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Panasonic SA-AK270EB Service Manual Download Page 84

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I

J

L

M

N

P

O

K

MAIN CIRCUIT

SCHEMATIC DIAGRAM - 4

SA-AK270EB/EG MAIN CIRCUIT

1/4

2/4

3/4

4/4

: - B SIGNAL LINE

: + B SIGNAL LINE

R2907

1K

1

PLUNGER

UD

SENSOR

CW

ST

SW

OPEN

SW

CCW

CLOSE

SW

PLAY

SW

REG
VOL_JOG

BOTTOM

SW

[31]IPOD-Txd

[32]IPOD-Rxd

[33]USB_RST(CLK)

ASP-CLK

HP_SW

PA_SW

DECK-PLUNGER

DCDET

SMPS_BP

DECK-MOTOR

DECK-PHOTO

PCONT

IPOD_RXD

HP_SW

PA_SW

RESTSW

HOME_SW

MDATA

MCLK

DVREF+

CNVSS

PLAY_SW

OPEN_SW

CLOSE_SW

CHG_PL

BOTTOM_SW

UD_SENSOR

USB_SDA

RESET

DVREF+

VREF+

VREF+

BLKCK

USB_SCL

MUTE_F

PHOTO

ASP_DA

USB_RST-UART_CLK

DC_DET2

PCONT

MOD_DA

AM_BP

DECK_MTR

DECK_PL

DC_DET

MUTE_A

ASP_CLK

DPORT_PLYPAU_BUSY

USB_TE

FL_CS

DBASS_JOG2

DBASS_JOG

REC

FL_DA

FL_CLK

VOL_LED

USB_VE

ME

VREF+

SYNC

MUTE_S

RMT

IPOD_TXD

PLL_CE

TU_DIN

TU_DOUT

PLL_CLK

CHG_CW

ST_SW

DGND

DBASS_LED

CHG_CCW

MLD

F_HOP

USB_IRQ

STATUS

PA_IN_L

PA_IN_R

USB_RST-

UART_CLK

DC-DC_GND

USB_IRQ

USB_SDA

USB_TE

DGND

USB_SCL

USB_VE

ME

ST_REQ

ST_CLK ST_IN

DC-DC_GND

CD_RST

DVREF+

MOTOR_GND

STATUS

BLKCK

RESTSW

MLD

MCLK

MDATA

CD-L

A_GND

CD-R

DECK_AD2

DECK_AD1

KEY1

CD_RST

V_JOG_A

KEY2

KEY3

EJECT

VREF+

CD+8V

CD_3.3V

CD_3.3V

USB+5V

2

7

8

5

4

3

6

3

2

98

94
95

92

91

93

97

96

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

100

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65 64

66

68

70

51

49

45

47
46

41

44

42

43

48

50

39

37

35

32
31

34
33

36

38

40

53

55

57

62

60 59

61

63

58

56

54

52

75

73

71

72

74

6

5

8

9

11

12

10

18

15

17

16

20

19

13

14

7

2

1

4

3

22

21

6

5

8

9

11

12

10

18

15

17

16

20

19

13

14

7

2

1

1

4

3

22

22

21

470k

22k

100

3.3k

4.7k

10k

100
100
100
1k
560p

1k

10k

100

0

10M

100

22p

1k

100

220

18p

1k

100

100

100

100

1k

100

1k

1k

100

100

100

47k

47k

47k

100

100

1k

1k

100

100

100

100

100

100

100

1k

100

100

100

100

100

1k

1k

0.1

B0ACCK000005

H2B100500004

IC2951

EEPROM IC

(NOT SUPPLIED)

R2952

22k

R2743

Q2743

Q2743

B1ACKD000006

DECK SUPPLY

CONTROL SWITCH

Q2745

B1GBCFLL0037

DECK SUPPLY (PCONT)

CONTROL SWITCH

R2744

4.7k

R2745

1k

R2951

R2637

C2951

0.022

R2953 4.7k

R2832

100

C2953 330p

R2878

R2689

10k

R2881

1k

R2889

5.6K

R2886

R2675

R2679

R2685

10K

R2892

R2600

100k

R2895
C2895

C2897

560p

R2890

1k

R2894

R2897

R2893

R2609

R2809

R2611

R2610

R2830

R2812

47k

C2813

3.3

Q2812

B1GBCFLL0037

DECK SUPPLY (PCONT)

