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SA-AK250GCP - Tecnicosaurios

1. HEATSINK IC5101 8 1 fime E eMe ES n 4 05101 8 55321 s 4 amp altele 2 05156 Sp ss cent D5154 L Pr 5320 W718 15102 al gt lt gt wes D5130 JK5103 RIGHT SPEAKER 8 15601 LEFT SPEAKER o 7 W757 XU gt 8 BE BE 5 951038 5105 702 8 85413 25412 65316 CN5103 SESBEBBRERBET CN5102 SA AK250GCP POWER 1 2 3 4 5 6 7 8 9 10 11 12 13 82 SA AK250GCP 20 6 H Transformer P C B H TRANSFORMER P C B 0132 T5951 ENG 5AL SUB TRANSFORMER Fg 2 250V T1 6AL JK5950 E CN5951 REST R5951 R5960 110V 127V 220V 240V Q5951 R5961 50 60HZ 5958 65957 8 T5950 Hh ee HB Ar 8 POWER TRANSFORMER lt gt ARE SECONDARY PRIMARY CAUTION RISK OF ELECTRIC SHOCK CN5950 soos VOLTAGE LINE a VOLTREEISELECTOR PLEASE DO NO
2. 68 14 SCHEMATIC DIAGRAM 5 MAIN CIRCUIT B SIGNAL LINE Z2 MAIN SIGNAL LINE DX MIC SIGNAL LINE AUX SIGNAL LINE USB SIGNAL LINE TO MAIN SECTION 2 4 IDCDET 02840 a R2940 ZAN B1ACKD000006 Lwy FAN MOTOR ON OFF SWITCH MOT_12V 02942 4 TO MAIN SECTION 3 4 22 ES R2942 FNS CN2810 R2943 S 5 6K ze Ale oH E Q2943 8 02943 R2930 B1ABCF000176 28 W Bso FAN SUPPLY 38 47K Q2949 E CONTROL SWITCH ao N 5 5 Q2948 Q2949 B1ABCF000176 DC DETECT SWITCH U_GND W623 W618 3 3V 0
3. Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks C2343 ECJ1VB1A474K 0 47 10V M C3706 F1H1H470A230 47 50V M C2344 ECJ1VB1A474K 0 47 10V M C3707 F1H1H470A230 47 50V M C2401 F1H1A224A007 0 22 10V M C3708 F1H1H100A230 10 50v M C2402 F1H1A224A007 0 22 10V M C3709 F1H1H100A230 10 50v M C2411 F1H1A105A025 1 10V M C3710 F1H1H104A783 0 1 50V M C2412 F1H1A105A025 1 10V M C3711 F1H1A105A025 1 10V M C2413 F1H1H470A230 47 50V M C3712 F2A1C101A234 100 16V M C2414 F1H1H100A230 10 507 M C3720 F1H1A105A025 1 10V M C2415 F2A1H220A216 22 50V M C3721 F1H1A105A025 1 10V M C2431 F1H1A105A025 1 10V M C4000 F1H1H104A783 0 1 50V M C2433 F1H1A105A025 1 10V M C4001 F1H1H223A219 0 022 50V M C2436 ECJ1VB1A224K 0 22 10V M C5101 F2A1V102A154 1000 35V M C2437 ECJ1VB1H472K 4700 50V M C5102 ECA2AM100B 10 1007 M C2441 F1H1H102A219 1000 50V M C5103 ECA2AM100B 10 1007 M C2442 F1H1A105A025 1 10V M C5104 F2A1V102A154 1000 35V M C2443 ECJ1VB1A474K 0 47 10V M C5105 1 221 220 10V C2444 ECJ1VB1A474K 0 47 10V M C5106 ECJ1VB1H104K 0 1 50V c2509 F2A1H330A215 33 50V M c5107 ECJ1VB1H104K 0 1 50V M
4. 65344 L 0 015 y ZNuseo C5434 GOB9R5K00001 0 015 RH RL 15602 90895000001 05101 05102 B1DEGM000026 CURRENT CONTROL SWITCH W684 4 Hev 85151 E Q5111 150K B1BACG000023 05122 IC5101 15V REGULATOR 951 01 ROAR 0001834 VCC1 CODAZYY00005 RE R5123 3 REGULATOR IC 41 58 W w 25 cst 65107 2 E 160V16 5103 48 9 1 00710 69 1000 38 R5126 5 AW z be 8 1K 25 R5103 D5121 D 5187 85 8 C5101 58 55T 10 BOEAKPO00134 oy S 351000 5 R5152 8 5132 SG 0 05110 NADO 88 e B1GACFGA0002 26V REGULATOR 8 D5107 B0BA01500003 5 2 CD3 3V i PCONT MOTOR12V J Q5113 Q5112 B1GDCFNA0001 m B1BCCG000002 85137 CURRENT LIMITER SWITCH 2 m a CURRENT STABLISER 8 a 28 R5108 D5104 Em BS 4 0 01100004 05108 el 8Ll og B1ABCF000176 s LE Sx m SWITCH Y 8 81 5104 colle 35V1000 2 05114 85134 12 4 R5105 D5103 5113 05109 R5132 50 33 1 100004 BOBASRD00004 AGND 330 05114 Q5109 2SB0709AHL B1ABCF000176 VOLTAGE REGULATOR 11V REGULATOR E5103 92200001279 1 2 5 6 7 9 10 11 12 73 SA AK250GCP SPEAKERS cl TRANSFORMER CIRCUIT CN5950 IN SCHEMATIC IAGRAM 11 gt SA AK250GCP POWER CIRCUIT 14 SA AK250GCP 19 6 F Deck Circuit SCHEMATIC DIAGRAM 10 DECK CIRCUIT B SIGNALLINE mh TAPE RECORD SIGNAL LINE TAPE PLAYBACK SIGNAL LI
5. D7650 C7601 W7017 TRV MOTOR 57201 REST SW R7335 7302 SPDLE MOTOR TP7 TP8 x X TP9 x ESTO R7327 27338 CN7001 ye C7614 7002 15 78 F DECK P C B REPV0134B lt gt al o 501 a E 9 ste 5 8 2 W1920 E gt SIN a chos Ritog 1107 CD 1104 gt er 45 5972 gt S971 HALF MODE 180 Boza 5 EY 1C971 PL gt 3 E SOLENOID J140 06560868 5971 Y 01310 01309 CN1305 Byte 21 1193 17 15 13 19706 234 dEl Ar 20 18 16 14 12 10 8 6 4 2 CB ko R1331 W1977 2 21918 car E 201304 Skool er mag Q1312 4 Q1303 2 11302 9 3 w o a Z4 3 8161300 x E ox y Sy amp 2 61310 W1942 3 C1324 SZT U gt 4 eo T R1305 R1313 01317 1000 ES W1907 5 e
6. 7 uN DN MC ON eE GORSZA J 7 pray 121 FEE EEC cou NEC Lum Ae 1 1 AAA SA AK250GCP CD SERVO P C B 15 2 Deck P C B 8 Deck Mechanism P C B NE F ou Lu L o j o s JE J Z J EA 202810 9 00 DE WEN 1 1001 L IRC 12 171 T eo gt ra o or 61 44 s o os es e ov o o o o 5 oz 44 sz sra o or 52 44 o ss o o o eo J c o o o o o 3 v2 44 1C1001 om 7 1 eee AN a a STANDBY STANDBY couv os STANDBY 03 SA AK250GCP DECK MECHANISM P C B 49 SA AK250GCP 15 3 Main P C B SSS om te smosy oz La om o fo os o 33 83 48 soy 0 gt fo 92 Es Lo Lo SAA AAA coma ss o Eo 22
7. 3 Disassemble CD changer unit Remove 1 screw at rear panel Release 2 claws at L 4 R 4 Disassemble Main P C B Detach FFC cables at connectors CN2809 8 CN2808 5 Disassemble Power P C B Remove 5 screws Detach cable at connector CN5950 Transformer P C B 44 250 13 Procedure Checking Operation of Individual Parts of Deck Mechanism Unit 13 1 Operation Check with Cassette Tape 1 Pull up the EJECT lever using a rubber band Fig 6 2 Supply DC5V to MOTOR gt MOTOR rotates Fig 5 3 Insert a cassette tape to the unit 4 Supply DC9V to the plunger and turn the power ON and OFF gt Power PL PL Fig 5 a FWD PLAY Supply the plunger power in a flash ON approx 5 b FWD FF Supply the plunger power in a flash at PLAY mode ON approx 5msec c STOP Supply the plunger power in a flash at FWD FF mode ON approx 5msec d REV PLAY Supply the plunger power in a normal timing at STOP mode ON approx 200msec e REV REW Supply the plunger power in a flash at REV PLAY mode ON approx 50msec f STOP Supply the plunger power in a flash
8. EQ HBASS USB XM W nono st U KA WY tesji2RE6 J N PI ZN PR PR ANY FM JAN PI PGM MP3 WMA TIE 1 TR L 1 DISC A OFF RND PLAY SLP OREC EEPROM Checksum ROM Correction In TAPE mode 1 With no cassette tape inserted 2 Press STOP FF on main unit 3 Press SINGLE CHANGE on main unit 0 1 POWER button To exit press main unit button on In doctor mode 1 Press DISC on remote control To exit press ENTER button on remote control or POWER button on main unit In doctor mode 1 Press 0 button on remote control In doctor mode 1 Press DIMMER button on remote control In doctor mode 1 Press 4 button on remote control To exit press ENTER button on remote control or 0 1 POWER button on main unit In doctor mode 1 Press MUTING button on remote control Purpose To check for microprocessor firmware version and EEPROM checksum ROM correction 18 250 Below the procedures for this mode Step 1 Enter into Doctor mode for more information refer to section 9 2 on the key operation to enter into this mode Step 2 Check for firmware version and EEPROM checksum By pressing STOP button on main unit followed by 4 and 7 remote control When entering into DOCTOR the firmware version and checksum data of EEPROM if a
9. D o FO GAIN R7330 ME we 5 6K W W R7339 1k C7335 0 1 e 107002 BA5948FPE2 C7334 4 CH DRIVE IC 10V220 7301 7302 TRAVERSE MOTOR SPINDLE MOTOR SA AK250GCP CD SERVO CIRCUIT 65 SA AK250GCP 19 2 B Main Circuit SCHEMATIC DIAGRAM 2 10 11 12 13 14 A EJ MAIN CIRCUIT ____ 4BSIGNALLINE DD CD SIGNAL mtb TAPE RECORD SIGNALLINE TAPE PLAYBACK SIGNAL LINE Cam FM AM SIGNAL LINE 22 MAIN SIGNALLINE
10. CONTROL SWITCH 02949 DC DETECT SWITCH 22948 DETECT SWITCH D2946 SA AK250GCP MAIN 1 2 DIAGRAM 57 NANN FROM POWER io o e bo Pal BE 5 5 ES S 2 95 su NO oo uo 12 3 5 2 3 2 5 W s le C TBNVd d 9r 908ZNO d ZL 908ZNO z iz b 20041 0 E 02 z 1 8 Y GL 20 t 5 o 10020 05 9 b ui 00 N0 LOSZNO 8 1 8 koms 7 0 8 SL b Ki 200499 LOSZNO St 8 5 Z00 NO LOBZNO 9 Z00 NO LO8ZNO 4 21 ZL 9 Z00 NO LOBEND z 4 L H 069 00ZENO SOBZNO 8L lt 8 00 L b 4 IND ISHO OL lt aL 1064 00ZENO m 5 Cain 1064 00ZENO 3 z 3 lt 2 lt LL 3 i lt 3 m 3 Lv6ZQ 620 1064 2 TOENI i OLWX OHI 8SN 4 5 1064 00 ovd lt H3NNL OL n4 o o o X oa 9 z TOSEND 9 gt 2 000482 1C2801 oaa QR3106 X930 QR3105 REGULATOR E 2 1 2872 2
11. CP1902 12 DECK MECHANISM 5971 ON SCHEMATIC DIAGRAM 7 74 R1314 1K TO MAIN CIRCUIT CN2803 ON SCHEMATIC DIAGRAM 2 DECK_AD2 DECK_AD1 R1341 R1374 470 470 WR1903 Q1316 2SD09650RA SWITCH 3 3K R1345 1K Q1314 Q1315 B1GDCFGH0002 B1ACKD000006 SWITCH SWITCH CN1305 SA AK250GCP DECK CIRCUIT SA AK250GCP 19 7 H Transformer Circuit SCHEMATIC DIAGRAM 11 TRANSFORMER CIRCUIT ZNA C5940 50V1000u 2 000055 M 000055 N 5950 KOABLB000003 VOLTAGE SELECTOR C5920 50V1000u 77 5920 POWER CIRCUIT T5950 H5104 IN G4CYAYY00135 SCHEMATIC MAIN TRANSFORMER DIAGRAM 9 A F2 250 T1 6AL D5953 Tila BOE 00055 000055 5950 05951 25 0621 VOLTAGE REGULATOR BOEAKPOGO1 34 D5956 BOEAKP000134 5955 22u N R5960 4 7K C5956 50 47 05957 BOEAKP000134 00134 OOO 05958 01 34 BOEAKP000134 05960 B0BA02400030 O a PANEL 6555 5
12. gt gt gt 8 sleelz alalselezlejajza one 825 reos 9 oo u CONTROL SWITCH IT 6 sz LB 211 9 895 2 8 gt gt Glo Pi la je Q2937 E s 5o B1GBCFJJ0051 5 CHANGER PLUNGER CN2805 ON OFF SWITCH CN2806 2 PANEL CIRCUIT 6601 IN SCHEMATIC DIAGRAM 6 15 16 17 18 19 20 21 22 23 24 25 69 44 SA AK250GCP CIRCUIT 26 27 28 SA AK250GCP SA AK250GCP 19 3 C Panel Circuit SCHEMATIC DIAGRAM 6 s PANEL CIRCUIT B SIGNAL LINE MAIN SIGNAL LINE MIC SIGNAL LINE AUX SIGNAL LINE TRANSFORMER CIRCUIT CN5951 IN SCHEMATIC DIAGRAM 11 SUB PANEL CIRCUIT JW6001 IN SCHEMATIC DIAGRAM 7 0 56201 CD1 56202 w911 0 2 FL2 0 OPEN CLOSE o MULTI 0 6103 O ACIN CHANGE is T 56102 56101 Aaa a AR 2 E AS R 2 22 5 8 A KEY1_OUT KEY1 VREF R6458 sysev 33K 06458 0000583 5 R 4 pe 47 POWER D6635 BOBC5R600003 D6301 SYSGV BOACCK000005 PCONT SYS6V SYNC VREF SYNC RMT VREF
13. W833 2 MUSIC PORT W677 e 5 5 Es e E gt T 5207 3 czu 7465 JK6551 REWI 26481 JK6751 IAR C6481 R6109 JW6002 SENSOR MIC VOLUME MIC JK6501 W1015 lt RESO gt C6502 R6503 A 250 PANEL P C B W al O 00 co 10 11 12 13 80 SA AK250GCP 20 4 D Sub Panel P C B D SUB PANEL P C B REPV0131K JW6001 1 3 E 2 53 9 2 E 2 Go R6302 R6303 oo 00 od od VR6491 S6303 TAPE 3 56301 56106 W951 S6308 HARD OPEN STOP DEMO M EQ gt MANUAL EQ 2 bg I VOLUME SA AK250GCP SUB PANEL P C B 1 2 3 4 5 6 7 8 9 10 11 12 13 81 250 20 5 POWER P C B REPV0133D
14. MAZBOBSOML 16 44 0 19 87650 5 6 18 C7227 AW 50V1 ua 17 R7221 100 87218 pk N C7231 6 3V220 5 W7005 I 0 7230 1 1 01 GEEERFEI LB7262 LB7264 012 C7223 uh 50V4 7 DOGBROOJA008 eWeek C7203 04 0 CN7002 6 3220 LCHOUT AGND RCH OUT 44 E 50 ARFFB DVDD2 76 M s Beno 49 ARFOUT IODD1 77 7142 46 Ks 77 ST_IN 3300P Hi 50 ST_CLK p em 5 ST_REQ psa ur DGND LD SW MAIN CIRCUIT IN Vr C7233 4407232 CT243 a SCHEMATIC MN6627954MA 2 01 DIAGRAM 4 SERVO PROCESSOR 6 3220 Heo rend DIGITAL SIGNAL PROCESSOR 1279 DIGITAL FILTER D A CONVERTER MDATA 31 elmo BLKCK ST C7204 0 1 NSRVMONON 2 AW a smr Qusa R7327 R7349 ik 18k 1 LOADING TRV GAIN 26 DVSS1 SDRCK 100 LOADING W erisa o 8899 3 woos wron So cr ss 0 M we e V R7328 10k
15. Step 2 5 250 Step 3 ni Step 3 Release the claws outwards on both ends 250 Step 4 Lift the CD changer unit upwards to remove it Disassembly of Mecha Chassis Step 5 Step 6 10 6 Disassembly of Rear Panel Follow the Step 1 Step 5 of Item 10 4 Step 1 Remove 9 screws Pa 85 gt a 2 0 1 Step 1 9 Step 2 Detach cable at connector 2810 P C B LE gt gt lt 22 m I Bl Bet EP Top View CN2810 Step 3 Detach FFC cables at connectors CN2801 amp CN2805 on Main P C B Step 5 Remove 2 screws Step 6 Remove the Mecha Chassis Note For disassembly amp assembly of traverse unit please refer to section 10 15 of this service manual Please refer to original Service Manual for the Disassembly and Assembly of the CD Changer Unit CRS1 CN2805 oo oo gt gt i EF s JE e Top View CN2801 Step 4 Remove rear panel
16. Si eo A N A R2132 I S al gl g a U GND 3 3k C2675 g 2 amp amp E wea 100p TEN CD_RESET 82833100 3558 STANDBY d R2834 ppp 100 60 0 W634 W659 W657 W636 w662 22 CD GND 1 9500 OPEN_SW R2835 p100 a ere W w 2 R 52222 C2676 7 02603 CHG_CW R2836 100 969 IDCDET A GND 3 16V220 ZA BOBC9R000008 CHG CCW R2837 yy 100 55 PCONT a ala gt ST SW 2 R283844 100 sw 81 CD_RST GND s bt rz GND PLAY SW i R2899 W 100 82 CLOSE_SW C2986 3 3k 8 PLR 88 82840100 ST_GLK 7 100P W620 50 STANDBY x 49 XM_PCONT L ST_REQ 8 w603 G VOL_JOG 162801 ls XNCRST mre ODAV 12901 0 CD_3 3V 2 000482 _ 33V o AW 7 D PORT_PCONT MICROPROCESSOR MUTE A CD SERVO CD GND 10 i KEYS R2841 OO oz DECK MUTE_DAGS MUTE CIRCUIT LD_sw 11 2 R2842 44100 G key2 981 Vref TERR CN7002 2 STS SKEYT 106 DEMO_SET 5 IN SCHEMATI ST 5 DECK ADT AW 100 31 USB_SDA TxD 125 RATEG 7 5 13 DECK AD1 32 USB_SCL RxD U_GND SCL RxD XM RX IN DIAGRAM 1 U GND 14 A 33 USB VERRGS MCLK 15 MCLK DECK_AD2 560P 8 BUSY MDATA 16 MDATA KYREF gt 6 0 Mol 7 MD C2953 5 3 18 e 33V 0 560P 2 R2846 STATS RE R2848 Z We47Z 5 De M IRST 20 ED zat
17. 135 RHD26022 1 MOTOR SCREW M Q2943 B1ABCF000176 TRANSISTOR M 136 XTW2 5LFJ H BLOCK UNIT SCREW M Q2948 B1ABCF000176 TRANSISTOR M 137 XTW26 10SFJ SUB CHASSIS SCREW M Q2949 B1ABCF000176 TRANSISTOR M 138 XYC2 JF17FJ PCB EARTH SCREW M Q3601 2SC3940A0A TRANSISTOR 139 RFKJSTR280PP CHASSIS ASS Y M Q5101 1 000026 TRANSISTOR M Q5102 B1DEGM000026 TRANSISTOR M TRAVERSE DECK Q5103 1 000176 TRANSISTOR M Q5104 B1ABCF000176 TRANSISTOR M 360 RAE0165A V TRV UNIT WITHOUT CD M A Q5108 1 000176 TRANSISTOR M SERVO P C B Q5109 2SB0709AHL TRANSISTOR 361 0109 1 FLOATING SPRING M 05110 B1GACFGA0002 TRANSISTOR M 362 RMG0703 R FLOATING RUBBER M Q5111 B1BACG000023 TRANSISTOR M 363 RMRX0064 1 MIDDLE CHASSIS M Q5112 B1BCCG000002 TRANSISTOR M 364 RMS0757 1 FIXED PIN M Q5113 B1GDCFNA0001 TRANSISTOR M 365 XTN2 6GFJ SCREW 05114 B1ABCF000176 TRANSISTOR M 05153 B1ABCF000176 TRANSISTOR M PRINTED CIRCUIT BOARD Q5154 2SB0709AHL TRANSISTOR 05173 B1ABCF000176 TRANSISTOR M REPVO111A SERVO M RTL 05201 B1ABCF000176 TRANSISTOR M REPVO134B DECK P C B M RTL 05202 B1ADCF000063 TRANSISTOR REPX0321F DECK MECHANISM P C B M RTL Q5231 1 000005 TRANSISTOR M REPVO130N MAIN P C B M RTL 05950 B1AAKD000014 TRANSISTOR 0131 PANEL P C B M RTL Q5951 25 0621 TRANSISTOR REPVO131K SUB
18. Electrical Voltmeter To Headphone Jack r Frequency Indicator R ch TP4 6 Fig 9 14 1 4 Speed Adjustment Normal speed adjustment only during forward playback Product reference value 3 000 90Hz 1 Connect a frequency indicator Fig 10 2 Playback the middle portion of the test tape QZZCWAT 3 Adjust the motor screw so that the following output level is produced Fig 11 Adjustment Range 3 000 90Hz a constant speed 47 250 Frequency Indicator Rch of Headphone Output Jig Fig 10 Motor Volume Fig 11 14 1 5 Bias Voltage Check 1 Connect an electrical voltmeter Fig 12 Fig 9 for location of test points 2 Set the function to TAPE position 3 Insert a normal blank cassette tape QZZCRA 4 While pressing and holding down REC button press TAPE P button to pause the recording mode Repeat pressing the buttons till the recording pause mode is activated 5 Check that the output level is within the standard range Standard Range 16 3mV 1MQ Pe SIG Electrical Voltmeter GND Fig 12 14 1 6 Bias Frequency Check 1 Connect a digital frequency counter Fig 13 2 Set the function to position 3 Insert a normal blank cassette tape QZZCRA and press REC mode on main unit 4 Check that the output frequency is within the standard range Standard Value 98 8
19. T lt m o 8 lt gt Y3MOd WOH1 13S3H 443 L3SZU Q2803 CODBZGC00067 3 3 REGULATOR MUTEA lt IDCDET lt ASPDA lt ASPCLK 1 4000 SA AK250GCP MAIN 2 2 DIAGRAM 58 17 4 Panel Diagram 26481 6602 A2BD00000172 FL DISPLAY P EE IC6601 COHBB0000057 FL DRIVER 6555 CN59 2 CN6601 CN6601 CN6601 REMOTE SENSOR ira JK6501 MIC E Q6501 Q6502 MIC MIC 501 29 JK6751 MUSIC PORT 56201 56207 eremi CN2806 gt 7 m CN6601 CN2806 o 0 pup me ENSIS HEADPHONE N CN6601 SUB PANEL CIRCUIT w CNGGOT 3 9 56301 56309 16807 JW6002 s l VR6491 REP I MIC VOLUME I 1580 JW6002 RED 1115601 7116002 CN6601 4 16 I I 56106 56108 56101 56104 I I I SUB PANEL P C B EE gt SA AK250GCP TRANSFORMER TO MAIN 2 2 172 TO MAIN 2 2 TO MAIN 1 2 TO MAIN 2 2 250 PANEL DIAGRAM SA AK250GCP 17 5 Power Diagram TO MAIN 1 2 TO MAIN 2 2 22 72 272 CN2809 CN 5 2809 CN5102
