC2412KT96R FAN MOTOR DRIVE FAN MOTOR R374 3 3K Q373 2SC2412KT96R POWER CONT Q375 Q375 2SA1037AKSTX SWITCHING R378 1K R377 10K R376 4 7K Q385 DTA114EKA146 STABILIZER R384 1 R387 1 D456 RL1N4003N02 D385 RL1N4003N02 C382 0 01 R382 1 2K C384 16V10 R388 82K R383 4 7K D386 UDZSTE175R1B Q384 2SC2412KT96R REGULATOR D383 DA204KT146 C386 0 01 R385 4 7K R366 220K C383 16V10 R381 1 2K D...

Page 44: ...S133TA R512 10K R574 100K C527 6 3V470 R575 56K Q506 KRA102MTA POWER SUPPLY Q505 KTC3199GRTA POWER SUPPLY CONT R576 2 2K C523 0 047 R539 10 C524 0 047 R540 10 R518 56K C502 470P C501 470P C504 470P C503 470P R517 56K C511 22P R527 120K R537 10 C513 0 047 R519 470K C525 0 047 R541 10 C526 0 047 R542 10 R514 56K C506 470P C505 470P R501 3 9K R505 15K R506 15K R502 3 9K C508 18P R524 120K R523 120K C...

Page 45: ... F C D C540 50V4 7 R561 22K R521 18K R522 47K Q504 KTC3199GRTA RELAY DRIVE R566 39 R565 39 D507 RVD1SS133TA R564 180 R563 180 D506 RVD1SS133TA RLY504 RLY505 C539 50V4 7 R548 56K C532 15P R558 120K R557 100K R549 56K C533 15P R550 56K C529 1000P C530 1000P R547 5 6K R545 5 6K R546 56K C531 100V10 C537 0 047 R560 10 R559 10 C538 0 047 JK501 R586 1 5K 6 4 3 1 2 5 STB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...

Page 46: ...33TA R592 18 R599 18 D594 1D3E Q594 KRC102MTA SWITCHING R594 10K R593 10K C595 35V4 7 D591 1D3E D592 1D3E C594 1000 C592 0 01 2 1 3 4 5 6 SYNC FL2 FL1 GND ECO CN501 SYS5 8V To FL CIRCUIT H602 on SCHEMATIC DIAGRAM 9 K R597 1 8K D595 MTZJ7R5ATA C596 0 01 D599 1SS291TA D598 1D3E D597 RVD1SS133TA R596 820K C593 16V1000 C598 1000P C597 10V22 Q592 2SC3940AQSTA REGULATOR Q593 KTC3199GRTA REGULATOR 6 2 1 ...

Page 47: ...29 C742 C743 TJ701 C702 IC702 J707 J708 C745 R744 TP26 TP24 Q701 C736 C738 R741 C722 C721 R711 C724 C718 R709 R712 R742 J721 C723 X701 C728 IC701 J722 J709 J728 J710 J701 R749 C751 C750 J712 C753 R750 J702 J727 J704 C754 IC703 R725 C715 R729 C739 C747 C710 R702 R708 C733 TP33 TP42 C701 S701 TP2 TP12 J750 J732 TP8 C752 J734 TP22 R753 C744 TP6 M702 1 28 14 15 M701 TRV MOTOR 1 21 41 60 80 15 14 28 SP...

Page 48: ...Q1174 R1176 Q1173 R1213 Q1108 R1122 R1124 Q1107 R1123 R1121 R1146 Q1179 R1170 R1233 R1186 R1162 R1161 R1230 R1190 R1191 R1192 R1102 R1166 Q1118 Q1119 R1165 R1167 R1220 R128 R1126 C1132 C1130 C1124 C1128 R1118 R1116 C1136 R1184 R1104 C1102 R1125 C1131 R1115 R1117 C1127 C1129 R1112 R1142 R1110 R1108 R1111 R1109 R1141 R1107 R1153 R1154 R1151 C1153 R1155 Q1153 R1143 C1123 R1152 C1154 R1156 Q1154 R1144...

Page 49: ...6 5 4 3 2 1 SOLENOID S975 CS971 J2 R972 S971 S972 D971 R973 J3 IC971 Z971 J1 S973 S974 PL PL 1 2 3 4 1 2 3 4 5 6 7 8 9 7 6 5 4 3 2 1 SOLENOID S621 S622 S623 S624 S625 S626 S627 S628 S629 S630 S631 D619 D618 D617 D616 D615 R933 R932 R921 R922 R923 R924 R925 R926 R927 R928 R929 R930 R934 R935 R936 CD M DISC1 OPEN1 DISC2 OPEN2 DISC3 OPEN3 DISC4 OPEN4 DISC5 OPEN5 H603B 8 7 6 5 4 3 2 1 49 SA AK78 ...