CONTROL SWITCH

C2613

220

C2812

1

D2812

C2611

R2813

1M

R2819

R2829

R2815

X2815

X2910

X2910

C2960

R2837

R2835

R2839

R2841

R2845

R2844

R2843

R2838

R2848

R2836

R2842

R2846

R2638

R2647

R2644

R2854

R2853

R2852

R2861

R2855

R2858

R2857

R2856

R2636

3.9K

R2635

3.9K

R2620

22k

R2828

R2827

R2820

10k

R2833

R2818

R2865

R2866

R2863

R2807

R2875

1k

R2877

R2874

R2876

IC2801

RFKWAK270PL

MICROPROCESSOR

R3204

0

R3205

100k

C2002

0.01

R2061

470

R2064

3.9K

R2062

470 R2063

3.9K

R2044

4.7k

R2041

2.7k

R2043

4.7k

R2674

10k

R2042

2.7k

C2054

CN3200

CN2801

C2881

1000p

R2631

4.7K

D2051

R2632 4.7k

Xcin

Vcc

Xin

RMT

/NMI

Xout

Xcout

Vss

Vss

RDS_DAT

KEY1

KEY3
KEY2

LVL_METER

AVSS

DECK AD1

[78]MCLK

[79]/RESET_SW

[80]HOME_SW

[97]DECK_AD2

[98]Vref

[99]Avcc

[100]DEMO_SEL

DECK_EJECT

CD_RST
NC
NC
NC

NC
NC

NC

NC

NC

NC

F_HOP

BYTE

RDS_CLK

CS

EE_DAT

EE_CS
EE_CLK

NC

NC

GND

VCC

DGND

TERR

VCC

BASS

JOG1

BASS

JOG2

MMOD0

VERR

MUTE_A

MUTE_DA

EE_CS/EFP/EPM

FL_CS

EE_DAT

PCONT

DCDET1

EE_CLK

BLKCK

USB_SCL

MUTE_S

PLL_SD

SW_LVL2

USB_SDA

SYNC

PLL

CLK

TUNER

IN

SW_LVL1

MUTE_F

TUNER

OUT/ST

D3.3V

MUSIC PORT

Mmodo.error

MLD

MDATA

BLKCK

MCLK

MOTOR_GND

D5V

DGND

DGND

/RST

STIN

STREQ

DGND

CD_RST

CD_MLD

DGND

DGND

CD_CLK

TO

USB MODULE

CIRCUIT

(P901) IN

SCHEMATIC

DIAGRAM -10

TO

CD SERVO

CIRCUIT

(CN7002) IN

SCHEMATIC

DIAGRAM - 1

STCLK

CD_STAT

USB_RST

CD_DATA

USB_SDA

USB_SCL

USB_IRQ

STAT

LOADING

Verify.error

Timeout.error

/REST_SW

L

R

TX

ST_IN

A_GND

CD_GND

ST_REQ

CD_3.3V

ST_CLK

CD_GND

+7.5V

LD_SW

CD_GND

1

Q2812

Q2745

47k

[51]DMT

[52]DECK REC

[53]VOL LED

[54]FL_CLK

[55]FL_DOUT

B0JAME000114

EFP_CNVss

EFP_RESET

ASP-DAT

BUSY

USB.IRQ/WR

START

STATUS

MLD

MDATA_OUT

H0A327200115

IC2809

C1BB00001137

IC2809

RDS IC

7

5

6

1

2

4

3

10

12

14

15

16

13

11

8

9

FLOUT

VSSa

RDQA

RDS-ID

MPXin

VREF

VDDa

VSSD

VDDD

MODE

RST

RDCL

XIN

XOUT

CIN

TEST

DET_OUT

CD_3.3V

L2901

L2901,L2902

G0C101JA0052

C2907

560P

C2906

47

C2905

470P

C2904

50V4.7

L2902

RDS_DA

R2905

2.2K

R2906 220

DC-DC_GND

C2908 47P

C2909

47P

C2910

470P

C2911 6.3V47

X2901

X2901

H0H433400002

RDS_CLK

R2908

220

R2909

1K

RDS CCT

1

3

2

K9ZZ00001279

E2001

CN2001

TO

MUSIC CIRCUIT

(ZJ6801) ON

SCHEMATIC

DIAGRAM- 7

1

2

DBASS_LED

RDS_DA

RDS_CLK

15

BH

BG

BF

BE

BA

BB

: MUSIC PORT SIGNAL LINE

: CD SIGNAL LINE

: USB SIGNAL LINE

: TAPE RECORD SIGNAL LINE

TO MAIN SECTION (4/4)

TO MAIN SECTION (1/4)

SA-AK270EB / SA-AK270EG

84

Summary of Contents for SA-AK270EB

Page 1: ...ed copying and distribution is a violation of law SA AK270EB SA AK270EG Colour K Black Type Record playback Solid permalloy head Erasure Double gap ferrite head Motor DC servo motor Recording system AC bias 100 kHz Erase system AC erase 100 kHz Tape speed 4 8 cm s Overall 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 ...

Page 2: ... condensation Power consumption in standby mode 0 4 W SYSTEM SC AK270 EB Music center SA AK270 EB Speaker SB AK270 PL SC AK270 EG Music center SA AK270 EG Speaker SB AK270 PL For information on speaker system please refer to the original Service Manual Order No MD0802018CE for SB AK270PL K Notes 1 Specifications are subject to change without notice Mass and dimensions are approximate 2 Total harmo...

Page 3: ...es 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 5kΩ 10 watts resistor in parallel with a 0 15µF capacitor between each exposed metallic part on the set and a good earth ground such as a water pipe as shown in Figure 1 3 Use an AC ...

Page 4: ...1 2 Caution for AC Mains Lead 1 3 Before repair and adjustment Disconnect AC power discharge AC Capacitors C5700 C5701 C5703 C5704 C5705 C5706 and C5707 through a 10Ω 5W 4 SA AK270EB SA AK270EG ...

Page 5: ...marked by in the Schematic Diagrams 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 Reference No Part No Part name Description Remarks 18 RGRX0070C A REAR PANEL M EG 18 RGRX0070C B REAR PANEL M EB 36 RKMX0144 K T...

Page 6: ...y 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 fro...

Page 7: ... 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 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...

Page 8: ...8 SA AK270EB SA AK270EG ...

Page 9: ...ält eine Laserdiode Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit abgestrahlt Wellenlänge 780nm Maximale Strahlungsleistung der Lasereinheit 100 µW VDE Die Strahlung an der Lasereinheit ist ungefährlich wenn folgende Punkte beachtet werden 1 Die Lasereinheit nicht zerlegen da die Strahlung an der freigelegten Laserdiode gefährlich ist 2 Den werkseitig justierten E...

Page 10: ...ing Lead Free Solder PbF The 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 PCB using the lead free solder To 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 melt...

Page 11: ...6 Operation Procedures 6 1 Main Unit Key Buttons Operations 11 SA AK270EB SA AK270EG ...

Page 12: ...6 2 Remote Control Key Buttons Operations 12 SA AK270EB SA AK270EG ...

Page 13: ...13 SA AK270EB SA AK270EG ...

Page 14: ...7 New Features 7 1 Using the Music Port This feature enables you to enjoy music from a portable audio equipment 14 SA AK270EB SA AK270EG ...

Page 15: ...7 2 Connecting and Playing a USB Mass Storage Class Device 15 SA AK270EB SA AK270EG ...

Page 16: ...hecking and inspecting namely Self Diagnostic and Test Mode 8 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 16 SA AK270EB SA AK270EG ...

Page 17: ...8 2 Service Mode Table 1 17 SA AK270EB SA AK270EG ...

Page 18: ...8 3 Service Mode Table 2 18 SA AK270EB SA AK270EG ...

Page 19: ...8 4 Reliability Test Mode CRS1 Mechanism Below is the process flow chart of ageing for the Mechanism unit CRS1 19 SA AK270EB SA AK270EG ...

Page 20: ...ection 8 2 Service Mode Table 1 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 20 SA AK270EB SA AK270EG ...

Page 21: ...The error code is automatically display after entering into self diagnostic mode 8 5 1 Error Code Table For Deck Mechanism 21 SA AK270EB SA AK270EG ...

Page 22: ...8 5 2 Error Code Table For CD Changer 22 SA AK270EB SA AK270EG ...

Page 23: ...n backup memory The subsequence error shall be ignored and not memorize 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 DISC EXCHANGE to display subsequence error code It shall repeat after reaching error no 5 e g 1 _ _ _ _ I H M S DISC EXCHANGE 2 _ _ _ _ I T O P DISC EXCHANGE 3 _ _ _ _ H O M E DIS...

Page 24: ...3 To clear the error code memory In CRS1 Self Diagnostic mode long press DISC EXCHANGE key 2s or more 4 To exit CRS1 Self Diagnostic mode turn off the set 24 SA AK270EB SA AK270EG ...

Page 25: ...ent are required 4 Refer to the Parts No on the page of Replacement Parts List Section 23 if necessary Caution After replacing of Mechanism Unit CRS1 ageing test is necessary Please confirm operation for Mechanism Unit CRS1 Disassembly of Top Cabinet Disassembly of Mechanism Unit CRS1 Disassembly of Rear Panel Disassembly of Front Panel Unit Disassembly of Panel P C B Tact Switch P C B Remote Sens...

Page 26: ...26 SA AK270EB SA AK270EG ...

Page 27: ...he 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 27 SA AK270EB SA AK270EG ...

Page 28: ...9 3 Main Components and P C B Location 28 SA AK270EB SA AK270EG ...

Page 29: ...Lift the sides of top cabinet outwards as arrow shown Step 4 Push the top cabinet backwards as arrow shown to release the catches Step 5 Lift up the top cabinet and remove it in the direction of arrow 9 5 Disassembly of Mechanism Unit CRS1 Follow the Step 1 Step 5 of Item 9 4 Step 1 Remove 1 screw at rear cover 29 SA AK270EB SA AK270EG ...

Page 30: ...pecial Note During reassembling procedure ensure both the claws and catches are fully catched Assembly is secured upon hearing a click sound Step 5 Release the tabs at the bottom of the front panel Caution Do not exert strong force when releasing the tabs Step 6 Shift the front panel unit slightly forward in the direction of arrows 30 SA AK270EB SA AK270EG ...

Page 31: ...ly of traverse unit please refer to original Service Manual for the Disassembly and Assembly of the Mechanism Unit CRS1 9 6 Disassembly of Rear Panel Follow the Step 1 Step 5 of Item 9 4 Follow the Step 1 of Item 9 5 Disassembly of Rear Cover Step 1 Remove 2 screws at rear cover Disassembly of Rear Panel Step 2 Remove 7 screws at rear panel 31 SA AK270EB SA AK270EG ...

