sanyo MCD ZX300, MCD ZX350 Service Manual

0 (0)

FILE NO.

Service Manual

CD Portable Radio

Cassette Recorder

MCD-ZX300

SERIES

MCD-ZX300 (CA)

MCD-ZX300F (XE)

MCD-ZX350 (CA)

MCD-ZX350F (XE)

MCD-ZX350

SERIES

CONTENTS

PRODUCT CODE No. 164 083 03 300 (CA) 164 083 01 300F(XE) 164 083 04 350 (CA) 164 083 02 350F(XE)

Specification .....................................................................

Front

Laser beam safety precaution ..........................................

1

Tuner Adjustments ...........................................................

2

Tape Deck Adjustments ...................................................

3

Exploded View (Cabinet & Chassis) ................................

4

Parts List ..........................................................................

5

Exploded View & Parts List(Tape Deck) .........................

7

Block Diagram ..................................................................

7

IC Block Diagram & Description .......................................

8

Schematic Diagram (Main/CA) ........................................

10

Schematic Diagram (Main/XE) .........................................

12

Schematic Diagram (CD/CA) ...........................................

14

Schematic Diagram (CD/XE) ...........................................

16

Wiring Diagram (CD Main and Rec SW) ........................

18

Wiring

Diagram (Tuner, Display and Rectifier) ..............

19

Wiring

Connection ...........................................................

20

SPECIFICATIONS

(CASSETTE SECTION)

 

Recording System ...........

4-track, , 2-channel stereo

Erasing System ...............

Magnet erase

Tape speed .....................

4.75 cm/sec.

Fast forward and

 

Rewind time ..............

Approx. 110 sec. (C-60 tape)

Frequency range ............

80 - 12,000 Hz (Normal tape)

(CD PLAYER SECTION)

 

Channels .........................

2 channels stereo

S/N ratio ..........................

70 dB

Wow & Flutter ..................

Below measurable limits

Sampling frequency ........

44.1 kHz

Quantization ....................

16 bits linear/ch

Pickup light source ..........

Semi-conductor laser

Pickup wave length .........

790 nm

Laser output ....................

Continuous wave max. 0.6 mW

(RADIO SECTION)

 

Tuning range ...................

FM : 87.5 - 108 MHz (XE)

 

FM : 88.0 - 108 MHz (CA)

 

AM : 526.5 - 1,606.5 kHz (XE)

 

AM : 525.0 - 1,710.0 kHz (CA)

(GENERAL SECTION)

 

Power output ...................

2W/ch (DC max)

Speaker ...........................

10 cm x 2

Terminal impedance .......

PHONES : 32 ohms

Power source ..................

AC : 230V, 50Hz (XE)

 

: 120V, 60Hz (CA)

 

DC : 12 V ("D"X8 batteries)

Dimensions .....................

380 (W) x 170 (H) x 260 (D) mm

Weight (approx.)..............

2.7 kg (Not including batteries)

Specifications subject to change without notice.

REFERENCE No. SM5810282

LASER BEAM SAFETY PRECAUTION

• Pickup that emits a laser beam is used on this CD section.

CAUTION :

USE OF CONTROLS OR ADJUSTMENTS OR

PERFORMANCE OF PROCEDURES OTHER

THAN THOSE SPECIFIED HEREIN MAY RESULT

IN HAZARDOUS RADIATION EXPOSURE.

LASER OUTPUT................

0.6 mW Max. (CW)

 

 

 

 

 

 

 

 

 

 

 

 

 

WAVE LENGTH .................

790 nm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC BLOCK DIAGRAM & DESCRIPTION

IC201 TA2068N (Cassette Preamp.)

IC301 LA4227(Power Amp.)

 

 

 

VCC

OUT1

BS1

NF1

IN1

PRE GND

 

12

11

 

10

9

8

7

 

 

 

 

Ch1

-

 

 

 

 

 

 

+

 

 

 

 

 

THERMAL

 

 

 

 

 

 

SHUT DOWN

 

 

 

 

STANDBY

PROTECTION

 

 

BIAS

 

 

 

 

 

 

SW

 

 

 

+

 

CIRCUIT

 

 

 

 

 

 

 

 

 

 

 

Ch2 -

 

 

 

1

2

 

3

4

5

6

 

STANDBY

OUT2

BS2

NF2

IN2

DC

 

 

 

 

 

 

 

(FILTER)

IC903 MM1469XH (CD Driver)

28

27

26

25

24

23

22

21

20

19

18

17

16

15

 

 

D.BUF

D.BUF

 

 

 

 

 

D.BUF D.BUF

 

 

 

 

 

 

 

 

 

 

Vcc

Vcc

 

 

 

 

 

 

 

 

 

 

Level shift

 

 

 

 

 

 

 

Level shift

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRIVER MUTE

 

 

 

 

T.S.D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level shift

 

 

 

 

 

 

 

 

 

Level shift

 

 

 

D.BUF

D.BUF

 

 

 

 

 

 

 

D.BUF D.BUF

 

 

1

 

2

 

3

4

5

6

7

8

9

10

11

12

13

14

- 1 -

TUNER ADJUSTMENTS

• Use a plastic screw driver for adjustments.

• Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter.

• Set of unit

T103

T102

JW106

Supply voltage

: DC 12V

 

 

Speaker

: 4 ohms

 

 

Standard output

: 50 mW (450 mV)

 

 

Function switch

: RADIO

 

 

T101

MW ANT

 

 

PARTS LOCATION

FM ANT

FM (E)

 

 

 

 

 

 

 

 

 

T104

 

IC101 JW105

L101 VC102 VC103 L102 VC104

VC103

 

 

 

 

 

1. AM ADJUSTMENT

Band switch : MW

 

 

 

 

 

 

 

 

 

 

 

 

 

Step

Adjusting

 

Connection

 

 

 

S G

 

Position of

 

Adjust-

 

 

VTVM

 

Circuit

 

Input

 

 

 

Output

 

 

Frequency

 

tuning dial

 

ment

 

Oscilloscope

 

 

 

Closed the output

 

 

Connect sweep

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

IF

terminal by sweep

 

 

 

generator to

 

 

 

465 kHz

 

 

Low

 

T103

 

 

 

 

 

 

 

 

generator, it place

 

IC101(19(H)) and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to MW ANT.

 

 

 

C107(E).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

515 kHz

 

 

Low end

 

T101

 

 

 

 

 

 

Tuning

Connect AM SG to

 

Connect VTVM to

 

 

 

 

 

 

 

 

 

 

 

 

Max.

3

coverage

 

TEST LOOP.

 

speaker terminals.

 

 

 

1640 kHz

 

 

High end

 

VC103

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

600 kHz

 

 

600 kHz

 

MW COIL

 

 

 

 

 

 

Tracking

Connect AM SG to

 

Connect VTVM to

 

 

 

 

 

 

 

 

 

 

 

 

Max.

5

 

 

 

TEST LOOP.

 

speaker terminals.

 

 

 

1400 kHz

 

 

1400 kHz

 

V104

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. FM ADJUSTMENT

 

 

Band switch : FM

 

 

 

 

FM Dummy antenna : 75 ohms unbalance

Step

Adjusting

 

 

Connection

 

S G

 

 

Position of

 

Adjust-

 

 

VTVM

 

Circuit

 

 

Input

 

 

Output

 

Frequency

 

tuning dial

 

ment

 

Oscilloscope

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connect sweep

 

 

 

Connect VTVM

 

 

 

 

 

 

 

T104 and

 

 

 

 

 

 

 

 

 

generator to

 

 

 

 

generator to

 

 

 

 

 

 

 

 

 

 

 

 

1

IF

 

 

 

 

 

 

 

10.7MHz

 

Low

 

 

T102

 

 

 

 

 

 

 

IC101 (24pin)

 

 

 

 

IC101 (19PIN)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and C107(E)

 

 

 

and C1075 (E).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

87MHz

 

 

Low end

 

 

L102

 

 

 

 

 

 

Tuning

 

 

Connect FM SG to

 

 

Connect VTVM to

 

 

 

 

 

 

 

 

 

 

Max.

3

coverage

 

FM ANT (H) & FM (E).

 

 

speaker terminals.

 

109MHz

 

High end

 

VC101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

90.0MHz

 

90.0MHz

 

 

L101

 

 

 

 

 

 

Tracking

 

 

Connect FM SG to

 

 

Connect VTVM to

 

 

 

 

 

 

 

 

 

 

Max.

5

 

 

FM ANT (H) & FM (E).

 

 

speaker terminals.

 

106.0MHz

 

106.0MHz

 

VC102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This is a basic adjustment.

- 2 -

TAPE DECK ADJUSTMENTS

1. HEAD REPLACEMENT

After replacement, demagnetize the heads by using a degausser.

Be sure to clean the heads before attempting to make any adjustments.

All wiring should be returned to the original position after work is completed.

2. HEAD AZIMUTH ADJUSTMENT

(1)Load the test tape(VTT-703, etc., 10 kHz) for azimuth adjustment.

(2)Press the PLAY button.

(3)Use a cross-tip screwdriver to turn the screw for azimuth adjustment so that the left and right output are maximized.

(4)Press the STOP button.

(5)After completion of the adjustment, use thread lock(TB-1401B) to secure the azimuth-adjustment screw.

3.MOTOR SPEED ADJUSTMENT

(1)Insert the test tape(TCC-119, etc., 3,000 Hz).