Page 50: ...C611 R902 R901 R649 R910 Q609 R691 Q610 R652 D658 L602 D654 R993 C671 C635 RANDOM DISPLAY S WOOF 3DAI KARA_EFFECT KARA UP DOWN C636 R690 R687 C632 R686 R699 IC602 C634 C674 C631 C630 C633 J800 J801 J802 J850 J851 J853 J855 J856 J857 J858 J859 J860 J861 J862 J863 J864 J902 J903 J904 J804 CN601 R685 J615 J616 J617 J618 J619 J620 J621 J623 J624 J625 J635 J639 J640 J641 J642 J644 J645 J646 J647 J648 J...

Page 51: ...0 R636 R637 Q608 R694 R698 R695 R904 C641 C640 R911 L606 L604 L605 L607 H602 W602 R903 R689 R688 649 R696 TIMEP R CLOCK TIMER 6CH AUX1 2 TAPE TUNER CD POWER ECO J802 J803 J850 J851 J854 J900 J901 CN601 H603A W603 J612 J621 J622 J624 J626 J905 J906 J629 J632 J633 J634 J635 J636 J637 L610 J641 J642 J767 J648 J651 J657 J703 J713 J950 J805 J758 J759 J643 J715 J716 J763 J764 J766 J806 J768 J773 J717 J7...

Page 52: ...63 S644 R964 R965 R966 R967 R968 S645 S646 S647 S648 S649 R951 D622 R948 D623 R949 D632 D630 R950 DECK2OPEN FF SKIP PLAY PAUSE REVMODE REC STOP STOP TRICONT SET HICH REV MIDCH TAPEEDIT REW SKIP DECK1OPEN LOWCH J660 J661 1 VR602 1 2 3 4 5 6 7 8 910 2 3 JOG PULSE ENCODER SW4 W2 1 2 3 1 IC1 J3 J1 SW3 R1 D2 Q1 SW1 SW2 W2 W1 CN1 C2 J4 C1 J2 C E B 1 2 3 4 5 6 7 8 9 10 1 2 3 2 3 4 5 6 7 8 9 10 11 12 13 1...

Page 53: ...383 D386 R382 Q384 D383 C382 C386 C351 Q353 R363 R361 R362 R354 C352 R351 R353 R355 R357 R352 Q352 R358 R356 Q354 R259 R260 R247 R248 R811 R419 R428 R430 C402 R439 R410 R407 C401 R420 R418 R417 R416 R401 L401 C404 R402 R406 R440 C403 R421 R403 R424 R425 R426 R422 R427 R431 R441 R442 R443 R444 D453 R475 R277 R278 C405 R310 C331 R378 D202 R283 J8 L451 R460 D454 D456 D373 R388 R366 C826 C825 C870 C33...

Page 54: ...C527 R561 J501 J530 J503 J504 J506 J507 J508 J509 J510 J511 J512 J513 J514 J515 J517 J518 J519 J520 J521 J522 J523 J524 J525 J526 J531 J532 J534 J535 J536 J537 J538 J539 J540 J541 J542 J543 J544 J545 J546 J547 J548 J549 J527 J551 J552 J553 J554 J555 J556 J557 J559 J560 J561 J562 J563 J564 J565 J566 J567 J568 J569 J570 J571 J572 J575 J576 J577 J500 J529 R562 J502 R590 C E B C E B C E B C E B C E B ...

Page 55: ...R582 R583 D571 RLY501 IC503 W502 H502 J541 J542 J543 J544 J545 J546 J547 J548 J549 J550 J551 J552 J553 J554 J555 J556 J557 J558 J559 J560 J561 J562 J563 J564 J566 J565 J567 J568 J569 J570 J571 J572 D561 C573 J540 C577 C570 R581 J573 C E B C E B 1 2 3 4 5 6 7 8 9 10 11 12 10 9 8 7 6 5 4 3 2 1 12 11 10 9 8 7 6 5 4 3 2 1 6 5 1 2 3 4 1 2 3 4 5 6 7 8 91011 121314 C E B C E B C582 A B C D E F G 1 2 3 4 ...