Page 32: ... 5 of Item 9 5 Step 1 Detach 27P FFC cable at connector CN2806 at Main P C B Step 2 Detach 21P FFC cable at connector CN3200 at Main P C B Step 3 Detach 2P wired cable at connector CN2001 at Main P C B Step 4 Detach 10P FFC cable at connector CN2807 at Main P C B Step 5 Detach 22P FFC cable at connector CN2011 at Main P C B Step 6 Remove the front panel unit 32 SA AK270EB SA AK270EG ...

Page 33: ...Follow the Step 3 Step 5 of Item 9 5 Follow the Step 1 Step 6 of Item 9 7 Step 1 Remove Volume knob as arrow shown Step 2 Remove 8 screws at Panel P C B Step 3 Remove 2 screws at Tact Switch P C B Step 4 Release 2 catches at Panel P C B Step 5 Release 6 catches at Tact Switch P C B 33 SA AK270EB SA AK270EG ...

Page 34: ... ensure that the diode shown on Tact Switch P C B are in upright position 2 During reassembling procedures ensure that D Bass knob is seated properly 9 9 Disassembly of USB P C B Follow the Step 1 Step 5 of Item 9 4 Follow the Step 3 Step 6 of Item 9 5 Follow the Step 1 Step 6 of Item 9 7 Follow the Step 1 Step 7 of Item 9 8 Step 1 Remove 2 screws at USB unit 34 SA AK270EB SA AK270EG ...

Page 35: ...p 4 Unsolder the solder point to remove USB P C B 9 10 Disassembly of Music Port P C B Follow the Step 1 Step 5 of Item 9 4 Follow the Step 3 Step 5 of Item 9 5 Follow the Step 1 Step 6 of Item 9 7 Step 1 Remove 2 screws at Music Port P C B Step 2 Release 2 catches Step 3 Lift up the Music Port P C B 35 SA AK270EB SA AK270EG ...

Page 36: ... 1 to 3 Step 2 Remove CD Lid as arrow shown Note Please ensure that the spring is assembly at right position 9 12 Disassembly of Deck Mechanism Unit Follow the Step 1 Step 5 of Item 9 4 Follow the Step 3 Step 5 of Item 9 5 Follow the Step 1 Step 6 of Item 9 7 Step 1 Remove 4 screws at Deck Mechanism Step 2 Push the lever upward as arrow shown to open the cassette lid ass y 36 SA AK270EB SA AK270EG...

Page 37: ... 1 Step 6 of Item 9 7 Follow the Step 1 Step 3 of Item 9 12 Step 1 Remove 3 screws Step 2 Desolder 2P wires at the motor terminal Step 3 Detach 9P cable at connector CP1902 on Deck P C B Step 4 Detach connector CP1301 from the Head connector 9 14 Disassembly of Deck Mechanism Follow the Step 1 Step 5 of Item 9 4 Follow the Step 3 Step 5 of Item 9 5 37 SA AK270EB SA AK270EG ...

Page 38: ...lacement of Pinch Roller and Head Block Step 1 Release catch to remove the pinch roller F Assy Step 2 Release the catches to remove the head connector Step 3 Remove 2 screws at the Deck Mehcanism unit Step 4 Remove head block 9 14 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 38 SA AK270EB SA AK270EG ...

Page 39: ...39 SA AK270EB SA AK270EG ...

Page 40: ...B 9 16 Disassembly of Cassette Lid Follow the Step 1 Step 5 of Item 9 4 Follow the Step 3 Step 5 of Item 9 5 Follow the Step 1 Step 6 of Item 9 7 Follow the Step 1 Step 3 of Item 9 12 Step 1 Remove the spring Step 2 Push the cassette lid in the direction of arrows 9 17 Rectification for Tape Jam Problem Follow the Step 1 Step 5 of Item 9 4 Step 1 If a cassette tape cannot be removed from the deck ...

Page 41: ...ep 1 Step 9 of Item 9 5 Important notes Ensure all the trays are in the STOCK position before proceeding to the disassemble of traverse unit For procedures to set the trays in STOCK position please refer to 5 3 Setting the Tray In STOCK position for CRS1 Service Manual order no MD0509368C0 Step 1 Press and hold the plunger lever and rotate the gear as arrows shown until it stop 41 SA AK270EB SA AK...

Page 42: ...nit as arrow shown Assembly of Traverse Unit Step 1 Turn over the unit and install the traverse unit Step 2 Push the traverse slide plate as arrow shown to lock the traverse unit 9 19 Disassembly of D Amp P C B Follow the Step 1 Step 5 of Item 9 4 Follow the Step 3 Step 7 of Item 9 5 Step 1 Detach 17P FFC cable at connector CN5050 at D Amp P C B 42 SA AK270EB SA AK270EG ...

Page 43: ...ector CN5500 at D Amp P C B Step 3 Remove 2 screws at D Amp P C B chassis support Step 4 Remove 4 screws at the rear panel Step 5 Lift up the D Amp P C B together with the chassis support as arrow shown 43 SA AK270EB SA AK270EG ...

Page 44: ... Step 2 Desolder pins of the Digital Power Amp IC IC5000 on the reverse side of D Amp P C B Step 3 Remove 1 screw Step 4 Remove TR Spring in the direction of arrow shown Step 5 Remove Digital Power Amp IC IC5000 from the heat sink unit A Caution Handle the heat sink power unit A with caution due to its high temperature after prolonged use Touching it may lead to injuries 9 20 1 Assembly of Digital...

Page 45: ...he Step 1 Step 5 of Item 9 19 Step 1 Detach 27P FFC cable at connector CN2806 at Main P C B Step 2 Detach 21P FFC cable at connector CN3200 at Main P C B Step 3 Detach 22P FFC cable at connector CN2011 at Main P C B Step 4 Detach 10P FFC cable at connector CN2807 at Main P C B Step 5 Detach 2P wired cable at connector CN2001 at Main P C B Step 6 Detach 11P wires cable at connector CN5802 at SMPS P...

Page 46: ...tage Regulator IC IC2731 from the heat sink Caution Handle the heat sink with caution due to its high temperature after prolonged use Touching it may lead to injuries 9 22 1 Assembly of Voltage Regulator IC IC2731 Step 1 Apply grease to heat sink Step 2 Fix and screw the Voltage Regulator IC IC2731 to the heat sink Note Ensure the Voltage Regulator IC IC2731 is tightly screwed to the heat sink 9 2...

Page 47: ... Switch Q2751 is tightly screwed to the heat sink 9 24 Disassembly of SMPS P C B Follow the Step 1 Step 5 of Item 9 4 Follow the Step 1 Step 7 of Item 9 5 Follow the Step 1 Step 5 of Item 9 19 Step 1 Detach 8P wires at connector CN5802 at SMPS P C B Step 2 Remove 4 screws at SMPS P C B Step 3 Lift up the SMPS P C B as arrow shown Step 4 Flip the SMPS P C B and desolder 2 wires pins red and black N...

Page 48: ...C5701 from the heat sink A Caution Handle the heat sink A with caution due to its high temperature after prolonged use Touching it may lead to injuries Note Refer to the diagrams of SMPS P C B Item 19 6 for location of the part 9 25 1 Assembly of Switch Regulator IC IC5701 Step 1 Apply grease to the heat sink A Step 2 Fix and screw the switch regulator IC IC5701 to the heat sink A Special Note Ens...

