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Panasonic SC-AK48, Service Manual

The Panasonic SC-AK48 is a powerful audio system that delivers impressive sound quality. With its sleek design, it effortlessly enhances any room decor. Get the most out of your system with our comprehensive and user-friendly Operating Instructions manual, available for free download at manualshive.com. Unlock the full potential of your SC-AK48 today.

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A

B

C

D

E

F

1

2

3

4

5

6

7

8

H501

1

2

3

4

5

6

7

8

9

10

11

12

13

IC501

1

IC500

1

2

3

4

5

6
7

8
9

10

11

12

13

14

15

16

17

18

19

20

21

22
23

24

25

26

2

3

4

5

6

7

8

9

10

11

12
13

14

15
16

17

18

E500

CP501

12
11
10

9
8
7
6
5
4
3
2
1

CP500

12
11
10

9
8
7
6
5
4
3
2
1

RL501

6

5

4

3

2

1

B
C
E

Q519

B
C
E

Q509

B
C
E

Q501

B
C
E

Q512

B C E

Q516

B C E

Q515

B C E

Q510

B C E

Q503

B C E

Q514

B C E

Q505

JK502

JK501

C573

C572

C574

C571

C558

C593

C545

C538

C547

C549

C577

C553

C546

C534

C523

C550

C543

C537

C554

C551

C556

C517

D517

D519

D528

D520

D521

D522

D526

D515

D524

D508

D518

D502

D503

D501

D507

D509

D504

D523

D516

D514

D512

C512

J

J

J

R529

R519

R539

R518

R522

R514

R515

R562

R525

R510

R570

R600

R606A

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

R524

R521

R527

R563

R551

J

J

R598

R569

R609

R590

R601A

R599

R567

R554

R552

R574

R593

R594

R546

J

J

J

J

J

J

C584

C516

C533

C544

C540

C552

J

J

D513

J

R576

R544

R547

R523

R538

R575

R578

J

J

J

J

J

J

J

J

J

J

R571

R568

R608A

R577

R572

C539

C578

J

J

J

J

J

J

J

J

J

J

J

J

J

J

J

R564

C583

C559

C563

C561

J

J

J

J

J

J

J

J

J

J

J

J

R550

J

J

J

J

R559

R532

R553

R560

R557

R555

R516

R520

R501

R508

R507

R509

R512

J

J

J

J

J

J

J

J

J

J

J

J

J

J

R533

R580

R505

R506

R558

R535

R561

R526

R587

R588

R583

R585

R584

R536

R513

R502

R534

R537

R556

J

C527

C514

C529

C530

C565

C568

C569

C560

C564

C562

C570

C567

C510

C528

C509

C508

C511

C526

C521

C503

C566

R586
C595

C500

C531

C513

C575

B C E

Q508

B C E

Q500

B C E

Q502

B C E

Q507

R517

R528

C525

C507

C515

D506

D505

J

R607A

R573

R565

R530

R595

R592

R500

R511

R540

J

J

R566

C581

C555

C504

C580

C548

C582

C506

C505

C557

B
C
E

Q517

B
C
E

Q518

B
C
E

Q520

B
C
E

Q511

B C E

Q521

J

J

R549

R581

J

C518

C542

R548

R545

R542

R591

C520

C519

C524

C532

POWER AMP P.C.B.

L

1

2

3

4

HIGH

(6    )

MID

(6    )

LOW
(6    )

LOW
(6    )

MID

(6    )

HIGH

(6    )

(L)

(L)

(L)

(R)

(R)

(R)

SPEAKERS

(REPX0218B)

E501

ELECTRICAL PARTS LOCATION

Ref. 

No.

Lo. 

No.

Ref. 

No.

Lo. 

No.

Ref. 

No.

Lo. 

No.

POWER AMP P.C.B.

