Text preview for : Sony-M430 micro cass.pdf part of Sony M430 microcassette recorder



Back to : Sony-M430 micro cass.pdf | Home

M-430
SERVICE MANUAL
Ver 1.0 1999. 02

US Model AEP Model E Model

Model Name Using Similar Mechanism Tape Transport Mechanism Type

NEW MZ-430-99

SPECIFICATIONS
Tape y (normal position type) Recording system 2-track 1-channel monaural Speaker Approx. 3.6 cm (1 7/16 in.) dia. Tape speed 2.4 cm/s (15/16 ips), 1.2 cm/s (15/32 ips) Frequency range 250 - 4,000 Hz (with TAPE SPEED switch at 2.4 cm/s) Output Earphone jack (minijack) for 8 - 300 ohms earphone Power output (at 10% harmonic distortion) 160 mW Power requirements 3 V DC batteries size AA (R6) 2/External DC 3 V power sources Dimensions (w/h/d) Approx. 62.2 121.5 24.3 mm (2 1/2 4 7/8 31/32 in.) incl. projecting parts and controls Mass Approx. 125 g (4.5 oz.) Supplied accessory Microcassette tape MC-30 (1) Design and specifications are subject to change without notice.

MICROCASSETTETM-CORDER
MICROFILM

1

TABLE OF CONTENTS 1. GENERAL .................................................................... 3 2. DISASSEMBLY
2-1. 2-2. 2-3. 2-4. 2-5. 2-6. Lid Assy, Cassette ............................................................... 4 Lid, Battery Case ................................................................ 5 Cabinet (Rear) Assy ............................................................ 5 Main Board ......................................................................... 6 Mechanism Deck ................................................................. 6 Head, Ceramic ..................................................................... 7

3. MECHANICAL ADJUSTMENTS .............................. 8 4. ELECTRICAL ADJUSTMENTS ............................... 8 5. DIAGRAMS
5-1. Block Diagram .................................................................. 10 5-2. Printed Wiring Board ........................................................ 11 5-3. Schematic Diagram ........................................................... 13

6. EXPLODED VIEWS
6-1. Cabinet Section ................................................................. 15 6-2. Mechanism Deck Section .................................................. 16

7. ELECTRICAL PARTS LIST ..................................... 17

Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering.

2

SECTION 1 GENERAL

This section is extracted from instruction manual.

3

SECTION 2 DISASSEMBLY
The equipment can be removed using the following procedure.

Set

Lid assy, cassette Lid, battery case

Cabinet (rear) assy

Main board

Mechanism deck

Head, ceramic

Note : Follow the disassembly procedure in the numerical order given.

2-1. LID ASSY, CASSETTE

top view

3

cabinet (front)
4

precision screwdriver or equivalent
2 Stop the lid assy, cassette halfway.

lid assy, cassette

precision screwdriver or equivalent
1

Note : When removing the cassette lid, put cloth on the end of a screwdriver or use a polyacetal driver to avoid damage to the cabinet.

9 lid assy, cassette

5 7 6 8

4

2-2. LID, BATTERY CASE

3 claws

2

1

2 5 lid, battery case

2-3. CABINET (REAR) ASSY
Note : When installing, fit the knobs and switches.

1 screw (1.7x16)

3 screw (B1.7x5), tapping 2 screw (1.7x16)

5 claw

6 cabinet (rear) assy

knob

4 claws

switch

5

2-4. MAIN BOARD

7 (M1.4x3.0), locking 1 Unsolder the 2 places. 2 Unsolder the 2 places. 8 (M1.4x3.0), locking 3 Unsolder the 4 places. 6 mic assy 4 Unsolder the 2 places.