Page 49: ...m the heat sink A Caution Handle the heat sink A with caution due to its high temperature after prolonged use Touching it may lead to injuries Note Refer to the diagrams of SMPS P C B Item 19 6 for location of the part 9 26 1 Assembly of Switch Regulator Diode D5702 Step 1 Apply grease to the heat sink A Step 2 Fix and screw the switch regulator diode D5702 to the heat sink A Special Note Ensure t...

Page 50: ...e D5801 Step 3 Remove the regulator diode D5801 from the heat sink unit C Caution Handle the heat sink unit C with caution due to its high temperature after prolonged use Touching it may lead to injuries Note Refer to the diagrams of SMPS P C B Item 19 6 for location of the part 9 27 1 Assembly of Regulator Diode D5801 Step 1 Apply grease to the heat sink unit C Step 2 Fix and screw the regulator ...

Page 51: ...to injuries Note Refer to the diagrams of SMPS P C B Item 19 6 for location of the part 9 28 1 Assembly of Regulator Diode D5802 Step 1 Apply grease to the heat sink unit C Step 2 Fix and screw the regulator diode D5802 to the heat sink unit C Special Note Ensure the regulator diode D5802 is tightly screwed to the heat sink unit C Step 3 Solder pins of the regulator diode D5802 on the reverse side...

Page 52: ...ly grease to the heat sink unit C Step 2 Fix and screw the regulator diode D5803 to the heat sink unit C Special Note Ensure the regulator diode D5803 is tightly screwed to the heat sink unit C Step 3 Solder pins of the regulator diode D5803 on the reverse side of SMPS P C B Special Note Ensure pins of the regulator diode D5803 are properly seated and soldered on SMPS P C B 9 30 Disassembly of AC ...

Page 53: ... P C B Step 6 Flip over the AC Inlet P C B and desolder 2 wires pins red and black Caution Remember to use tie wraps to tie red black wires between AC Inlet P C B to the chassis Note During reassembling procedures ensure the P C B is seated properly at the locators 53 SA AK270EB SA AK270EG ...

Page 54: ...2806 at Main P C B Step 4 Detach 21P FFC cables at connector CN3200 at Main P C B Step 5 Detach 22P FFC cables at connector CN2011 at Main P C B Step 6 Detach 10P FFC cables at connector CN2807 at Main P C B Step 7 Detach 2P wired cable at connector CN2001 at Main P C B Step 8 Remove the front panel unit 10 Service Fixture and Tools Service Tools Extension FFC A Main P C B CN2341 D Amp P C B CN505...

Page 55: ...05 at Main P C B Step 12 Connect 27P FFC cable at connector CN2806 at Main P C B Step 13 Connect 21P FFC cable at connector CN3200 at Main P C B Step 14 Connect 10P FFC cable at connector CN2807 at Main P C B Step 15 Connect 22P FFC cable at connector CN2011 at Main P C B Step 16 Connect 2P wired cable at connector CN2001 at Main P C B 55 SA AK270EB SA AK270EG ...

Page 56: ...ep 1 Step 2 of item 11 2 Step 1 Detach 17P FFC cable at connector CN5050 at D Amp P C B Step 2 Detach 8P wires cable at connector CN5500 at D Amp P C B Step 3 Remove 2 screws at chassic supports Step 4 Remove 4 screws at the rear panel Step 5 Lift up the D Amp P C B together with the chassic support as arrow shown 56 SA AK270EB SA AK270EG ...

Page 57: ...iginal cable with extension cable REXX0683 8P cable from H5801 to CN5500 Step 11 Connect extension cable REEX0930 17P cable from CN2341 to CN5050 Step 13 Check and repair D Amp P C B according to the diagram shown 11 4 Checking and Repairing of AC Inlet P C B SMPS P C B Follow Step 1 Step 7 of item 11 2 Follow Step 1 Step 5 of item 11 3 Step 1 Detach wire connector at connector CN5802 at SMPS P C ...

Page 58: ... screws at AC Inlet P C B Step 4 Cut 2 tie wraps onto wires Step 5 Remove 1 screw at the rear panel Step 6 Move the rear panel slightly backward as arrow shown lift up the AC Inlet P C B together with the SMPS P C B 58 SA AK270EB SA AK270EG ...

Page 59: ...ep 9 Connect 14P cable at the connector CN2805 on Main P C B Step 10 Attach original cable with extension cable REXX0683 8P cable from H5801 to CN5500 Step 11 Attach original cable with extension cable REXX0680 11P cable from CN2701 to CN5802 Step 12 Connect extension cable REEX0930 17P cable from CN2341 to CN5050 59 SA AK270EB SA AK270EG ...

Page 60: ...Step 13 Service AC Inlet P C B SMPS P C B respectively 60 SA AK270EB SA AK270EG ...

Page 61: ...ing 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 at FF mode ON approx 50msec Repeat the operation FWD PLAY Note Other operation may start if a timing of supplying the plunger power is missed 12 1 1 Connection Status between Mechanism and Power Supply Motor Plunger 12 1 2 Operative Parts of ...

Page 62: ... jack output jig Fig 8 13 1 2 Setting of Unit VOLUME MAX 13 1 3 Preparations 1 Apply under 9 Assembling and Disassembling 2 Remove 4 screws from the mechanism unit to disassemble under 9 13 Disassembly of Deck Mechanism Unit 3 Connect the headphone jack output jig Fig 8 to headphone jack Fig 8 Fig 9 13 1 4 Tape Speed Adjustment Normal speed adjustment only during forward playback 62 SA AK270EB SA ...

Page 63: ...on 3 Insert a normal blank cassette tape QZZCRA 4 While pressing and holding down REC button press TAPE 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 20 3mV Fig 12 13 1 6 Bias Frequency Check 1 Connect a digital frequency counter Fig 13 2 Set the function to TAPE po...

Page 64: ...ll 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 14 1 Voltage Measurement 14 1 1 CD Servo P C B Tact Switch P C B 64 SA AK270EB SA AK270EG ...

Page 65: ...14 1 2 Main P C B 65 SA AK270EB SA AK270EG ...

Page 66: ...14 1 3 SMPS P C B D Amp P C B Panel P C B 66 SA AK270EB SA AK270EG ...

Page 67: ...14 1 4 Deck P C B Deck Mechanism P C B USB P C B 67 SA AK270EB SA AK270EG ...

Page 68: ...14 2 Waveform Chart 68 SA AK270EB SA AK270EG ...

Page 69: ...CN2701 16 2 17 1 CN3601 10 1 1 11 H DECK MECHANISM P C B SOLDER SIDE G DECK P C B SOLDER SIDE PL PL SOLENOID CS971 1 9 WR1903 2 1 MOTOR CP1902 9 1 CN1305 2 20 1 21 CP1301 TO R P HEAD 4 2 5 1 J D AMP P C B SOLDER SIDE D TACT SWITCH P C B SOLDER SIDE CN5500 JK5001 CN5050 16 2 17 1 1 8 FRONT SPEAKERS J6501B BLK CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE PLEASE DO NOT TOUCH THIS P C B RED 1 8 K SM...

Page 70: ...SA AK270EB SA AK270EG 70 ...

