Service Manual

Supplement

Separate Mini Component

System

FILE NO.

DC-007CT

(AU)

PRODUCT CODE No.

129 569 07

DC-007CT/AU consists of "JCX-007" (Tuner/Amplifier AU: 129 561 04), "DAD-CP-007" (CD Changer UK:137 087 00),

"RD-007" (Tape Deck KR:142 785 07), "RB-007" (Remote Control), "SX-007L" (Speaker System: 165 000 00) and

"SX-007R" (Speaker System: 165 001 00).

Please refer this suppliment for Tape deck section, RD-007/KR.

Regarding CD, Amplifier, Tuner, Remote Control and Speakers, please refer the service manual DC-007C/AU (SM5810054) which was already delivered.

(MD OPTION) z /ON

SLEEP

REC MUTE

CD/MD REPEAT MD k

TAPE m

TAPE b d f

DISC SELECT

RANDOM

MD PLAY MODE

MD a n

CD a

TUNER/BAND

MD m

TAPE a e c

CD k

PRESET

SHIFT FM MODE MEMORY

1

5

DISPLAY MODE

9

VIDEO

2

SCROLL

6

3

AUTO MARKER

7

0 +10

4

REC MODE

8

+100

SUPER

BASS

MUTE

—20dB

— VOLUME +

REMOTE CONTROLLER RB-007

REFERENCE No.

SS

5810164

DECK SECTION

SPECIFICATIONS

Track system .................... 4-track, 2-channel stereo

Frequency response ........ 50Hz to 16kHz (CrO2 tape)

......................................... 50Hz to 15kHz (Normal tape)

Signal-to-noise ratio ......... 60dB (Dolby B NR ON)

Wow/flutter ....................... 0.12%(WRMS)

Fast forward/rewind time .. Approx. 110sec.(C-60)

Power supply ................... Supplied from the Tuner/Amplifier

Dimensions ...................... 270(W)x122(H)x276(D)mm

Weight .............................. 1.9kg

Specifications subject to change without notice.

TAPE DECK ADJUSTMENT

1. Azimuth Adjustment

• Be sure to clean the heads before attempting to make any adjustment.

• Be sure both channels (1 and 2) are the same level. (Using a dual-channel oscilloscope)

• Be sure both channel's waveform are same for the phase matching.

• After completion of the adjustment, use the threadlock (TB-1401B) to secure the azimuth adjustment screws.

1. Load a test tape (VTT-738 etc. : 10kHz) in the Deck.

2. Press the PLAY button. (Normal playback)

3. Use a + tip screwdriver to turn the screw for normal azimuth adjustment so that the left and right outputs are maximized at the same phase during normal playback.

4. Press the PLAY button. (Reverse playback)

5. Use a + tip screwdriver to turn the screw for reverse azimuth adjustment so that the left and right outputs are maximized at the same phase during reverse playback.

6. Adjust so that the waveforms for the left and right channels are in alignment.

2. Replacement of Head

3. Parts Location

VR361

TAPE SPEED

ADJUSTMENT

VR371

PLAYBACK_L-CH

ADJUSTMENT

L3501

19KHZ-TRAP

EFFECT

ADJUSTMENT

L-CH

VR381

PLAYBACK_R-CH

ADJUSTMENT

BIAS-ADJUSTMENT

L-CH

VR373

VR372

REC/PLAY

GAIN

L-CH

ADJUSTMENT

VR382

REC/PLAY

GAIN

R-CH

ADJUSTMENT

- 1 -

L3551

19KHZ-TRAP

EFFECT

ADJUSTMENT

R-CH

L3601

BIAS

FREQUENCY

ADJUSTMENT

VR383

BIAS-ADJUSTMENT

R-CH

TAPE DECK ADJUSTMENT

4. Tape Speed Adjustment

• Connect the Frequency Counter to LINE OUT.

1. Insert the test tape (MTT-111N, etc.; 3,000Hz) into the DECK.

2. Press the PLAY button.

3. Adjust VR361 so that a frequency counter reading of 3,010 ± 5Hz is obtained.

4. Press the STOP button, and eject the test tape.

5. Torque Measurement

Item

Test Cassette

PLAY

F.FWD

REW

Take-up Torque

PLAY : TW2111A (FWD)

PLAY : TW2121A (REV)

F.FWD / REW : TW2231

25 ~ 63 gr.cm

60 ~ 120 gr.cm

60 ~ 120 gr.cm

Back tention

PLAY : TW2111A (FWD)

PLAY : TW2121A (REV)

Pulley tention

Driving power cassette :

TW-2412 (PLAY)

TW-2422(REV. PLAY)

2 ~ 6 gr.cm

-

-

> 70 g

6. Amplifier Adjustment

No.