9 MAIN board 5 Unsolder the 2 places.

2-5. MACHANISM DECK

1

mechanism deck (MZ-430-99)

2 button (REC)

3 button (PLAY)

4 button (STOP)

6

2-6. HEAD, CERAMIC

2 arm (pinch roller) assy

4 M1.4, special head

3 M1.4, special head

5 head, ceramic

1 claw

7

SECTION 3 MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened swab : record/playback/erase head pinch roller rubber belts capstan 2. Demagnetize the record/playback/erase head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 3. Do not use a magnetized screwdriver for the adjustments. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Power supply voltage : 3 Vdc TAPE SPEED switch : 2.4cm/s Torque Measurement Mode Forward Fast Forward Rewind Torque Meter CQ-103M CQ-201M CQ-201M Meter Reading 5 13 g cm (0.07 0.180 oz inch) more than 30 g cm (more than 0.42 oz inch) more than 30 g cm (more than 0.42 oz inch)

SECTION 4 ELECTRICAL ADJUSTMENTS
Test Tape Type Signal Used for Tape Speed (cm/s) 2.4 2.4 1.2

S-2-A030 3 kHz, 20 dB Head Azimuth Adjustment WS-24 3 kHz, 10 dB Tape Speed Adjustment WS-12

Record/Playback/Erase Head Azimuth Adjustment
Setting: VOL control : mechanical mid TAPE SPEED switch : 2.4cm/s Procedure: 1. Mode : Playback
test tape S-2-A030 (3 kHz, 20 dB) 16 set EAR jack (J101)

level meter

Tape Tension Measurement Mode Forward Tension Meter CQ-403M Meter Reading more than 20 g (more than 0.28 oz)

2. Turn the adjustment screw to obtain the maximum reading on level meter. Note: Several peaks may appear, but the maximum. Adjustment Location : First remove the cover (AZ).
Remove the cover (AZ).

head azimuth adjustment screw

8

M-430 SECTION 5 DIAGRAMS
Tape Speed Adjustment
Setting: VOL control : mechanical mid Procedure: Reform 2.4 cm/s speed adjustment before 1.2 cm/s speed adjustment mode : playback
test tape WS-24: tape speed 2.4cm/s WS-12: tape speed 1.2cm/s (3 kHz, 10 dB) 16 set
S101-4 (REC/PB) PB REC

Adjustment Location : First remove the plate, blind.

5-1. BLOCK DIAGRAM

digital frequency counter

0000

Signal Path : PB
2.4 cm 04 RV601 2.4 cm

D102 BATT

PRE / POWER AMP IC101

S101-3 (REC/PB) PB REC

+

Tape Speed 2.4 cm/s 1.2 cm/s

Frequency counter 2,880 to 3,120 Hz 2,850 to 3,150 Hz
RV601 1.2cm/s RV602 2.4cm/s speed adjustable resistors

15

RV101 VOL

Frequency difference between the beginning and the end of the tape should be within 0.5%. 2.4 cm/s (15 Hz) 1.2 cm/s (15 Hz)

MOTOR SERVO IC601

1

S101-1 (REC/PB) PB REC

S101-2 (REC/PB) PB REC

+3V

+3V

-2 1.2 cm

(REC / PB)

9

HRPE901 REC/PB/ERASE HEAD

10

(ERASE)

MIC901 MIC

S602 TAPE SPEED

2.4 cm -1 1.2 cm

RV601, 602 TAPE SPEED RV602 1.2 cm

8

4

_

M

Specification Value:

3

M901 MOTOR

2. Tape Speed : 1.2 cm/s Playback WS-12 (tape center part) and adjust RV601 so that reading on the digital frequency counter becomes 3,000 Hz.

ALC

OFF

S601 PAUSE ON

14

9

1. Tape Speed : 2.4 cm/s Playback WS-24 (tape center part) and adjust RV602 so that reading on the digital frequency counter becomes 3,000 Hz.

: REC

EAR jack (J101)

+3V

S102 (POWER)

DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 2PCS, 3V

SP101 SPEAKER

CN101 DC IN 3V + -

J101 EAR

Remove the plate, blind.