20. 0 _ Tracking Drive O P 25 Jo jo Focusing Drive O P ve GND gt A IOVDD2 Digital Power Supply Voltage 2 VO DVDD1 Digital Power Supply Voltage 1 Built In 29 SRVMONO Servo Monitor 0 O P No connection 30 SRVMON1 Servo Monitor 1 No connection 31 js 32 ___ Oscillating input 33 CTRCRS Tracking Cross Comparator Terminal 4 Cs _ Vref Supply Voltage 35 j 1 Tracking Input Signal 1 36 1 Tracking Input Signal2 37 21 Focusing Input Signal4 38 Focusing Input Signal2 39 j 1 Focusing Input Signal 3 40 Focusing Input Signal 1 ar p APC Amp 210 ase Drive Current Cr Connection terminal 44 RFENV jo RF Envelope 45 ____ _____ 0 RF Summing Amp ____ 46 ___ 47 AVDD2 Analog Power Supply voltage 2 For DSL PLL 48 ARFDC Capacitive Connection Terminal 49 ARFOUT AGC Output po Feedback Signal 51 Audio RF Signal 52 DsLF Loop Filter Terminal For DSL 86 Pin No WO Function 53 REE 1 Reference P 2 Speed Compare 56 04 0 Audio O P LCH s7 jep Power Supply Voltage 1 59 fo Audio po 2 55 GND3 Digital Circuit 61 NSRVMONON jo Servo
21. RI Be EBI SHIET si FSC DAO lt 6a BT 1503 64 2 23 X reve CN7002 CN2801 LRCK 15 8 2A q OUTPUT DIGITAL FILTER PORT l BCLK 18 D4 g AFP y PWM LOGIC e 9 INA 27 DF MASH A SRDATA CH4 LEVEL 29 SHIFT 17 4 30 REGULATOR ANALOG A LOWPASS FILTER M7302 14 A D2 2 1 TRVP DIAC SPINDLE Y CH2 LEVEL MOTOR RV 13A 2 i 4 lt 5 ex a el 85 4 SP 1C7001 58 591 5t M7301 12 AD1 SPOUT MN6627954MA TRAVERSE ch LEVEL SERVO PROCESSOR s7201 BE DIGITAL SIGNAL SWITCH PROCESSOR I DIGITAL FILTER HB D A CONVERTER CNTOOZTCRDSOT LCH OUT 537 lt 21 2 RCH 247092 ET 22 55 SA AK250GCP CD SERVO BLOCK DIAGRAM SA AK250GCP 17 2 Deck Deck Mechanism Diagram DECK 1 HEAD DECK 2 HEAD DECK 2 ERASE HEAD 9 4 LCH 101001 AN7326K DECK R P IC RCH SWITCH gt NED Q1302 antun a MUTE gt SWITCH SWITCH DRIVER CN1305 16 Lom CN130 13 1305 11301 Q1309 01310 R 01304 01303 BIAS SWITCH SWITCH SWITCH 01312 MISY SWITCH SWITCH 01314 2 3 SWTCH 1 1000 C1AA00000612 A
22. 250 With reference to page 15 of the operating instruction manual 15 SA AK250GCP 9 Self diagnosis and special mode setting This unit is equipped with functions for checking and inspecting namely Self Diagnostic and Test Mode 9 1 Service Mode Summary Table The service modes can be activated by pressing various button combination on the main unit and remote control unit Below is the summary for the various modes for checking Player button Remote control button unit Application 4 7 Entering into Doctor Mode Refer to the section 9 2 Special Mode Table 1 for more information Mode Remote control button unit Application In Doctor Mode STOP 4 7 Display firmware version amp EEPROM checksum Refer to the section 9 2 1 for more information lt Set for cold start when reset start is executed the next time gt Refer to the section 9 2 for more information Muting Clock Setting Refer to the section 9 2 for more information Tape Eject Test Refer to the section 9 2 for more information DIMMER segment display for the FL Refer to the section 9 2 for more information DISC CRS1 Inspection Refer to the section 9 2 for more information 4 50 Setting check 6812 41 Setting check ep Volume 35 Setting check 2100 0 Setting check EQ Off EQ Heavy PROGRAM HIC force MUTE OFF c To Tape recording Inspec
23. oy W651 g2583 Nerd a Ea A 3707 3709 B u AB W463 WODA lt gt az E W240 e W504 W523 lt gt 29241 5 5 CN2801 2930 8 E 818 85 E 2 8
24. 05153 gt 05173 5 y QR5232 SWITCH QR5230 QR5233 SWITCH IC5301 C1BA00000487 2CH DIGITAL AMP JK5103 SPEAKER 2 r QR5231 1 5201 COJBAB000011 LOGIC 2809 CN5102 b FREQUENCY HOPPING SWITCH 5202 1 x5201 DJ FREQUENCY HOPPING SWITCH SWITCH SWITCH 05103 05104 FAN ON OFF SWITCH 2808 CN5103 gt 11 2808 CN5103 gt 9 165101 CODAZYY00005 REGULATOR IC pu D5130 CN2808 um EM d lt CN5103 EE 60 CURRENT CONTROL SWITCH 26V REGULATOR D5126 CN2809 CN5102 KI 4 12 05111 Q5101 05110 103 gt 05102 Q5108 Q5109 SPEAKERS 00 H5104 1 2 H5104 3 4 TO TRANSFORMER H5104 250 POWER DIAGRAM SA AK250GCP 17 6 Transformer Diagram 15950 D5950 D5953 H5104 CN5950 1 2 H5104 ED 4 W VOLTAGE TOPOWER SELECTOR H5104 ED mx 5950 05954 05957 5 e z lt 6555 CN5951 6555 CN5951 H6555 CN5951 b 05
25. BUSY No connection 35 ___ TX OUT No connection 36 __ No connection 37 xM 125 RATE connection 38 ACTIVE No connection 39 0 D Amp Control 44 7 0 Audio Muting Control EE_CS EFP EPM m EEPROM Chip Select Flash EPM for On board writer 87 SA AK250GCP IC7002 BA5948FPE2 IC 4CH Drive Pin No Mark 10 Function 15 D3 Motor Drive 3 reverse action output 16 D3 Motor Drive 3 forward action output 17 D4 Motor Drive 4 reverse action output 18 D4 Motor Drive 4 forward action output 2 Supply 2 for Driver 20 PGND2 Ground Connection 2 for Driver 21 24 NC Connecin 25 vec Power Supply terminai 26 ju Reference Voltage Input 27 INA 1 Motor Driver 4 Input 28 INS ft Motor Driver 3 Input IC2801 C2CBYY000482 System Microprocessor Pin No vo Function 45 EEPROMCLOCK VO 44 DAC RESET __ connection 45 ANT REV connection 6 0 Power Control Output DC Detect Input XM RST connection XM PCONT No connection STANDBY For Digital AMP 5 gt 0v during FHOP VOL_LED O Volume LED Drive 1 TUNER CE DMT Deck mute at mecha transition L mute OFF H mute ON SW 1 Bottom switch for CRS1
26. CD Changer Front Panel Unit 9 Unit Rear Panel RE Transformer Main P C B Deck Mechanism Tact Switch Unit Panel P C B PC B Power P C B Deck P C B Power IC Deck Mechanism P C B 27 250 10 3 Parts Location Main P C B Panel CD Servo P C B CD Loading P C B Tact Switch P C B Volume Knob Deck Mechanism P C B Power P C B Deck P C B 28 10 4 Disassembly of Top Cabinet Step 1 Remove 3 screws on both sides on top cabinet Step 2 Remove 5 screws at the rear Step 3 Lift the sides of top cabinet outwards Step 4 Push the top cabinet backwards to release catches Step 5 Remove top cabinet Step 3 10 5 Disassembly of CD Changer Unit CRS1 Follow the Step 1 Step 5 of Item 10 4 Step 1 Remove 1 screw at rear panel D Step 1 Qx1 Step 2 Detach the FFC cables at connectors CN2801 amp CN2805 on Main P C B CN2805 1000 000 000 B ion Top View cU bl SS gt sssu sasusIIS CN2801 29 Catches Step 4 Top cabinet Step 1 Voltage Selector i
27. DIAGRAM 6 gt CN5951 RL5950 D5966 R5963 BOAAFK000004 82 K6B1AEA00015 B W D5967 BOAAFK000004 05950 05954 B1AAKD000014 B1AAGC000007 2 VOLTAGE REGULATOR SWITCH 16 220 D5965 BOAAFK000004 15951 G4C2AAJ00005 SUB TRANSFORMER BOAAFK000004 L5950 ELF15N035AN JK5950 FC2 A 25950 110V 127V 220V 240V yl ERZV10V511CS 4 50 60Hz D5968 BOAAFK000004 05953 B1AACF000064 PCONT SWITCH Q5952 BOAAPKO00004 B1GACFJJ0018 C5952 SYNCHRONISATION SWITCH 10V47 C5962 10V220 72 05962 BOAAFK000004 BOBA6R800008 SA AK250GCP TRANSFORMER CIRCUIT 75 SA AK250GCP 76 SA AK250GCP 20 Printed Circuit Board Note Circuit board diagrams may be modified at any time with the development of new technology 77 SA AK250GCP 20 1 XTP13 7230 OR g A CD Servo P C B F Deck P C B Deck Mechanism P C B CD SERVO REPVO111A W7013 W7012 LB7263 wo 187262 60 LB7264 X 87254 12 65 X TP4 M7301
28. QR5233 kra gt 1 22 A AGND C5210 18 R5210 1 4 4 05153 05156 65427 5429 R5201 BOJAME000119 0 47 0 Wr 4 R ETE C5124 5123 Ay E N H AGND 35V1000 35 1000 LCH Q5201 X5202 COJBABO00011 55 856 f gt gt B1ABCF000176 05201 Rene 7530 LOGIC IC 58 58 Q5103 Q5104 FREQUENCY HOPPING 9 B1ABCF000176 d 3 FAN ON OFF SWITCH Q5202 1 Q5104 G B1ADCF000176 SEITE FREQUENCY HOPPING 05202 2308 05103 SWITCH 98058 R5209 5 AW C5208 5205 89 55 6 3220 ad za 85 oo kt AGND D5126 R5150 a BOACCK000005 220K 8 2 9 E 7 lt 2 a 5 8 1 2 2 SA AK250GCP POWER CIRCUIT 72 SCHEMATIC DIAGRAM 9 3 POWER CIRCUIT 1 TGND 2 p MODE MODE 3 18V 4 MAIN CIRCUIT GRANTS iman CN2809 ASPGND 7 DIAGRAMS LOW_RIN 9 j AGND F HOP2 11 FAN 12 CN5102 PGND 1 FLGND 2 3 MAIN CIRCUIT CN2808 J DGJDET a un mUTE F_HOP 8 Tan GRAM MOTOR 12v 9 XM5 3V 10 ev 2 CN5103 1 2 i B SIGNAL LINE B SIGNAL LINE MAIN SIGNAL LINE CD GD
29. 1 16W M R2436 D0GB392JA007 3 9 1 16W M R2874 DOGB472JA041 4 7 1 16W M R2437 D0GB153JA007 15 1 16W M R2881 DOGB221JA041 220 1 16W M R2441 DOGB180JA008 18 1 16W M R2882 DOGB106JA007 10 1 16W M R2443 DOGB180JA008 18 1 16W M R2883 D0GB334JA007 330 1 16W M R2444 DOGBROOJAO08 0 1 16W M R2886 DOGB105JA007 1 1 16W M R2445 D0GB152JA008 1 5 1 16W M R2894 D0GB473JA041 47 1 16W M R2446 D0GB332JA007 3 3K 1 16W M R2912 D0GB472JA008 4 7 1 16W M R2447 DOGB1ROJAO07 1 1 16W M R2914 DOGB472JA008 4 7 1 16W M 98 250 Ref Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks R2916 DOGB472JA008 4 7K 1 16W M 5206 DOGB105JA007 1 1 16W M R2918 DOGB102JA008 1K 1 16W M R5207 DOGB682JA008 6 8K 1 16W M R2921 DOGB472JA041 4 7K 1 16W M 5209 DOGB100JA007 10 1 16W M R2922 DOGB103JA008 10K 1 16W M 5210 DOGB121JA007 120 1 16W M R2924 DOGB102JA008 1 1 16W M
30. 250 10 7 Disassembly of Follow the Step 1 Step 5 of 10 4 Follow the Step 1 Step 4 of 10 5 Follow the Step 1 Step 4 of 10 6 Step 1 Detach FFC cables at connectors CN2803 amp CN2806 on Main P C B za Step 1 CN2806 CN2803 Step 2 Remove Main P C B 10 8 Disassembly of Transformer P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 4 of Item 10 6 CAUTION HOT DO NOT TOUCH THE HEAT SINK Step 1 Detach cables at connectors CN5950 amp CN5951 on Transformer P C B Step 2 Remove 3 screws Mounting screws for transformer to bottom chassis oo oo m D zdj m dh fl Step 1 mme CN5951 00000000 a CN5950 0000000 E Slot i L Transformer AAA En Step 3 NJ x3 Step 2 Step 3 Push the Transformer P C B backwards to remove it 31 250 10 9 Disassembly of Power Follow the Step 1 Step 5 of 10 4 Follow the Step 1 Step 4 of 10 5
31. BLKCK 10K 0 3 5 SW 1 AW wedo gt x 642 1 LOADING 22 A 0 e W o 2006 9 R2849 8 CN2801 1600P 4 ESTATUS 56K ES USB RST R2927 R2922 we79 8 4 1K 10k A Wj MN 8 RESTSW 0 124000 2 0 JK2803 CODBZGCO0067 K gt w598 C2981 C2983 0 USB_SCL 1000 3 3V REGULATOR p 1000 215110 as PAINT ca R2241 R2251 Wo e PA_IN_R 2 12k AW gna AM C11 v ka DDOO LL t AUX IN pas GE Sp 0 gl guo SH 2 2249 5 100 SI C15 J I A_GND W663 C16 0 L4000 5 Lus gt DOGBRO00JA008 14001 P DOGBRO00JA008 5 D4000 SEP BOJAME000114 a xX xx sek a 4 9 2 8 1459 ala 219 ab 2 S 55 gla app 9 ul 4 zlajo aja lt lt Slx Spb so w637 W616 W655 W625 W624 o 0 0 0 0 0 14 214 44 SA AK250GCP CIRCUIT 1 2 3 4 5 6 7 8 9 10 11 12 13 USB SIGNAL LINE
32. D5954 BOEAKP000134 DIODE M CN7002 K1MN22BA0005 22P CONNECTOR M D5955 BOEAKP000134 DIODE M D5956 BOEAKP000134 DIODE M CP1301 1 05 0043 5P CONNECTOR M D5957 BOEAKP000134 DIODE M CP1902 K1KA09BA0153 9 CONNECTOR M D5958 BOEAKP000134 DIODE M D5959 BOEAKP000134 DIODE M CS971 RJU071H09M1 9P CONNECTOR M D5960 BOBA02400030 DIODE M D5961 BOAAFK000004 DIODE M COILS 5 TRANSFORMERS D5962 BOAAFK000004 DIODE M D5964 BOBA6R800008 DIODE M 11301 6227200000024 BIAS OCS COIL M D5965 BOAAFK000004 DIODE M 11302 G0C470JA0052 RF CHOKE COIL M D5966 BOAAFK000004 DIODE M L2901 G0C101JA0052 INDUCTOR M D5967 BOAAFK000004 DIODE M 14000 DOGBROOJA008 JUMPER M D5968 BOAAFK000004 DIODE M 14001 DOGBROOJA008 JUMPER M D5969 BOAAFK000004 DIODE M L5101 JOJKB0000037 FILTER M D6301 BOACCK000005 DIODE M L5102 JOJKB0000037 FILTER M D6458 B3AAA0000583 DIODE M 15301 GOB185LA0002 COIL M D6635 BOBC5R600003 DIODE M 15601 GOB9R5K00001 COIL M A D7650 MAZ80560ML DIODE M 15602 GOB9R5K00001 COIL A 16502 GOC100JA0052 INDUCTOR M W257 BOJAMK000015 DIODE M LB7262 DOGBROOJA008 CHIP JUMPER M VARIABLE RESISTORS LB7263 DOGBROOJA008 CHIP JUMPER M LB7264 DOGBROOJA008 CHIP JUMPER M VR6491 EVEKE2F3024B VR VOLUME JOG M VR6511 EVUF2AF15B14 VR MIC 206 M T5950 4 00135 MAIN TRANSFORMER IM A T5951 G4C2AAJ00005 SUB TRANSFORMER IM A SW
33. ORDER NO MD0704056CE Service Manual COMPACT DIGITAL AUDIO Remote SB AK250 _ 58 250 250 Control CD Stereo System SA AK250GCP Colour S Silver Type Notes This model s CD mechanism changer unit is CRS1 Please refer to the original Service Manual Order No MD0509368C0 for this mechanism Specifications n AMPLIFIER SECTION RMS output power THD 10 both channels driven 1 kHz Total output power n FM AM TUNER TERMINALS SECTION Preset station 115 W per channel 3 Q 230 W FM 20 stations AM 15 stations Frequency Modulation FM Frequency range 87 50 to 108 00 MHz 50 kHz steps 4 0 uV 2 2 uV 75 unbalanced Sensitivity S N 26 dB Antenna terminal s Amplitude Modulation AM Frequency range 522 to 1629 kHz 9 kHz step 520 to 1630 kHz 10 kHz step Sensitivity S N 20 dB at 999 kHz Audio performance Amplifier 560 V m Input Sensitivity Input Impedance Aux 250 mV 14 7 kQ Music Port input jack Terminal Panasonic Stereo 3 5 mm jack Sensitivity 100 4 7 Phone jack Terminal Stereo 3 5 mm jack Mic jack Terminal Mono 3 5 mm jack Sensitivity 0 7 mV 6800 n CASSETTE DECK SECTION Track system 4 track 2 channel Heads Record playback Solid permalloy head Erasure Double gap ferrite head Motor DC servo motor AC bias 100 kHz AC erase 100 kHz 4 8 cm s Recording system Erasing system Tape speed Overall
34. P_GND RMT KEY1 P_GND 1 2K 1K 1 8K 2 7 2 2K R6208 R6207R6206 R6205 R6204 R6203 FL6602 A2BD00000172 FL DISPLAY 6601 516 c 57515 FL DRVIER 220 MOT12V H BASS_LED W913 KEY3 2 VOL LED VOL LED KEY1 OUT W926 W OUT KEY1 KEYIN AW AW R6601 470 6636 100P EP C6623 50V22 Q6501 Q6502 B1AACF000064 MIC AMP L6502 G0C100JA0052 009 C6509R6509 100 GND w914 0 Ny 6635 50V2 2 KEY2 IKEY1 KEY2 H BASS_LED 9 KEY3 FL_CLK H BASS_LED B3RAD0000146 REMOTE SENSOR FL_DOUT FL CS h2 FL_DOUT FL_RST 13 FL_CS hae RT 11 VJOG_A 15 VOL LED 16 VJOG A MOT12V VOL LED 18 MOT12V PA IN R PA IN L PA_IN_GND 3 3V PA_IN_L GND2 3 3 HPR D HP HP_L HP_GND MIC_GND W905 HP L MIC MIC_GND 15V MIC 15V CN6601 wi SO 0 047 JK6501 was REXV0094 VR651 EVUF2AF15B14 MIC VOLUME REXV0092 R6763 0 W1003 AW
35. UP SENSOR I Up Down sensor for CRS1 pia 0 Plunger Control _____ PHOTO I 56 mechanism only MTR I O Deck motor control 41 for motor OFF I O when record circuit is operating MMODO Micon Mode Switching for USB Version Up using CD PAM CS PAM Region Model Chip Select Power Supply 5V HBASSIED o Harmonic Bass LED Drive Mss D PORT R SKIP No connection D PORT F SKIP No connection D PORT STOP __ connection D PORT RES2 No connection D PORT RES No connection __ ces 0 FL Driver Chip Select 1 JFLDOUT 0 Serial Data To FL Driver 2 0 Serial Clock FL Driver 3 voL epes fi VOL LED Chip Select 46 058 REQ No connection 75 status Servo LSI Status Input 6 MD Jo VO REC SA AK250GCP Pin No vo Function EGZ E CD Limit Switch Input for the most Inner Point Active Low joo SW 1 Home Switch for 86 STSW _ 884 REG 90 vosos 98 99 ___ DEMO_SET Connect to GND Reference for A D 5V Analog Power Supply Input H Default demo On L Default demo off M NM 92 Key3 input 7 M 5 88 SA AK250GCP 23 Exploded Views 23 1 Cabinet Parts Location PANEL PCB 22 C DEC
36. 05122 BOEAKP000134 DIODE 02417 BIABCF000176 TRANSISTOR 05125 BOAAFK000004 DIODE 02441 1 000005 TRANSISTOR D5126 BOACCK000005 DIODE M Q2511 B1GDCFJJ0047 TRANSISTOR M D5130 BOJAME000025 DIODE M Q2803 BIGBCFJJ0051 TRANSISTOR 05152 B0BA01900005 DIODE 02936 BIACKDO00006 TRANSISTOR 05153 000119 DIODE M 94 250 Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks D5154 BOJAMEO00119 DIODE M CN3601 K1KA10AA0031 10P CONNECTOR M D5155 BOJAMEO00119 DIODE M CN5102 K1KA12AA0031 12P CONNECTOR M D5156 BOJAMEO00119 DIODE M CN5103 1 12 0031 12P CONNECTOR M D5950 000055 DIODE M CN5950 K1KA09AA0319 9P CONNECTOR M D5951 000055 DIODE M CN5951 K1KA09AA0193 9P CONNECTOR M D5952 000055 DIODE M CN6601 K1MN30AA0004 30P CONNECTOR M D5953 000055 DIODE M CN7001 K1MN16B00154 16P CONNECTOR M
37. 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 first turned off and then on again 1 5 Safety Part Information Safety Parts List There are special components used in this equipment which are important for safety These parts are marked by in the Schematic Diagrams amp Replacement Parts List It is essential that these critical parts should be replaced with manufacturer s specified parts to prevent shock fire or other hazards Do not modify the original design without permission of manufacturer Table 1 360 _ RAEO0165AV TRAVERSE UNIT A isso CHOKECOL A 1602 _ GOBORSKOO001 CHOKECOW 555 KOABLBO0008 SW VOLTAGE SELECTOR A 756 _ G4CYAYY00135 TRANSFORMER 75960 4 2 0005 SUB TRANSFORMER A 2595 2 511 5 ZENER Risso 0015 __ POWERRELAY Fi 50312 015 o Po FUSE A FP5920 K5G702A0009 FUSE PROTECTOR FP5940 K5G70270004 FUSE PROTECTOR FP5950 1 K5G402A0005 FUSE PROTECTOR JK59500 2 2 000011 Az K2CQ2CA00006 ACCORD 2 Prevention of Electro Static Discharge ESD to Electro