Page 56: ...RIC SHOCK AC VOLTAGE LINE PLEASE DO NOT TOUCH THIS P C B 1 2 3 4 5 6 7 8 9 14 11 15 13 12 16 10 PRIMARY SECONDARY C E B C E B JK500 FC501 FC502 J501 J502 J503 J504 W1 YEL ORG VIO GRY RED BRN J511 J512 J515 S501 W10 W9 W8 W7 P1 P2 P3 P4 P6 P5 W6 1 2 3 4 5 6 7 8 W5 J513 J514 J521 CN500 PL1 BLK OR T502 SUB TRANSFORMER Z501 FC503 FC504 F1 250V T4 0A F2 250V T 125A VOLTAGE SELECTOR AC IN 1 110V 2 127V ...

Page 57: ...16 Wiring Connection Diagram 57 SA AK78 ...

Page 58: ...58 SA AK78 ...

Page 59: ...17 Troubleshooting Guide 59 SA AK78 ...

Page 60: ...n Capacitor values are in microfarads µF unless specified otherwise P Pico farads pF F Farads Resistance values are in ohms unless specified otherwise 1K 1 000 OHM The marking RTL indicates that the Retention Time is limited for this items After the discontinuation of this assembly in production the item will continue to be available for a specific period of time The retention period of a availabi...

Page 61: ...18 1 1 Deck Mechanism Parts Location 18 1 Mecanismo do Deck Montado RD JMD034 Z 61 SA AK78 ...

Page 62: ...62 SA AK78 ...

Page 63: ...VER M 118 RML0372 WINDING LEVER M 119 RML0374 EJECT LEVER M Ref No Part No Part Name Description Remarks 120 RMM0131 BRAKE ROD M 121 RMM0133 1 EJECT ROD M 122 RMQ0519 REEL HUB M 123 RMS0398 1 MOVING CORE M 124 RSJ0003 PLUNGER M 125 RMC0061 PACK SPRING M 126 RXF0061 FLYWHEEL F ASS Y M 127 RXF0062 FLYWHEEL R ASS Y M 128 RXG0040 FF RELAY GEAR ASS Y M 129 RMK0283A J SUB CHASSIS M 130 RXL0124 PINCH ROL...

Page 64: ...18 2 CD Loading Mechanism RD DAC024 Z 18 2 1 CD Loading Mechanism Parts Location 64 SA AK78 ...

Page 65: ......

Page 66: ...DRIVE RACK M 334 RDG0432 SPEED UP GEAR M 335 RML0524 SLIDE LOCK M 336 RML0523 CARRIER LOCK M 337 RME0260 1 SLIDE LOCK SPRING M 338 RMR1123 H TRAY M 339 RXQ0595 MOTOR SUB ASS Y M 341 RSJ0003 SOLENOLD ASS Y M 343 RMA1106 UPPER PLATE M 344 RML0519 8CD LEVER M 345 RFKNAAK27GCS MECHA BASE ASS Y M 346 RML0522 TURNING STOPPER M 347 RMQ0745 LOWER SPINDLE M 348 RMQ0746 UP DOWN BASE M 349 RMB0550 LOWER SPIN...

Page 67: ...18 3 1 Cabinet Parts Location 18 3 Cabinet 67 SA AK78 ...

Page 68: ...68 SA AK78 ...

Page 69: ......

Page 70: ...IODES D1 GP1S94 DIODE M D2 MTZJ4R7BTA DIODE M D201 UDZSTE175R1B DIODE M D202 1SS355TE17 DIODE M D203 RL1N4003N02 DIODE M D351 DAP202KT146 DIODE M D371 DAP202KT146 DIODE M D373 1SS355TE17 DIODE M D381 DA204KT146 DIODE M D383 DA204KT146 DIODE M D385 RL1N4003N02 DIODE M Ref No Part No Part Name Description Remarks D386 UDZSTE175R1B DIODE M D451 RL1N4003N02 DIODE M D453 RL1N4003N02 DIODE M D454 RL1N40...

Page 71: ... RSH1A019 2U SW LEAF M S971 RSH1A018 3U LEAF SWITCH M S972 RSH1A019 2U SW LEAF M S973 RSH1A019 2U SW LEAF M S974 RSH1A019 2U SW LEAF M S975 RSH1A019 2U SW LEAF M SW1 RSH1A032 U SW PUSH M SW2 RSH1A032 U SW PUSH M SW3 RSH1A005 1U SW M SW4 RSH1A91ZA A SW CD M SW5 RSP1A017 A SW LOCK M CONNECTORS CN1 RJS1A9414 FF CONNECTOR M CN1 RJS1A9414 1 14P CONNECTOR M CN100 RJS1A5210 10P WIRE HOLDER M CN351 RJP2G4...