M-430

5-2. PRINTED WIRING BOARD

1 A

2

3

4

5

6

7

8

9

10

11

12

13

(

)

B

C

D

E

F

G

H

HRPE901 REC/PB/ERASE HEAD HD+ HD (REC/PB) Semiconductor Location Ref. No. D102 IC101 IC601 Location G-3 D-6 E-9 Note: X : parts extracted from the component side. b : Pattern from the side which enables seeing. HE+ HE (ERASE)

11

12

M-430

5-3. SCHEMATIC DIAGRAM

IC Block Diagram IC601 LA5521MTP-2

8 7 6

5

1 2 3 NC NC VCC

4 OUT

Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. C : panel designation. U : B+ Line. H : adjustment for repair. Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal. Voltage is dc with respect to ground under no-signal condition. no mark : PB/REC Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Signal path. E : PB a : REC

CONT NC VC

13

GND

14

SECTION 6 EXPLODED VIEWS
NOTE: The mechanical parts with no reference number in the exploded views are not supplied. Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. -XX and -X mean standardized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example : KNOB, BALANCE (WHITE) ... (RED) Parts Color Cabinet's Color N N Accessories and packing materials are given in the last of this parts list. Abbreviation EE : East European model MX : Mexican model E : Indication of country of origin 1E : No indication of country of origin

6-2. MACHANISM DECK SECTION (MZ-430-99)

70

71 72

73

74 57 75 76 77 78

6-1. CABINET SECTION
SP901

12 11

69

68 13 24 9 10 3
MZ-430-99

80 79 67 81 83 84 66 82 85 59

65

A

MIC901

14
not supplied

64 15 8
7

16 18 17

63

25 5 4 6 26

A

62 19 23 1 58 57 56 55 54 22 2 20
Remark Ref. No. 17 17 18 19 19 20 20 21 21 22 Part No. Description

60 61

86

87

M901

51 52
HRPE901

3 26 27
Ref. No. 1 2 3 4 5 6 7 8 9 10 11 11 11 11 12 12 * 13 * 13 14 15 * 16 Part No. A-3021-216-A 3-704-197-31 3-831-441-99 3-034-687-01 3-031-376-01 3-031-375-01 3-031-374-01 3-034-686-01 3-034-792-01 3-010-503-01 3-031-368-01 3-031-368-11 3-031-368-31 3-031-368-41 X-3377-237-1 Description MAIN BOARD, COMPLETE SCREW (M1.4X3.0), LOCKING SPACER, KNOB TERMINAL (-), BATTERY BUTTON (REC) BUTTON (PLAY) BUTTON (STOP) TERMINAL (+), BATTERY SCREW (2X2.5), TAPPING (B) SPRING (B), BATTERY COIL CABINET (FRONT) (BLACK) (US,AEP,EE,E,MX) CABINET (FRONT) (BLACK) (1E) CABINET (FRONT) (SILVER) (AEP,E) CABINET (FRONT) (SILVER) (1E) LID ASSY, CASSETTE (SILVER) (AEP,E,1E)

2

21 20 53
Remark Ref. No. 51 52 53 54 55 * 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 Part No. 3-028-965-01 3-703-816-31 3-703-816-73 3-028-960-01 3-028-909-01 3-029-640-01 3-331-007-21 3-350-989-01 3-028-961-01 3-028-924-01 X-3376-235-1 3-028-929-01 3-028-940-01 3-028-938-01 3-578-224-00 X-3376-227-1 X-3376-228-1 3-029-634-01 X-3376-231-1 3-377-420-11 Description SPRING (PINCH ARM), TORSION SCREW (M1.4), SPECIAL HEAD SCREW (M1.4), SPECIAL HEAD SPRING (AZIMUTH), COMPRESSION GUIDE (N), TAPE LEVER (PLAY.OW) WASHER WASHER SPRING (BUTTON), COMPRESSION LEVER (PLAY) ARM (PINCH ROLLER) ASSY LEVER (SW) LEVER (SRS) LEVER (SLIDE) WASHER LEVER (F/R) ASSY LEVER (TU) ASSY BEARING FLYWHEEL ASSY BELT Remark