1

2

3

Item

Playback

Level

Test Input Dolby

Tape Switch

TCC130 -

Output Adjust

Point

Remarks

OFF TAPE OUT VR371,381 Align so that TAPE OUT output becomes 388mV.

Rec/Play

Frequency

Rec/Play

Level

AC-225

AC-225

1kHz,

10kHz

-28dB

1kHz

-18dB

ON TAPE OUT VR373,383 Record and play signal, then set frequency characteristic 1kHz output to 0dB. Adjust VR so that 10kHz output becomes 0dB ± 0.5dB

ON TAPE OUT VR372,382 Adjust VR so that R/P output becomes monitor output level.(Monitor output level ± 0.5dB)

- 2 -

EXPLODED VIEW (CABINET & CHASSIS)

1

2

3

Y05

8

Y05

Y05

Y05

Y01

Y01

Y02

Y05

51

5

4

Y03

7

Y02

5

6

71

Y04

9

Y01 10

Y06

Y07

72

Y08

- 3 -

PARTS LIST

PRODUCT SAFETY NOTICE

EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC

SYMBOL

!!!

IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY CAN BE OF

SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY

!!!

, USE ONLY THE REPLACEMENT PARTS DESIGNATED,

OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED IN THE PARTS LIST

IN THIS MANUAL. LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS MUST BE MADE TO DETERMINE THAT EXPOSED

PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE PRODUCT TO THE CUSTOMER.

CAUTION

:

Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.

Regular type resistors are less than 1/4 W carbon type and 0 ohm chip resistors.

Regular type capacitors are less than 50 V and less than 1000 µF type of Ceramic type and Electrical type.

PACKING & ACCESSORIES

REF.NO. PART NO. DESCRIPTION

614 302 0738 CUSHION,FRONT,LEFT

614 302 0745 CUSHION,BACK,FRONT

645 036 4358 POLY SHEET-0850X0500*NC,

BACK

614 303 9730 CARTON CASE,INNER CARTON

CABINET & CHASSIS

6

7

4

5

2

3

REF.NO. PART NO. DESCRIPTION

1 614 302 4842 ASSY,LID,CASSETTE

614 292 1548

614 302 4774

SPRING,WIRE,LID CASSETTE

ASSY,CABINET,FRONT

614 307 1396

614 302 0530

614 302 0363

614 302 0370

ASSY,GEAR,LID CASSETTE

DEC,WINDOW LED,PLAY/REC

BUTTON,SEL,REV.MODE/DOLBY

BUTTON,PLAY,PLAY/REC

8

9

10

614 304 7827 ASSY,CABINET,AFTER BENDING

614 302 7911 PANEL,REAR

614 302 4798 ASSY,CABINET,BOTTOM

FIXING PARTS

REF.NO. PART NO. DESCRIPTION

Y01

Y02

Y03

Y04

Y05

Y06

Y07

Y08

411 021 3503 SCR S-TPG BIN 3X10,FRONT-BOTTOM

411 021 3503 SCR S-TPG BIN 3X10,DECK MECHA

411 021 3503 SCR S-TPG BIN 3X10,GEAR

411 021 3503 SCR S-TPG BIN 3X10,FRONT PWB

411 021 3701 SCR S-TPG BIN 3X10,CABINET

411 021 3701 SCR S-TPG BIN 3X10,BOTTOM-REAR

411 021 3701 SCR S-TPG BIN 3X10,REAR-ELECT

PART

411 021 3503 SCR S-TPG BIN 3X10,SIDE PWB

ELECTRICAL PARTS

REF.NO. PART NO. DESCRIPTION

51 614 298 3928 ASSY,WIRE,R/P&E.HEAD LEAD or 614 308 1975 ASSY,WIRE,R/P&E.HEAD LEAD or

L3801 or

L3901 or

LUG30 or or or

Q3301 or or

D3901

IC331

IC351

IC361

IC362

IC371

IC372

IC373

L3501

L3551

L3601

L3701

Q3302 or

Q3303 or

Q3304 or

Q3305 or

Q3306 or

DECK P.W BOARD ASSY

REF.NO. PART NO. DESCRIPTION

71

!!!