38. Checking Repairing of Panel Deck amp Deck Mechanism 1 Remove Top cabinet Remove 3 screws on L R side Remove 5 screws on rear panel 4 Connect CRS1 4 Fan Connect 2P cable fan to CN2810 on Main P C B Connect FFC cable between connector CN7002 to connector CN2801 on Main P C B Connect FFC cable between connector CN1 to connector CN2805 on Main P C B Remove top cabinet Tact Switch P C B CRS1 CN2805 Panel P C B CN1 y is 2 Disassemble CD unit Remove 1 screw at rear panel Release 2 claws at L amp R 3 Remove Rear Panel Remove 8 screws at rear panel Detach cable at CN2810 on Main 43 250 12 4 Checking Repairing of Power 1 Remove Top cabinet 6 Connect Panel P C B CRS1 Remove 3 screws on L R side Transformer Fan Remove 5 sorews on rear pana Connect 2P cable fan to CN2810 on Main Remove top cabinet Connect FFC cable between connector CN7002 to connector CN2801 on Main P C B Connect FFC cable between connector CN1 to connector CN2805 on Main P C B 2 Remove Rear Panel Connect FFC cable between connector H5104 to connector CN5950 on Transformer P C B CN2810 Detach cable at connector CN2810 Bewer fan on Main P C B Front Panel Unit
39. E GB7241 1 2001 8B GLASS LASER PRODUCT Inside of product AA EI RDZ 250 5 About Lead Free Solder PbF 5 1 Service caution based on legal restrictions 5 1 1 General description about Lead Free Solder PbF The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation The normal solder is the alloy of tin Sn and lead Pb On the other hand the lead free solder is the alloy mainly consists of tin Sn silver Ag and Copper Cu and the melting point of the lead free solder is higher approx 30 degrees 86 more than that of the normal solder Definition of PCB Lead Free Solder being used The letter of PbF is printed either foil side or components side on the PCB using the lead free solder See right figure Service caution for repair work using Lead Free Solder PbF lead free solder has to be used when repairing the equipment for which the lead free solder is used Definition The letter of PbF is printed on the using the lead free solder put lead free solder it should be well molten and mixed with the original lead free solder Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC Since the melting point of the lead free solder is higher than that of the normal lea
40. For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error 250 Diagnosis Contents Description of error Automatic FL Display Remarks PDRV Cam gear gear assembly abnormal UD base asssembly abnormal abnormal UD base asssembly F1NG Fail safe mode For open close tray unit s F2NG Fail safe mode For open close tray unit s SRVC unlock the traverse unit for service RSET Cam gear jam close sensor faulty Cam gear does not move from HOME to PLAY drive position UD Base assembly does not move upwards from tray 5 to tray 2 UD Base assembly does not move downwards from tray 1 to tray 5 When tray open operation is performed it fails to open It will automatically close all trays after the time out by the microprocessor During this time when it fails the error code will appear When the tray close operation is performed it fails to close It will automatically open all trays after the time out by the microprocessor During this time when it fails the error code will appear 1 All trays set to STOCK position 2 Mechanism set to tray 5 3 Cam gear set to HOME position D
41. M RMM0131 1 BRAKE ROD 29 RKMV0071 SJ TOP PANEL M RMM0133 1 EJECT ROD 30 RKWV0068H K FL WINDOW M RMQ0519 REEL HUB 31 RMBV0042 2 CASS LID SPRING M RMS0398 1 MOVING CORE 32 RMBV0052 DVD LID SPRING M RXQ0470 2 PLUNGER ASS Y 33 RMGX0033 CUSHION RUBBER M RMC0061 PACK SPRING 34 RMGX0044 1 D AMP INSULATOR M RXF0061 1 FLYWHEEL F 557 35 L6FALEFH0030 UNIT M RXG0040 FF RELAY GEAR ASS Y 36 RMKX0113 3 CD CHASSIS M RMK0283A 2 SUB CHASSIS 37 RMKX0118A BOTTOM CHASSIS M RXL0124 PINCH ROLLER F ASS Y 39 RMVV0073 K FL WINDOW BACKGROUND M RMB0401 PINCH ARM SPRING F 44 RUS757ZAA CASS HALF SPRING M RXL0126 WINDING ARM ASS Y 45 RXGX0002 DAMPER GEAR M RXQ0412 3 HEAD PANEL ASS Y 46 RXXV0048 HEAT SINK UNIT M RMB0405 1 FR ROD SPRING 93 SA AK250GCP Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks 133 2 01 32 1 M Q2937 B1GBCFJJ0051 TRANSISTOR M 134 0120 CAP MOTOR ASS Y M 02942 B1ACKD000006 TRANSISTOR
42. M W662 ERJ8GEYOROOV CHIP JUMPER M W589 ERJ3GEYOROOV JUMPER M W663 ERJ6GEYOROOV CHIP JUMPER M W590 ERJ3GEYOROOV JUMPER M W664 ERJ3GEYOROOV CHIP JUMPER M 1591 ERJ3GEYOROOV JUMPER M W666 ERJ6GEYOROOV CHIP JUMPER M w592 ERJ6GEYOROOV CHIP JUMPER M W667 ERJ6GEYOROOV CHIP JUMPER M W593 ERJ3GEYOROOV CHIP JUMPER M W668 ERJ6GEYOROOV CHIP JUMPER M 1594 ERJ3GEYOROOV JUMPER M w669 ERJ8GEYOROOV CHIP JUMPER M w595 ERJ3GEYOROOV CHIP JUMPER M W670 ERJ6GEYOROOV CHIP JUMPER M W596 ERJ3GEYOROOV CHIP JUMPER M W671 DOGDROOJA017 CHIP JUMPER M W597 ERJ3GEYOROOV CHIP JUMPER M W672 ERJ8GEYOROOV CHIP JUMPER M W598 ERJ3GEYOROOV CHIP JUMPER M W673 ERJ8GEYOROOV CHIP JUMPER M 1599 ERJ8GEYOROOV JUMPER M W674 ERJ8GEYOROOV CHIP JUMPER M w600 ERJ3GEYOROOV JUMPER M W675 ERJ6GEYOROOV CHIP JUMPER M w601 ERJ3GEYOROOV JUMPER M W676 ERJ6GEYOROOV CHIP JUMPER M w602 ERJ3GEYOROOV JUMPER M W677 ERJ6GEYOROOV CHIP JUMPER M W603 ERJ3GEYOROOV JUMPER M W678 ERJ6GEYOROOV CHIP JUMPER M W604 ERJ3GEYOROOV JUMPER M W679 ERJ3GEYOROOV JUMPER M W605 ERJ3GEYOROOV JUMPER M W679 ERJ8GEYOROOV CHIP JUMPER M W606 ERJ8GEYOROOV JUMPER M W680 ERJ3GEYOROOV CHIP JUMPER M w607 ERJ3GEYOROOV JUMPER M w681 ERJ3GEYOROOV JUMPER M w608 ERJ3GEYOROOV JUMPER M w682 ERJ3GE
43. R3702 DOGB223JA008 22K 1 16W M R5952 DOAE472JA048 4 7K 1 4W M R3704 DOGB223JA008 22 1 16W M R5954 DOAE824JA048 820K 1 4W M R3706 D0GB683JA007 68 1 16W M R5957 DOAE103JA048 10K 1 4W M R3707 DOGBROOJAO08 0 1 16W M R5958 DOAE103JA048 10K 1 4W M R3708 D0GB683JA007 68 1 16W M R5960 DOAE472JA048 4 7 1 4W M R3709 D0GB683JA007 68K 1 16W M R5961 DOAE151JA048 150 1 4W M R3711 D0GB473JA008 47 1 16W M R5963 DOAF820JA039 82 1 4W M R3712 DOGB473JA008 47K 1 16W M R6102 DOGB102JA008 1 16W M R3720 DOGBROOJAO08 0 1 16W M R6103 DOGB102JA008 1K 1 16W M R5101 DOGB103JA008 10K 1 16W M R6104 DOGB122JA008 1 2K 1 16W M R5103 D0C1103JA020 10K 1W M R6105 DOGB182JA008 1 8 1 16W M R5105 DOGB103JA008 10 1 16W M R6106 D0GB222JA041 2 2 1 16W M R5106 D0GB223JA041 22 1 16W M R6107 D0GB272JA007 2 7 1 16W M R5107 DOGB561JA007 560 1 16W M R6108 DOGB472JA008 4 7 1 16W M R5108 DOGB470JA008 47 1 16W M R6109 D0GB393JA007 39 1 16W M R5109 DOGB102JA008 1K 1 16W M R6199 DOGB103JA008 10 1 16W M R5110 D0GB222JA041 2 2 1 16W M R6202 DOGB102JA008 1K 1 16W M R5111 DOGB104JA007 100K 1 16W 6203 DOGB102JA008 1 16W M 5112 ERJ3GEYJ564V 560 1 16W M R6204 DOGB122JA008 1 2K 1 16W M R5113 ERJ3GEYJ564V 560K 1 16W M R6205 DOGB182JA008 1 8 1 16W M R5114 ERJ3GEYJ1R8V 1 8 1 16W M R6206 D0GB222JA041 2 2 1 16W M R5123 DOC14R7JA020 4 7 1W M R
44. W639 ERJ6GEYOROOV CHIP JUMPER JK6551 K2HC103A0024 JK HP M W640 ERJ6GEYOROOV JUMPER M JK6751 K2HC1YYA0002 JK MUSIC PORT M W641 ERJ6GEYOROOV CHIP JUMPER M W642 ERJ6GEYOROOV CHIP JUMPER M EARTH TERMINALS W643 ERJ6GEYOROOV CHIP JUMPER M W644 ERJ6GEYOROOV JUMPER M E5101 K92200001279 EARTH PLATE M W645 ERJ6GEYOROOV CHIP JUMPER M E5103 K92200001279 EARTH PLATE M W646 ERJ6GEYOROOV CHIP JUMPER M W647 ERJ6GEYOROOV CHIP JUMPER M WIRE W648 ERJ6GEYOROOV CHIP JUMPER M W649 ERJ6GEYOROOV CHIP JUMPER M W12 ERJ8GEYOROOV JUMPER M W650 ERJ6GEYOROOV CHIP JUMPER M W575 ERJ3GEYOROOV JUMPER M w651 ERJ3GEYOROOV CHIP JUMPER M W576 ERJ3GEYOROOV JUMPER M 652 ERJ6GEYOROOV JUMPER M W577 ERJ3GEYOROOV JUMPER M W653 ERJ6GEYOROOV CHIP JUMPER M W579 ERJ3GEYOROOV JUMPER M W654 ERJ6GEYOROOV CHIP JUMPER M W580 ERJ3GEYOROOV JUMPER M W655 ERJ6GEYOROOV CHIP JUMPER M W581 ERJ3GEYOROOV JUMPER M W656 ERJ6GEYOROOV CHIP JUMPER M W582 ERJ3GEYOROOV JUMPER M W657 ERJ6GEYOROOV CHIP JUMPER M W583 ERJ3GEYOROOV JUMPER M w658 ERJ6GEYOROOV CHIP JUMPER M W584 ERJ3GEYOROOV JUMPER M w659 ERJ6GEYOROOV CHIP JUMPER M W586 ERJ3GEYOROOV JUMPER M W660 ERJ6GEYOROOV CHIP JUMPER M W587 ERJ3GEYOROOV CHIP JUMPER M W661 ERJ6GEYOROOV CHIP JUMPER M W588 ERJ3GEYOROOV CHIP JUMPER
45. result CLVS I NG O OK TLOCK I NG O OK FLOCK I NG O OK 17 SA AK250GCP In any mode 1 Press STOP button on main unit follow by 4 and 7 on remote control To exit press ENTER button on remote control or POWER button on main unit In any mode 1 Select CD M for CD mode 2 Press and hold STOP button for 3 seconds follow by FF gt i To exit press POWER main unit or remote control button on In CD Test Mode 1 Press 0 button on the remote control To exit press POWER main unit or remote control button on In Self Diagnostic Mode 1 Select CD IM for CD mode 2 REW lt button To exit press POWER main unit The tray will return to PLAY position and then power off button on SA AK250GCP To unlock the traverse unit for service FL Display sequence Display 1 gt 2 To check the function operation of changer unit For more information refer to 9 3 Open Close Test Tape Eject Test check on the tape eject function For deck 1 2 FL Display Test check the segments display segments will light up and LED will blink at 0 5 second interval Cold Start To activate cold start upon next AC power up Clock Setting Check To indicate that a clock time was set properly 9 2 1 FL Display Display 1
46. 0 01 50V M C7203 F2A0J221A200 220 6 3V M c7204 ECJ1VB1C104K 0 1 16V M c7216 ECJ1VB1H681K 680P 50V M c7217 ECJ1VB1C104K 0 1 16V M 102 YSP0704
47. 1 to Step 2 For information 5101 05101 05102 05111 and Q5112 does not have IC clip 4 CN2803 Step 1 Kiku Step 2 CN5951 Step 3 Bent the front panel unit slightly forward as arrow shown Bottom Panel Chassis Unit Step 3 10 11 Disassembly for Panel P C B Follow the Step 1 Step 5 of 10 4 Follow the Step 1 Step 4 of 10 5 Follow the Step 1 Step 5 of 10 10 Step 1 Remove the volume knob Volume Knob Step 2 Remove 6 screws at Panel P C B Step 3 Release 8 catches SA AK250GCP Step 4 Release 2 claws outwards Step 5 Remove the front panel unit Note Ensure 2 claws located at the bottom chassis is seated into the 2 slots at bottom of front panel at 2 catches one on each side of bottom chassis to be aligned to front panel s slot Assembly is secured upon hearing clicking sound Step 2 x 6 Panel P C B 9 Catches Catch Step 4 Remove Panel P C B 10 11 1 Disassembly of Lid Step 1 Lift the spring sideward 33 250 Spring Step 2 Remove Lid ALI TEN Note Do not misplace the spring 10 12 Disassembly of Tact Switch P
48. 1 16W M R2281 DOGB471JA008 470 1 16W M R2705 D0GB332JA007 3 3K 1 16W M R2282 DOGBROOJAO08 0 1 16W M R2706 D0GB332JA007 3 3K 1 16W M R2283 DOGB104JA007 100 1 16W M R2801 DOGB101JA007 100 1 16W M R2284 DOGBROOJAO08 0 1 16W M R2802 DOGB103JA008 10 1 16W M R2285 DOGBROOJAO08 0 1 16W M R2804 DOGB101JA008 100 1 16W M R2286 DOGBROOJAO08 0 1 16W M R2805 DOGB103JA008 10 1 16W M R2301 D0GB153JA007 15 1 16W M R2808 DOGB101JA008 100 1 16W M R2311 DOGB471JA008 470 1 16W M R2812 DOGB104JA007 100 1 16W M R2312 D0GB103JA007 10K 1 16W M R2815 DOGB101JA008 100 1 16W M R2313 DOGB104JA007 100 1 16W 22816 DOGB101JA008 100 1 16W M R2315 D0GB683JA007 68K 1 16W M R2817 DOGB103JA008 10 1 16W M R2316 D0GB222JA041 2 2 1 16W M R2818 DOGB103JA007 10 1 16W M R2317 DOGB103JA007 10 1 16W M R2825 DOGB101JA007 100 1 16W M R2318 DOGB104JA007 100 1 16W M R2826 D0GB473JA041 47K 1 16W M R2321 DOGBROOJAO08 0 1 16W M R2827 D0GB473JA041 47 1 16W M R2326 DOGB103JA008 10K 1 16W M R2828 D0GB473JA041 47 1 16W M R2328 D0GB153JA007 15 1 16W M R2829 D0GB473JA041 47 1 16W M R2329 D0GB103JA007 10K 1 16W M R2830 D0GB473JA041 47 1 16W M R2330 D0GB392JA007 3 9 1 16W M R2831 D0GB473JA041 47 1 16W M R2341 DOGB180JA008 18 1 16W M R2832 D0GB473JA041 47K 1 16W M R2343 DOGB180JA008 18 1 16W M R2833 DOGB101JA007 100 1 16W M R2344 DOGBROOJAO08 0 1 1
49. 25v c2274 1 1 103 219 0 01 50V 1123 ECJ1VB1H271K 270 50 C2275 F1H1H332A013 3300 50V M C1201 F2A1H1R0A145 1 50V c2281 F1H1A105A025 1 107 M c1202 F1H1H471A219 470P 50V M c2282 F1H1A334A036 0 33 10V M c1203 F2A1C101A147 100 16V M C2283 F1H1H473A783 0 047 50V M c1204 1 1 273 002 0 027 25V M c2301 F1H1A224A007 0 22 10V M c1205 F1H1H471A219 470 50V M c2302 F1H1A224A007 0 22 10V M c1206 F2A1H2R2A145 2 2 50V M c2311 F1H1A105A025 1 10V M c1207 F1H1H152A219 1500 50V M c2312 F1H1A105A025 1 10V M c1208 F2A1C100A147 10 16V M C2313 F1H1H470A230 47 50V M C1209 F2A1H3R3A145 3 3 50V M C2314 F1H1H100A230 10 50V M C1210 ECJ1VB1H682K 6800 50V M C2315 F2A1H220A216 22 50V M C1221 F1H1H102A219 1000 50V M C2321 F1H1A105A025 1 10V M C1222 F1H1E103A029 0 01 25v C2325 1 010 1 50V c1223 ECJ1VB1H271K 270P 50V M c2329 ECJ1VB1H472K 4700P 50V M 1301 ECA1HAKOR1XB 0 1 50 c2330 ECJ1VB1A224K 0 22 10V M c1302 F1H1C333A071 0 033 16V M c2341 F1H1H102A219 1000 50V M c1303 F1H1C333A071 0 033 16V M C2342 F1H1A105A025 1 10V M 100 250
50. 5230 ERJ3GEYJ124V 120 1 16W M R2927 DOGB102JA008 1K 1 16W M R5231 ERJ3GEYF124V 120K 1 16W M R2936 DOGB102JA008 1K 1 16W M R5232 ERJ3GEYF273V 27K 1 16W M R2937 DOGB103JA008 10K 1 16W M R5233 ERJ3GEYF823V 82K 1 16W M R2939 D0GB473JA041 47 1 16W M R5234 DOGB124JA008 120 1 16W 22940 DOGB824JA008 820K 1 16W M 5301 D0GB562JA007 5 6 1 16W 2941 DOGB103JA008 10 1 16W M R5302 D0GB562JA007 5 6K 1 16W M R2942 D0GB562JA007 5 6K 1 16W M R5303 D0GB562JA007 5 6 1 16W M R2943 DOGB103JA008 10K 1 16W M R5304 D0GB562JA007 5 6 1 16W M R2944 D0GB472JA041 4 7K 1 16W M R5305 ERG1SJ220E 22 1W M R2945 DOGB103JA008 10 1 16W M R5306 ERG1SJ220E 22 1W M R2946 D0GB563JA007 56 1 16W M R5307 ERJ8GEYJ100V 10 1 8W M R2947 DOAF270JA039 27 1 4W M R5308 ERJ8GEYJ100V 10 1 8W M R2948 DOGB101JA007 100 1 16W M R5312 D0GB563JA007 56 1 16W M R2949 D0GB473JA041 47 1 16W M R5313 D0GB154JA007 150 1 16W M R3210 DOGB104JA007 100 1 16W M R5317 DOGB103JA008 10K 1 16W M R3211 DOGB101JA007 100 1 16W M R5330 DOGB124JA008 120 1 16W 3212 DOGB101JA007 100 1 16W M R5412 D0GB224JA007 220 1 16W M R3213 DOGB101JA007 100 1 16W M R5413 DOGB104JA007 100 1 16W M R3303 DOGB103JA008 10 1 16W M R5521 ERJ6GEYJ105V 1 1 10W M R3700 DOGBROOJAO08 0 1 16W M R5522 ERJ6GEYJ105V 1 1 10W M R3701 D0GB683JA007 68 1 16W M R5951 DOAE332JA048 3 3K 1 4W M
51. 6 8 01204 2110161207 R1209 8 4 8 7 e RTO 8 Sa 1109 P CP13012 5 A akon LE TO HEAD 5 2 als ZU W1933 ol 1938 lt x 2 R1063 Sw Ole S Vs e R120 W1975 512 RSE w1913 5 lt gt lt gt S 15 1222 ete W1931 W1903 2 Ea At W1948 ZN A O 1208 R1371 p 064 2 951 5 81201 A sk 1345 W1902 1203 0l O wiae 2 ZK Q1316 R1342 5 ZI 7 WR1903 EN W1976 191 TO MOTOR lt gt R1344 01315 y SE c amp Toim B R1401 W1947 CP1902 W1941 o 4 a R1318 R1402 x 975 RECINH F 11 SA AK250GCP CD SERVO DECK DECK MECHANISM P C B 12 13 SA AK250GCP 20 2 B Main P C B MAIN 0130 AUX L2996 565 2705 R2702 8 2 5 FF 2427 a 1 i FR 62312 5 2 R2446
52. AK250GCP CIRCUIT 66 15 16 SCHEMATIC DIAGRAM 3 EJ MAIN CIRCUIT TO MAIN SECTION 1 4 18 SIGNAL LINE GD 19 20 21 22 mb TAPE RECORD SIGNAL LINE 222 MAIN SIGNAL LINE gt MIC SIGNAL LINE Q2317 Q2417 F T GND MUTE D AMP 15V HIGH_L IN HIGH_R IN ASP_GND LOW_L IN IN SCHEMATIC 1 B1ABCF000176 mE MUTING SWITCH Wo 2437 8 ve 4700p AA e e RM AW gis 15K 02317 FADE ET a gt 10k R2318 W AW 1 N 02431 0 R2329 R2321 2325 10K c2321 0 10V1 R2326 W 4F O W N Wo 285 4700 go gt sat SA 8 w586 o AW 0 R2418 100k R2416 Q2417 2 2k Q N C2943 50V2 2 TO MAIN SECTION 4 4 67 LOW_R IN A_GND SUBW FAN 30 REXV0092 MUTE_D_AMP SA AK250GCP 25 26 27 A Capi Far 4 e R3700 REC L aM C3704 3706 lt B REI Ju 68k La 1 ee BR REF_R Fl T 1C3700 GND 68 4 000244 W 7AR3704 C3705 63707 H AMETS C 0 22K 0 0 REC RG ANN e K3705 R3711 T c3710 100 iis ZT ae wes
53. C B Follow the Step 1 Step 5 of 10 4 Follow the Step 1 Step 4 of 10 5 Follow the Step 1 Step 5 of 10 10 Step 1 Remove 6 screws at Tact Switch P C B Tact Switch P C B Step 2 Remove Tact Switch P C B Step 1 E 10 13 Disassembly of Deck mechanism unit Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 Step 1 Remove the 4 screws Step 1 Step 3 Tilt the cassette mechanism unit the direction of arrow 1 and then remove it in the direction of arrow 2 Deck P C B Note For disassembly of parts for deck mechanism unit Step 2 Push the lever upward and then open the cassette lid refer to Section 10 16 ass y 10 14 Disassembly of Deck P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 34 250 Step 1 Remove 2 screws Step 2 Desolder wire at deck motor terminals Step 2 Step 3 Remove Deck P C B 10 15 Disassembly of Traverse Unit Follow the Step 1 Step 5 of 10 4 Follow the Step 1 Step 4 of 10 5 Important notes Ensure all the trays are in the STOCK Caution position before proceeding to the disassemble of traverse Do not damage the Play unit For procedu