Page 71: ... 41 49 48 45 43 32 34 44 22 21 24 25 23 29 30 66 57 AVSS1 TX SRVMON1 SRVMON0 NTEST NRST AVDD2 AVSS2 ARFFB ARFF ARFOUT ARFDC RFOUT RFIN CENV CTRCRS OSCIN VREF RFENV PC SPOUT TRVP TRP FOP PD A B C D E F NSRVMONON REGON MDATA ARFIN IREF DSLF PLLF PLLFO TXTCK SBCK PRAMVDD33 PRAMVSS33 D0 D15 A0 A11 BA0 BA1 TXTD DQSY SUBC TXNCLDCK BLKCK FLAG 65 71 20 18 83 92 94 99 1 7 11 15 16 17 NWE NCAS 8 9 63 64 62 ...

Page 72: ... SWITCH SWITCH Q2359 Q2312 SWITCH Q2311 SWITCH QR2317 Q2735 MUTE CONTROL SWITCH IN L1 36 IN R1 4 38 IN L3 2 IN R3 40 IN L4 52 IN R4 37 IN L2 3 IN R2 IC2803 C1AB00002885 ASP IC 20 19 SCL SDA ASP_CLK ASP_DA MUTEA 6 33 PRE IN R RRE IN L 7 REC R 34 REC L 22 L OUT 17 R OUT 5 6 3 2 1 7 IC2804 C0AABB000125 OPAMP MUSIC PORT TAPE CD TUNER TO DECK FROM CD SERVO TO PANEL TO TUNER FROM PANEL FROM SMPS FROM DE...

Page 73: ...2812 PCONT SWITCH Q2763 Q2761 Q2751 SWITCH SWITCH SWITCH 3 5 2 1 CTRL OUT IN GND Q2937 CD SUPPLY CTRL SWITCH Q2970 SWITCH Q2936 RESET MICRO P SWITCH Q2012 SWITCH Q2011 SWITCH Q2772 Q2711 Q2771 SWITCH SWITCH SWITCH FROM USB FROM DEBUG USING FROM PANEL USB_RST CLK 74 29 USB_IRQ WR START 61 TERR 60 MMOD0 59 VERR 9 EFP_CNVSS 12 EFP_RESET 31 IPOD_TXD 32 IPOD_RXD 34 BUSY XIn Xout USB_SCL USB_SDA 33 35 3...

Page 74: ...01B 3 J6501A J6501B 1 J6501A J6501B 6 J6001B J6001 1 J6501B H6501A 5 REMOTE SENSOR TO MAIN 2 2 TO MIC TO TACT SWITCH TO MAIN 2 2 TO MAIN 1 2 TO MAIN 2 2 TO MAIN 1 2 TO MAIN 2 2 TO MAIN 2 2 TACT SWITCH CIRCUIT TACT SWITCH P C B FL6601 A2BB00000171 FL DISPLAY IC6601 C0HBB0000057 FL DRIVER 14 29 25 40 1 44 FL1 G1 G12 S1 S12 SG1 SG16 FL2 31 42 5 16 7 9 8 DIN STB CLK JK6810 MUSIC PORT JK6800 HEADPHONE ...

Page 75: ... MAIN 2 2 TO MAIN 2 2 RIGHT SPEAKER JK5001 SPEAKER LEFT SPEAKER X5501 X5500 IC5000 C1BA00000487 AUDIO DIGITAL POWER AMP 2 3 IN1 OUT1 10 OUT2 14 VDDA1 4 VDDA2 20 VSSA2 18 VSSA1 6 IN1 21 22 IN2 IN2 23 MODE 1 OSC Q5603 IC5500 C0JBAB000902 INVERTER GATE CLOCK GENERATOR 1 8 SWITCH SWITCH Q5604 SWITCH Q5101 Q5102 DC DETECT Q5601 L5000 L5001 L5002 1A 11 5A 3 2A 4Y IC5501 C0JBAF000716 D TYPE FLIP FLOP 1 0...

Page 76: ...9 MIP4110MSSCF T5701 TO D AMP TO MAIN 2 2 L5703 L5701 F1 P5701 AC INLET CIRCUIT AC INLET P C B D5701 7 8 2 FB S D VCC 5 4 4 6 3 A 1 C FB VCC D 1 SWITCH Q5721 SYNC SWITCH PC5702 INVERTER Q5898 FEEDBACK PC5799 CURRENT LIMITING SWITCH CURRENT LIMITING SWITCH Q5720 FEEDBACK CONTROL Q5802 SWITCH Q5722 D5801 SWITCH D5802 FEEDBACK PC5720 SWITCHING REGULATOR IC5701 C5HACYY00003 FEEDBACK PC5701 INVERTER DC...

Page 77: ... 57 CD_CLK 56 48 47 VERR 50 46 OSC0 OSC1 4 USBD 6 USBD I2C_REQ WR_START I2C_CLK WR_END I2C_DATA ERROR X900 D971 S971 MODE S972 HALF S975 RECINH_F IC1001 AN7326K DECK R P IC IC1000 C1AA00000612 ANALOG SWITCH IC971 CNB13030R2AU PHOTO INTERUPTOR L1301 Q1317 BEAT PROOF LEVELSWITCH Q1316 SWITCH Q1314 SWITCH Q1315 SWITCH Q1312 SWITCH Q1304 REC H SWITCH Q1303 SWITCH Q1309 Q1310 BIAS SWITCH 9 22 15 8 1 3 ...

Page 78: ...SA AK270EB SA AK270EG 78 ...

Page 79: ... 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 In case of AC rated voltage Capacitor the part no and values will be indicated in the Schematic Diagram AC rated volt...

Page 80: ...80 SA AK270EB SA AK270EG ...

Page 81: ...DRIVE IC MLD 7 5V MCLK MDATA RST STAT BLKCK PGND 3 3V ST_IN TX LD SW DGND ST_CLK AGND AGND DGND ST_REQ RESET_SW LCH OUT RCH OUT LOADING A9 A11 TRP TRVP BA1 A0 A2 A4 A6 A8 A7 A5 A3 A1 A10 NWE BA0 PC NRAS NCAS PRAMVDD15 PRAMVDD33 PRAMVSS33 SPOUT F A B E GND T F F T LPD VREF LD GND GND GUARD GND GUARD LD VCC 6 5 8 9 10 12 11 7 2 1 4 3 14 13 16 15 PVCC1 D4 D1 PVCC2 NC NC NC NC NC NC NC IN2 NC PC1 PC2 ...

Page 82: ...0k C2202 0 082 C2305 R2302 68k Q2312 R2312 470 C2312 6 3V1 R2303 C2307 0 082 C2201 4 7 C2196 0 68 C2192 C2194 R2184 R2186 5 6k C2046 C2066 Q2011 Q2012 C2006 C2026 C2170 33 K2181 0 C2005 C2045 C2025 Q2011 Q2012 B1GBCFJJ0051 SWITCH C2065 C2190 C2191 R2181 C2183 R2182 C2184 IC2803 IC2803 C1AB00002885 ASP IC R2183 C2185 0 47 C2187 C2189 C2023 C2021 1 R2023 7 5k C2022 1 R2022 5 6k R2024 7 5k C2024 100P...

Page 83: ... R2360 3 3k Q2360 R2362 3 3k R2338 27k R2346 12k R2333 2 7k R2335 10k C2343 0 01 R2337 27K Q2335 Q2335 Q2336 B1ABGC000005 SWITCH R2345 12k C2341 0 22 C2345 0 R2343 6 8k C2344 0 01 R2334 2 7k C2342 0 22 C2346 0 R2344 6 8k CN2341 R2336 10k Q2336 MOD_DA Fan FHOP MUTE F_SW MODE 2 MUTE S_C MODE 1 DC_DET FRONTL AGND FRONT R SIGNAL A_GND Q2359 TO D AMP CIRCUIT CN5050 IN SCHEMATIC DIAGRAM 12 AGND AGND AGN...