614 301 1774 ASSY,PWB,

DECK LOG.W/DOLBY,DECK AMP

(Only Initial)

C3606

C3607

C3609

CN301

403 058 1508

403 059 0302

403 059 6502

614 239 5455

POLYESTER 1500P K 50V

POLYESTER 0.018U K 50V

POLYESTER 0.022U K 50V

SOCKET

CN311

CN312 or

CN321 or

CN331

CN371

CN372 or

D3301

D3601

D3602

D3621

!!!

645 012 2743

614 020 6562

614 223 9223

614 268 2913

614 308 1968

645 012 2736

645 006 0861

645 005 8226

645 009 6433

407 012 4406

407 012 4406

SOCKET,DIP 9P

SOCKET,4P

SOCKET

ASSY,WIRE,MECHA-LEAD

ASSY,WIRE,MECHA-LEAD

SOCKET,DIP 8P

PLUG,7P

PLUG,3P

PLUG,3P

DIODE 1SS133

DIODE 1SS133

407 012 4406 DIODE 1SS133

407 004 9709 DIODE DSK10C

407 099 5303 ZENER DIODE MTZJ5.6B

410 341 8700 IC M38503M4-092FP

409 294 6307 IC CXA1552P

409 050 8200 IC TC4011BF

409 241 5308 IC BA3126N

409 426 1804 IC KIA4558S

409 345 3804 IC BU4066BC

409 214 1900 IC CXA1298AP

614 270 4295 FILTER,LC

614 270 4295 FILTER,LC

645 009 0615 TRANS,OSC,85KHZ

614 029 3142 MX COIL

614 029 3937 MX COIL

614 029 3142 MX COIL

614 029 3937 MX COIL

645 001 4581 INDUCTOR,100U K

645 031 7842 INDUCTOR,100U K

645 023 8987 FIXER,FIX_SHIELD_WIRE

405 011 8609 TR 2SC1740S-S

405 011 8500 TR 2SC1740S-R

405 020 7402 TR 2SC945A-P

405 020 7204 TR 2SC945A-K

405 141 3307 TR KTC3198-GR

405 141 3208 TR KTC3198-Y

405 143 0007 TR KRC107M-A

405 000 3806 TR DTC114YS

405 143 0007 TR KRC107M-A

405 000 3806 TR DTC114YS

405 143 0007 TR KRC107M-A

405 000 3806 TR DTC114YS

405 143 0007 TR KRC107M-A

405 000 3806 TR DTC114YS

405 143 0007 TR KRC107M-A

405 000 3806 TR DTC114YS

- 4 -

PARTS LIST

or or

Q3621 or or

Q3622 or or

Q3701 or or or or or

Q3702 or or or or or or or or or

Q3603 or

Q3604 or or or or or

Q3605

Q3606 or or or or or or or

Q3551 or

Q3601 or or

Q3602 or or or

REF.NO. PART NO. DESCRIPTION

Q3307 405 143 0007 TR KRC107M-A or

Q3308

405 000 3806

405 151 5209

TR DTC114YS

TR KRA107M or

Q3309 or

Q3310

405 000 0904

405 143 0007

405 000 3806

405 143 0007

TR DTA114YS

TR KRC107M-A

TR DTC114YS

TR KRC107M-A or

Q3311 or

Q3312 or

Q3501 or or

405 000 3806

405 143 0007

405 000 3806

405 151 5209

405 000 0904

405 011 8609

405 011 8500

405 020 7402

TR DTC114YS

TR KRC107M-A

TR DTC114YS

TR KRA107M

TR DTA114YS

TR 2SC1740S-S

TR 2SC1740S-R

TR 2SC945A-P

405 020 7204

405 141 3307

405 141 3208

405 011 8609

405 011 8500

405 020 7402

405 020 7204

405 141 3307

405 141 3208

405 006 3909