Page 72: ...TO DECK M W602 REX0955 6P WIRE M W603 RWJ1108100XX WIRE M W1100 RWJ8010160RX 10P WIRE M W1200 RWJ0102065CK WIRE M EARTH TERMINAL E500 SNE1004 2 EARTH TERMINAL M JUMPER PLATE PL1 RJR0199 JUMPER PLATE M RESISTORS R1 ERDS2TJ102T 1K 1 4W M R201 ERJ6GEYJ123V 12K 1 10W M R202 ERJ6GEYJ123V 12K 1 10W M R203 ERJ6GEYJ332V 3 3K 1 10W M R204 ERJ6GEYJ332V 3 3K 1 10W M R205 ERJ6GEYJ123V 12K 1 10W M R206 ERJ6GEY...

Page 73: ...R355 ERJ6GEYJ562V 5 6K 1 10W M R356 ERJ6GEYJ101V 100 1 10W M R357 ERJ6GEYJ103V 10K 1 10W M Ref No Part No Part Name Description Remarks R358 ERJ6GEYJ563V 56K 1 10W M R359 ERDS1FVJ180T 18 1 2W M R360 ERJ6GEYJ472V 4 7K 1 10W M R361 ERJ6GEYJ563V 56K 1 10W M R362 ERJ6GEYJ103V 10K 1 10W M R363 ERJ6GEYJ824V 820K 1 10W M R364 ERJ6GEYJ223V 22K 1 10W M R365 ERJ6GEYJ222V 2 2K 1 10W M R366 ERJ6GEYJ224V 220K ...

Page 74: ... 5 6K 1 4W M R546 ERDS2TJ563T 56K 1 4W M R547 ERDS2TJ562T 5 6K 1 4W M R548 ERDS2TJ563T 56K 1 4W M R549 ERDS2TJ563T 56K 1 4W M Ref No Part No Part Name Description Remarks R550 ERDS2TJ563T 56K 1 4W M R551 ERDS2TJ334T 330K 1 4W M R552 ERDS2TJ223T 22K 1 4W M R553 ERDS2TJ103T 10K 1 4W M R554 ERDS1FVJ272T 2 7K 1 2W M R555 ERDS1FVJ272T 2 7K 1 2W M R556 ERDS1FVJ272T 2 7K 1 2W M R557 ERDS2TJ104T 100K 1 4W...

Page 75: ... 18K 1 10W M R725 ERJ6GEYJ391A 390 1 10W M Ref No Part No Part Name Description Remarks R727 ERJ6GEYJ392A 3 9K 1 10W M R728 ERJ6GEYJ392A 3 9K 1 10W M R729 ERJ6GEYJ392A 3 9K 1 10W M R731 ERJ6GEYJ682A 6 8K 1 10W M R735 ERJ6GEYJ101A 100 1 10W M R736 ERJ6GEYJ101A 100 1 10W M R741 ERJ6GEYJ473A 47K 1 10W M R742 ERJ6GEYJ224A 220K 1 10W M R744 ERJ6GEYJ124A 120K 1 10W M R749 ERJ6GEYJ472A 4 7K 1 10W M R753 ...

Page 76: ...1T 330 1 4W M R960 ERDS2TJ102T 1K 1 4W M Ref No Part No Part Name Description Remarks R961 ERDS2TJ102T 1K 1 4W M R962 ERDS2TJ122T 1 2K 1 4W M R963 ERDS2TJ182T 1 8K 1 4W M R964 ERDS2TJ222T 2 2K 1 4W M R965 ERDS2TJ272T 2 7K 1 4W M R966 ERDS2TJ472T 4 7K 1 4W M R967 ERDS2TJ682T 6 8K 1 4W M R968 ERDS2TJ103T 10K 1 4W M R971 ERDS2TJ102T 1K 1 4W M R972 ERDS2TJ102T 1K 1 4W M R972 ERDS2TJ821T 820 1 4W M R97...

Page 77: ...ECUV1H101KBN 100P 50V M C264 ECUV1H101KBN 100P 50V M C265 ECUV1H470JCN 47P 50V M C266 ECUV1H470JCN 47P 50V M Ref No Part No Part Name Description Remarks C267 ECUV1H102KBN 1000P 50V M C268 ECUV1H102KBN 1000P 50V M C269 ECEA1CKA100B 10 16V M C270 ECEA1CKA100B 10 16V M C271 ECUV1H103KBN 0 01 50V M C272 ECUV1H103KBN 0 01 50V M C273 ECEA1HKA3R3B 3 3 50V M C275 ECEA1CKA220B 22 16V M C280 RCA1AM102BT 10...