(2)Press the PLAY button.

(3)Use a flat-tip screwdriver to turn the SVR(located inside the rear of the motor) to adjust SVR so that the frequency counter become 3,000 Hz.

4.CHECKING THE MECHANISM TORQUES AND TENSION

• Clean the head, capstan and pinch roller before making any measurement.

Measurement

Take-up torque

Back tension

Tape tension

Cassette for

PLAY : TW-211A

PLAY : TW-2111A

Drive-power cassete

measurement

F.FW/REW : TW-2231

 

TW-2412

PLAY

30 - 60 gr.cm

2.0 - 4.5 gr.cm

60 gr or more.

F.FWD

55 - 120 gr.cm.

-----

-----

REW

55 - 120 gr.cm.

-----

-----

This is a basic adjustment.

- 3 -

sanyo MCD ZX300, MCD ZX350 Service Manual

- 4 -

73

Y01 10

51

Y07

Y02

11 8

6

7 5

71

4 3

20

 

 

 

 

 

1

 

 

 

 

53

 

 

 

 

 

Y10

 

Y07

 

 

Y11

 

 

 

 

 

 

14

16

 

 

13

 

 

 

15

18

29

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

30

 

 

 

 

 

Y05

11

Y02

 

 

 

 

 

 

 

Y05

72

 

 

 

Y04

 

 

 

 

 

 

Y03

 

 

 

 

12

 

 

 

Y01

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

51

33

 

 

 

 

 

Y13

 

 

 

 

 

Y14

26

57

 

27 28

Y11

31 Y12

2

 

 

9

Y21

 

 

 

 

 

 

 

 

 

39

 

Y21

44

 

 

Y23

 

 

 

 

 

 

25

37

 

 

Y23

 

 

 

40

 

 

 

 

 

 

54

 

 

 

 

Y21

 

 

 

 

 

Y17

 

 

 

 

Y22

 

55

 

 

 

Y21

 

36

 

 

 

 

 

38

 

 

Y18

 

 

 

 

 

 

 

 

 

 

56

Y20

75

 

 

 

 

 

 

 

 

 

 

 

35

 

 

 

 

 

74

 

 

 

 

 

Y16

 

 

 

 

 

33

34

 

Y13

Y15

CHASSIS) & VIEW(CABINET EXPLODED

Y14

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 DESIGNATE COMPONENTS IN WHICH SAFETY CAN OF SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED , 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 1/4W carbon type and 0 ohm chip resistors.

Regular type capacitors are less than 50V and less than 1000 F of Ceramic type and Electrolytic type.

PACKING & ACCESSORIES

REF.NO.

 

PART NO.

DESCRIPTION

REF.NO.

PART NO.

DESCRIPTION

38

 

645 042 0764

BAND KNOB BKT

39

 

645 055 1086

ASSY CABINET REAR(All except 300XE)

 

645 055 3080

CARTON CASE(300CA)

 

 

39

 

645 055 1079

ASSY CABINET REAR(300XE)

 

645 055 1390

CARTON CASE(300XE)

 

 

40

 

645 054 3432

KNOB LEVEL,BAND

 

645 055 3097

CARTON CASE(350CA)

 

 

44

 

645 055 1307

BATTERY LID

 

645 055 1406

CARTON CASE(350XE)

 

 

FIXING PARTS

 

 

645 055 3028

INSTRUCTION MANUAL(CA)

 

 

REF.NO.

 

PART NO.

DESCRIPTION

 

645 055 1314

INSTRUCTION MANUAL(300XE)

 

 

Y01

 

645 027 1168

SCR 3X8,SPK

 

645 055 1321

INSTRUCTION MANUAL(350XE)

 

 

Y02

 

645 023 6617

SCREW ST 3X10,CTL BKT

 

645 055 3059

POLY BAG(CA)

 

 

Y03

 

645 027 1168

SCR 3X8,CASS DOOR GEAR

 

645 046 1620

POLY BAG(XE)

 

 

Y04

 

645 023 6594

SCREW ST 3X8,RECORDING BD

 

645 044 1943

POLY BAG,I/B

 

 

Y05

 

645 023 6617

SCREW ST 3X10,CASS DECK

 

645 027 2073

POLY BAG,PWR CORD

 

 

Y07

 

645 023 6594

SCREW ST 3X8,CD BD

 

645 055 1369

POLY FOAM

 

 

Y10

 

645 033 4276

SCR 2X6,CD LEAF AW

!

645 023 3463

POWER CORD(XE)

 

Y11

 

645 042 0306

SCR 3 X 12,CD TRAY TO F CAB

!

645 041 7160

AC CORD(CA)

 

Y12

 

645 027 1168

SCR 3X8,CD DOOR GEAR

 

645 041 9812

REMOTE CTL(350CA,XE)

 

 

Y13

 

645 027 1373

WASHER METAL

CABINET & CHASSIS

 

 

 

Y14

 

645 033 0247

SCR 2.6X8,CD DECK

REF.NO.