405 006 4005

405 141 3703

405 011 8609

405 011 8500

405 020 7402

405 020 7204

TR 2SC945A-K

TR KTC3198-GR

TR KTC3198-Y

TR 2SC1740S-S

TR 2SC1740S-R

TR 2SC945A-P

TR 2SC945A-K

TR KTC3198-GR

TR KTC3198-Y

TR 2SA952-K

TR 2SA952-L

TR KTA1271-Y

TR 2SC1740S-S

TR 2SC1740S-R

TR 2SC945A-P

TR 2SC945A-K

405 141 3307

405 141 3208

405 011 8609

405 011 8500

405 020 7402

405 020 7204

405 141 3307

405 141 3208

405 011 8609

405 011 8500

405 020 7402

405 020 7204

405 141 3307

405 141 3208

405 077 8100

405 146 1209

405 078 3005

405 000 6104

405 006 3909

405 006 4005

405 141 3703

405 006 3909

405 006 4005

405 141 3703

405 011 8609

405 011 8500

405 020 7402

405 020 7204

405 141 3307

405 141 3208

405 151 4400

405 021 0204

405 021 0600

405 033 6706

TR KTC3198-GR

TR KTC3198-Y

TR 2SC1740S-S

TR 2SC1740S-R

TR 2SC945A-P

TR 2SC945A-K

TR KTC3198-GR

TR KTC3198-Y

TR 2SC1740S-S

TR 2SC1740S-R

TR 2SC945A-P

TR 2SC945A-K

TR KTC3198-GR

TR KTC3198-Y

TR 2SA1437

TR KRC104M

TR BA1L4M

TR DTC144ES

TR 2SA952-K

TR 2SA952-L

TR KTA1271-Y

TR 2SA952-K

TR 2SA952-L

TR KTA1271-Y

TR 2SC1740S-S

TR 2SC1740S-R

TR 2SC945A-P

TR 2SC945A-K

TR KTC3198-GR

TR KTC3198-Y

TR KTD1303

TR 2SD1012-F-SPA

TR 2SD1012-G-SPA

TR 2SD1468S-R or

R3609

VR361

VR371

VR372

VR373

VR381

VR382

VR383

X3301 or or or or or

REF.NO. PART NO. DESCRIPTION

or 405 033 6805 TR 2SD1468S-S

Q3801 or

405 011 8609

405 011 8500

TR 2SC1740S-S

TR 2SC1740S-R

405 020 7402

405 020 7204

405 141 3307

405 141 3208

TR 2SC945A-P

TR 2SC945A-K

TR KTC3198-GR

TR KTC3198-Y

Q3802 or or or or

Q3901 or

Q3902

405 151 4400

405 021 0204

405 021 0600

405 033 6706

405 033 6805

405 143 0007

405 000 3806

405 151 5209

TR KTD1303

TR 2SD1012-F-SPA

TR 2SD1012-G-SPA

TR 2SD1468S-R

TR 2SD1468S-S

TR KRC107M-A

TR DTC114YS

TR KRA107M

405 000 0904 TR DTA114YS

401 009 8606 CARBON 39 JA 1/2W

645 003 5647 VR,SEMI,1K N

645 003 5692 VR,SEMI,22K N

645 003 5531 VR,SEMI,10K N

645 003 5548 VR,SEMI,100K N

645 003 5692 VR,SEMI,22K N

645 003 5531 VR,SEMI,10K N

645 003 5548

614 215 5561

645 013 7532

VR,SEMI,100K N

RESONATOR,CERAM

OSC,CERAMIC 4.19MHZ

DECK SW P.W.BOARD ASSY

REF.NO. PART NO. DESCRIPTION

72

!!!

614 301 1781 ASSY,PWB,DECK SW,DECK SW

CN341

D3331

D3332

D3333

D3334

S3331 or or

S3332 or or

S3333 or or

S3334 or or

S3335 or or

S3336 or or

S3337 or or

S3338 or or

S3339 or or

(Only Initial)