L

IC500
IC501

Q500
Q501
Q502
Q503
Q505
Q507
Q508
Q509
Q510
Q511
Q512
Q514
Q515
Q516
Q517
Q518
Q519
Q520
Q521
D501
D502
D503
D504
D505
D506
D507
D508
D509
D512
D513
D514
D515
D516
D517
D518
D519
D520
D521
D522
D523
D524
D526
D528

RL501

CP500
CP501

JK501
JK502

E500
E501
H501
R500
R501
R502
R505
R506
R507
R508
R509
R510
R511
R512
R513
R514
R515
R516
R517
R518
R519
R520
R521
R522
R523
R524

R525
R526
R527
R528
R529
R530
R532
R533
R534
R535
R536
R537
R538
R539
R540
R542
R544
R545
R546
R547
R548
R549
R550
R551
R552
R553
R554
R555
R556
R557
R558
R559
R560
R561
R562
R563
R564
R565
R566
R567
R568
R569
R570
R571
R572
R573
R574
R575
R576
R577
R578
R580
R581
R583
R584
R585
R586
R587
R588
R590
R591
R592
R593
R594
R595
R598
R599
R600

R601A
R606A
R607A
R608A

R609
C500
C503
C504

C505
C506
C507
C508
C509
C510
C511
C512
C513
C514
C515
C516
C517
C518
C519
C520
C521
C523
C524
C525
C526
C527
C528
C529
C530
C531
C532
C533
C534
C537
C538
C539
C540
C542
C543
C544
C545
C546
C547
C548
C549
C550
C551
C552
C553
C554
C555
C556
C557
C558
C559
C560
C561
C562
C563
C564
C565
C566
C567
C568
C569
C570
C571
C572
C573
C574
C575
C577
C578
C580
C581
C582
C583
C584
C593
C595

6A
3A
3D
2B
3D
6C
7C
3C
2D
2B
4B
5D
2C
7D
3C
2B
4C
4D
2A
4C
4D
1B
2B
1B
2B
3C
3C
1B
3D
2B
2B
3B
2D
6C
2D
5B
2B
5B
4B
4B
4B
2C
5B
6D
4B
2C
3D
7D
8B
8C
7D
8A
2C
4D
7A
7B
6B
6B
7A
7A
7A
5D
5D
7B
7B
3D
3D
7A
3D
3D
3D
7A
2B
3D
3D
2C

5D
7A
1A
3D
2D
4C
6B
6B
7B
7B
7A
7B
3D
3D
5D
6D
3C
6D
4B
3C
5D
5B
5B
2B
5B
6B
4B
6B
7C
7B
7B
6B
6B
7B
4D
2B
7C
4D
4D
4B
4B
2B
4D
3B
4B
4D
4B
3C
3C
5B
3C
6B
5B
7C
8C
8C
7A
7B
7C
3B
6D
4C
4C
4C
4C
2B
3B
4B
3B
4C
4C
4B
3B
7A
6A
5D

5D
4D
3D
6A
7B
7B
6A
2B
6A
6A
3D
2B
4D
5D
6D
6D
6A
1B
6D
3D
6B
6B
7B
7B
7A
7B
6D
2B
1B
3D
6D
4B
3B
6D
2D
3B
7D
2B
7A
4D
4B
2D
4D
3B
3B
4C
4D
4D
4D
3C
7C
7C
7C
7C
7C
7C
7B
7A
7B
7B
7B
7B
5C
5C
6C
6C
3B
3B
4C
4C
4C
4D
7D
2C
7D
7A

66

SA-AK48

Summary of Contents for SC-AK48

Page 1: ...ia Latin America Middle East and Africa TAPE SECTION AR2 MECHANISM SERIES CD SECTION RAE0152Z M TRAVERSE DECK SERIES SYSTEM SC AK48 CASSETTE DECK SECTION Track system 4 track 2 channel Heads Record pl...

Page 2: ...cedure for Self operation of Cassette Mechanism Ass y 31 9 1 Operation Check Providing with Cassette Tape 31 9 2 Operation Check Not Provided with Cassette Tape 31 Weight 9 0kg Notes 1 Specifications...

Page 3: ...itry 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 t...

Page 4: ...the laser power it has been adjusted at the factory as shown in Fig 1 Fig 1 4 2 Grounding for electrostatic breakdown prevention 1 Human body grounding Use the anti atatic wrist strap to discharge the...

Page 5: ...5 Precaution of Laser Diode 5 SA AK48...

Page 6: ...6 Location of Controls 6 SA AK48...

Page 7: ...7 Location of Controls for Remote Control Transmitter 7 SA AK48...

Page 8: ...boards and replacing the main components For reassembly after operation checks or replacement reverse the respective procedures Special reassembly procedures are described only when required 8 1 Chec...