54. D A CONVERTER D2241 BOACCK000005 DIODE M IC7002 _ BA5948FPE2 _ 4 CH DRIVE M D2583 B0BC9R000008 DIODE M D2603 BOBC9ROO0008 DIODE M TRANSISTORS D2803 BOACCK000005 DIODE M D2811 BOADCJ000020 DIODE M 01101 1 000005 TRANSISTOR 2813 BOACCK000005 DIODE M Q1201 1 000005 TRANSISTOR M D2936 000117 DIODE M Q1302 B1GDCFJJO002 TRANSISTOR M D2937 000117 DIODE M Q1303 BIGBCFGH0001 TRANSISTOR 52938 000117 DIODE 01304 BIGDCFGH0002 TRANSISTOR 52939 000117 DIODE 01309 1 000006 TRANSISTOR 52940 000117 DIODE 01310 1 000006 515 52941 000117 DIODE 01312 1 000011 TRANSISTOR D2946 BOADCJ000020 DIODE M Q1314 BIGDCFGH0002 TRANSISTOR 4000 000114 DIODE M Q1315 B1ACKD000006 TRANSISTOR M D5101 BOBA01100004 DIODE M 01316 25009650 TRANSISTOR 05102 BOBA02600018 DIODE M Q1317 1 000005 TRANSISTOR M D5103 BOBASRO00004 DIODE M Q2142 BIABCF000176 TRANSISTOR M D5104 B0BA01100004 DIODE M Q2242 BIABCF000176 TRANSISTOR M D5105 B0BA02300005 DIODE M Q2311 1 000005 TRANSISTOR M D5107 B0BA01500003 DIODE M Q2317 B1ABCF000176 TRANSISTOR M D5109 B0BA01100004 DIODE M Q2341 BlABGCO00005 TRANSISTOR M D5121 BOEAKP000134 DIODE 02411 1 000005 TRANSISTOR
55. Motor O P Enabling 6 0 Expansion O P Porto 63 0 fExpansionO PPortt_ 64 ____ ______6 Expansion OP ____ FLAG Flag Signal connection Digital Audio Interface O P signal 67 MCLK Micro Computer Command Clock 68 MDATA 1 Miero Computer Data IP p 0 1 Miero Computer Load VP zo 0 Status Signal OP 717 ____ __ Bik Clock 72 ___ _____ 6___ 5 Reset Signal 73 DQSYTXT Pack Signal O P for CD Text data No connection 74 SMCK Micro Computer Clock O P No connection IOCNT Serial data Synchronous O P No connection DU Digital Power Supply Voltage 2 1 5V Beer Digital Power Supply Voltage 1 For I O 78 252 __ 6402 For Digital Circuit 9 NTEST2 1 Test Mode Setting ON H o X2 0 Oscillating Circuit O P ei p1 1 crystal Oscillating Circuit P 82 NTEST 1 Test Mode Setting ON H 85 Data Signal 86 Data Signal OP 3 89 6 10 Data SignalOP6 po 1 7 jDataSigalO P7 93 DRVDD I O Power Supply Voltage DRAM po 27 Data Signal OP 2 po 9 vO Data SignalOP9 99 00 sorck JO Clock Signal OP 22 2 Pin No Mark I O Function 12 Motor Driver 92 Input 2 PC2 Turntable Motor Drive Signal L ON 3 jN Motor Drive 1 Input EN CEN ie Drive Signal L 5
56. c2511 ECEA1HKN2R2B 2 2 50V M c5109 1 101 100 25V 2581 F2A1C101A234 100 16V c5110 1 101 100 25V C2582 F2A1C101A234 100 16V M C5113 ECA1HM330B 33 50V M C2583 F2A1C101A234 100 16V M C5114 ECJ1VB1H104K 0 1 50V M C2584 F1H1H221A748 220 50v M 5115 ECJ1VB1H104K 0 1 50 2585 F1H1H221A748 220 50V M c5121 1 470 47 50V 2588 F1H1C104A041 0 1 16 C5123 F2A1V102A154 1000 35V M C2673 ECJ1VB1H561K 560 50V M C5124 F2A1V102A154 1000 35V M C2674 ECJ1VB1H561K 560P 50V M C5131 ECAOJAK101XB 100 6 3v M C2675 ECJ1VC1H101K 100 50 5132 2 1 1 010056 100 25 2676 F2A1C221A236 220 16V M 5133 ECAOJAK101XB 100 6 3V C2678 F1H1H103A219 0 01 50V M C5151 F1H1H101A230 100 50V M C2701 F1H1H103A219 0 01 50V M C5152 ECJ1VB1H104K 0 1 50V 2702 F2A1C101A234 100 16V 5153 F1H1H101A230 100 50 2703 F1H1H471A219 470 50V 5155 F1H1H102A219 1000 50 2704 F1H1H471A219 470 50V 5157 1 1 1034219 0 01 50 c2705 1 010 1 50V 5159 F1H1H103A219 0 01 50 c2706 1 010 1 50V c5171 ECA1JM102E 1000 63v M c2753 F1H1C104A042 0 1 16V M c5172 ECA1JM102E 1000 63 C2802 F2A1H3R3A234 3 3 50V M C5186 ECJ1VB1H104K 0 1 50V 2803 F1H1A105A025 1 10V 5187 ECJ1VB1H10
57. cover page for area or colour Parts without these indications can be used for all areas Warning This product uses a laser diode Refer to caution statements on Precaution of Laser Diode Capacitor values are in microfarads uF unless specified otherwise P Pico farads pF F Farads Resistance values in ohms unless specified otherwise 1K 1 000 OHM 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 availability is dependent on the type of assembly and in accordance with the laws governing part and product retention After the end of this period the assembly will no longer be available M Indicates in the Remarks columns indicates parts supplied by PAVCSG Reference for book languages are as follows Ar Cz Da Pe Arabic Du Dutch Canadian French En English Czech Fr French Danish Ge German Persian Ur Ukraine Italian Korean Polish Russian Portuguese Sp Spanish Sw Swedish Co Traditional Chinese Cn Simplified Chinese Ref No Part No Part Na
58. deck the tape is caught by the capstan or pinch roller during playback or recording rotate the flywheel F in the direction of the arrow to remove it Flywheel F Step 2 Push the lever upward and open the cassette lid Remove the cassette tape 40 250 Note Follow 10 18 Disassembly of cassette lid Step1 to Step 3 Remove the cassette tape 41 250 11 Service Fixture and Tools Service Tools Extension FFC A Deck P C B Main P C B REEX0485 14 Pins 12 Service Positions Note For description of the disassembly procedures see the Section 10 12 1 Checking and Repairing of Main P C B CN2801 gt lt H 1 Remove Top cabinet CI AES As Remove 3 screws on L R side Remove 5 screws on rear panel Remove top cabinet 04 4 42 250 12 2 Checking and Repairing of Transformer P C B CD Changer Unit 1 Remove Top cabinet N Remove 3 screws on L R side Remove 5 screws on rear panel Remove top cabinet M lt 7 Transformer 12 3
59. frequency response 3 6 dB at DECK OUT NORMAL 35 Hz to 14 kHz S N ratio 50 dB A weighted Wow and flutter 0 18 WRMS Fast forward and rewind time Approx 120 seconds with C 60 cassette tape n DISC SECTION Disc played 8 cm or 12 2007 Matsushita Electric Industrial Co Ltd All copying and rights reserved Unauthorized distribution is a violation of law SA AK250GCP 1 CD Audio CD DA 2 CD R RW CD DA MP3 formatted disc 3 MP3 MPEG 1 Layer 3 MPEG 2 Layer 3 Bit rate MP3 32 kbps to 320 kbps Sampling frequency MP3 32 kHz 44 1 kHz 48 kHz CD DA 44 1 kHz Decoding 16 bit linear Digital filter 8 fs D A converter MASH 1 bit DAC Pick up Wavelength 780 nm Beam Source Semiconductor laser Audio output Disc Number of channels n GENERAL 2 Stereo FL FR Power supply AC 110 to 127 220 to 240 V 50 60Hz Power consumption 95 W Power consumption in standby 0 7 W Approx mode Dimensions W x H x D 250 x 330 x 323 mm Mass 7 1 kg Operating temperature range 5 to 35 Operating humidity range n SYSTEM SC AK250 GCP 5 to 90 RH no condensation Music center SA AK250 Speakers SB AK250 PL For Information on speaker system plesae refer to the original Service Manual Order No 00704055 for SB AK250PL S Notes 1 Specifications are subject to change without notice Mass and dimensions are approximate 2 Total harmonic distortion is measu
60. from pick up 100 uW VDE Laser radiation from pick up unit is safety level but be sure the followings 1 Do not disassemble the optical pick up unit since radiation from exposed laser diode is dangerous 2 Do not adjust the variable resistor on the pick up unit It was already adjusted 3 Do not look at the focus lens using optical instruments 4 Recommend not to look at pick up lens for a long time CAUTION THIS PRODUCT UTILIZES A LASER USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE n Use of Caution Labels CLASS 1M INVISIBLE LASER RADIATION WHEN OPEN CAUTION DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS IE060825 A2 Cass 1M VARNING KSS MosyNuG LASERSTRALNING NAR DENNA DEL AR PPNAD BETRAKTA EJ STRALEN DIREKT GENOM OPTISKT INSTRUMENT USYNLIG LASERSTR LING KLASSE 1M NAR L GET ER BENT FORSIGTIG UNDG AT SE LIGE PA MED OPTISKE INSTRUMENTER VARO AVATTAESSA OLET ALTTIINA LUOKAN 1M NAKYMAT NTA LASERSKTEILYA ALAKATSO OPTISELLA LAITTEELLA SUORAAN SATEESEEN VORSICHT UNSICHTBARE LASERSTRAHLUNG KLASSE 1M WENN ABDECKUNG GE FFNET NICHT DIREKT OPTISCHEN INSTRUMENTEN BETRACHTEN RAYONNEMENT LASER INVISIBLE CLASSE 1M EN CAS D OUVERTURE ATTENTION NE PAS REGARDER DIRECTEMENT A L AIDE D INSTRUMENTS D OPTIQUE sE LSU CK TES UV ERICA
61. ig 2 A 8 s v3 CN2806 w212 gt 209 lt S wase weer QR3105 gt CN2803 30 28 26 24 22 20 18 16 14 12 0 8 6 4 2 W213 19 1C2872 593 W184 29 27 25 23 21 19 17 15 13 4 9 7 5 3 1 m E weer lt gt was lt gt lt lt 21 19 17 15 13 11 9 7 5 3 1 lt gt W215 W460 W115 W627 gt 650 W652 lt Mm 250 1 2 3 4 5 6 7 8 9 10 11 12 13 79 250 20 3 Panel PANEL P C B REPVO131K 56103 OPEN CLOSE o S6102 MULTI CHANGE 2 Q 66105 A E S6104 SINGLE CHANGE 66103 R6104 S6204 CD4 W840 lo 16552 Si Eo L 95209 _W1017 mo lt gt R6206 S6206 W m R6207 lt W803 gt FL6602 C 1 5 10 15 25 30 35 40 44 W873 w914 551 e cne o1 Q ul 3 5 7 9 1113 15 17 19 21 23 25 27 29 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 5 1010 W84 J6631 66553 1006 6552 66551 w871 lt gt
62. kHz UNIT ul Digital frequency counter Fig 13 48 SA AK250GCP 15 Voltage and Waveform Chart Note Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself 15 1 CD Servo P C B N 5 o CD PLAY STANDBY oly w w B a E PLAY 5 1 6 a N a gt BE a NIN lt gt N iv CD PLAY STANDBY 2 4 4 7 1 9 lo aje m o o ah o a Le ro m ra rs n e 5 CD PLAY 3 2 e eo a N a o 11 64 ESETT o STANDBY 5 o j o oo Ta psi sz s 6 es oe or se s w m s e o es e w e ss po a Lele e sa o swor L o A A A A TE TS Tee Cea ie o opo a 8 E TX 15 pee ES 39 SE KS l Gs RT a a a a
63. oH mE c2240 4 in 92441 w277 82241 02983 5 8 snl s 208 cz 1818 3 3 Q2943e JK2803 W525 2353 3 ajo 8 2 po EE 8 IE ale 62120 SIE g JE off 1 2804 5 weoo SI o BB R2141 D2946 8 W257 9 gt j a QE 5 3 2357 2 62676 E wen Bpen 5 SE 9 lt ET gt 207 CN3601 8 w176 Em zr 5704197 gt TO TUNER PACK 1550 R2415 C2412 82706 02325 lt 2326 wao 4 2 Y V R2413 W106 Sl e EJE Sg Far s S Ras ev W gt 1 370 Sn K2302 can _ 215 w191 9 rZ 2 CENE gt 2809 8 W260 rl Rzsonfezsr 678 Lweeo ara 5 wi99 w175 e Emm SS NEE SC WEM 63705 SRA ab 12 8 5 5 3 W519 5
64. pes as emos o 33 o gt te o2 3 fort E35 s Tee fer s T s T ss T T gt CO PLAY T 46 46 s pas ao _ INC Tj er wasa sos vs rs EE EL I R IT A pu A aru Par P pai A A CT 1 or s s o po ps 4125 127 T2 Pas p CD PLAY STANDBY w lo e fe o to o so Ts o ss BEREEL DH NN RANEM SEE a DONNE NUMEN j E p e P En uw 4113 ZW 4 tadas tel Teer To I EES j 0 Teels j Efese o srl To Ls 9 e a _ lu jes o os Le E s a las een s o oe DS ES L E gt zz sza J o iza m mz o ef 4 o __ 122 if 122 22 22 ee fo 0 NAH ER AA EH P L IL e cl a a e
65. 006 ERJ8GEYOROOV JUMPER M R1109 DOGB102JA008 1K 1 16W M W1011 ERJ6GEYOROOV CHIP JUMPER M R1110 D0GB333JA008 33K 1 16W M W7001 DOGDROOJA017 CHIP JUMPER R1201 DOGB330JA008 33 1 16W M 7002 DOGDROOJA017 JUMPER R1202 D0GB152JA008 1 5K 1 16W M 7003 DOGDROOJA017 JUMPER M R1203 D0GB183JA008 18 1 16W M 7004 DOGBROOJA008 JUMPER M R1204 DOGB103JA008 10K 1 16W M W7005 DOGBROOJA008 CHIP JUMPER R1205 D0GB222JA007 2 2K 1 16W M 7006 ERJ8GEYOROOV JUMPER M R1206 DOGB104JA008 100K 1 16W M W7007 ERJ8GEYOROOV CHIP JUMPER M R1207 DOGB102JA008 1 16W M W7008 DOGDROOJA017 CHIP JUMPER 1209 DOGB102JA008 1K 1 16W M w7009 DOGBROOJA008 JUMPER M R1210 D0GB333JA008 33K 1 16W M W7010 DOGBROOJA008 CHIP JUMPER R1302 D0GB471JA007 470 1 16W M w7011 DOGBROOJA008 JUMPER M R1303 DOGB475JA008 4 7 1 16W M 7012 DOGBROOJA008 JUMPER M R1304 D0GB223JA007 22 1 16W M 7013 DOGBROOJA008 JUMPER M R1305 D0GB103JA008 10K 1 16W M W7014 DOGBROOJA008 JUMPER M R1309 DOAF471JA039 470 1 4W M W7015 DOGBROOJA008 JUMPER M R1313 DOGB103JA008 10K 1 16W M W7016 DOGBROOJA008 JUMPER M R1314 DOGB102JA008 1K 1 16W M W7017 DOGBROOJA008 CHIP JUMPER 1318 D0GB103JA008 10K 1 16W M W7018 DOGBROOJA008 JUMPER M R1327 D0GB472JA007 4 7 1 16W M 7019 DO
66. 08 1K 1 16W M R6504 DOGB122JA008 1 2 1 16W M R5202 DOGB104JA007 100 1 16W 26505 DOGB122JA008 1 2 1 16W M R5203 DOGB103JA008 10K 1 16W M R6506 ERJ3GEYJ561V 560 1 16W M R5204 DOGB104JA007 100K 1 16W M R6506 D0GB222JA007 2 2 1 16W M 5205 DOGB104JA007 100 1 16W M R6507 DOGB102JA008 1K 1 16W M 99 SA AK250GCP Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks R6509 DOGB101JA007 100 1 16W M c1304 F2A1H4R7A014 4 7 50V M R6601 DOGB471JA041 470 1 16W M c1305 F2A1C330A234 33 16V M R6602 DOGB471JA041 470 1 16W M c1307 1 221 0 220 10V 6603 DOGB221JA041 220 1 16W M 1308 F2A1C220A234 22 16 26604 DOGB221JA041 220 1 16W 1310 ECA1HAKOR1XB 0 1 50 26605 D0GB823JA007 82 1 16W 1311 1 470 47 16 26631 ERD2FCVG470T 47 1 4W M 1312 F1H1H332A013 3300 50V M R6632 ERD2FCVG470T 47 1 4W M 1314 1 1 222 013 2200 50 26751 D0GB332JA007 3 3K 1 16W M 1315 1 1 222 013 2200 50 6752 DOGB152JA008 1 5 1 16W M c1316 F1H1H102A219 1000 50V M R6753 D0GB332JA007 3 3K 1 16W M C13
67. 1 abnormal to PLAY driving position Press SINGLE CHANGE on main and hence does not drive _ junit for next error playing tray to STOCK position 22 250 Diagnosis Contents Description of error Automatic FL Display Remarks Drive rack gear assembly abnormal The tray drive rack does not move to STOCK position Tray does not move to STOCK position Cam assembly abnormal Drive rack gear assembly abnormal The tray drive rack does not move to PLAY position Tray does not move to PLAY position UD Rack does not move to front direction This lead to UD base not raise to top position After TOP SW is detected UD rack does not move into tray 1 position Cam gear does not move to HOME position under following conditions 1 After tray is load to PLAY position 2 After tray is unload to STOCK position Tray drive assembly abnormal Tray unit does not move from STOCK to PLAY position Tray drive assembly abnormal Tray unit does not move from PLAY to STOCK position 23 For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error
68. 100 50V M C5317 F1K1V105A003 0 1 50V M C2981 F1H1H102A219 1000 50V M C5318 F1K2A1040007 0 1 100V M C2983 F1H1H102A219 1000 50V M C5319 F1H1H153A219 0 015 50V M C2984 ECJ1VC1H101K 100 50V M C5320 1 1 105 003 0 1 50V 2985 F1H1H102A219 1000 50 c5321 F1K2A1040006 0 1 100v C2986 F1H1H102A219 1000 50V M C5322 ECJ1VB1H104K 0 1 50V c3112 ECJ1VB1H221K 220P 50V M C5323 ECJ1VB1H104K 0 1 50V c3113 ECJ1VB1H221K 220P 50V M 5324 ECQV1H474JL3 0 47 50V M C3114 ECJ1VB1H561K 560 50V M C5325 ECJ1VB1H104K 0 1 50V M C3116 ECJ1VB1H561K 560 50V M C5326 ERJ3GEYOROOV 0 1 16W M C3700 DOGBROOJAO08 0 1 16W M C5327 ECQV1H474JL3 0 47 50V M C3701 F1H1A105A025 1 10V M C5328 ECJ1VB1H104K 0 1 50V c3704 F1H1A105A025 1 10V M c5329 ERJ3GEYOROOV 0 1 16W M c3705 DOGBROOJAO08 0 1 16W M C5330 F1H2A221A009 220 100V M 101 SA AK250GCP Ref No Part No Part Name amp Description Remarks Part No Part Name amp Description c5331 F1H2A221A009 220P 100V M ECJ1VB1C823K 0 082 16V c5332 F1H2A221A009 220 100V M F2A1H4R70037 4 7 50 C5333 F1H2A221A009 220 100 F1H1H102A219 1000 50 c53
69. 17 F1H1H102A219 1000 50V M R6754 DOGB152JA008 1 5 1 16W M C1318 ECQV1H473JL3 0 047 50V M R6763 ERJ3GEYOROOV 0 1 16W M C1319 F2A1C101A147 100 16V M R7111 DOGB103JA008 10K 1 16W M C1320 F2A1H1R0A145 1 50V M R7211 ERJ3GEYJ823V 82K 1 16W M C1321 F0A2A472A019 4700 100 27212 ERJ3GEYJ821V 820 1 16W M 1323 ECEA1HKNO10B 1 50V M R7214 ERJ3GEYJ471V 470 1 16W M 1324 1 470 47 16 27217 DOGB102JA008 1K 1 16W M 1326 F2A1C100A147 10 16V M R7218 DOGB102JA008 1K 1 16W M 1371 1 1 103 029 0 01 25 27220 ERJ3GEYJ105V 1 1 16W M c2006 F1H1H102A219 1000 50V M R7221 ERJ3GEYJ101V 100 1 16W M c2112 ECJ1VB1C105K 1 16V M R7253 ERJ3GEYJ100V 10 1 16W M C2113 F1H1H682A219 6800 50V M R7254 DOGB102JA008 1K 1 16W M C2121 F1H1H332A013 3300 50V M R7315 ERJ3GEYJ332V 3 3K 1 16W M C2122 ECJ1VB1C105K 1 16V M R7323 ERJ3GEYJ332V 3 3K 1 16W M C2132 ECJ1VB1C105K 1 16V M R7325 ERJ3GEYJ331V 330 1 16W M C2140 F1H1H102A219 1000 50V M R7327 DOGB102JA008 1K 1 16W M C2142 ECJ1VB1C105K 1 16V M R7328 DOGB103JA008 10K 1 16W M C2149 ECJ1VC1H101K 100 50V M R7329 DOGB102JA008 1K 1 16W M C2152 ECJ1VB1C105K 1 16V M R7330 ERJ3GEYJ562V 5 6 1 16W M C2171 F1H1A334A036 0 33 10V M R7331 D0GB223JA008 22 1 16W M C2172 ECJ1VB1C563K 0 056 16V M R7332 DOGB102JA008 1K 1 16W M C2173 F1H1H103A219 0 01 50V M R7335 ERJ3GEYJ101V 100 1 16