645 012 2736 SOCKET,DIP 8P

408 037 4204

408 037 4204 LED SLP-3118B-51HAB-T1

408 032 5404 LED SLP-9118C-51H-S-T1

408 032 5404 LED SLP-9118C-51H-S-T1

645 006 5958

614 220 5471 SWITCH,TACT

614 240 1002 SWITCH,TACT

645 006 5958 SWITCH,PUSH 1P-1T

614 220 5471

614 240 1002 SWITCH,TACT

645 006 5958 SWITCH,PUSH 1P-1T

614 220 5471 SWITCH,TACT

614 240 1002

645 006 5958 SWITCH,PUSH 1P-1T

614 220 5471 SWITCH,TACT

614 240 1002 SWITCH,TACT

645 006 5958

614 220 5471 SWITCH,TACT

614 240 1002 SWITCH,TACT

645 006 5958 SWITCH,PUSH 1P-1T

614 220 5471

614 240 1002 SWITCH,TACT

645 006 5958 SWITCH,PUSH 1P-1T

614 220 5471 SWITCH,TACT

614 240 1002

645 006 5958 SWITCH,PUSH 1P-1T

614 220 5471 SWITCH,TACT

614 240 1002 SWITCH,TACT

645 006 5958

614 220 5471 SWITCH,TACT

614 240 1002

LED SLP-3118B-51HAB-T1

SWITCH,PUSH 1P-1T

SWITCH,TACT

SWITCH,TACT

SWITCH,PUSH 1P-1T

SWITCH,TACT

SWITCH,TACT

SWITCH,PUSH 1P-1T

SWITCH,TACT

- 5 -

EXPLODED VIEW (TAPE MECHANISM)

TM02

TM01

TM03

TAPE MECHANISM (TM-RD007MEC-SH)

REF.NO. PART NO. DESCRIPTION

614 302 7898 ASSY, MECHA, TM-RD007MEC-SH

TM01

TM03

645 033 3347

645 028 0030

HEAD,R/P AUDIO

ASSY,PINCH-ARM

TM02

TM05

TM04

645 028 0542

614 304 5564

645 024 6142

ASSY,PINCH-ARM

ASSY,MOTOR

MAIN-BELT

TM05

TM04

- 6 -

IC BLOCK DIAGRAM & DESCRIPTION

IC331 M38503M4 ( Single-Chip 8-Bit CMOS Microcomputer )

Reset input input output

X

IN

X

OUT

19 20

V

SS

21

V

CC

1

RESET

18

Subclock input

X

CIN

Subclock output

Xco

UT

CNV

SS

15

Clock generating circuit

Watchdog timer

R A M

Reset

R O N

PC

H

C P U

A

X

Y

S

PC

L

PS

Prescaler 12(8)

Prescaler X(8)

CNTR

0

Prescaler Y(8)

CNTR

1

Timer 1(8)

Timer 2(8)

Timer X(8)

Timer Y(8)

A-D converter

(10)

PWM

(8)

P4(5)

INT

0

-

INT

3

P3(5)

SI/O(8)

2 3 4 5 6 7 8 38 39 40 41 42

P2(8)

XCOUT

XCIN

P1(8) P0(8)

9 10 11 12 13 14 16 17 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

21 VSS

22 P17

23 P16

24 P15

25 P14

26 P13

27 P12

28 P11

29 P10

30 P07

31 P06

32 P05

33 P04

34 P03

35 P02

36 P01

37 P00

38 P34/AN4

39 P33/AN3

40 P32/AN2

41 P31/AN1

42 P30/AN0

No.

Pin Name FUNCTIONS

1 VCC

2 VRFF

Power Source Apply voltage of 2.7V-5.5V to VCC, and 0V to VSS.

3 AVSS

4 P44/INT3/PWN I/O port P4 ・ 8-bit CMOS I/O port with the same function as port P0.

5

6

P43/INT2

P42/INT1

7 P41/INT0

8 P40/CNTR1

9 P27/CNTR0/

SRDY

10 P26/SCLK

11 P25/TXD

12 P24/RXD

13 P23

14 P22

I/O port P4

I/O port P4

I/O port P4

I/O port P4

I/O port P2

I/O port P2

I/O port P2

I/O port P2

I/O port P2

I/O port P2

・ CMOS compatible input level.

・ CMOS 3-state output structure.

・ 8-bit CMOS I/O port.

・

I/O direction register allows each pin to be individually

programmed as either input or output.

・ CMOS compatible input level.

・P20,P21,P24 to P27: CMOS3-state output structure.

・ P22,P23,N-channel open-drain structure.

15 CNVSS

16 P21/XCIN

17 P20/XOUT

CNVSS Input

・

This pin controls the operation mode of the chip.

・ Normally connected to VSS.

I/O port P2

I/O port P2

・

・

8-bit CMOS I/O port.