Page 9: ...shown below 8 2 Disassembly for the CD changer ass y The CD changer unit can be removed until the tray base ornament would removed 8 2 1 Disassembly for the disc tray ornament Follow the Step 1 Step...

Page 10: ...8 2 2 Disassembly for the CD changer unit Follow the Step 1 Step 3 of item 8 1 Follow the disassembly instruction for the disc tray ornament of item 8 2 1 10 SA AK48...

Page 11: ...ntally when loading the CD changer unit 8 3 1 Initial setting of CD unit Follow the Step 1 Step 3 of item 8 1 Follow the disassembly instruction for the disc tray ornament of item 8 2 1 Follow the dis...

Page 12: ...f CD unit in item 8 3 1 Check the CD servo P C B as shown below 8 3 3 Checking for the FL P C B and cassette mechanism control P C B The initial setting of CD unit must be completed Refer to the initi...

Page 13: ...ting of CD unit in item 8 3 1 Check the power supply P C B as shown below 8 4 Replacement for the traverse deck ass y Follow the Step 1 Step 3 of item 8 1 Follow the disassembly instruction for the di...

Page 14: ...14 SA AK48...

Page 15: ...15 SA AK48...

Page 16: ...for the disc tray Follow the Step 1 Step 3 of item 8 1 Follow the disassembly instruction for the disc tray ornament of item 8 2 1 Follow the disassembly instruction for the CD changer unit of item 8...

Page 17: ...17 SA AK48...

Page 18: ...the Step 1 Step 11 of item 8 1 Follow the disassembly instruction for the disc tray ornament of item 8 2 1 Follow the disassembly instruction for the CD changer unit of item 8 2 2 Follow the Step 1 S...

Page 19: ...19 SA AK48...

Page 20: ...20 SA AK48...

Page 21: ...21 SA AK48...

Page 22: ...22 SA AK48...

Page 23: ...23 SA AK48...

Page 24: ...Follow the Step 1 Step 3 of item 8 1 Follow the disassembly instruction for the disc tray ornament of item 8 2 1 Follow the disassembly instruction for the CD changer unit of item 8 2 2 Follow the St...

Page 25: ...head block Follow the Step 1 Step 3 of item 8 1 Follow the disassembly instruction for the disc tray ornament of item 8 2 1 Follow the disassembly instruction for the CD changer unit of item 8 2 2 Fol...

Page 26: ...26 SA AK48...

Page 27: ...belt Follow the Step 1 Step 3 of item 8 1 Follow the disassembly instruction for the disc tray ornament of item 8 2 1 Follow the disassembly instruction for the CD changer unit of item 8 2 2 Follow t...

Page 28: ...28 SA AK48...

Page 29: ...the disassembly instruction for the disc tray ornament of item 8 2 1 Follow the disassembly instruction for the CD changer unit of item 8 2 2 Follow the Step 1 Step 5 of item 8 3 3 Follow the Step 1 S...

Page 30: ...8 12 Measure for tape trouble Follow the Step 1 Step 3 of item 8 1 30 SA AK48...

Page 31: ...y power to the plunger for ordinary duration Duration approx 200msec e REV REW At REV PLAY mode supply power to the plunger momentary Duration approx 50msec f STOP At REV REW mode supply power to the...

Page 32: ...onds afterwhich it will STOP 6 Load a pre recorded tape with both recording tabs intact and close the cassette holder 7 Press TUNE TIME ADSJ button 8 Press REC STOP button Tape will not move 9 Press T...

Page 33: ...p REST SW S701 is not detected within the specified time about 8 seconds 2 CD tray opens automatically F16 CLAMP switch S4 NG Check Replace 3 Does not startup when TUNE TIME ADJ button is pressed F17...

Page 34: ...eing connected only and CD Automatic Alignment result is shown on FL display How to set CD test mode CD Automatic Alignment result indication Under CD test mode pressing the numeric key 0 on the remot...

Page 35: ...Set the unit to AM mode 3 Apply signal sa shown in Fig 1 from AM SG 4 Adjust Z102 so that the output frequency is maximized in Fig 2 Fig 1 Fig 2 13 1 3 AM RF Adjustment 1 Connect the instrument as sho...