70. 2821 c2953 w577 gt 3 X2801 k R2843 ni 62121 at ES Ea SL 882 2841 BIN Z W649 zie gt le A w675 W356 62853 W679 a 883 W421 R2842 152840 weto 8 lt gt gjg w2ss wsz9 82221 als 62282 lt gt m ale XT lt 077 R263 A 118 w129 8 lt gt wan v 5 2832 A 3 256 W101 82510_ gt E 3 121 S E W450 lt mo By lt lt W406 555 82851 52054 N E W581 2 AOL A y eg w w349 LE 4 A 2201 iS 818 3 8 wast NS E gt A 18 IS W135 W461 8 8 m RU 5 IS 61 R2204 w691 al 62509 4 8 MA Pa 52584 8 RA 2 63729 8 52802 sr S Q SA v lt gt E R ir W258 ra 14001 ITA i SOFTWARE 7 Y 5 el 3 2 4 mes ls A W689 5 0281 E y 02874 4 A th W575 g w188 wise NE JS 2 8 4 lt 8 als 8173303 2 8 E 5 8 E D4000 S E 10 gl w z lt gt 8 8 RZ845 B 4 8 5 E a e 345 LO i s a W160 8 s 8 SP IE 3 8 w161 zl elel 8 slo E NER lt 5 sls Js 8 88 1 4000 8 W253 2 8 s s SS N Y YM 62753 wei 7 wiss RE NE 3 5 w183 w645 5 D2874 2 w308 wies E W347 w362 TAP 8 w108 QR3106 N 8 lt 288_ E E Ea gt 02956 gt 8 E 8 8 HE RS sa Elle g 2808
71. 36 F1H1H102A219 1000 50V M F1H1H102A219 1000 50V c5337 F1H1H102A219 1000 50V M 1 010 1 50V 5344 F1H1H153A219 0 015 50 1 010 1 50 5427 ECQV1H474JL3 0 47 50 ECJ1VB1C104K 0 1 16V 5429 DOGBROOJAO08 0 1 16W M F2A0J221A200 220 6 3V C5434 F1H1H153A219 0 015 50V M F2A0J221A200 220 6 3V C5435 F1H1H153A219 0 015 50V M F1H1C104A008 0 1 16V C5438 ECJ1VB1H153K 0 015 507 M ECJ1VB1C104K 0 1 16V C5439 F1H1H153A219 0 015 50V M F2A1C100A133 10 16V C5701 F2A0J101A181 100 6 3V M F1H1H102A219 1000 50V c5702 ECJ1VB1A474K 0 47 10V M F1H1C104A008 0 1 16V c5703 ECJ1VB1A474K 0 47 10V M ECJ1VB1C153K 0 015 16V c5920 ECA1JM102E 1000 63v M F1H1H471A219 470 50v C5940 ECA1JM102E 1000 63v M ECJ1VB1C104K 0 1 16v C5950 2 1 222 005 2200 25v ECJ1VB1C104K 0 1 16 5951 F1B1H103A007 0 01 50 F1H1A474A025 0 47 10 c5952 2 1 470 204 47 10V M ECEA1AKA2211 220 10V C5953 F1B1H103A007 0 01 50v M F1H1C104A008 0 1 16V C5954 F1B1H103A007 0 01 50v M ECJ1VB1C563K 0 056 16V C5955 ECA1HM220B 22 50V M ECJ1VB1C183K 0 018 16V C5956 F2A1H470A147 47 50V M ECJ1VB1C183K 0 018 16V C5957 F2A1H100A234 10 507 M ECEAOJKA3301 33 6 3V C5958 F1B1H103A007 0 01 50v M ECJ1VB1C104K 0 1 16V C5959 F1B1H103A007 0 01 50v M F2A0J101A198 100 6 3V c5960 2104 0 1 250 ECJ1VB1C104K 0 1 16V c5961 F2A1C221A019 220 16V M ECJ1VB1C10
72. 41 2 2 1 16W M R2112 D0GB562JA007 5 6K 1 16W M RPGV0345 1 PACKING CASE M R2121 D0GB332JA007 3 3K 1 16W M P2 0117 POLYFOAM M R2122 D0GB332JA007 3 3K 1 16W M P3 RPFX0198 MIRAMAT SHEET M R2131 D0GB332JA007 3 3K 1 16W 2132 D0GB332JA007 3 3K 1 16W M ACCESSORIES R2141 D0GB123JA008 12 1 16W M R2142 D0GB272JA008 2 7K 1 16W M 1 N2QAYB000142 REMOTE CONTROL M R2145 DOGB102JA008 1K 1 16W M A1 1 RKK HTR0283H BATTERY COVER M R2146 DOGB102JA008 1K 1 16W M A2 K2CQ2CA00006 AC CORD M R2149 D0GB332JA008 3 3K 1 16W M A3 RQTV0199 1M 0 BOOK En Sp R2151 DOGBROOJAO08 0 1 16W M A4 RSA0007 L1 FM ANTENNA WIRE M R2161 D0GB153JA008 15 1 16W M A5 K2DA42E00001 PLUG ADAPTOR M 82163 D0GB563JA007 56 1 16W 6 N1DAAAA00001 LOOP ANTENNA M R2172 D0GB153JA008 15 1 16W M R2173 DOGB472JA041 4 7K 1 16W RESISTORS R2181 D0GB471JA008 470 1 16W M R2182 DOGBROOJA008 0 1 16W M 97 SA AK250GCP Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks R2183 D0GB222JA008 2 2K 1 16W M R2452 DOGB180JA008 18 1 16W M R2193 D0GB472JA041 4 7K 1 16W M R2453 DOGB
73. 4K 0 1 16V c5962 F2A1C221A019 220 16V M F1H1C2730001 0 027 16V c5963 F2A1H4R7A234 4 7 50V M c5964 F1B1H103A007 0 01 50V M C6481 F2A1H220A216 22 50V M C6491 ECJ1VC1H101K 100 50V C6492 ECJ1VC1H101K 100 50V c6501 F1H1H103A219 0 01 50V 6502 ECJ1VB1H104K 0 1 50V M C6503 ECJ1VB1H473K 0 047 50V C6504 ECJ1VB1H104K 0 1 50V 6505 ECJ1VF1C224Z 0 22 16V M 6506 F1H1H103A219 0 01 50 C6507 F1H1H103A219 0 01 50V M C6508 F2A1E2210045 220 25V M C6509 ECQV1H104JZ3 0 1 50V M C6510 DOGBROOJAO08 0 1 16W M C6521 F1H1H103A219 0 01 50V M C6551 F1H1H103A219 0 01 50v M 6552 F1H1H103A219 0 01 50 6553 F1H1H103A219 0 01 50 C6601 ECJ1VC1H101K 100 50V C6602 F1H1H102A219 1000 50V M C6603 ECJ1VC1H101K 100 50V 6604 ECJ1VC1H101K 100 50 6623 F2A1H220A216 22 50V M 6631 F2A1H220A216 22 50V M 6632 F2A1H220A216 22 50V M 6635 F2A1H2R2A145 2 2 50 6636 ECJ1VC1H101K 100 50 C6751 F1H1H103A219 0 01 50V M C6752 F1H1H103A219 0 01 50V M C6753 F1H1H103A219 0 01 50V M C7102 F1H1A474A025 0 47 10V M C7107 ECJ1VB1H223K 0 022 50V M C7142 ECJ1VB1H332K 3300P 50V M C7154 ECJ1VB1C104K 0 1 16V M C7155 ECJ1VB1C104K 0 1 16V M 7161 ECJ1VB1C104K 0 1 16V M C7164 ECJ2FF1A106Z 10 10V M C7165 ECJ2FF1A106Z 10 10V M C7166 F1H1H103A219
74. 4K 0 1 50 2805 F2A1C471A236 470 16V M c5201 F1H1H471A219 470 50V M C2806 F1H1H100A230 10 50V M C5202 ECJ1VC1H101K 100 50V c2821 ECJ1VC1H101K 100 50V c5203 ECJ1VC1H101K 100P 50V M 2853 F1H1C104A041 0 1 16V M c5204 ECJ1VC1H101K 100 50V 2854 ECA0JAM471XB 470 6 3V M c5205 ECJ1VB1H104K 0 1 50V M 2871 F1H1H331A013 330 50V M c5208 ECA0JM221B 220 6 3V M C2872 F1H1C223A001 0 022 16V M C5210 F1H1H180A230 18 50V M C2874 F1H1H331A013 330 50v M C5230 ECJ1VB1H104K 0 1 50V C2882 F1H1H180A230 18 50V M C5301 ECJ1VB1A474K 0 47 10V M C2883 F1H1H220A230 22 50V M C5302 F1H1H331A013 330 50V M c2901 F1H1C104A041 0 1 16V M c5303 ECJ1VB1A474K 0 47 10V c2930 F1H1H100A230 10 50V c5305 F1H1H331A013 330P 50V M C2940 F1H1C104A041 0 1 16V M C5308 ECJ1VB1H104K 0 1 50V C2941 F2A1H330A215 33 50V M c5309 ECJ1VB1H104K 0 1 50V M C2943 F2A1H2R2A234 2 2 50V M C5310 F1K2A1040006 0 1 100 C2944 ECJ1VC1H101K 100 50V c5311 F1H1H221A748 220P 50V M 2945 F2A1C470A234 47 16 5312 1 1 105 003 0 1 50 C2947 F2A0J101A208 100 6 3V M C5313 F1H1H153A219 0 015 50V M C2948 1 221 220 10V C5314 F1K2A1040006 0 1 100 C2953 ECJ1VB1H561K 560 50V M C5315 F1K1V105A003 0 1 50V M C2954 ECJ1VB1H561K 560P 50V M C5316 F1J1H474A757 0 47 50V M C2956 ECJ1VC1H101K
75. 6207 D0GB272JA007 2 7 1 16W M R5126 DOGB102JA008 1K 1 16W M R6208 DOGB393JA007 39K 1 16W M R5127 DOGB471JA041 470 1 16W M R6209 D0GB472JA008 4 7 1 16W M R5132 DOAF331JA039 330 1 4W M R6302 DOGB102JA008 1K 1 16W M R5133 DOGB103JA008 10 1 16W M R6303 DOGB102JA008 1K 1 16W M R5134 DOGB122JA008 1 2K 1 16W M R6304 DOGB122JA008 1 2K 1 16W M R5135 DOAE2R2JA048 2 2 1 4W M R6305 DOGB182JA008 1 8 1 16W M R5136 DOAE2R2JA048 2 2 1 4W M R6306 D0GB222JA041 2 2 1 16W M R5137 DOAE2R2JA048 2 2 1 4W M R6307 D0GB272JA007 2 7 1 16W M R5138 ERJ8GEYJ100V 10 1 8W M R6308 D0GB472JA008 4 7 1 16W M R5139 ERJ8GEYJ100V 10 1 8W M R6309 DOGB682JA008 6 8 1 16W M R5146 DOGB102JA008 1K 1 16W M R6310 DOGB103JA008 10K 1 16W M R5147 DOAF2R2JA039 2 2 1 4W M R6399 DOGB103JA008 10 1 16W M R5148 DOGB102JA008 1K 1 16W M R6458 D0GB332JA007 3 3K 1 16W M R5149 DOGB102JA008 1K 1 16W M R6481 ERJ3GEYOROOV 0 1 16W M R5150 D0GB224JA007 220 1 16W M R6491 D0GB223JA041 22 1 16W M R5151 D0GB154JA007 150 1 16W M R6492 DOGB123JA008 12K 1 16W M R5152 ERJ3GEYOROOV 0 1 16W M R6493 DOGB103JA008 10 1 16W M R5153 DOGB101JA007 100 1 16W M R6494 DOGB103JA008 10 1 16W M R5154 DOGB101JA007 100 1 16W M R6501 DOGB561JA007 560 1 16W M R5173 DOGB102JA008 1K 1 16W M R6502 DOGB334JA007 330K 1 16W M R5174 ERJ3GEYOROOV 0 1 16W M R6503 D0GB330JA007 33 1 16W M R5201 DOGB102JA0
76. 6W M R2834 DOGB101JA007 100 1 16W M R2345 DOGB152JA008 1 5 1 16W M R2835 DOGB101JA007 100 1 16W M R2346 D0GB332JA007 3 3K 1 16W M R2836 DOGB101JA007 100 1 16W M R2347 DOGBIROJA007 1 1 16W M R2837 DOGB101JA007 100 1 16W M R2352 DOGB180JA008 18 1 16W M R2838 DOGB101JA007 100 1 16W M R2353 DOGBROOJAO08 0 1 16W M R2839 DOGB101JA007 100 1 16W M R2354 DOGB180JA008 18 1 16W M R2840 DOGB101JA007 100 1 16W M R2355 D0GB274JA007 270 1 16W M R2841 DOGB101JA007 100 1 16W M R2356 DOGB184JA007 180 1 16W M R2842 DOGB101JA007 100 1 16W M R2357 DOGB104JA007 100K 1 16W M R2843 DOGB101JA007 100 1 16W M R2401 D0GB153JA007 15 1 16W M R2844 D0GB222JA041 2 2 1 16W M R2411 DOGB471JA008 470 1 16W M R2845 DOGB101JA007 100 1 16W M R2412 D0GB103JA007 10K 1 16W M R2846 DOGB104JA007 100 1 16W M R2413 DOGB104JA007 100K 1 16W M R2848 DOGB103JA008 10 1 16W M 2415 DOGB683JA007 68K 1 16W M R2849 DOGB563JA008 56K 1 16W M 2416 D0GB222JA041 2 2K 1 16W M R2850 DOGB103JA008 10 1 16W M 2417 DOGB103JA007 10 1 16W 2851 D0GB473JA041 47 1 16W M R2418 DOGB104JA007 100 1 16W 2852 D0GB223JA041 22 1 16W M R2430 DOGBROOJAO08 0 1 16W M R2853 DOGB101JA007 100 1 16W M R2431 DOGBROOJAO08 0 1 16W M R2854 DOGB101JA008 100 1 16W M R2434 DOGB103JA008 10K 1 16W M R2871 D0GB223JA041 22 1 16W M R2435 DOGB103JA008 10K 1 16W M R2873 D0GB223JA041 22
77. 8 N c NoConnection PGND1 Ground Connection 1 for Drive ____ 1 Power Supply 1 for Drive Motor Drive 1 reverse action output Motor Drive 1 forward action 22 3 M No connection 2 D_PORTDET1 No connection 3 ____ 0 PORTDET2 ___ ___ connection 4 ____ 05 DAT _________ connection 5 RDSCLK No connection fe PLINK connection o Frequency Hopping External Data Bus Width Select Input Connect to Ground 9 08858 Flash Mode Termina 1 Kein 32 768 kHz Sub 41 Xcout 32 768 kHz Sub Clock 12 Input ACTIVE L 13 Xout I0 MHz Main Clock Ma vs 7 15 Xn 0 He ve 7 Power Supply 5V 17 NM Connect 5V 18 __ Remote Control Input 19 BLKCK CD Block Clock Input Inverted 2o Failure Detect Input 21 po o Serial Output Da a 22 a jp Serial input Data 23 6 Subwoofer Chip Select 24 SW LVL1 No connection 25 No connection 26 _ 0 ASP Data O 27 ASP CLK 0 ASP Clock 28 rcs FL Chip Select 29 ___ PLL DATA j Tuner PLL Da a 30 PLLCLK muner PLL Clock 31 __ USB SDA TXD No connection 32 __ USB SCL RxD __ connection 33 USB RST No connection 34 ___
78. 953 RL5950 H6555 CN5951 6 TO PANEL 05952 T5951 H6555 5951 05966 V E JK5950 2 F1 O O 5 r 75950 s lt gt 2 6555 VOLTAGE CURRENT LIMITING 4 5 REGULATOR AWA SIGNAL LINES MAIN SIGNAL LINE CD SIGNAL LINE 909 CD DA AUDIO VIDEO SIGNAL LINE gt AM SIGNAL LINE o SIGNAL LINE gt VIDOE SIGNAL LINE m FM SIGNAL LINE BAJ AUXIIPOD SIGNAL LINE Indicates the Pin No of Right Channel NOTE Signal Lines are applicable to the Left Channel only SA AK250GCP TRANSFORMER DIAGRAM 61 SA AK250GCP 62 18 Notes Of Schematic Diagram schematic diagrams be modified at any time with the development of new technology Notes S971 S972 S975 S5950 S6101 S6102 S6103 S6104 S6106 S6108 S6201 S6202 S6203 S6204 S6205 S6206 S6207 S6301 S6302 S6303 S6304 S6305 S6306 S6307 S6308 S6309 S7201 VR6491 VR6511 Mode switch Half switch F switch Voltage Selector switch AC In switch Multi Change 4 switch Open Close switch Single Change 4 switch Stop Demo STOP switch Hard Bass switch CD1 1 switch CD2 2 switch 3 switch CD4 4 switch CD5 5 switch FF switch REW REW i lt lt 4 switch Open 4 switch CD switch switch Tuner FM AM sw
79. AW R6753 9 W1001 W 0 66752 1 c6751 L 0 01 0 01 6753 0 01 T W4B gt REXV0093 70 G50 0093 8 MAIN CIRCUIT CN2806 IN SCHEMATIC DIAGRAM 5 HEADPHONE MUSIC PORT SA AK250GCP PANEL CIRCUIT SA AK250GCP 19 4 D Sub Panel Circuit Deck Mechanism Circuit SCHEMATIC DIAGRAM 7 5 SUB PANEL CIRCUIT sB SIGNALLINE DECK MECHANISM CIRCUIT sssemuune 1902 SCHEMATI o PHOTO Tia 2 16500 0971 975 REC INH sm R6302 E b 6002 IN SCHEMATIC VOL LED DIAGRAM 6 S6302 R6303 TAPE 1K KEY1 OUT e o IN 99 E PR FM AM 971 0 CNB13030R2AU 56304 R6305 PHOTO INTERUPTOR 1 8 EXT IN mE 56305 R6306 2 2K 09 0 10K R6492 R6494 12K 56306 56307 2 7 0 56307 R6308 1 R6310 4 7K ok MANUAL EQ 12 01 OOO 56308 6909 meo T lt gt lt 56309 VR6491 EVEKE2F3024B VOLUME JOG Ol SA AK250GCP SUB PANEL DECK MECHANISM CIRCUIT 71 SA AK250GCP 19 5 E Power Circuit SCHEMATIC DIAGRAM 8 3 POWER ciRCUIT SIGNAL L
80. C s 22 1 7001 MN6627954MA Servo Processor Digital Signal Processor Digital filter and D A Converter 86 22 2 1C7002 BA5948FPE2 IC ACH Drive 87 22 3 1 2801 C2CBYY000482 System Microprocessor 87 23 Exploded Views Eee 89 23 1 Cabinet Parts Location 89 23 2 Deck Mechanism Parts Location RAA4403 S 91 23 3 PACKAGING nry szen ch Eon 92 24 Replacement Parts List 93 250 1 Safety Precautions 1 1 General Guidelines 1 When servicing observe the original lead dress If a short circuit is found replace all parts which have been overheated or damaged by the short circuit 2 After servicing ensure that all the protective devices such as insulation barriers and insulation papers shields are properly installed 3 After servicing check for leakage current checks to prevent from being exposed to shock hazards 1 1 1 Leakage Current Cold Check 1 Unplug the AC cord and connect a jumper between the two prongs on the plug 2 Using an ohmmeter measure the resistance value between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads connectors control shafts etc When the exposed metallic part has a return path to the chassis the re
81. CHANGE while PLAY 1 PLAY CHANGE OPEN mode aging 1 cycle DISC SLOAD DISC 3LOAD DISC 4 LOAD DISC 2LOAD WAIT 500ms WAIT 500ms ALL CLOSE COUNTER INCREAMENT WAIT 500 DISC 1 TOC READ DISC 1 PLAY DISC 1 PLAY ALL OPEN es WAIT 500ms DISC 1 PLAY ALL CLOSE DISC 1 STOP I DISC 1 UNLOAD Mode 3 PLAY CHANGE OPEN mode agin AGING MODE 3 b ALL CLOSE DISC 5 TOC READ TOC READ CHANGE while PLAY 5 COUNTER COUNTER COUNTER COUNTER INCREAMENT INCREAMENT INCREAMENT INCREAMENT WAIT 500ms WAIT 500ms WAIT 500ms DISC 4 DISC 2 TOC READ DISC 2 UNLOAD 1 cycle DISC SLOAD ALL OPEN COUNTER INCREAMENT DISC 1LOAD COUNTER 1 WAIT 500ms DISC 5 TOC READ DISC 5 PLAY DISC 5 PLAY ALLOPEN T WAIT 500ms NX TER DISC 5 PLAY ALL CLOSE DISC 55 DISC 5 UNLOAD Pl DISC 3LOAD DISC 4 LOAD DISC 2LOAD COUNTER COUNTER COUNTER INCREAMENT INCREAMENT INCREAMENT WAIT 500ms WAIT 500ms DISC 3 DISC 4 READ TOC READ PLAY CHANGE OPEN mode aging 1 cycle AGING M
82. COIL TO MAIN MCLK CN7002 CN2801 2 2 8 15 MDATA CN7007 7 16 RUP 67 68 537 lt En 38 537 Susp E gt TO MAIN 407002152801 TIMING MICRO COMPUTER ERIS GENERATOR INTERFACE En GEN MCIF D SPINDLE EFM DEMODUALTION A B C D E F SRU SYNC INTERPOLATION E DSV CIRC CDROM ECC INTERFACE DEMECC CIRC RAM SERVO CPU 65 cmos gt RE A n 7007 CN2801 TO MAIN AMPLIFIER 5 18 212 lt 46 REIN gt BUS connor UNIT PRAMVDD33 20 aay 49 CENV SEA PRAMVSS33 CTRCRS REF w em 00 015 83 92 94 99 92 94 1 7002 lt gt X zt BA5948FPE2 a4 RFENV lt gt 0 11 1 7 11 15 4 CH DRIVE X dE Y BAO BA1 16 17 MP3 WMA 4 nwencas VREF OO CONVERTER DECORDER T NRAS SDRCK J 10 100 16 LD3 Y Y L no zyc REG 248 CH3 LEVEL ONVERTER
83. Diagram 53 17 Block Diagram 55 17 1 CD Servo Diagram gt lt 55 17 2 Deck Deck Mechanism Diagram 56 17 3 Diagram Mmmm 57 17 4 PanellDiagrams He 59 17 5 Power Diagramm see 60 17 6 Transformer Diagram 61 18 Notes Of Schematic Diagram 63 19 Schematic Diagram MM 65 19 1 CD Servo Circuit MM 65 19 2 B Main Circuit nte tete tenente 66 19 3 C Panel GIL CUL Sates eect eases saus 70 19 4 D Sub Panel Circuit amp Deck Mechanism Circuit 71 SA AK250GCP 19 5 E Power Circuit 72 19 6 Deck Circuit MM 74 19 7 H Transformer Circuit men 75 20 Printed Circuit Board 20 1 A CD Servo P C B F Deck P C B amp G Deck Mechanism P C B men 78 20 2 Main P C B 79 20 3 C Panel 80 20 4 D Sub Panel P C B 81 20 5 E Power P C B 82 20 6 Transformer P C B Mee 83 21 Illustration of ICs Transistors and Diodes 85 22 Terminal Function of I
84. E c a a E e IE j SA o EJ OJJ s De a ee RZL sme o 3 o Y efe fo T T 1 1 1 T SA AK250GCP MAIN P C B f 50 SA AK250GCP 15 4 Panel P C B Transformer P C B TA AS A K rmm JR O KCI peas pa mes 313 pee papa E E E E EA Ane A a ms as Bele 9 T SA AK250GCP TRANSFORMER P C B NR RSE En Ta 2 o jojo ja Emm doped EI een BE NE 2 1 2 A E E m oma so os fo T 125 1 zs s a pas Pe e A T Ela CA reger or ss sa xs os pai ES e 8 NUR L M _ s s een
85. ERJ6GEYOROOV CHIP JUMPER M 96 250 Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks W913 ERJ6GEYOROOV JUMPER M R972 ERDS2TJ821T 820 1 4W M W914 ERJ6GEYOROOV JUMPER M R973 ERDS2TJ393T 39K 1 4W M 1915 ERJ6GEYOROOV JUMPER M R1061 ERJ3GEYOROOV 0 1 16W M 1924 ERJ6GEYOROOV JUMPER M R1063 ERJ3GEYOROOV 0 1 16W M W925 ERJ6GEYOROOV JUMPER M R1064 ERJ3GEYOROOV 0 1 16W M w926 ERJ6GEYOROOV JUMPER M R1101 DOGB330JA008 33 1 16W M W1000 ERJ8GEYOROOV JUMPER M R1102 DOGB152JA008 1 5 1 16W M w1001 ERJ6GEYOROOV CHIP JUMPER R1103 D0GB183JA008 18 1 16W M W1002 ERJ6GEYOROOV JUMPER M R1104 DOGB103JA008 10K 1 16W M W1003 ERJ8GEYOROOV JUMPER M R1105 D0GB222JA007 2 2 1 16W M W1004 ERJ8GEYOROOV JUMPER M R1106 DOGB104JA008 100K 1 16W M W1005 ERJ3GEYOROOV JUMPER M R1107 DOGB102JA008 1 16W M W1