I/O direction register allows each pin to be individually

programmed as either input or output.

18 RESET

19 XIN

20 XOUT

・ CMOS compatible input level.

・ P20,P21,P24 to P27: CMOS3-state output structure.

・ P22,P23,N-channel open-drain structure.

Reset Input

Clock Input

・ Reset input pin for active "L".

・ Input and output pins for the clock generating circuit.

・

Connect a ceramic resonator or quartz-crystal oscillator

Clock Output between the XIN and XOUT pins to set the oscillation frequency.

・ When an external clock is used, connect the clock source to

the Xin pin and leave the Xout pin open.

Power Source ・ Apply voltage of 2.7V-5.5V to VCC, and 0V to VSS.

・ 8-bit CMOS I/O port.

I/O port P1

・ I/O direction register allows each pin to be individually programmed

as either input or output.

・ CMOS compatible input level.

・ CMOS 3-state output structure.

・ P13 to P17(5 bits) are enabled to output large current for LED drive.

I/O port P0

I/O port P3

・

8-bit CMOS I/O port with the same function as port P0.

・ CMOS compatible input level.

・

CMOS 3-state output structure.

- 7 -

Function ex except a port function

・ Interrupt input pins

・ PWM output pin

・ Interrupt input pins

・ Timer Y function pin

・ Serial I/O function pin/

Timer X function pin

・ Serial I/O function pin

・ Sub-clock generating circuit I/O

pins(connect a resonator)

・

A-D converter input pin

SCHEMATIC DIAGRAM

This is a basic shcematic diagram.

- 8 -

PRODUCT SAFETY NOTICE

Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol

!!!

in the parts list and the schematic diagram designated components in which safety can be of special significance. When replacing a component identified by

!!!

, use only the replacement parts designated, or parts with the same ratings of resistance, wattage or voltage that are designated in the parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before returning the product to the customer.

- 9 -

WIRING DIAGRAM

E-HEAD

R/P HEAD

R-CH

L-CH

DECK MECHANISM

M

-

+

B A

DECK P.W.B

CN371

DECK SWITCH P.W.B

CN341

CN331 CN312

- 10 -

- 11 -

CN311

IC BLOCK DIAGRAM & DESCRIPTION

IC351 CXA1552P ( Dolby B type Noise Reduction System)

REC

IN 1

16

GND

15

PB

IN 1

14

IREF

13

MODE

SW

12

LINE

OUT 1 TC 1

11 10

REC

OUT 1

9

ATT1

+

SC

DET

ATT2

ATT3

ATT3

ATT2

SC DET

ATT1

+

1

REC

IN 2

2

V

CC

3

PB

IN 2

4 5 6

V

CC

/2 NR SW LINE

OUT 2

7

TC 2

IC361 TC4011BF ( CMOS Digital Integrated Circuit

Silicon Monolithic)

8

REC

OUT 2

ATT : Attenuator

SC : Side Chain

DET : Detector

IC372 BU4066BCF ( Quad Analog Switch)

VDD A4

14 13

B4

12

X4

11

X3

10

B3

9

A3

8

A

B

1

A1

2

B1

3

X1

4

X2

5

B2

6 7

A2 VSS x = A • B x

I/O

1

O/I

1

O/I

2

3

I/O

2

4

C

2

5

1

2

C

3

V

SS

6

7

OUT/IN IN/OUT

SWA

SWD

OUT/IN IN/OUT

IN/OUT OUT/IN

SWB

SWC

IN/OUT OUT/IN

14 V

CC

13 C

1

12

C

4

11 I/O

4

10 O/I

4

9

O/I

3

8 I/O

3

IC362 BA3126N (2-channel head switch for

radio cassette recorders )

DIP / SOP / SSOP

IC373 CXA1298AP

(Stereo Tape Recording Equalizer Amplifier)

1

2 3 4 5 6

7 8 9

IC371 KIA4558S

(Dual Low Noise Operational Amplifier)

16 15 14 13

MIX

12

AGC

11 10

EQ

9

REFERENCE

& BIAS

1 2

CONTROL

3 4

AGC

DETECTOR

5

AGC

6 7

EQ

8

A B

1 2 3 4 5 6 7 8 9

- 12 -

Sep. / '00 / 450 BB Printed in Japan

SANYO Technosound Co., Ltd.

Osaka, Japan