Page 36: ...ument as shown in Fig 7 2 Playback the azimuth adjustment portion 8kHz 20dB of test tape QZZCFM Adjust the azimuth adjusting screw until the outputs of the L R ch are maximized Refer to Fig 8 Make sur...

Page 37: ...mode use REC STOP key 3 Measure and make sure that the output is within the standard value 4 Insert the CrO2 tape QZZCRX 5 Repeat step 2 and 3 Standard value Normal 14 4mV Standard value CrO2 17 5mV...

Page 38: ...DTA D G S 2SB1436R 2SC2002KTA 2SC2786MTA 2SC2787FL1TA E C B 2SA1037AKSTX 2SC2412KT96R 2SD2114K1V DTA114EKA146 DTA143XKA146 DTC114TKA146 E C B DTC144TKA146 KRA102STA KRC102STA KRC111STA KTC3875GRTA KTD...

Page 39: ...tandby on switch I S639 3D AI EQ switch 3D AI EQ S640 TRI AMP control switch MID S641 TRI AMP control switch HIGH S701 Rest switch REST S951 Deck1 mode detect switch MODE S952 Deck1 half detect switch...

Page 40: ...04 1K R706 1K I H G F E D C C742 0 027 B A R701 4 7 C701 6 3V33 CN701 RF TP29 C716 820P TJ701 A B C D E D E C A B D C B A C751 0 1 C750 0 1 VREF C702 0 1 C706 2700P C707 0 027 C704 0 1 C703 6 3V100 Q7...

Page 41: ...3 TP12 TP8 TP7 TP6 TP4 TP2 I H G F E D C B A S701 REST TP16 C745 1000P A B C D E F G H I G F E D C B A A B C D E F G H I R712 220 C718 0 22 C717 0 1 C744 8200P R709 68K R741 47K R711 82K C722 10P X701...

Page 42: ...0K D1172 MA8047MTX R1174 10K C1174 50V4 7 D1174 MA8036HTX C1184 1500P R1172 330 R1170 1K C1173 0 01 ERASE CURRENT CHECK POINT Q1173 DTC144TKA146 BIAS OSC CONT CrO2 Q1101 2SJ498CDTA HEAD SELECT REC ON...

Page 43: ...R1116 390K C1130 820P C1132 820P C1144 50V4 7 R1122 33K R1124 10K R1126 1K C1140 16V10 C1141 50V0 1 R1134 470K C1142 0 022 R1133 3 3K C1134 50V4 7 Q1108 DTC144TKA146 P B EQ REC EQ CrO2 H SPEED A B C D...

Page 44: ...45 10K C1145 16V10 F B A C B C C1150 10V47 R1139 10K D1173 MA111TX 47K 47K Q1151 1152 DTC144TKA146 SWITCHING PLAY ON Q1152 Q1151 C1162 16V100 A E D R1196 47K R1161 4 7K Q1116 R1197 47K R1162 4 7K C115...

Page 45: ...233 2 2K C1187 100P R1236 4 7K R1235 4 7K C1202 0 1 R1230 4 7K 10K 4 7K 10K 4 7K R1232 1K R1106 2 2K D C B A Q1218 DTA114EKA146 SWITCHING REC ON Q1220 DTA143XKA146 MOTOR DRIVE D E F C B A 1 2 3 4 5 6...

Page 46: ...IT R103 270 C101 0 01 C102 16V100 R151 82 R152 0 2 3 4 5 1 7 8 6 R1A 100K R7 2 7K C9 2 2P C7 4 7P C8 3 3P R8 680K R9 390 R11 680K R10 390 R6 390 C10 18P C6 3 3P C5 5 6P R5 560K C4 180P C3 2 2P R3 220...

Page 47: ...21 22K C139 25V4 7 R102 4 7K C119 680P C116 0 033 R143 22K C115 25V4 7 R120 47K C109 1000P C114 50V3 3 R118 3 3K A D B C R104 1K C103 0 01 C104 1000P R105 470 CF201 R106 470K 1 3 2 CF202 IC101 LA1833N...

Page 48: ...1000P R210 1K R410 1K R409 47K R209 47K M N Q351 KRC102STA PLUNGER DRIVE Q350 2SB621ARSTA PLUNGER DRIVE R349 10K R350 1K D316 RL1N4003S P C236 0 47 R346 22K R345 220 14 2 1 3 4 5 6 7 8 9 10 11 12 13...