Page 84: ...809 R2611 R2610 R2830 R2812 47k C2813 3 3 Q2812 B1GBCFLL0037 DECK SUPPLY PCONT CONTROL SWITCH C2613 220 C2812 1 D2812 C2611 R2813 1M R2819 R2829 R2815 X2815 X2910 X2910 C2960 R2837 R2835 R2839 R2841 R2845 R2844 R2843 R2838 R2848 R2836 R2842 R2846 R2638 R2647 R2644 R2854 R2853 R2852 R2861 R2855 R2858 R2857 R2856 R2636 3 9K R2635 3 9K R2620 22k R2828 R2827 R2820 10k R2833 R2818 R2865 R2866 R2863 R28...

Page 85: ...701 C0DAAYY00042 DC DC CONVERTER DZ2702 C2703 6 3V820 R2754 100 D2753 MAZ810000L C2753 0 01 R2753 1K C2751 0 01 C2766 0 01 C2765 10 C2761 0 01 Q2761 B1BCCG000002 SWITCH C2762 0 01 R2762 1K FP2901 0 4A C2900 35V33 D2908 B0EAMM000057 D2708 D2708 D2707 B0EAKM000117 R2711 1K D2707 R2713 2 7k D2901 B0BC035A0007 C2707 6 3V100 R2902 47 T2900 G4D1A0000117 SWITCHING TRANSFORMER T2900 C2901 3900P Q2900 B1BA...

Page 86: ... R6620 R6619 R6622 C6612 330p C6611 330p C6613 R6205 4 7K C6609 0 1 S6204 R6106 4 7k S6205 S6206 R6107 6 8k R6207 15K R6206 6 8K S6207 R6618 220 S6106 IC6601 C0HBB0000057 IC6601 C6938 0 1 R6300 10K J6501A C6608 0 1 1 3 2 1 1 6 7 5 9 12 13 10 11 18 25 26 23 24 27 27 2019 2221 16 14 15 17 8 2 4 3 43 5 2 1 8 39 35 31 27 28 25 26 30 29 34 32 33 38 36 37 42 40 41 13 12 15 16 14 9 11 10 23 24 18 19 17 2...

Page 87: ...863 0 1 C6813 330P C6814 330P HP_SW HP_R HP_L HP_GND DGND_C MP_L MP_SW MP_R MUSIC PORT HEADPHONE DGND EJECT PA_IN_R PA_IN_GND PA_IN_L PA_SW HP_SW HP_R HP_GND HP_L SCHEMATIC DIAGRAM 7 TACT SWITCH CIRCUIT MUSIC PORT CIRCUIT SA AK270EB EG TACT SWITCH MUSIC PORT REMOTE SENSOR CIRCUIT MAIN SIGNAL LINE MUSIC PORT SIGNAL LINE 1 2 3 4 5 6 7 8 D6511 B3AAA0000884 R6512 220 C6512 1000P R6511 180 Q6511 B1GBCF...

Page 88: ...p 50V2 2 1500p 22K 16V10 0 01 0 01 22K 270P 1500P 50V0 1 10K 0 01 10K 50V2 2 16V10 0 033 470 0 033 4 7K 22k 15K 12K 1000p 2200p 2200p 50V1 10K 1 5K 16V100 4 7k 10K 4 7 4700p 0 047 4 7K 270K 12K 16V47 3300p R1309 Q1304 R1106 C1210 R1206 R1209 R1110 R1210 R1109 Q1315 Q1315 R1343 R1344 R1342 R1374 R1345 R1341 Q1314 Q1314 CN1305 R1314 Q1303 C1324 R1338 R1334 IC1000 IC1000 C1AA00000612 ANALOG SWITCH C1...

Page 89: ...AF1020020 1000P C5704 F1BAF1020020 1000P ZJ5701 3 2 ZJ5702 2 3 4 1 L5703 ELF22V020A ERZV10V511CS 775V25A C5701 F0CAF334A087 0 33 ZA5701 ZA5702 F1 1 R5701 4 7 RED BLK SMPS CIRCUIT IN SCHEMATIC DIAGRAM 14 TO DECK CP1902 ON SCHEMATIC DIAGRAM 8 3 4 1 2 3 2 6 7 4 5 1 9 8 39K 820 VREF PHOTO VREF HALF 2 PL PL GND MODE HALF 1 IC971 CNB13030R2AU PHOTO INTERUPTOR S975 VRECINH F S971 MODE S972 HALF CS971 R97...

Page 90: ...0000045 LB932 J0JAC0000021 6 5 8 9 11 12 10 18 15 17 16 20 19 13 14 7 2 1 4 3 22 21 P901 0 R906 0 1 C911 0 1 C912 23 58 45 44 47 48 46 30 31 32 43 40 41 35 37 36 33 34 39 38 42 28 25 26 24 27 29 55 56 50 51 49 53 54 52 57 62 63 61 19 18 20 3 2 5 4 6 8 7 1 64 15 16 9 13 10 12 11 14 17 22 21 59 60 IC900 MNZSFB5KJM2 USB CONTROLLER IC 0 1 C913 DGND D5V NRST P01 P04 DGND P03 STCLK P91 SBIO P81 D8 P73 D...

Page 91: ... 3 9 11 13 14 12 10 7 8 IC5501 C0JBAF000716 R5505 100 47P C5558 5 6 4 1 2 3 9 11 13 14 12 10 7 8 C0JBAB000902 INVERTER GATE CLOCK GENERATOR D TYPE FLIP FLOP IC5500 OSC SW 5V SW 5V MOD_DA MUTE_F DC_DET Q5101 B1ABCF000176 R5110 6 8K 1 2K R5023 AGND 0 1 C5033 B1ABCF000176 Q5102 MODE2 CD2 D1 SWITCH SWITCH Q5601 B1ABCF000176 SWITCH DC DETECT DC DETECT GND D2 SD1 SD2 6Y 5A 6A VCC O2 4Y CP2 VCC 4A 5Y 3A ...

Page 92: ...DDP 0 1 C5018 C5030 220P 3 2 1 ZJ5400 C5445 C5004 0 47 R5002 5 6K C5002 0 47 5 6K R5000 C5001 1000P 330P C5006 C5025 0 1 C5024 0 1 10 R5011 OSC IN _FR IN _FR IN _FL IN _FL VSSA0 C5014 0 68 C5015 0 68 R5006 22 R5007 22 R5031 5 6K C5016 0 1 R5030 5 6K 0 1 C5017 2 4 3 1 L5000 G0A150L00003 C5000 1000P 5 6K R5003 0 47 C5005 1000P C5032 R5008 100 C5007 330P R5001 5 6K C5003 0 47 2 4 3 1 L5002 L5001 220P...

Page 93: ...10 D5725 2 2K R5808 4 3 1 2 B3PBA0000402 PC5720 R5817 330 R5810 330 4 3 1 2 B3PBA0000402 PC5701 1 5K R5811 0 1 C5825 1 5K R5816 8 2K R5812 MAZ80750ML D5806 SYS6V 30V_SENSE 30V_SENSE 2 7K R5815 24K R5813 Q5802 B1ABCF000176 120 R5724 DC_18V 3 1 2 B0HBSM000043 D5802 13V FAN_18V 25V470 C5816 B0EAMM000057 D5805 D5804 B0EAMM000057 11 13 14 12 10 8 6 5 7 9 18 15 16 17 1 4 3 2 C5813 35V470 R5722 1K C5722 ...