86. Follow the Step 1 Step 4 of 10 6 Follow the Step 1 Step 3 of 10 7 CAUTION HOT DO NOT TOUCH THE HEAT SINK Step 1 Remove the 4 screws on Power Step 1 OB Step 1 Step 2 j CN5950 ro Step 2 Detach cable at connector CN5950 on Transformer 3 Note Insulate the Power P C B with insulation material to avoid short circuit Replacement of Power Amp IC 5301 10 10 Disassembly of Front Panel Unit Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Step 1 Detach FFC cables at connectors CN2803 CN2806 on Main P C B Step 2 Detach cable at connector CN5951 on Transformer P C B 32 Step 1 Flip the Power P C B over and desolder the pins Step 1 Desolder Q5111 5101 15301 p 95112 Step 2 Remove 1 screw and IC clip IC5301 only Guide point for Assembly Q5101 Q5112 Step 2 Qx5 1C5101 Power P C B Oiso O P Transistor 4 Step 2 Holder u x1 Step 3 Remove IC5301 from heat sink unit Note For disassembly of 5101 Q5101 05102 05111 and Q5112 repeat Step
87. GBROOJA008 JUMPER M R1328 D0GB153JA008 15 1 16W M W7020 DOGBROOJA008 JUMPER M R1329 DOGB472JA007 4 7 1 16W M 7021 DOGBROOJA008 JUMPER M R1330 ERD2FCVJ4R7T 4 7 1 4W M W7022 DOGBROOJA008 JUMPER M R1331 DOGB752JA008 7 5 1 16W M W7023 DOGBROOJA008 CHIP JUMPER 1332 DOGB103JA008 10K 1 16W M 7024 DOGBROOJA008 JUMPER R1333 ERD2FCVJ4R7T 4 7 1 4W M W7025 DOGBROOJA008 CHIP JUMPER R1334 D0GB223JA007 22 1 16W M W7026 DOGBROOJA008 CHIP JUMPER 81335 D0GB152JA008 1 5K 1 16 M W7027 DOGBROOJA008 CHIP JUMPER R1337 D0GB103JA008 10K 1 16W M W7028 DOGBROOJA008 JUMPER M R1338 DOGB472JA007 4 7K 1 16W M W7029 DOGBROOJA008 JUMPER M R1341 D0GB471JA007 470 1 16W M R1342 D0GB473JA007 47 1 16W M WIRES R1343 D0GB332JA008 3 3K 1 16W M R1344 D0GB273JA008 27 1 16W M W1 REXV0092 WIRE M R1345 DOGB102JA008 1K 1 16W M w2 REXV0095 WIRE M R1371 D0GB223JA007 22 1 16W M REXV0094 WIRE M R1374 D0GB471JA007 470 1 16W M WA REXV0093 WIRE M R1401 D0GB123JA008 12 1 16W M R1402 D0GB274JA008 270K 1 16W M WR1903 RWJO102050KR 2P MOTOR WIRE M R1403 D0GB103JA008 10K 1 16W M R1404 D0GB223JA007 22K 1 16W M JW6001 RWJ1810060SS PANEL TO SUB PANEL WIRE M R1405 D0GB103JA008 10K 1 16W M 796002 R2102 D0GB222JA007 2 2K 1 16W M R2104 D0GB273JA007 27K 1 16W M PACKING MATERIALS R2111 D0GB222JA0
88. INE SIGNAL LINE MAIN SIGNAL LINE 05173 05154 Raise wera 2SB0709AHL B 00176 Ed PCONT SWITCH W R5148 1K Ei w751 R5174 gU p 1C5301 ques 84050087 e Biagcegooy7e 05173 712 2 pe 4 0 RL AGND s NDI R5301 C5301 a Ran 5 6K 0 47u is 1 MUTE F pla E w681 8 9 MODE STE R5302 C5303 Y 48V 5 6 0 47u C5318 PCONT 9 1 W el 65314 16 9 R5303 5304 8 57 11 94 UP_GND gt 5 6K 0 47u 4 D 5702 al el St als oT 45 SL 88 6T te 3 818 CST Gua O P_GND ST a o STIS 047 7 5306 AGND UP t I 1 118 W682 0 gt A L_CH 15304 w7se Wo 8 8 2 5 LAGND g 15301 G0B185LA0002 8 55306 CD3 3V 5 i R5231 aj ofa 5230 120 LE Q S SIS E F_HOP1 05324 R g E AL 8 8 8l TT T QR5230 QR5232 F Sra 88 B1GDCFGG0026 E 75233 osa T S 818 QR5232 2 4 QR5231 QR5233 R5234 R5232 0 m B1ABGC000005 Me EJ 27 AGND AGND 5 EXE wi O P_L_GND 81 2
89. ISC 1 UNLOAD WAIT 500ms DISC 4 PLAY ALL CLOSE LT DISC 4 STOP DISC 3 UNLOAD PLAY CHANGE OPEN mode aging 1 cycle CHANGE while PLAY 2 ALL OPEN DISC SLOAD DISC 3LOAD DISC 4LOAD DISC 21040 WAIT S00ms ALL OPEN ALL CLOSE WAIT 500ms COUNTER COUNTER COUNTER COUNTER INCREAMENT INCREAMENT INCREAMENT INCREAMENT To AGING MODE 3 a DISC 1 LOAD ALL CLOSE WAIT 500ms WAIT 500ms WAIT 500ms COUNTER INCREAMENT DISC 2 TOC READ DISC 5 DISC 3 DISC 4 WAIT 500ms TOC READ READ READ DISC 2 PLAY DISC 1 TOC READ DISC 5 DISC 3 DISC 4 DISC 2 PLAY UNLOAD UNLOAD UNLOAD ALL OPEN WAIT 500ms DISC 2 PLAY ALL CLOSE DISC 2 STOP DISC 2 UNLOAD 9 4 Error code Table Display Self Diagnosis Function refer Section 9 2 provides information on any problems occuring for the unit and its respective components by displaying the error codes These error code such as U H and F are stored in memory and held unless it is cleared The error code is automatically display after entering into self diagnostic mode 9 4 1 Error Code Table for Deck Mechanism Error Code Diagnosis Contents Description of error Automatic FL Display Remarks Mode SW abnormal Normal operation during F
90. ITCHES COMPONENT COMBINATIONS 5971 021 000017 SW MODE M 5972 KOJ1BB000021 SW HALF M 25950 ERZV10V511CS 2 M 975 K0J1BB000021 SW RECINH F M Z6481 B3RAD0000146 REMOTE SENSOR M 55950 KOABLB000003 SW VOLTAGE SELECTOR M A 56101 EVQ21405RJ SW AC IN M RELAY 56102 EVQ21405RJ SW MULTI CHANGE M 56103 EVQ21405RJ SW OPEN CLOSE M RL5950 6 1 00015 POWER RELAY A 56104 EVQ21405RJ SW SINGLE CHANGE M 56106 EVQ21405RJ SW STOP DEMO M OSCILLATORS S6108 EVQ21405RJ SW HARD BASS M 56201 EVQ21405RJ SW CD1 M 2801 H0A327200097 CRYSTAL OSCILLATOR M 56202 EVQ21405RJ SW CD2 M 2802 2 100500004 RESONATOR 56203 EVQ21405RJ SW CD3 M X5201 H2A415300001 CRYSTAL OSCILLATOR M 56204 EVQ21405RJ SW CD4 M 5202 H2A375300003 CRYSTAL OSCILLATOR M 56205 EVQ21405RJ SW CD5 M 7201 2 169500005 CRYSTAL OSCILLATOR M 56206 EVQ21405RJ SW FF M 56207 EVQ21405RJ SW REW M DISPLAY TUBE S6301 EVQ21405RJ SW OPEN M 56302 EVQ21405RJ SW CD M FL6602 2 000000172 FL DISPLAY M 56303 EVQ21405RJ SW TAPE M 56304 EVQ21405RJ SW TUNER FM AM M FUSES 56305 EVQ21405RJ SW EXT IN M 56306 EVQ21405RJ SW REC M Fl K5D312BLA015 FUSE M A 56307 EVQ21405RJ SW M EQ M F2 K5D162BLA013 FUSE M A 56308 EVQ21405RJ SW MANUAL EQ M 56309 EVQ21405RJ SW M EQ M FUSE HOLDER 57201 RSH1A048 A SW REST M FC1 EYF52BCY FUSE CLIP M CONNECTORS 2 52 FUSE CLIP M FC3 EYF52BCY F
91. K MECHANISM TAKE NOTE ARE INDICATORS ONLY SA AK250GCP S CABINET DRAWINGS 1 2 3 4 5 6 7 8 9 10 11 12 13 89 362 361 CABINET TRAVERSE DRAWINGS SA AK250GCP S 12 13 11 SA AK250GCP TRAVERSE UNIT E LEA e ds 1 TRANSFORMER MECHANISM gt MAIN P C B CN2808 10 90 SA AK250GCP 23 2 Deck Mechanism Parts Location RAA4403 S 138 DECK MECHANISM P C B SA AK250GCP S DECK MECHANISM DRAWINGS 2 3 4 3 6 74 8 9 10 11 12 13 91 250 23 3 Packaging SB AK250PL u ACCESSORIES BAG A1 REMOTE CONTROL P2 POLYFOAM A P3 SA AK250GCP 92 P2 POLYFOAM B A2 AC CORD BOOK 4 ANTENNA WIRE A5 AC PLUG ADAPTER A6 AM LOOP ANTENNA POLYFOAM A POLYFOAM B SC AK250GCP S PACKAGING DRAWINGS 24 Replacement Parts List Notes Important safety notice Components identified by mark have special characteristics important for safety SA AK250GCP Furthermore special parts which have purposes of fire retardent resistors high quality sound capacitors low noise resistors etc are used When replacing any of these components be sure to use only manufacturer s specified parts shown the parts list parenthesized indications in the Remarks columns specify the areas or colour Refer to the
92. LECTRIC SHOCK AC VOLTAGE LINE PLEASE DO TOUCH THIS P C B T5951 SUB TRANSFORMER Mic MIC VOL HEADPHONE JK6501 CN5951 JK5950 H6555 S 1 VR6511 JK6551 ACIN PANEL P C B N T5950 SOLDER SIDE 220 240V POWER TRANSFORMER 50 60Hz 9 1 CN5950 VOLTAGE SELECTOR 8 TRANSFORMER P C B SOLDER SIDE 6002 26481 SENSOR 2 JW6001 29 30 CN6601 VR6491 JK6751 IMUSIC PORT EJ SUB PANEL P C B SOLDER SIDE SERVO P C B SOLDER SIDE m DECK MECHANISM P C B SOLDER SIDE CN7002 CP1301 TO R P HEAD DECK P C B SOLDER SIDE OPTICAL PICKUP TRAVERSE MOTOR CN7001 M7301 SPINDLE MOTOR M7302 1305 21 1902 9 1 53 SA AK250GCP 54 17 17 1 OPTICAL PICKUP SEMICONDUCTOR LASER CD Servo Diagram GD ED PHOTO DETECTOR Q7601 LASER DRIVE STAT SA AK250GCP 7002 4 2801 19 1 2 12 6 pue FOCUS COIL TRACKING
93. NALOG SWITCH DECK MECHANISM CIRCUIT SX MIS EC 7 SWITCH 0 I 0971 01315 1 971 rts CNB13030R2AU PHOTO INTERUPTOR deny SWITCH CN1305 C 21 p CN1305 a 6 5972 5 HALF CS971 um 5975 RECINH F o o 56 4 TOMAIN 12 TOMAIN 2 2 SA AK250GCP DECK DECK MECHANISM BLOCK DIAGRAM SA AK250GCP 17 3 Main Diagram IC2803 1 00001121 AUDIO SOUND PROCESSOR COAABB000125 OP AMP CNT305 CN2803 b FROM DECK EE gt CN3601 gt gt 5 gt TO TUNER cross wer FROM POWER PACK CN3601 MUTE CF 8 gt gt gt SWITCH CN7002 CN2801 21 2 gt Y FROM GW 52809 CN5102 CD SERVO CN7002 CN2801 N N 02242 4 19 4 m 17 SWITCH K T CN6601 FROM PANEL 20 e gt p 1C3700 000244 CN6601 T gt gt SMT OP AMP JK2803 A AUX A 955 Bae 4 gt 4 27 FROM PANEL 52806 6501 25 4 3 Q2341 Q2441 MUTE MUTE Q2511 QR2501 m gt mg 4 12 FROM DECK gt CN2803 CN1305 gt gt 13 lt ASPDA gt lt ASPCLK gt IDCDET gt 02942 CN2810 FAN MOTOR 1 ON OFF WITCH 1 Tw TOFAN II 02943
94. NE C1105 470P CP1301 ANN R1101 33 R1103 18K C1104 0 027 1001 7326 DECK R P IC R1064 0 WW 16100 21201 C1203 33 R1061 0 a 1 5K C1204 25V 0 027 PE NOR Chr LOGIC R RIPPLE EJECTION RECIPB n ANN Q1101 Q1201 B1ABGC000005 MUTING SWITCH C1110 L 6800 R1205 2 2K 01101 RUT AW R1209 1K ANN 1210 R1206 6800P 100 AWW em R AN 4 1202 ii S 1000 PT C1AA00000612 ANALOG WITCH lt 01302 B1GDCFJJ0002 C1310 50V0 1 2 11302 G0C470JA0052 o R1371 22K Q1317 B1ABGC000005 BEATPROOF LEVEL SWITCH L1301 222700000024 21337 01301 10K BOACCK000005 ANN 1320 H soy 1311 16 47 22 91309 01310 1 000006 BIAS SWITCH Q1312 B1ABCF000011 SWITCH R1401 12K Q1304 B1GDCFGH0002 REC H R1318 10K R1405 10K DECK MUTING CONTROL lt lt Q1303 B1GBCFGH0001 SWITCH
95. ODE 3 CHANGE while PLAY 3 ALL OPEN ALL CLOSE DISC 1 LOAD COUNTER INCREAMENT DISC 1 TOC READ ALL OPEN DISC 5LOAD DISC 3 LOAD DISC 4 LOAD DISC 2 LOAD COUNTER COUNTER COUNTER COUNTER INCREAMENT INCREAMENT INCREAMENT INCREAMENT ALL CLOSE WAIT 500ms WAIT 500ms WAIT 500ms WAIT 500ms DISC 3 READ DISC 5 DISC 4 DISC 2 TOC READ TOC READ TOC READ DISC 3 PLAY DISC 3 PLAY DISC 4 DISC 2 ALL OPEN UNLOAD UNLOAD DISC 3 PLAY ALL CLOSE DISC 35 20 To AGING MODE 3 To AGING MODE 3 b To AGING MODE 3 d 250 Mode 3 PLAY CHANGE OPEN mode aging 1 cycle CHANGE while PLAY 4 WAIT 500ms gt ALL OPEN DISC 51040 DISC 31040 DISC 21040 ALL OPEN ALL CLOSE WAIT 500 COUNTER COUNTER COUNTER COUNTER INCREAMENT INCREAMENT INCREAMENT INCREAMENT To AGING MODE 3 DISC 1 LOAD ALL CLOSE WAIT 500ms WAIT 500ms WAIT 500ms WAIT 500 COUNTER INCREAMENT DISC 4 TOC READ DISC 3 DISC 2 WAIT 500ms READ I READ DISC 4 PLAY Disc DISC 4 PLAY DISC 3 DISC 2 er en D
96. OEAKP000134 Cathode Cathode BOAAFK000004 Cathode ER Ca 00117 A 527 pos BOJAME000025 Anode BOJAMK000015 Anode Cathode A node A DB Ca node 000020 BOJAME000114 BOACCK000005 C A er BOBA6R800008 Zm Cathode Anode BOBA5R000004 lt BOBA02400030 85 SA AK250GCP 22 Terminal Function of IC s 22 1 IC7001 MN6627954MA Servo Processor Digital Signal Processor Digital filter and D A Converter Pin No Function u lam address signal O P 11 2 lag DRAM address signal O P9 3 8 o DRAM address signal O P8 a 7 DRAM address signal 5 jas DRAM address signal O P6 6 0 DRAM address signal O P5 7 pa 0 DRAM address signal OP 4 8 0 Write Enable Signal DRAM 9 INCAS DRAM CAS Control Signal fo NRAS Jo DRAMARS Control Signal 11 Jag o DRAM address Signal 12 pp 7 0 DRAM address Signal O P 2 13 jar address Signal O P 1 14 0 DRAM address Signal 5 0 C DRAM address Signal TO 16 Motor O P 0 Serial Motor 1 Serial No connection 18 ____ 5533 GND DRAM 9 PRAMVDD33 Power Supply Voltage DRAM 20 015 Power Supply Voltage 1 6V 2 ___ jo Spinde 23 np jo Traverse Drive O P te 24
97. Operating Procedures MM 7 1 Main Unit Key Buttons Operations 7 2 Remote Control Key Buttons Operations 13 8 New Features 14 8 1 Using the Music Port HMM 14 9 Self diagnosis and special mode setting 16 9 1 Service Mode Summary Table gt lt lt 16 9 2 Special Mode Table 1 M 16 9 3 Reliability Test Mode CRS1 Mechanism 19 9 4 Error code Table Display 21 10 Assembling and Disassembling 26 10 1 Caution 10 2 Disassembly flow 27 10 3 Main Parts Location 28 Page 10 4 Disassembly of Top Cabinet 29 10 5 Disassembly of CD Changer Unit CRS1 29 10 6 Disassembly of Rear Panel 30 10 7 Disassembly of Main P C B Mee 31 10 8 Disassembly of Transformer P C B 31 10 9 Disassembly of Power P C B 32 10 10 Disassembly of Front Panel Unit 32 10 11 Disassembly for Panel P C B MM 33 10 12 Disassembly of Tact Switch P C B 34 10 13 Disassembly of Deck mechanism 34 10 14 Disassembly
98. PANEL P C B M RTL Q5952 B1GACFJJ0018 TRANSISTOR M REPVO133D POWER P C B M RTL 05953 1 000064 TRANSISTOR REPV0132K TRANSFORMER P C B M RTL Q5954 000007 TRANSISTOR M Q6501 B1AACF000064 TRANSISTOR M INTEGRATED CIRCUITS Q6502 B1AACF000064 TRANSISTOR M Q7601 B1ADCF000001 TRANSISTOR M 971 CNB13030R2AU PHOTO INTERUPTOR M 1000 C1AA00000612 ANALOG SWITCH 082501 BIGDCFJJ0047 CHIP TRANSISTOR IC1001 AN7326K DECK R P M 082502 0016 CHIP TRANSISTOR M 2801 2 000482 MICROPROCESSOR QR3105 KRC101STA CHIP TRANSISTOR 2803 C1BB00001121 AUDIO SOUND PROCESSOR QR3106 KRC101STA CHIP TRANSISTOR M IC2804 COAABBO00125 QR5230 B1GDCFGG0026 TRANSISTOR M 2872 00011 VOLTAGE REGULATOR QR5231 1 000005 CHIP TRANSISTOR M 1C3700 0 000244 SMT AMP M QR5232 _ B1GDCFGGO026 TRANSISTOR M 4000 CODBZGC00067 3 3V REGULATOR QR5233 1 000005 CHIP TRANSISTOR M IC5101 CODAZYY00005 IC REGULATOR M IC5201 COJBAB000011 LOGIC DIODES IC5301 C1BA00000487 IC 2 CH DIGITAL AMP M IC6601 COHBB0000057 IC FL DRIVER M 2971 2 16500 DIODE M 7001 6627954 SERVO PROCESSOR M D1301 000005 DIODE M DIGITAL SIGNAL PROCESSOR D2191 BOACCK000005 DIODE DIGITAL FILTER
99. ROOJAO08 0 1 16W M R2194 DOGB104JA007 100 1 16W 2454 DOGB180JA008 18 1 16W M R2195 DOGB103JA008 10K 1 16W M R2455 DOGB274JA007 270K 1 16W M R2196 DOGB103JA008 10 1 16W M R2456 DOGB184JA007 180K 1 16W M R2202 D0GB222JA007 2 2K 1 16W M R2457 DOGB104JA007 100 1 16W M R2204 D0GB273JA007 27K 1 16W M R2509 DOGB561JA007 560 1 16W M R2211 D0GB222JA041 2 2 1 16W M R2510 DOAF221JA039 220 1 4W M R2212 D0GB562JA007 5 6 1 16W M R2511 DOGB561JA007 560 1 16W M R2221 D0GB332JA007 3 3K 1 16W M R2512 DOGB104JA007 100 1 16W M R2222 D0GB332JA007 3 3K 1 16W M R2584 D0GB334JA007 330 1 16W M R2231 D0GB332JA007 3 3K 1 16W M R2585 D0GB334JA007 330 1 16W M R2232 D0GB332JA007 3 3K 1 16W M R2586 DOGB122JA008 1 2 1 16W M R2241 DOGB123JA008 12 1 16W M R2587 DOGB122JA008 1 2 1 16W M R2242 D0GB272JA008 2 7 1 16W M R2672 DOGB103JA008 10 1 16W M R2245 DOGB102JA008 1K 1 16W M R2673 DOGB682JA008 6 8K 1 16W M R2246 DOGB102JA008 1K 1 16W M R2674 D0GB473JA041 47 1 16W M R2247 DOGB104JA007 100 1 16W 2676 DOGBROOJAO08 0 1 16W M R2248 DOGB682JA008 6 8K 1 16W M R2677 ERJ6GEYJ271V 270 1 10W M R2249 D0GB332JA007 3 3K 1 16W M R2701 DOGB102JA008 1K 1 16W M R2251 DOGBROOJAO08 0 1 16W M R2702 DOGB102JA008 1K 1 16W M R2271 DOGB153JA008 15 1 16W M R2703 D0GB224JA007 220 1 16W M R2273 D0GB472JA041 4 7 1 16W M R2704 D0GB224JA007 220
100. T TOUCH THIS U p 22D presio AN O FP5950 4 a SA AK250GCP TRANSFORMER P C B 1 2 3 4 5 6 7 8 9 10 11 12 13 83 SA AK250GCP 84 21 Illustration of ICs Transistors Diodes SA AK250GCP iS Cathode Ca pes lt A A Cathode 000125 CODBZGC00067 C1AA00000612 00011 1 00001121 100P y MN6627954MA 100P COHBB0000057 44 5 2 000482 100P SR 1 O AN7326K 26 BA5948FPE2 CNB13030R2AU C1BA00000487 24 COABBB000244 CODAZYY00005 3 1 0 1 2 3 gn OKI 2 4 25 0709 B1ADCF000001 2SD09650RA B1AAGC000006 B1AAKD000014 B1ABGC000005 B1GDCFJJ0047 B1ACKD000006 B1GBCFJJ0051 B1ADCF000063 B1ABCF000176 A B1GBCFGN0016 B1GDCFNA0001 2 B1GDCFGG0026 B SJ BE E Ec B B1BACG000023 BIAACF000064 25 0621 B1GDCFGH0002 B1ABCF000011 B1GACFJJ0018 B1BCCG000002 2 KRC101STA B1GBCFGH0001 B1GDCFJJ0002 B B E BOBA01100004 BOBA02600018 BOBC5R600003 BOJAMEO001 19 B1DEGM000026 B0BA01500003 0 01900005 02300005 Ca Anode Ca 0 Cathode a Cathode Cathode A A A SS RR Cathode M Anode ANGOR Anode i BOBC9R000008 B3AAA0000583 MAZ80560ML u MA2C16500E B
101. USE CLIP M CN1305 K1MN21B00010 21P CONNECTOR M FC4 EYF52BCY FUSE CLIP M CN2801 K1MN22AA0004 22P CONNECTOR M CN2803 K1MN21A00005 21P CONNECTOR M FUSE PROTECTORS CN2805 K1MN14A00049 15P CONNECTOR M CN2806 K1MN30AA0004 30P CONNECTOR M FP5920 K5G702A00009 FUSE PROTECTOR M A CN2808 K1KB12B00037 12P CONNECTOR M FP5940 K5G702Z00004 FUSE PROTECTOR M A CN2809 K1KB12B00037 12P CONNECTOR M FP5950 K5G402A00025 FUSE PROTECTOR M CN2810 K1KA02AA0186 2P CONNECTOR M 95 SA AK250GCP Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks HOLDERS w629 ERJ3GEYOROOV CHIP JUMPER M W630 ERJ6GEYOROOV CHIP JUMPER M 5104 1 09000001 9P WIRE HOLDER M w631 ERJ6GEYOROOV JUMPER M H6555 K1YZ09000002 CABLE HOLDER M w632 ERJ3GEYOROOV CHIP JUMPER M W633 ERJ3GEYOROOV CHIP JUMPER M JACKS W634 ERJ8GEYOROOV CHIP JUMPER M W635 ERJ3GEYOROOV CHIP JUMPER M JK2803 K2HA204B0153 JK AUX M W636 ERJ3GEYOROOV JUMPER M JK5103 K4AC04B00014 JK SPEAKER M W637 ERJ3GEYOROOV CHIP JUMPER M JK5950 K2AA2B000011 JK AC INLET M A W638 ERJ6GEYOROOV CHIP JUMPER M JK6501 K2HC103A0024 JK MIC M