Page 49: ...TAPE PB CD EXT IN PHONO AUX AVss AGND PHONO AUX EXT IN CD TAPE PB TUNER VIDEO MD DEL L ch R ch 33 GRAPHIC EQUALIZER GRAPHIC EQUALIZER C314 150P R323 2 2K R455 10K R456 4 7K R453 4 7K R452 10K C423 50...

Page 50: ...15 D317 1SS355TE17 D315 D317 R232 3 9K R357 100K R356 15K D201 R230 47K C234 0 068 R234 2 2K C240 50V3 3 C241 100P R231 18K R240 43K C235 6800P D201 1SS355TE17 R440 43K D401 1SS355TE17 R430 47K D401 C...

Page 51: ...MP MID S641 TRI AMP HIGH R602 6 8K CP600 CN600 R936 10K F G H I S611 TAPE R610 1K S608 CD R607 1K S605 TUNER R603 1 2K R641 1 8K S628 ECD MODE R639 1K S621 PLAY REC R634 1K S625 CLOCK TIMER R629 1 2K...

Page 52: ...LY CONT Q610 2SA933SSTA POWER SUPPLY R938 4 7K R937 470K D643 RVD1SS133TA 1 2 3 VDD GND OUT Z602 RCDRPM6937H4 REMOTE SENSOR R700 47 C640 50V4 7 C622 0 01 R950 22K D644 RVD1SS133TA D645 RVD1SS133TA R65...

Page 53: ...53 SA AK48...

Page 54: ...35V22 C660 50V3 3 R922 68 R925 68 L605 100 H D636 MA4020LTA R907 100K R701 330 A B C D E F G H I J K L M N O P Q R S T U V W A B C D E F G H I J K L M N O P Q R S T X U V C653 10V330 C634 35V22 R914 1...

Page 55: ...7K R509 3 9K 10 11 C593 50V10 R526 4 7K R580 18K R581 18K R549 15K R550 15K R568 22K R508 4 7K R561 10K C547 6 3V100 P GND B 5 LED9V 12 2 1 3 4 5 6 7 8 9 H Lch IN CD B 3 10 11 GND1 H Rch IN LOW Rch I...

Page 56: ...1D3E C574 35V4700 D524 1D3E C571 35V4700 C573 35V5600 C583 0 18 R593 820K D521 1D3E C578 0 01 R594 3 3K R574 2 7K D528 RVD1SS133TA D528 D522 MTZJ15CTA R577 2 2 D520 1D3E R572 2 2 Q519 2SB1436R POWER S...

Page 57: ...Y DRIVE D977 RVD1SS133TA RL502 CN502 R976 10K R977 10K C975 35V4 7 D979 1D3E D980 1D3E C978 0 01 C977 16V1000 D981 1D3E C976 16V1000 C979 1000P R983 1 2K R984A 1 5K D982 MTZJ7R5ATA D983 1D3E D984 1SS2...

Page 58: ...3 2 1 W1 D1 Ca A C E BOTTOM SW P C B G REP2578A N S5 IC701 IC702 IC703 Q701 X701 S701 CN701 CN702 M701 M702 TJ701 R701 R702 R704 R705 R706 R707 R708 R709 R711 R712 R714 R715 R717 R718 R721 R723 R724 R...

Page 59: ...R1154 R1151 R1153 RJ1273 R1158 TP9 GND TP10 TP4 TP11 TP12 TP5 TP3 TP2 TP1 REPX0169J ELECTRICAL PARTS LOCATION Ref No Lo No Ref No Lo No Ref No Lo No MECHANISM CONTROL P C B B IC1101 IC1102 IC1105 Q11...

Page 60: ...R103 R115 R128 R116 R130 R121 R151 R137 R136 R135 R134 R133 R117 R138 R141 R145 R142 R146 R129 R127 R123 R143 R102 R120 R132 R152 R122 C300 C103 R111 R114 R113 C110 C112 C132 C117 C118 C137 C138 C131...