52

3-031-371-01 LID, BATTERY CASE (BLACK) (US,AEP,EE,E,1E,MX) 3-031-371-11 LID, BATTERY CASE (SILVER) (AEP,E,1E) 3-037-004-01 PLATE, SHIELD X-3377-316-1 CABINET (REAR) ASSY (BLACK) (US,AEP,EE,E,1E,MX) X-3377-317-1 CABINET (REAR) ASSY (SILVER) (AEP,E,1E) 3-035-255-01 3-035-255-11 3-358-363-41 3-358-363-61 3-318-203-71 SCREW (1.7X16) (BLACK) (US,AEP,EE,E,1E,MX) SCREW (1.7X16) (SILVER) (AEP,E,1E) PLATE, BLIND (BLACK) (US,AEP,EE,E,1E,MX) PLATE, BLIND (SILVER) (AEP,E,1E) SCREW (B1.7X5), TAPPING (BLACK) (US,AEP,EE,E,1E,MX) SCREW (B1.7X5), TAPPING (SILVER) (AEP,E,1E) KNOB (FR) (BLACK) (US,AEP,EE,E,1E,MX) KNOB (FR) (SILVER) (AEP,E,1E) CUSHION (SP) SPEAKER (JACK) CUSHION (A) CUSHION (B) MICROPHONE, ELECTRET CONDENSER (MIC) SPEAKER (3.6cm)

Ref. No. 71 72 73 74 75 76 77 78 * 79 80 81 82 83 84 85

Part No. X-3376-224-1 3-029-641-01 3-028-957-01 3-028-966-01 X-3376-230-1 3-028-955-01 X-3377-535-1 4-992-239-01 3-028-967-01 3-028-954-01 3-321-483-11 3-028-928-01 3-028-964-01 4-926-562-01 3-028-927-01

Description LEVER (REC) ASSY SPRING, TORSION SPRING (CAM GEAR), TENSION GEAR (S-OFF-OW), CAM LIMITER ASSY SPRING (LOCK), TENSION LEVER (LOCK) ASSY WASHER (A) LEVER (PAUSE RELEASE) SPRING (SW LEVER), TENSION RING, RETAINING LEVER (EJECT) SPRING (SLIDER), TORSION WASHER, STOPPER LEVER (STOP)

Remark

X-3377-254-1 LID ASSY, CASSETTE (BLACK) (US,AEP,EE,E,1E,MX) 3-033-185-01 COVER (AZ) (BLACK) (US,AEP,EE,E,1E,MX) 3-033-185-11 COVER (AZ) (SILVER) (AEP,E,1E) 3-031-382-01 CUSHION (MIC) 3-031-372-01 CASE, MICROPHONE 3-914-930-01 CUSHION (BATTERY CASE LID)

22 23 23 24 25 26 27 MIC901 SP901

3-318-203-72 3-031-381-01 3-031-381-11 3-037-193-01 3-036-882-01 3-037-146-01 3-037-147-01 1-542-386-11 1-505-384-11

86 3-028-917-01 87 X-3376-223-1 HRPE901 1-500-593-11 M901 1-698-533-11

SPRING (GROUND), COMPRESSION CHASSIS (COMP) ASSY HEAD, CERAMIC (REC/PB/ERASE) MOTOR, DC (CAPSTAN/REEL) (including PULLEY)

15

16

SECTION 7 ELECTRICAL PARTS LIST
NOTE: Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX and -X mean standardized parts, so they may have some difference from the original one. RESISTORS All resistors are in ohms. METAL:Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F:nonflammable Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. SEMICONDUCTORS In each case, u : , for example: uA.. : A.. uPA.. : PA.. uPB.. : PB.. uPC.. : PC.. uPD.. : PD.. CAPACITORS uF : F COILS uH : H