102. W M C2174 F1H1H103A219 0 01 50V M R7336 ERJ3GEYJ100V 10 1 16W M C2175 F1H1H332A013 3300 50V M R7339 DOGB102JA008 1K 1 16W M C2181 F1H1A105A025 1 10V M R7349 ERJ3GEYJ183V 18K 1 16W M C2182 F1H1A334A036 0 33 10V M R7601 ERJ3GEYJAR7V 4 7 1 16W M C2183 ECJ1VB1C224K 0 22 16V M R7650 ERJ3GEYJ5R6V 5 6 1 16W M C2191 F2A1H3R3A234 3 3 50V M C2192 F1H1C104A041 0 1 16V M K3300 DOGBROOJA008 JUMPER M C2193 F1H1A105A025 1 10V M K3703 DOGBROOJA008 CHIP JUMPER M C2194 ECJ1VB1A124K 0 12 10V M K3705 DOGBROOJA008 JUMPER M C2195 F1H1A474A025 0 47 10V M C2212 ECJ1VB1C105K 1 16V M CAPACITORS C2213 F1H1H682A219 6800 50V M C2221 F1H1H332A013 3300 50V M C1101 F2A1H1R0A145 1 50V c2222 ECJ1VB1C105K 1 16V M 1102 F1H1H471A219 470 50 c2232 ECJ1VB1C105K 1 16V M c1103 F2A1C101A147 100 16V M c2240 F1H1H102A219 1000 50V M c1104 1 1 273 002 0 027 25V M c2242 ECJ1VB1C105K 1 16V M c1105 F1H1H471A219 470 50V M C2245 F2A1C100A234 10 16V M C1106 F2A1H2R2A145 2 2 50V M C2249 ECJ1VC1H101K 100 50V M C1107 F1H1H152A219 1500 50v M C2252 ECJ1VB1C105K 1 16V M C1108 F2A1C100A147 10 16V M C2263 F2A1H1R0A234 1 50V M C1109 F2A1H3R3A145 3 3 50V M C2271 F1H1A334A036 0 33 10V M C1110 ECJ1VB1H682K 6800 50V M c2272 ECJ1VB1C563K 0 056 16V M 1121 F1H1H102A219 1000 50 C2273 F1H1H103A219 0 01 50v M C1122 F1H1E103A029 0 01
103. W595 ppp 12 3 3V 0 11 vcc 10 XM5 3V W668 MOT_12V W576an 0 W STANDBY W 9 MOT_12V TO 0 8 STANDBY IDCDET IDCDET POWER CD 33V cater 7 CIRCUIT se Y 6133V CN5103 gt PCONT 5 5v IN SCHEMATIC z z DIAGRAM 9 C2753 0414 3 UP_GND PGND H 2 FL GND 1 P GND cs CN2808 IRESET en CNVSS W605 yy 0 1 RESET AW 2 CNVSS vec GE R2881 220 02803 mm X2802 000005 USB 4 BUSY SOFTWARE 28 H2B100500004 E 5 WRITING ze A 2854 USB_RST 6 GD DAR 470 USB_SCL UD R2883 C2883 ES A GNDT UsB SDA 330 22 2 w 8 xD C15 kJ E VREF R28822 at AR 4 10M 8 2802 X Tcass2 8 ZK 3 3 CH N X2801 p Q2803 H0A327200097 W604 0 B1GBCFJJ0051 a W257 amp RESET MICRO P SWITCH 2 BOJAMK000015 lt l ED A A 9 3 sz Ble 8 zel e3 928 8 816 24554 515 9 gn W611 2655 51021521 18 me ESEE 2 oes x 58 0102936 5 lt gt lt lt lt 5 a vare gt S g o 82509 5 Q g ale gt gt X 44 5 a gt 5 5 Y 02941 8 gs 5 02937 02941 302940 15 8 000117 a lt 5 h W 02939 ge f 8 4 5 02938 y 3 NW i o or 02937 1411 Y o Q2936 8 27 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 Sal 1 2 3 4 5 6 8 J10 11 12 13 14 15 Soc gt
104. YOROOV JUMPER M w609 ERJ3GEYOROOV JUMPER M W684 ERJ3GEYOROOV CHIP JUMPER M W610 ERJ3GEYOROOV CHIP JUMPER M W690 DOGDROOJA017 CHIP JUMPER M W611 ERJ3GEYOROOV CHIP JUMPER M 1690 ERJ3GEYOROOV CHIP JUMPER M 612 ERJ6GEYOROOV JUMPER M W706 ERJ6GEYOROOV CHIP JUMPER M w613 ERJ3GEYOROOV JUMPER M W712 ERJ3GEYOROOV JUMPER M W614 ERJ6GEYOROOV JUMPER M W744 DOGBROOJA008 JUMPER M W615 ERJ3GEYOROOV JUMPER M W748 ERJ6GEYOROOV CHIP JUMPER M W616 ERJ3GEYOROOV CHIP JUMPER M W750 DOGBROOJA008 JUMPER M W617 ERJ3GEYOROOV CHIP JUMPER M 751 ERJ8GEYOROOV CHIP JUMPER M w618 ERJ3GEYOROOV JUMPER M W756 DOGDROOJA017 JUMPER M w619 ERJ3GEYOROOV JUMPER M W757 DOGDROOJA017 JUMPER M w620 ERJ3GEYOROOV JUMPER M w903 ERJ6GEYOROOV CHIP JUMPER M w621 ERJ3GEYOROOV JUMPER M W904 ERJ6GEYOROOV CHIP JUMPER M W622 ERJ3GEYOROOV JUMPER M w905 ERJ6GEYOROOV CHIP JUMPER M W623 ERJ3GEYOROOV CHIP JUMPER M W906 ERJ6GEYOROOV CHIP JUMPER M W624 ERJ3GEYOROOV JUMPER M w907 ERJ6GEYOROOV JUMPER M W625 ERJ3GEYOROOV JUMPER M w908 ERJ6GEYOROOV CHIP JUMPER M W626 ERJ3GEYOROOV JUMPER M w909 ERJ6GEYOROOV CHIP JUMPER M W627 ERJ3GEYOROOV JUMPER M W910 ERJ6GEYOROOV CHIP JUMPER M W628 ERJ6GEYOROOV JUMPER M W911
105. a 0 hd D E F G 1 4 2 4 34144 SA AK250GCP MAIN CIRCUIT SA AK250GCP SCHEMATIC DIAGRAM 4 MAIN CIRCUIT SIGNAL LINE gt CD SIGNAL LINE D SIGNAL LINE ZZ MAIN SIGNAL LINE AUX SIGNAL LINE mil gt x lt s e o x z E wm 0006 DOCS 88 3 alala sla eue 5 pa 0 ulib sQ x E gl Z 5 W658 44 0 CE zu gt lt wj a uo 0 02811 AW AW BEN lt ale gt BOADCJ000020 x alol g E f 2 5 28 e 47k 2 5 21 TO MAIN SECTION 1 4 A 5 3300 3 SE 1 2826 44 47k e W684 J wess sl W 1 rF BOAGGK000005 T 15V cn NTS 4 R2827 47 4 P TO MAIN SECTION 4 4 R2286 012 o PLL_CLK 3 AW xND R2828 47k a IDCDET E 1 W RATE DO do 8 ag 1 2871 TO TUNER PACK Sy Ww W zz IC2871 5 a 4 J3CCBB000009 veci RE 3 2 5 Q R3303 E EPROM IC g 88 88 NOT SUPPLIED x a GE m VSM 9 2678 25 3940 0 2872 DETIRDS 10 001 SWITCH 22613 A 1 JE 0 022u i 3601 SES a Mo e 8 oS ez zt gt 03601
106. a a fo fs as fas s _ 4 3s Ff rar so 297 85 292 Tes 22 _ soo 54 ves Tee Te E T SA AK250GCP POWER P C B 51 250 15 6 Chart WF 20801 2 PLAY WF C2804 1 PLAY WF CN2806 27 PLAY WF SENE Aue un Ri 176mVp p 5msec div 66mVp p 200usec div 22mVp p 100usec div 2 56Vp p 10msec div WF 5301 10 14 PLAY WF 1C5301 10 14 PLAY 61Vp p 1usec div 75 9Vp p 5msec div 75 9Vp p 5msec div WF 1 2809 13 PLAY WF 1C2809 14 PLAY 61Vp p Tusec div 233mVp p 100nsec div 293mVp p 100nsec div 52 SA AK250GCP 16 Wiring Connection Diagram AUX JK2803 21 2810 CN3601 10 TO TUNER PACK ICN2809 POWER P C B SOLDER SIDE El MAIN P C B SOLDER SIDE RIGHT SPEAKER LEFT SPEAKER TO CRS1 ICN2808 CN2805 CN5103 CN2806 CN5102 CN2803 20 21 CAUTION RISK OF E
107. ading should be between 1 and 5 2 When the exposed metal does not have a return path to the chassis the reading must be 1 1 2 Leakage Current Hot Check See Figure 1 1 Plug the AC cord directly into the AC outlet Do not use an isolation transformer for this check 2 Connect a 1 5 10 watts resistor in parallel with a 0 15uF capacitor between each exposed metallic part on the set and good earth ground such as a water pipe as shown in Figure 1 3 Use an AC voltmeter with 1000 ohms volt or more sensitivity to measure the potential across the resistor 4 Check each exposed metallic part and measure the voltage at each point 5 Reverse the AC plug in the AC outlet and repeat each of the above measurements 6 The potential at any point should not exceed 0 75 volts RMS A leakage current tester Simpson Model 229 or equivalent may be used to make the hot checks leakage current must not exceed 1 2 milliamp Should the measurement is out of the limits specified there is a possibility of a shock hazard and the equipment should be repaired and rechecked before it is returned to the customer Hot Check Circuit AC VOLTMETER EJ 0 15uF TO Po APPLIANCES COLD EXPOSED WATER PIPE METAL PARTS 15000 10W EARTH GROUND Fig 1 1 2 Before Use Be sure to disconnect the mains cord before adjusting the voltage selector Use a minus screwdriver to set the voltage selector on the rear panel to the vo
108. all it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam aluminium foil or comparable conductive material 7 Immediately before removing the protective material from the leads of a replacement ES device touch the protective material to the chassis or circuit assembly into which the device will be installed 250 Caution Be sure no power is applied to the chassis or circuit and observe all other safety precautions 8 Minimize body motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity ESD sufficient to damage an ES device 250 3 Handling Precautions Traverse Unit The laser diode in the traverse unit with optical pickup may break down due to potential difference caused by the static electricity of clothes or our human body So be careful of electrostatic breakdown during repair of the traverse unit with optical pickup Way of handling the traverse unit with optical pickup 1 Do not subject the traverse unit with optical pickup to static electricity as it is extremely sensitive to electrical shock 2 To prevent the breakdown of the laser diode an antistatic shorting pin is inserted into the flexible board FFC board 3 Do not to apply excessive stress to the flexible boa
109. at FF mode ON approx 50 Repeat the operation gt FWD PLAY Note Other operation may start if a timing of supplying the plunger power is missed 13 1 1 Connection Status between Mechanism and Power Supply Motor Plunger Plunger Motor DC 5V DC 9V The lead at the positive side is cut off and is O manually turned on and off chanism Unit Fig 5 13 1 2 Operative Parts of Deck Mechanism Unit EJECT lever fitted with rubber band Plunger Rib operation 13 2 Operation Check without Cassette Tape 1 Pull up the EJECT lever using a rubber band Fig 6 2 Supply DC5V to MOTOR gt MOTOR rotates 3 Lift up the mechanism unit s plunger rib with the tip of a negative screwdriver and operate the unit in the same timing as supplying the power Fig 7 45 250 Plunger Rib 46 250 14 Measurement And Adjustments 14 1 Cassette Deck Section 14 1 1 Requirements Test tape QZZCFM QZZCWAT Normal blank cassette tape QZZCRA Digital frequency counter Oscilloscope Electrical voltmeter Headphone jack output jig Fig 8 14 1 2 Setting of Unit VOLUME 14 1 3 Preparations 1 Apply under 10 Assembling and disassembling 2 Remove 4 screws from the mechanism unit to disassemble under 10 13 Disassembly of Deck Mechanism Unit 3 Connect the headphone jack output jig Fig 8 to headphone jack Oscilloscope
110. d solder it takes the longer time to melt the lead free solder Use the soldering iron more than 70W equipped with the temperature control after setting the temperature at 350 30 degrees C 662 86 F Recommended Lead Free Solder Service Parts Route following 3 types of lead free solder are available through the service parts route RFKZ03D01K 0 3mm 100g Reel RFKZO6D01K 0 6mm 100g Reel RFKZ10D01K 1 0mm 100g Reel Note Ingredient Tin Sn 96 5 Silver Ag 3 0 Copper Cu 0 5 Cobalt Co Germanium Ge 0 1 to 0 3 10 250 6 Accessories Note to Replacement Parts List Section 24 for part number Power Plug Adapter 250 7 Operating Procedures 7 1 Remote control signal sensor Disc tray open close Multiple discs change Single disc change AC supply indicator AC IN This indicator lights when the unit is connected to the AC power supply Standby on switch POWER Press to switch the unit from on to standby mode or vice versa In standby mode the unit is still consuming a small amount of power Music port jack EXT IN selection Tuner FM AM selection Volume control Record Q HARD BASS selection Manual EQ and LED flashing selection Main Unit Key Buttons Operations 12 Display panel Disc trays Disc direct pla
111. e For system with EEPROM as memory backup memory space in EEPROM is neccesary 2 To display all error code memorized In CRS1 Self Diagnostic mode press SINGLE CHANGE to display subsequence error code It shall repeat after reaching error no 5 e g 1____1 SINGLE CHANGE 2 ____1 1 P gt SINGLE CHANGE 3_ ___HOME gt SINGLE CHANGE A ____ L O A D SINGLE CHANGE Pasean U D D gt SINGLE CHANGE 3 To clear the error code memory In CRS1 Self Diagnostic mode long press SINGLE CHANGE key 2s or more 25 250 10 Assembling and Disassembling 10 1 Caution Special Note This model uses a new CD changer unit CRS1 In this following section does not contain the necessary disassembly amp assembly information for the CD changer unit CRS1 except the disasembly 4 assembly of traverse unit Kindly refer to the original service manual for the CD changer unit Order No MD0509368C0 SERVICER Some chassis components may have sharp edges Be careful when disassembling and servicing 1 This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components 2 For reassembly after operation checks or replacement reverse the respective procedures Special reassembly procedures are described only when required 3 Select items from the following index when checks or replacement are required 4 Refer to the Par
112. e L R2283 R2194 1 a0 651 w gt x zz 237 C2282 We67 100k M QR3105 C A 033 0 518 ge gg 62283 5 4 24182 ae sis ele 1k R2510 3 BE AN MOTOR AZ y 0 047u a Wes MO GND 3 tx Rise REC_R WET BOAGGK000005 DR TE 0251 MS 02341 02441 DE 2024 22K S l 0 A amp B1IGDCFJJ0047 000005 MOTOR 9V 5 85 C2805 2509 SS MUTING CONTROL 0 HEADPHONE MUTING DECK_AD1 6 W 2 REF_L 560 A 8v 7 Sy L 1 18 1 8 W T 588 ivi R2347 02341 R2341 R2352 FB L 2 8 R2511 1 PB L 8 PER aaro Sos 102872 ES 60 R2512 E TO PB R o PBR Rey an ize 100k DECK CIRCUIT ola y 4 weso 5 T CN1305 GND 11 DECK ADN oo gt 33k R2344 R2343 R2354 R2353 IN SCHEMATIC REC IN L 12 cum DECK AD 0 ne loss 12 0 E 18 0 DIAGRAM 10 REC IN lt WSZ REC_IN_L A SND2 1 wn REC_H 14 lt REC 0 E QR2501 19000 Dwr je E B1GDCFJJ0047 GR2501 gt ci 3 id R DVREF 17 FE SWITCH a coje 1 RECI59 1 0 5v 20 ANVERS AW EEE x QR2502 W687 mun nds W 3 PHOTO B1GBCFGN0016 QR2502 0 9 08 mw F CN2803 SWITCH 7 8 IC2872 8 s 00011 lt VOLTAGE REGULATOR N 599 ul a 8 8 alla 2 3 E BEI z 2 F A_GND1 G TO MAIN SECTION 3 4 H 1 4 2 4 3 4 4 4 SA
113. gag AUX SIGNAL LINE p gt MIC SIGNAL LINE w581 R2173 R2161 0 4 7K M C2263 le 38 1 2804 50Viu 2181 R2301 C2705 000125 lt SeT4 T 1 a 3 15K Q2311 Q2411 tu OP AMP B1ABGC000005 sb 8 MUTING SWITCH gt 3 Alo gt Ci B 5 2 22 E SE 8 85 02302 MIX us g 2 C2311 R2311 gt H C2112 159 IC2803 R2312 R2355C2342 czztz Hu t EE 69 C1BB00001121 10k 270K tu R2813 gt EIE 1 5 AUDIO SOUND PROCESSOR TO MAIN SECTION 2 4 y 02222 jiu 42 69 t pl SG In L3 2 IN R1 Dara GB Ree RY 02152 Hu GE m ra FIN SIOK ROUTE 0224 R2401 4 E R2413 EZ T INA 2803 06 201 0 220 W 4 con 820556244 gt C2252 plu 32 MID R2 T OUTR 6862402 0220 45 1 c xw 5 h 3 GND Boj mer BASS R2 62 cm 2411 117111 4 EN 2142 ow BY IN R5 14 REF IN beine BASS RI S 470 gt 2242 1 5 q A 9 6 4 G gt 0 35 59 lt gt ZE 5 T E Q2142 Q2242 BE B1ABCF000176 GO C2195 AGC CONTROL SWITCH S Hh 9 5 R2195 047 QR3105 QR3106 R2102 SRN E 8 KRC101STA TETS zelda Y 5 5 SE gt E WITCH mW 82204 emi 15 2 STS k 82 5 27 5 8 1k wa gt 525 D W PMW 0 uns B Sg a 083106 SZo 2 A 912021944007 88 597 2 t k
114. itch Ext In switch Rec switch M EQ switch Manual EQ switch M EQ switch Rest switch VR Volume jog VR Mic jog Importance safety notice Components identified by A mark have special characteristics important for safety Furthermore special parts which have purposes of fire retardant resistors high quality sound capacitors low noise resistors etc are used When replacing any of components be sure to use only manufacturer s specified parts shown in the parts list Resistor Unit of resistance is OHM Q K 1 000 000 Capacitor Unit of resistance is unless otherwise noted F Farad pF Pico Farad Coil Unit of inductance is H unless otherwise noted Voltage and Signal lines gt gt B Signal line Signal line CD DA Signal CD Signal line 63 Main Signal line FM AM Signal line Tape Record Signal line Tape Playback Signal line Aux Signal line MIC Signal line SA AK250GCP SA AK250GCP 64 SA AK250GCP 19 Schematic Diagram 19 1 A CD Servo Circuit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SCHEMATIC DIAGRAM 1 OPTICAL PICKUP CIRCUIT CD SERVO CIRCUIT BSIGNALLINE p CD DASIGNALLINE C gt CD SIGNAL LINE FOR REFERENCE ONLY woz Wo wroz Wo wros Wo wish C7601 7 7 2 6 3433 T 0 1 Q7601 w7o2s B1ADCF000001 O LASER POWER DRIVE 14
115. lock Step 6 Release the catches to Note remove the head connector Support the Deck Mechanism PCB by hand to remove the Deck PCB Step 4 Remove the Deck PCB Lee keeping track of ASEA connectors Deck PCB Step 3 Remove 2 solders of the motor terminal 37 250 10 16 2 Replacement of Motor Capstan Belt Capstan and Winding Belt Step 3 be SR Remove the sub chassis The positions of boss and gt UT a marking hole should be horizontal to each other HJ Boss Marking Head Connector Release the catches to remove the head connector Install the winding belt temporarily as shown Step 3 in the figure above Attach the flywheel F Flywheel Step 4 Catch the winding belt on the flywheel F Winding Belt Step 4 Remove the capstan belt Tweezers Winding Arm Step 5 Install the winding lever and spring while the winding arm is pressed to the arrow direction Be sure that the winding lever is firmly inserted and the catch is hooked n Step 6 Note Winding Belt Release the catch The winding lever should be on the tape facing positioned as shown in the side to remove the right figure Step 7 winding lever Remove the flywheel F and lied 38 Step 6 Install the capstan belt temporarily as shown in the figure below Capstan Belt Side View Note Keep the belt away from g