Page 61: ...F 4F 4F 4F 4F 4F 3F 3F 2F 6E 2F 2E 3F 3F 4F 4F 6D 6E 7B 6E 6E 3A 3B 3B 3B 4B 2B 2B 3C 3A 3A 3A 4B 3C 4C 4B 4B 4B 4B 5B 5B 5B 4B 4B 3A 4B 3C 3B 4A 4B 4A 4A 4A 4C 4B 5B 4B 4B 4B 5B 5B 3B 3B 4B 3D 3E 3E...

Page 62: ...CP605 14 15 16 17 18 19 20 J J J J J J J J J J J J J J J J J J R921 R941 R931 R947 R946 R948 C665 C644 C635 C636 C631 C630 C637 C638 C639 C643 C645 C657 C902 X600 X601 B C E Q605 R945 R689 R696 C646 C...

Page 63: ...4 R607 R610 R615 R618 R619 R620 R621 R622 R623 R625 R626 R627 R628 R629 R630 R632 R634 R635 R636 R637 R639 R641 R642 R643 R651 R658 R662 R663 R664 R665 R666 R667 R668 R669 R670 R671 R672 R673 R674 R67...

Page 64: ...so the cut corner is located upper right Refer to the figure below 0N2180RLC 0N2180RLC1 Parts No Direction Remarks Note for IC971 replacement Two different types old or new parts are mounted on P C B...

Page 65: ...ECK 2 OPEN S641 TRI AMP HIGH S640 TRI AMP MID S601 TRI AMP LOW D607 TRI AMP OPERATION 2 P C B J REPX0217B 1 3 2 S600 SOUND CONTROL JOG ELECTRICAL PARTS LOCATION OPERATION 2 P C B J Ref No Lo No Ref No...

Page 66: ...ID 6 LOW 6 LOW 6 MID 6 HIGH 6 L L L R R R SPEAKERS REPX0218B E501 ELECTRICAL PARTS LOCATION Ref No Lo No Ref No Lo No Ref No Lo No POWER AMP P C B L IC500 IC501 Q500 Q501 Q502 Q503 Q505 Q507 Q508 Q509...

Page 67: ...2 FC1 F2 T2A FC4 FC3 W1A Z501 J J JK500 J J 110 127 220 230 240V 50 60Hz AC IN J J J J J S501 VOLT ADJ J W8 W9 W10 W6 W5 W7 1 8 7 6 5 4 3 2 REPX0202C PL1 IC1 Q1 D2 S1 W2 RM1 R1 C1 ELECTRICAL PARTS LOC...

Page 68: ...9 E C B Q978 E C B Q976 D981 C978 B C E Q975 T501 POWER TRANSFORMER REPX0202C ELECTRICAL PARTS LOCATION Ref No Lo No Ref No Lo No POWER TRANSFORMER P C B M W7 W8 W9 R976 R977 R978 R979 R980 R981 R982...

Page 69: ...MOTOR M701 TRAVERSE MOTOR VREF 22 17 16 D4 D4 11 10 D1 D1 13 12 D2 D2 TRV TRV M 1 IN3 24 IN4 23 15 14 D3 D3 RST PGND1 PGND2 8 19 B1 7 20 PVcc1 PVcc2 IN1 6 IN2 3 PC2 4 TRD FOD TVD ECS ECM PC ENV OFTR...

Page 70: ...LOCK FBAL FBAL TBAL TBAL FOD FOD TRD TRD TVD TVD VREF VREF TRV KICK DSLF2 DSLF2 DMUTE BCLK SRDATA LRCK PC PC ECS ECS ECM ECM IPFLAG FLAG 11 12 30 31 28 27 22 29 21 26 42 16 1 3 2 23 25 24 64 65 6 TX A...

Page 71: ...ET GND 5 7 ST MONO FM AM SD FMDET FM IF IN OSC OUT AFC OSC AM RF IN AGC AM OUT DET OUT PILOT IN MPX IN PILOT OUT Lch 14 Rch 17 18 AIN AOUT AM ANT COIL AM OSC COIL Z101 AM ANT B4 STRQ AM IF IN AM MIX O...

Page 72: ...DATA 14 2PL D971 Q1206 1208 SOLENOID B5 B6 1M 13 Q1203 1220 MOTOR DRIVE MOTOR M B5 B6 16 Vcc 1 GND DECK1 S972 HALF Z971 INTERFACE S974 R REC INH S975 F REC INH S971 MODE DECK2 Q1153 Q1154 29 8 AGC OFF...