PART NO.

DESCRIPTION

Y15

 

645 033 1527

SCR 2.6X6,TUNING DRUM

1

645 054 3326

KNOB ROTARY,VOL

Y16

 

645 023 6594

SCREW ST 3X8,TUNER BD

2

645 054 0776

CD DECK MECHANISM,13933162

Y17

 

645 027 1182

SCR 3X20,PWR TRANS

3

645 042 1181

CASS DOOR SPRING

Y18

 

645 027 1144

SCR 2.8X12,AC SOCKET

4

645 055 1123

ASSY CASS LID,U4-A77

Y20

 

645 023 6594

SCREW ST 3X8,RECTIFIER BD

5

645 055 1291

CD DISPLAY LENS(All except 350XE)

Y21

 

645 027 1199

SCR 3X30,F CAB TO BACK CAB

5

645 055 1284

CD DISPLAY LENS(350XE)

Y22

 

645 027 1236

SCR 3X8,ROD ANT

6

645 055 1116

ASSY CD CTL PANEL

Y23

 

645 023 6617

SCREW ST 3X10,CD TRAY

7

645 055 2892

ASSY CABINET(350CA)

ELECTRICAL-PARTS

 

7

645 055 2885

ASSY CABINET(300CA)

 

REF.NO.

 

PART NO.

DESCRIPTION

7

645 055 1062

ASSY CABINET(350XE)

 

7

645 055 1055

ASSY CABINET(300XE)

51

 

645 042 3307

SPK 4

8

645 054 3425

KNOB PUSH,BASSXPANDER

53

 

645 043 9780

LEAF SW,CD LID SW

9

645 054 3432

KNOB LEVEL,FUNCTION

54

!

645 042 9439

PWR TRANS,D1110VN(CA)

54

!

645 041 9881

PWR TRANS,V3023FS(XE)

10

645 042 0924

SPK CLIP

11

645 054 3401

CTL BD BKT

55

!

645 041 9935

AC SOCKET HJC-022A,UL APP(CA)

12

645 036 0527

ASSY,CASS GEAR

55

!

645 032 9760

AC SOCKET S-1-1225,VDE MARK(XE)

56

!

645 055 2984

FUSE GLASS TUBE,FS1101(CA)

13

645 054 3333

KNOB CASS PAUSE

14

645 054 3340

KNOB CASS STOP/EJECT

56

!

645 054 0639

FUSE GLASS TUBE,FS1101(XE)

15

645 054 3357

KNOB CASS FFWD

57

 

645 041 9928

ROD ANTENNA,2 SECTION

 

 

645 055 1161

FFC CABLE 16PINS,

16

645 054 3364

KNOB CASS REWIND

 

 

17

645 054 3371

KNOB CASS PLAY

 

 

 

CD CN904 TO CD DECK

18

645 054 3388

KNOB CASS RECORD

DISPLAY P.W.BOARD ASSY

20

645 055 1093

ASSY CD DOOR

REF.NO.

 

PART NO.

DESCRIPTION

25

645 054 3319

KNOB ROTARY,TUNING

 

71

 

614 324 6763

ASSY,PWB DISPLAY(Only initial)

26

645 054 0929

HANDLE

 

 

 

 

(300CA,XE)

27

645 042 0542

DIAL POINTER

 

 

 

71

 

614 324 5438

ASSY,PWB DISPLAY(Only initial)

28

645 042 0351

CD DOOR SPRING

 

 

 

 

(350CA,XE)

29

645 055 1109

ASSY TOP PANEL,CD TRAY

 

 

 

D1201

 

645 033 3477

DIODE RPM-6938-V4(350CA,XE)

30

645 042 0801

CD DOOR LOCK

 

LED701

 

645 054 0615

LED ROUND TYPE,P/P

31

645 033 4245

ASSY,GEAR CD DOOR,1020

 

LED702

 

645 054 0615

LED ROUND TYPE,REP

33

645 033 3446

RUBBER SILICON

 

LED703

 

645 054 0615

LED ROUND TYPE,PROG

34

645 042 0733

TUNING DRUM

 

SW701

 

645 042 0023

SW TACT,STOP/CLEAR

35

645 042 0740

TUNING KNOB GEAR

 

SW702

 

645 042 0023

SW TACT,FB-B-SCAN

36

645 033 0391

AC SKT COVER

 

SW703

 

645 042 0023

SW TACT,FF-F-SCAN

37

645 042 0788

FUNCTION KNOB BKT

 

SW704

 

645 042 0023

SW TACT,REPEAT

 

 

 

 

 

 

-

5 -

 

 

 

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