Page 78: ...H561KB5 560P 50V M C611 ECEA1CKA100B 10 16V M C612 ECBT1C103MS5 0 01 16V M C613 ECBT1C103MS5 0 01 16V M Ref No Part No Part Name Description Remarks C614 ECEA1HKA2R2B 2 2 50V M C615 ECBT1H150JC5 15P 50V M C616 ECBT1H180JC5 18P 50V M C617 ECBT1H680JC5 68P 50V M C618 ECBT1H560J5 56P 50V M C619 ECBT1H680JC5 68P 50V M C620 ECBT1H560J5 56P 50V M C621 ECBT1H102KB5 1000P 50V M C622 ECBT1H331KB5 330P 50V ...

Page 79: ...C853 ECEA1HKA4R7B 4 7 50V M C854 ECEA1HKA4R7B 4 7 50V M C855 ECEA1HKAR47B 0 47 50V M Ref No Part No Part Name Description Remarks C856 ECEA1HKAR47B 0 47 50V M C857 ECUVNE104KBN 0 1 25V M C858 ECUVNE104KBN 0 1 25V M C859 ECEA1HKA4R7B 4 7 50V M C860 ECUV1H222KBN 2200P 50V M C861 ECUV1H561KBN 560P 50V M C862 ECUV1H471KBN 470P 50V M C863 ECEA0JKA470B 47 6 3V M C864 ECEA0JKA470B 47 6 3V M C865 ECEA1HKA...

Page 80: ... C1187 ECUZ1H101KBN 100P 50V M C1188 ECUZ1H101KBN 100P 50V M C1193 ECUZ1H102KBN 1000P 50V M C1194 ECUZ1H102KBN 1000P 50V M C1201 ECEA1CKA101B 100 16V M C1202 ECUZ1E104ZFN 0 1 25V M 0 CHIP JUMPER RJ701 ERJ6GEY0R00A 0 1 10W M RJ702 ERJ8GEY0R00A 0 1 8W M RJ703 ERJ8GEY0R00A 0 1 8W M Ref No Part No Part Name Description Remarks RJ704 ERJ8GEY0R00A 0 1 8W M RJ707 ERJ8GEY0R00A 0 1 8W M RJ708 ERJ8GEY0R00A ...

Page 81: ...ation of law SB AK78 Colour S Silver Type Area GC Asia Latin America Africa and Middle Near East Output sound pressure level 87 dB W 1 0m Cross over frequency 150 Hz 3 5 kHz Frequency range 40 Hz 50 kHz 16 dB 50 Hz 36 kHz 10 dB Dimensions W x H x D 250 x 348 x 292 mm Weight 5 6 kg Notes Specifications are subject to change without notice Weight and dimensions are approximate System SC AK78 GC Musi...

Page 82: ...eaker to the left terminal 1 Strip off the outer covering and twist the center conductor Make sure the bare ends of the wires are not unravelled If they are twist them toght again 2 Insert the wire to the rear panel of the unit and close the lever Notes To prevent damage to circuitry never short circuit positive and negative speaker wires Be sure to connect only positive red wires to positive term...

Page 83: ...SP CABINET ASS Y L M 1 BKM0149 SP CABINET ASS Y R M Ref No Part No Part Name Description Remarks 1 1 RGQ0230 K CORD CLIPPER M 1 2 RMQ0941 BUSH TERMINAL M 1 3 RKA0072 KJ LEG M 1 4 RMQ0938 PORT PACKING M 2 RYQ0296 S FRONT PANEL L M 2 RYQ0296A S FRONT PANEL R M 3 RMR1278 W WOOFER RING M 4 RMR1277 K BACK CAVITY M 5 RMQ0936S EVA PACKING B C M 6 REE0960 CORD ASS Y M 7 RMR1281A H EXTEND PORT R M 7 RMR128...

Page 84: ...ASS Y R M 24 RGK0500 K DUST CAP M 25 RMR1208 K TWEETER SPACER M 26 REE0981 WIRE M 27 RMQ0931C CAB PACKING M 28 RMQ0931LK CABINET PACKING M CAPACITORS C1 ECEA1HAY4R7S 4 7uF 50V M PACKING MATERIALS P1 RPH0187 MIRAMAT M P2 RPN1250 POLYFOAM M SPEAKER SP1 EAST17PL11A6 SUPER WOOFER M SP2 EAST12P25B6 WOOFER M SP3 EAST6PH06B6 TWEETER M SP4 EFBS55C41A6 SUPER TWEETER M 4 SB AK78 Printed by Widebooks SP BR 1...

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