Page 73: ...19 29 D640 D641 D642 PLLCK PLLDA PLLCE STATUS 2 TPS IN STAT SUBQ BLKCK SQCK RESTSW D644 ST DO SUBQ DO ST SWITCHING Q901 SWITCHING Q903 SWITCHING Q902 D645 A SER3 7 AOUT SER5 12 MKCLK B SER2 10 MKDATA...

Page 74: ...SUPPLY 4 CD 7 PCONT MUTE A 8 BU2090AF E2 IC602 LED DRIVE DATA 2 3 CLK B10 9 13 SW AUX TAPE TUNER CD D600 603 606 TAPE CD TUNER S WOOFER AUX 16 V CC VREF 1 GND TRI AMP 8 14 LVL2 15 LVL1 B10 D607 TRI A...

Page 75: ...PCONT D313 B6 D1 POSITION SENSOR CHG AD2 17 M38199MF227 IC600 SYSTEM CONTROL FL DRIVE M RM1 LOADING MOTOR 1 5 6 2 10 7 8 LED9V 4 D2 Q1 25 CHG HALF 23 CHG CW 24 CHG CCW DC DET HP SW DC DET 100 VREF SYS...

Page 76: ...Q512 D521 D520 Q515 SWITCH ING Q509 REGULATOR REGULATOR RELAY DRIVE POWER SUPPLY CONT POWER SUPPLY POWER SUPPLY CONT POWER SUPPLY Q975 RELAY DRIVE AC IN SWITCH ING REGULATOR B7 B2 B8 B3 D503 LED9V D50...

Page 77: ...18 Troubleshooting Guide SA AK48 77...

Page 78: ...SA AK48 78...

Page 79: ...3 1 1 3 OPTICAL PICKUP T502 POWER TRANSFORMER AC IN CN500 W1A W6 W7 W5 W10 W9 W8 T501 POWER TRANSFORMER W6 W8 W1A W5 W7 W9 W10 W500 1 3 3 1 1 3 6 1 CN502 13 1 CN501 GRAY RED BLUE ORANGE YELLOW BLACK W...

Page 80: ...1 12 CP501 1 12 CN300 13 1 13 1 H501 SPEAKERS 6 CN304 1 10 CN303 2 20 1 19 2 26 1 25 CN302 CN309 1 13 2 14 1 8 H600 CP600 1 8 CN600 I OPERATION 1 P C B H603 CP605 2 20 1 19 CP604 2 26 1 25 2 1 2 1 CP...

Page 81: ...kHz 40 VSS GND 41 MBP1 O Beat proof control signal output 42 MBP2 O Beat proof control signal output 43 CHG SW2 I Disc tray position 2 detect signal input 44 CHG SW1 I Disc tray position 1 detect sign...

Page 82: ...VCOF2 VCO loop filter terminal Not used connected to GND 55 SUBC Sub code serial output clock Not used open 56 SBCK Sub code serial input data Not used connected to GND 57 VSS GND terminal 58 X1 IN I...

Page 83: ...TRANS HOLDER 1 M 38 RKMX2B0045 DBL TOP CABINET BENT 1 M 39 RGK1232 S CD LID 1 M 40 RGW0330A S MAIN VOL KNOB 1 M 41 RGU1850A Q DPL BUTTON 1 M Ref No Part No Part Name Description Psc Remarks 42 RYQ0290...

Page 84: ...SPINDLE 1 M 371 RHM0001 MAGNET 5 M 372 RMX0140 DISC SPACER 1 M 373 RME0261 FRONT LOCK SPRING 1 M Ref No Part No Part Name Description Psc Remarks 374 RMQ0742 SPINDLE BASE 1 M INTEGRATED CIRCUITS IC1...

Page 85: ...A700ATA DIODE 1 M D506 MA700ATA DIODE 1 M D507 MTZJ10BTA DIODE 1 M D508 MTZJ16BTA DIODE 1 M D509 MTZJ12BTA DIODE 1 M D512 RVD1SS133TA DIODE 1 M D513 KBP152G4R5 DIODE 1 M D514 1D3E DIODE 1 M D515 RVD1S...