116. ltage setting for the area in which the unit will be used If the power supply in your area is 110V 127V set to the 127V position Note that this unit will be seriously damaged if this setting is not made correctly There is no voltage selector for some countries the correct voltage already set 1 3 Before repair and adjustment Disconnect AC power discharge power capacitors C5101 C5104 C5171 C5172 5920 C5940 and C5950 through 100 5W resistor to ground DO NOT SHORT CIRCUIT DIRECTLY with a screwdriver blade for instance as this may destroy solid state devices After repairs are completed restore power gradually using a variac to avoid overcurrent Current consumption at AC 110 127V 50 Hz in NO SIGNAL mode at volume min at CD mode should be 500mA Current consumption at AC 220 240 60 Hz in NO SIGNAL mode at volume min at CD mode should be 350mA 1 4 Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed 250 No sound is heard when the power is turned on Sound stops during a performance The function of this circuitry is to prevent circuitry damage if for example the positive and negative speaker 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
117. me amp Description Remarks Part No Part Name amp Description Remarks CABINET AND CHASSIS XTV3 10GFJ M SCREW M XTW3 12TFJ SCREW M 1 J3CCBB000009 TUNER PACK M XTWS3 6TFJ SCREW M 2 REEV0139 21P FFC DECK MAIN M REXX0325 9P FLAT WIRE M 3 0140 22 CD MAIN REXX0324 1 9P FLAT WIRE M 5 0190 RMNV0079 FL HOLDER M 6 REEX0747 14P FFC WIRE M XTW3 10TFC SCREW M 7 RGKV0158 K CD LID M 9 RGLV0069 Q VOLUME KNOB LIGHT M CASSETTE DECK 10 RGLV0070 Q POWER BUTTON LIGHT M 11 RGPV0105 S FRONT PANEL M RED0067 2 P B HEAD 12 RGRV0052M A REAR PANEL M RDG0300 REEL BASE GEAR 14 RGUV0163 K SELECTOR BUTTON M RDG0301 WINDING RELAY GEAR 15 RGUV0164 S CD CHANGER POWER BTN M RDK0026 4 MAIN GEAR 16 RGUV0165 S 5CD CHANGE BUTTON M RDV0033 4 WINDING BELT 17 RGUV0166 K FUNCTION BUTTON L M RDV0064 1 CAPSTAN BELT 18 RGUV0167 K FUNCTION BUTTON R M RMB0312 TRIGGER LEVER SPRING 19 RGUV0177 1S 7 CONTROL BUTTON M RMB0400 REEL SPRING 20 RGWX0056 3S MIC VOLUME KNOB M RMB0403 HEAD PANEL SPRING 21 RGWX0072 1S VOLUMR KNOB M RMB0404 BRAKE ROD SPRING 22 RHD26046 L SCREW M RMB0406 5 FR LEVER SPRING 23 RMC0158 S2 TRANSISTOR HOLDER M RMB0408 THRUST SPRING 24 RHD30007 1SJ SCREW M RMLO370 4 TRIGGER LEVER 25 RHD30111 3 SCREW M RMLO371 FR LEVER 26 RHD30119 S SCREW M RMLO372 2 WINDING LEVER 27 RKA0072 KJ LEG CUSHION M RML0374 2 EJECT LEVER 28 RKFV0062 1S CASSETTE LID
118. of Deck P C B een 34 10 15 Disassembly of Traverse Unit 35 10 16 Disassembly for Deck Mechanism 36 10 17 Disassembly of Deck Mechanism P C B 39 10 18 Disassembly of cassette lid 10 19 Rectification for tape jam problem 40 11 Service Fixture and Tools 4 42 12 Service Positions MM 42 12 1 Checking and Repairing of Main P C B 42 12 2 Checking and Repairing of Transformer P C B 43 12 3 Checking and Repairing of Panel Deck amp Deck Mechanism P C B 222 2 43 12 4 Checking and Repairing of Power P C B 44 13 Procedure for Checking Operation of Individual Parts of Deck Mechanism Unit Mmmm 13 1 Operation Check with Cassette Tape 13 2 Operation Check without Cassette Tape 45 14 Measurement And Adjustments 47 14 1 Cassette Deck Section 47 15 Voltage and Waveform Chart M 49 15 1 CD Servo P C B 15 2 Deck P C B 8 Deck Mechanism P C B 49 A 50 15 4 Panel P C B amp Transformer P C B men 51 15 5 Power 51 15 6 Waveform Chart men 52 16 Wiring Connection
119. or deck mechanism unit mecha transition MODE Press STOP on main unit for SW abnormal is next error memorized The content of abnormality can be confirmed in the abnormal detection mode explained in the later section 21 SA AK250GCP Diagnosis Contents Description of error Automatic FL Display Remarks For deck mechanism unit Press STOP on main unit for next error H02 H03 01 HALF SW abnormal For deck mechanism unit Press STOP on main unit for next error F Reel pulse abnormal For deck mechanism unit Press STOP on main unit for next error 9 4 2 Error Code Table For CD Changer Block Error Code Diagnosis Contents Description of error Automatic FL Display Remarks F15 RESET SW REST SW ON is not For CD unit For Traverse abnormal detected within the Press STOP on main unit for specified time next error F26 Transmission error When set to CD mode the For CD unit For Traverse between CD Servo sense signal does not turn Press STOP on main unit for LSI IC and Low a fail safe time after next error microprocessor IC system command transmission is sent IHMS Cam gear Cam gear does not rotate For CD changer unit CRS1 abnormality to HOME position Press SINGLE CHANGE on main unit for next error ICSL Cam gear gear units Cam gear does not rotate For CD changer unit CRS
120. pplicable will appear on FL display Below is the information on the EEPROM IC ROM correction under 3 possible situations 1 In the case that the correction point existence data is other than O ie correction file exists EEPROM checksum display for the microprocessor shall be made after calculating checksum by summing up the content of data area from EEPROM IC 1 Checksum Firmware Value HEX Version DEC applicable when the EEPROM IC is installed 2 In the case when no is installed It is display as below no display of checksum data No Correction Firmware Point Data Version DEC 3 In cases that the filename is different even though a EEPROM is installed or no correction file exists NG shall be displayed the correction point existence data is set to 0 at this condition Filename Differs Firmware From Set Version DEC Note Microprocessor firmware refers to version number for microprocessor IC located on PANEL P C B It is subject to change which would be updated accordingly ROM correction checksum refers to the HEX code that is displayed upon key buttons pressed if EEPROM is loaded in the unit 9 3 Reliability Test Mode CRS1 Mechanism Below is the process flow chart of ageing for the CD changer unit CRS1 1 gt 5 gt Tray Tray 2 4 Tray 4 19 250 3 AGING MODE 3 DISC 1LOAD
121. rd FFC board When removing or connecting the short pin finish the job in as short time as possible 4 Do not turn the variable resistor for laser power adjustment It is pre adjusted during production time Lens Do not touch Flexible board FFC Handle it carefully No Pin 5 GND No Pin 4 Pin LD Variable resistor Do not turn Grounding for electrostatic breakdown prevention 1 Human body grounding Use the anti static wrist strap to discharge the static electricity from your body 2 Work table grounding Put a conductive material sheet or steel sheet on the area where the traverse unit with optical pickup is place 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 unit with optical pickup Caution when replacing the Traverse Unit The traverse unit has a short point shorted with solder to protect the laser diode against electrostatics breakdown Be sure to remove the solder from the short point before making connections 250 Wrist strap Anti static bracelet 1 Iron plate or some metals to conduct electricity 250 4 Precaution of Laser Diode Caution This product utilizes a laser diode with the unit turned ON invisible laser radiation is emitted from the pick up lens Wavelength 780 nm Maximum output radiation power
122. rease SA AK250GCP Step 7 Attach the sub chassis to the deck mechanism Deck Mechanism Unit Step 9 Catch the capstan belt to the pulley of the capstan motor 10 17 Disassembly of Deck Mechanism P C B Follow the Step 1 Step 4 of 10 4 Follow the Step 1 Step 4 of 10 5 Follow the Step 1 Step 5 of 10 10 Follow the Step 1 Step 3 of 10 13 Follow the Step 1 Step 3 of 10 14 Step 1 Remove 1 screw Step 2 Desolder plunger terminals Step 3 Release catches Step 1 Step 3 Release 3 catches to remove the Deck 1 Mechanism PCB Catch Step 2 Remove the solders of the plunger terminal Step 4 Remove Deck Mechanism P C B 39 250 10 18 Disassembly of cassette lid Follow the Step 1 Step 4 of 10 4 Follow the Step 1 Step 4 of 10 5 Follow the Step 1 Step 5 of 10 10 Follow the Step 1 Step 3 of 10 13 Step 1 Open the cassette lid Step 2 Remove spring and push the cassette lid in the direction of arrows gt lt lt gt o lt gt lt er L Spring Cassette lid 10 19 Rectification for tape jam problem Follow the Step 1 Step 5 of Item 10 4 Step 1 If a cassette tape cannot be removed from the
123. red by the digital spectrum analyzer A WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death CONTENTS Page 1 Safety Precautions 4 1 1 General Guidelines lt 4 12 Before Use ee 4 1 3 Before repair and 4 1 4 Protection Circuitry Fr 1 5 Safety Part Information 2 Prevention of Electro Static Discharge ESD to Electrostatically Sensitive ES Devices 5 3 Handling Precautions For Traverse Unit 7 4 Precaution of Laser Diode 9 5 About Lead Free Solder PbF 10 5 1 Service caution based on legal restrictions 10 6 Accessories 11 7
124. res to set the trays in STOCK position Gear 2 when pushing the gt Traverse Slide Plate please refer to 5 3 Setting the Tray In STOCK position for CRS1 Service Manual order MD0509368C 0 Play Gear2 Traverse Unit Note The traverse unit will move downwards stay in the Home Position Step 2 Push the traverse slide plate as arrow shown to release the traverse unit Caution Do not exert strong force on the traverse Step 1 slide plate Step 1 Press and hold the plunger lever and rotate the gear as arrows shown until it stop 35 250 Caution Do not damage the Play Gear 2 when pushing the Traverse Slide Plate Play Gear 2 Step 2 Slide Plate Traverse Unit Step 3 Remove the traverse unit as arrow shown Assembly of Traverse Unit Step 1 Traverse Unit Note Check that the boss is below the groove for both side Step 2 Push the traverse slide plate as arrow shown to lock the traverse unit 10 16 Disassembly for Deck Mechanism Follow the Step 1 Step 4 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 Follow the Step 1 Step 3 of Item 10 14 Follow the Step 1 Step 3 of Item 10 15 36 SA AK250GCP 10 16 1 Replacement of Pinch Roller and Head Block Step 1 Step 7 Release catches to remove the Remove the pinch rollers F head b
125. s 8 1 Using the Music Port This feature enables you to enjoy music from a portable audio equipment Connecting toja portable audiolequipment This feature enables you to enjoy music from a portable audio equipment Note peripheral components and cables are sold separately Portable audio equipment not included 5 Audio cord not included Playing a portable ESR Switch off the equalizer function if there is any of the portable audio equipment before you plug into the MUSIC PORT jack Otherwise sound from the speaker may be distorted 1 Plug the audio cord into the MUSIC PORT jack Press EXT IN repeatedly until MUSIC PORT is displayed 3 Play the portable audio equipment L LINE OUT position Analog player not included Rear panel of this unit Playing or recording from an pa You can connect to an analog player with a built in phone equalizer 1 Press EXT IN repeatedly until AUX is displayed 2 For listening Proceed to step 3 For recording Press e REC on the main unit to start recording 3 Start playback from the external source Note For details refer to the instruction manual of the unit which is to be connected When units other than those described above to be connected please consult your audio dealer Sound distortion may occur when you use an adaptor other than the one supplied 14
126. statically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by electro static discharge ESD 1 Immediately before handling any semiconductor component or semiconductor equiped assembly drain off any ESD on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging ESD wrist strap which should be removed for potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equiped with ES devices place the assembly on a conductive surface such as aluminium foil to prevent electrostatic charge build up or exposure of the assembly 3 Use only a grounded tip soldering iron to solder or unsolder ES devices 4 Use only an anti static solder remover device Some solder removal devices not classified as anti static ESD protected can generate electrical charge to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its protective package until immediately before you are ready to inst
127. tion e Tape record s playback SLEEP TPS Inspection FM Tuning check Tuner STEREO forced MONO Checking Checking 9 2 Special Mode Table 1 Item FL Display Key Operation Mode Name Description Front Key Self Diagnostic To enter into self 1 Select Mode diagnostic checking for main unit TAPE for TAPE mode Ensure no tape is inserted 2 Press and hold STOP button for seconds follow by FF To exit press l POWER button on main unit or remote control 16 Doctor Mode CD Test Mode CD Auto Adjustment CD Changer Reliability Test CRS1 To enter into Doctor Mode for checking of various items and displaying checksum and software version FL Display sequence Display 1 gt 2 enter into checking the reliability of changer unit To check the CD auto adjustment result for FLOCK TLOCK and CLVS FLOCK Focus Lock TLOCK Traverse Lock CLVS Constant Linear Velocity Speed To determine the reliability of CD Changer Unit For more information refer to section 9 3 FL Display 1 All segments will light up for 1 second Display 1 4_Opecon Version EEPROM Checksum if applicable 2 The Check Sum of EEPROM and firmware version will be display Display 2 ROM correction Firmware version No nml LILI LIL Self adjustment
128. ts No on the page of Parts Location and Replacement Parts List Section 24 if necessary Caution After replacing of CD Changer Unit ageing test is necessary Please confirm operation for CD Changer Unit Below is the list of disassembly sections Disassembly of Top Cabinet Disassembly of Rear Panel Disassembly of CD Changer Unit CRS1 Disassembly of Main P C B Disassembly of Transformer P C B Disassembly of Power P C B Disassembly of Front Panel Unit Disassembly of Panel P C B Disassembly of Tact Switch P C B Disassembly of Deck Mechanism Unit Disassembly for Deck P C B Disassembly of Traverse Unit Disassembly of Deck Mechanism Disassembly of Deck Mechanism P C B Disassembly of cassette lid Rectification for tape jam problem CAUTION NOTE Screw Part No ko 0 Please use original screws and at correct locations RHD30007 1SJ RHD30119 S XTW3 12TFJ RHD30111 3 XTW3 10TFC RHD26046 L XTWS3 6TFJ XTV3 10GFJ M XTW2 5LFJ XTW26 10SFJ RHD26022 1 XYC2 JF17FJ Below shown is part no of different screws types used 009900000000 26 250 10 2 Disassembly flow chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing To assemble the unit reverse the steps shown in the chart as below Top Cabinet
129. uring tray re open the cam gear will rotate in the opposite direction to reset the gearposition When it fails the error code will appear 24 For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error 250 9 4 3 Error Code Table For Power Supply Error Code Diagnosis Contents Description of error Automatic FL Display lRemaks F61 Power Amp IC output Upon power on For power abnormal PCONT HIGH DCDET L Press STOP on main unit for after checking LSI next error 9 4 4 CRS1 Error Code display CRS1 Error Code display 1 The errors that occured in CRS1 Mechanism can be recalled and displayed in the order of the occurence under self diagnostic for procedures to enter this mode Only the first 5 errors will be memorized in backup memory The subsequence error shall be ignored and not memoriz
130. y Avoid listening for prolonged periods of time to prevent hearing damage Plug type 3 5 mm stereo not included Microphone volume control Microphone jack Track skip search tape fast forward rewind tune preset channel selection time adjustment Disc play pause Tape play Manual EQ adjustment Cassette deck open Demonstration stop Cassette holder 7 2 Remote Control Key Buttons Operations Buttons such as function the same as the controls on the main unit Sleep timer 14 Auto off Disc 8 Program 9 12 Play mode 8 12 Disc album selection 8 __ Enter 9 0 SLEEP CLOCK AUTO OFF TIMER REC E F P CO x Play timer record timer 13 Clock timer 13 Numeric characters 8 10 12 Stop program clear 8 9 15 Display 9 O Muting Preset EQ 14 13 SLEEP AUTO OFF This auto off function allows you to turn off the unit in disc tape or USB mode only after left unused for 10 minutes Press and hold AUTO OFF to activate the function Press and hold AUTO OFF again to cancel The setting is maintained even if the unit is turned off DIMMER ePLAYI REC DIMMER To dim the display panel MUTING E To mute the sound Press the button to activate Press again to cancel 250 8 New Feature

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