Page 94: ...6V220 D5730 MA2J11100L D5798 B0HAMP000094 390K R5704 390K R5705 R5798 10 C5798 50V56 4 3 1 2 PC5702 B3PBA0000402 4 3 1 2 B3PBA0000402 PC5799 100 R5897 Q5898 IC5899 C0DAEMZ00001 B1ABCF000176 R5896 100K C5897 0 1 2 2K R5890 1K R5894 B0EAMM000057 D5896 B0HAMP000094 D5793 C5790 2200P R5891 33K 200K R5786 9 10 7 8 1 6 ETS19AB256AG BACKUP TRANSFORMER T5751 4 7K R5892 100 R5895 0 1 C5898 A R 3 2 C 1 INVE...

Page 95: ...19 Printed Circuit Board Note Circuit board diagrams may be modified at any time with the development of new technology SA AK270EB SA AK270EG 95 ...

Page 96: ...64 C7165 W7024 W7023 R7111 C7264 R7336 C7339 R7349 R7332 W7002 W7009 W7004 W7003 W7001 C7243 C7670 TP3 TP31 TP12 TP7 TP8 TP9 TP16 W7028 W7010 R7254 W7008 C7253 W7006 W7029 TP1 TP88 TP86 TP87 VREF TP28 W7007 TP4 TP17 TP14 TP24 R7221 R7212 C7230 W7005 LB7263 LB7262 LB7264 IC900 L900 IC951 0101C 0101C C915 C906 X900 C953 P903 C904 C931 P901 0101C 1 0101C 1 USB LB930 LB852 R955 C952 R954 LB952 R972 C9...

Page 97: ...2620 R2637 R2638 R2644 R2647 W2727 R2832 R2833 R2835 R2836 R2837 R2838 R2839 R2841 R2842 R2843 R2845 R2846 R2848 IC2951 NOT SUPPLIED C2951 C2953 R2951 R2952 R2953 R2889 R2689 R2675 R2679 R2674 R2852 R2853 R2854 R2855 R2856 R2857 R2858 R2861 R2863 R2865 R2866 W2758 Q2937 R2874 R2875 R2876 R2877 R2685 R2881 R2886 R2890 R2892 R2893 R2894 R2895 R2897 C2895 C2897 R2600 R2609 R2003 R2771 R2772 Q2772 Q27...

Page 98: ... W6045 W6546 W6547 W6011 W6007 W6006 W6034 W6010 W6038 W6037 W6036 W6035 W6033 W6024 W6030 W6002 W6004 W6548 W6008 W6009 W6005 W6027 W6046 W6040 W6041 W6042 W6025 W6026 W6039 W6047 W6032 W6020 W6012 W6019 C6671 W6028 W6543 W6542 K6601 K6602 K6603 K6641 S6106 TAPE REC K6006 K6004 W6561 W6572 W6575 C6601 Z6601 C6616 C6512 R6511 Q6511 R6512 R6503 R6502 R6501 R6301 R6302 R6303 R6304 R6305 R6306 R6307 ...

Page 99: ...1207 C1104 R1104 C1121 R1343 R1344 R1345 R1342 R1305 R1328 R1332 D1301 R1335 R1338 R1334 R1329 C1312 C1316 C1221 R1401 R1318 R1404 R1405 R1403 R1201 C1205 C1204 C1371 R1371 C1223 R1302 R1101 R1303 C1303 C1122 C1302 C1105 R1103 C1107 R1102 R1210 R1204 R1304 R1105 R1380 R1402 R1106 R1209 R1109 Q1304 R1314 C1315 R1331 C1102 C1222 R1202 C1123 R1341 R1374 Q1314 R1206 C1210 R1205 R1110 R1063 C1110 R1064...

Page 100: ...5151 C5150 C5445 W5780 K5302 W5007 C5014 C5015 C5040 C5133 C5510 C5511 CN5050 CN5500 IC5000 JK5001 K5003 K5011 K5012 K5013 K5017 K5018 K5301 L5001 L5002 R5510 X5500 X5501 ZJ5400 ZJ5410 W5067 W5066 W5068 W5061 W5060 W5005 W5043 W5051 W5052 W5039 W5055 W5064 W5023 W5019 W5053 W5056 W5021 W5050 W5054 W5038 W5012 W5003 W5024 W5022 W5020 W5013 W5063 W5045 W5046 W5044 W5047 W5049 W5048 W5035 W5033 W5006...

Page 101: ...13 R5815 R5816 R5812 R5811 D5806 C5825 QR5801 C5826 Q5802 R5801 D5807 R5800 R5825 C5831 C5832 C5812 C5800 C5815 R5702 R5834 R5832 R5703 C5790 C5794 D5809 W5803 W5804 W5805 W5806 C5805 C5808 C5824 CN5802 T5751 IC5701 C5713 D5702 D5701 D5801 D5802 D5803 C5813 W5725 T5701 C5730 D5805 D5896 C5791 D5798 D5793 C5816 C5899 BACKUP TRANSFORMER C5703 W5729 K5711 C5797 C5798 IC5799 W5734 C5700 ZJ5803 R5726 C...

Page 102: ...SA AK270EB SA AK270EG 102 ...

Page 103: ...Z82400HL 1 4 8 5 C0AABB000125 8P 2SC3940A0A B1AAJC000019 B1BABK000001 B1BACD000018 AN7326K 22P 1 B C E 2SD09650RA B1ACKD000006 B1AAGC000006 B C E C0DBZGC00067 5P 1 3 4 5 2 A Ca Cathode Anode A Ca Cathode Anode A Ca B0EAKM000117 B0JAME000114 B0EAMM000057 B0HAMP000094 B0BC019A0007 B0BC035A0007 B0BC2R4A0006 B0BC6R100010 23 1 C0JBAB000902 14P C0JBAF000716 14P C1BB00001137 16P C0DABFC00002 3P C0DAEMZ00...

Page 104: ...ute On 52 DECK REC I O H when record circuit is operating 53 VOL_LED O Volume LED 54 FL_CLK O Serial Clock to FL driver 55 FL_DOUT O Serial Data to FL driver 56 FL_CS O FL driver CS 57 BASS_JOG1 I Bass Jog 1 Pin No Mark I O Function 58 BASS_JOG2 I Bass Jog 2 59 VERR I O verify error for USB version up using CD 60 MMOD0 I O Micon mode switching for USB version up 61 TERR I O Time Out Error for USB ...

Page 105: ...t Output 9 24 S11 O Segment Output 8 25 S12 O Segment Output 7 26 S13 O Segment Output 6 27 S14 O Segment Output 5 28 S15 O Segment Output 4 29 S16 O Segment Output 3 30 VEE Voltage Supply 31 S17 O Segment Output 2 32 G11 O Segment Output 1 33 G10 O Grid Segment Output 1 34 G9 O Grid Segment Output 2 35 G8 O Grid Segment Output 3 36 G7 O Grid Segment Output 4 37 G6 O Grid Segment Output 5 38 G5 O ...

Page 106: ...106 SA AK270EB SA AK270EG ...

Page 107: ...22 Exploded Views 22 1 Cabinet Parts Location SA AK270EB SA AK270EG 107 ...