Page 86: ...3 RJS1A9420 20P FFC CONNECTOR 1 M CN304 RJS1A5210 10P WIRE HOLDER 1 M CN309 RJS1A9414 1 14P CONNECTOR 1 M CN500 RJT029W03V 1 CONNECTOR 1 M CN501 RJT119W13V 13P CONNECTOR 1 M CN502 RJP6G18ZA SOCKET 1 M...

Page 87: ......

Page 88: ...4 7K 1 10W 1 M R420 ERJ6GEYJ104V 100K 1 10W 1 M R421 ERJ6GEYJ102V 1K 1 10W 1 M R422 ERJ6GEYJ123V 12K 1 10W 1 M R423 ERJ6GEYJ473V 47K 1 10W 1 M Ref No Part No Part Name Description Psc Remarks R424 ERJ...

Page 89: ...4W 1 M R631 ERDS2TJ472T 4 7K 1 4W 1 M R632 ERDS2TJ822T 8 2K 1 4W 1 M R633 ERDS2TJ182T 1 8K 1 4W 1 M Ref No Part No Part Name Description Psc Remarks R634 ERDS2TJ102T 1K 1 4W 1 M R635 ERDS2TJ472T 4 7K...

Page 90: ...R948 ERDS2TJ472T 4 7K 1 4W 1 M R949 ERDS2TJ223T 22K 1 4W 1 M Ref No Part No Part Name Description Psc Remarks R950 ERDS2TJ223T 22K 1 4W 1 M R951 ERDS2TJ103T 10K 1 4W 1 M R952 ERDS2TJ331T 330 1 4W 1 M...

Page 91: ...P 50V 1 M C109 ECUV1H102KBN 1000P 50V 1 M C110 ECUV1H103KBN 0 01 50V 1 M C111 ECEA1EKA4R7B 4 7 25V 1 M Ref No Part No Part Name Description Psc Remarks C112 ECUV1H103KBN 0 01 50V 1 M C113 ECUV1H102KBN...

Page 92: ...CBT1H104ZF5 0 1 50V 1 M C516 ECKR1H103ZF5 0 01 50V 1 M C517 ECEA1HKA010B 1 50V 1 M C518 ECEA1HKA010B 1 50V 1 M Ref No Part No Part Name Description Psc Remarks C520 ECBT1C182KR5 1800P 16V 1 M C521 ECK...

Page 93: ...N 820P 50V 1 M C717 ECUZ1E104ZFN 0 1 25V 1 M C718 ECUZ1C224KBN 0 22 16V 1 M Ref No Part No Part Name Description Psc Remarks C721 ECUZ1H100DCN 10P 50V 1 M C722 ECUZ1H100DCN 10P 50V 1 M C723 ECEA1AKA22...

Page 94: ......

Page 95: ...22 Cabinet Parts Location 95 SA AK48...

Page 96: ...96 SA AK48...

Page 97: ...23 Mechanism Parts Location 97 SA AK48...

Page 98: ...98 SA AK48...

Page 99: ...24 CD Mechanism Parts Location 99 SA AK48...

Page 100: ...25 Packaging 100 SA AK48...

Page 101: ...ion is a violation of law SB AK48 Colour S Silver Type Area GC Asia Latin America Africa and Middle Near East LOW 200W Music Output sound pressure level 87 dB W 1 0m Cross over frequency 150 Hz 3 5 kH...

Page 102: ...aker to the left terminal 1 Strip off the outer covering and twist the center conductor Make sure the bare ends of the wires are not unravelled If they are twist them toght again 2 Insert the wire to...

Page 103: ...P CABINET ASS Y L M 1 BKM0145 SP CABINET ASS Y R M Ref No Part No Part Name Description Remarks 1 1 RGQ0230 K CORD CLIPPER M 1 2 RMQ0941 BUSH TERMINAL M 1 3 RKA0072 KJ LEG M 1 4 RMQ0938 PORT PACKING M...

Page 104: ...SS Y R M 24 RGK0500 K DUST CAP M 25 RMR1208 K TWEETER SPACER M 26 REE0981 WIRE M 27 RMQ0931C CAB PACKING M 28 RMQ0931LK CABINET PACKING M CAPACITORS C1 ECEA1HAY4R7S 4 7uF 50V M PACKING MATERIALS P1 RP...

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