Page 108: ...SA AK270EB SA AK270EG 108 ...

Page 109: ...22 2 Deck Mechanism Parts Locations RAA4407 S SA AK270EB SA AK270EG 109 ...

Page 110: ...22 3 Packaging SA AK270EB SA AK270EG 110 ...

Page 111: ...12TFJ SCREW M 64 XTW3 8TFJ SCREW M 65 REXX0680 11P WIRE MAIN SMPS M 67 RWJ1108055SS 8P WIRE PANEL TACT SW M 68 REXX0684 PRIMARY WIRE 1 BLACK M 69 REXX0685 PRIMARY WIRE 2 RED M 72 REXX0683 8P WIRE SMPS DAMP M CASSETTE DECK 101 REDX0001 R P HEAD BLOCK SUB ASSY M 103 RDG0300 REEL BASE GEAR M 104 RDG0301 WINDING RELAY GEAR M 105 RDK0026 4 MAIN GEAR M 107 RDV0033 4 WINDING BELT M 108 RDV0064 1 CAPSTAN ...

Page 112: ...C USB CONTROLLER M IC951 C0DBZYE00002 IC VOLTAGE REGULATOR M IC971 CNB13030R2AU IC PHOTO INTERUPTOR M IC1000 C1AA00000612 IC ANALOG SWITCH M IC1001 AN7326K IC DECK R P M IC2701 C0DAAYY00042 IC DC DC CONVERTER M IC2731 C0CAAKG00046 IC DC DC CONVERTER M IC2741 C0DBZGC00067 IC 3 3V VOLTAGE REGULATOR M IC2801 RFKWAK270PL IC MICRO PROCESSOR M IC2803 C1AB00002885 IC AUDIO SOUND PROCESSOR M IC2804 C0AABB...

Page 113: ...scription Remarks VR6630 K9AA024A0008 VOLUME ENCODER M SWITCHES S971 K0J1BB000017 SW MODE M S972 K0J1BB000021 SW HALF M S975 K0J1BB000021 SW RECINH_F M S6100 EVQ21405RJ SW POWER M S6101 EVQ21405RJ SW DISPLAY M S6106 EVQ21405RJ SW TAPE REC M S6108 EVQ21405RJ SW D BASS M S6200 EVQ21405RJ SW OPEN CLOSE M S6201 EVQ21405RJ SW MUTLI CHANGE M S6202 EVQ21405RJ SW SINGLE CHANGE M S6203 EVQ21405RJ SW CD1 M ...

Page 114: ...E2001 K9ZZ00001279 EARTH PLATE M ZJ5400 K4CZ01000027 EARTH PLATE M ZJ5410 K4CZ01000027 EARTH PLATE M ZJ5701 K4CZ01000027 EARTH PLATE M ZJ5702 K4CZ01000027 EARTH PLATE M ZJ5801 K4CZ01000027 EARTH PLATE M ZJ5803 K4CZ01000027 EARTH PLATE M CHIP JUMPERS L2612 D0GBR00JA008 0 1 16W M LB7262 D0GBR00JA008 0 1 16W M LB7263 D0GBR00JA008 0 1 16W M LB7264 D0GBR00JA008 0 1 16W M W2702 D0GDR00JA017 0 1 10W M W2...

Page 115: ...B153JA008 15K 1 16W M R1329 D0GB472JA008 4 7K 1 16W M R1330 ERD2FCVJ4R7T 4 7 1 4W M R1331 D0GB472JA008 4 7K 1 16W M R1332 D0GB103JA008 10K 1 16W M R1333 ERD2FCVJ4R7T 4 7 1 4W M R1334 D0GB223JA008 22K 1 16W M R1335 D0GB152JA008 1 5K 1 16W M R1337 D0GB103JA008 10K 1 16W M R1338 D0GB472JA008 4 7K 1 16W M R1341 D0GB471JA008 470 1 16W M R1342 D0GB473JA008 47K 1 16W M R1343 D0GB332JA008 3 3K 1 16W M R13...

Page 116: ...6W M R2818 D0GB102JA008 1K 1 16W M R2819 D0GB102JA008 1K 1 16W M R2820 D0GB103JA008 10K 1 16W M Ref No Part No Part Name Description Remarks R2821 D0GB101JA008 100 1 16W M R2822 D0GB101JA008 100 1 16W M R2823 D0GB101JA008 100 1 16W M R2826 D0GB101JA008 100 1 16W M R2827 D0GB101JA008 100 1 16W M R2828 D0GB101JA008 100 1 16W M R2829 D0GB101JA008 100 1 16W M R2830 D0GB101JA008 100 1 16W M R2832 D0GB1...

Page 117: ...SJ910E 91 2W M R5825 ERJ3GEYJ102V 1K 1 10W M Ref No Part No Part Name Description Remarks R5832 ERJ1TYJ222U 2 2K 1W M R5834 ERJ1TYJ222U 2 2K 1W M R5840 ERJ3GEYJ823V 82K 1 10W M R5841 ERJ3GEYJ124V 120K 1 10W M R5860 ERJ3GEYF103V 10K 1 10W M R5861 ERJ3GEYF302V 3K 1 10W M R5862 ERJ6GEYJ103V 10K 1 8W M R5863 ERJ6GEYJ103V 10K 1 8W M R5864 ERJ6GEYF103V 10K 1 8W M R5890 ERJ3GEYJ222V 2 2K 1 10W M R5891 ER...

Page 118: ...332A013 3300pF 50V M Ref No Part No Part Name Description Remarks C1314 F1H1H222A013 2200pF 50V M C1315 F1H1H222A013 2200pF 50V M C1316 F1H1H102A219 1000pF 50V M C1317 F1H1H102A219 1000pF 50V M C1318 ECQV1H473JL3 0 047uF 50V M C1319 F2A1C101A147 100uF 16V M C1320 F2A1H1R0A145 1 0uF 50V M C1321 F0A2A472A019 4700pF 100V M C1323 ECEA1HKN010B 1uF 50V M C1324 F2A1C470A234 47uF 16V M C1326 F2A1C100A147 ...

Page 119: ...50V M C5018 F1K2A1040007 0 1uF 100V M C5019 ECJ1VB1H104K 0 1uF 50V M C5020 ECJ1VB1H104K 0 1uF 50V M Ref No Part No Part Name Description Remarks C5021 ECJ1VB1H104K 0 1uF 50V M C5022 ECJ1VB1H104K 0 1uF 50V M C5023 F1K2A1040007 0 1uF 100V M C5024 ECJ1VB1H104K 0 1uF 50V M C5025 ECJ1VB1H104K 0 1uF 50V M C5026 F1K2A1040007 0 1uF 100V M C5028 ECJ1VB1H104K 0 1uF 50V M C5029 F1K2A1040007 0 1uF 100V M C503...

Page 120: ...F 50V M C6814 F1H1H331A013 330pF 50V M C6815 F1H1H103A219 0 01uF 50V M C6816 F1H1H103A219 0 01uF 50V M C6820 ECJ1VB1H391K 390pF 50V M C6821 F1H1H103A219 0 01uF 50V M C6822 F1H1H103A219 0 01uF 50V M C6823 F1H1H103A219 0 01uF 50V M C6851 F1H1C104A042 0 1uF 16V M C6852 F1H1H102A219 1000pF 50V M C6861 F1H1H102A219 1000pF 50V M C6863 F1H1C104A042 0 1uF 16V M C6938 F1H1C104A042 0 1uF 16V M C6940 F1H1C10...

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