MAIN
When indicating parts by reference number, please include the board. Abbreviation EE : East European model MX : Mexican model E : Indication of country of origin 1E : No indication of country of origin

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description < JACK >

Remark

A-3021-216-A MAIN BOARD, COMPLETE ********************* J101 < CAPACITOR >

1-785-791-11 JACK (EAR) < JUMPER RESISTOR >

C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C115 C116 C117 C118 C119 C120 C122 C123 C124 C127 C129 C601 C602 C603

1-104-400-21 1-104-396-11 1-163-038-00 1-164-005-11 1-163-038-00 1-163-038-00 1-104-396-11 1-164-182-11 1-162-638-11 1-163-038-00 1-163-021-11 1-104-396-11 1-164-182-11 1-104-400-21 1-164-346-11 1-164-346-11 1-163-023-00 1-104-400-21 1-163-009-11 1-163-038-00 1-104-402-11 1-163-009-11 1-163-038-00 1-163-038-00 1-126-153-11

ELECT ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT

47uF 10uF 0.1uF 0.47uF 0.1uF

20% 20%

4V 16V 25V 25V 25V 25V 16V 50V 16V 25V 50V 16V 50V 4V 16V 16V 50V 4V 50V 25V 4V 50V 25V 25V 6.3V 10V 6.3V

JC1 JC2 JC3 JC4 JC5 JC6 JC7 JC8 JC9 JC10 JC11 JC12 JC13 JC14 JC15 JC16 JC17

1-216-295-00 1-216-295-00 1-216-295-00 1-216-296-00 1-216-296-00 1-216-296-00 1-216-296-00 1-216-296-00 1-216-296-00 1-216-296-00 1-216-296-00 1-216-296-00 1-216-295-00 1-216-295-00 1-216-295-00

SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT SHORT

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0.1uF 10uF 20% 0.0033uF 10% 1uF 0.1uF 0.01uF 10uF 0.0033uF 47uF 1uF 1uF 0.015uF 47uF 0.001uF 0.1uF 220uF 0.001uF 0.1uF 0.1uF 22uF 1uF 22uF 10% 20% 10% 20%

10% 20% 10%

1-216-296-00 SHORT 1-216-296-00 SHORT < RESISTOR >

20% 10%

20% 10% 20%

R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R121 R122 R123 R124

1-216-037-00 1-216-073-00 1-216-065-00 1-216-121-00 1-216-009-00 1-216-308-00 1-216-218-00 1-216-061-00 1-216-234-00 1-216-077-00 1-216-065-00 1-216-057-00 1-216-045-00 1-216-013-00 1-216-037-00 1-216-194-00 1-216-009-00 1-216-190-00 1-216-089-00 1-216-057-11

METAL CHIP METAL CHIP RES,CHIP RES,CHIP RES,CHIP METAL CHIP RES,CHIP METAL CHIP RES,CHIP METAL CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP RES,CHIP RES,CHIP RES,CHIP

330 10K 4.7K 1M 22 4.7 6.8K 3.3K 33K 15K 4.7K 2.2K 680 33 330 680 22 470 47K 2.2K

5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%

1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/8W 1/10W 1/8W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/8W 1/10W 1/8W 1/10W 1/10W

1-109-982-11 CERAMIC CHIP 1-126-153-11 ELECT < JACK >

CN101

1-580-372-41 JACK, DC (POLARITY UNIFIED TYPE) (DC IN 3V) < DIODE >

D102

8-719-062-18 LED SHR17D-TNBO (BATT) < IC >

IC101 IC601

8-759-339-54 IC NJM-2128M-TE2 8-759-804-43 IC LA5521M

17

M-430 MAIN
Ref. No. R125 R126 R129 R601 R602 R603 R604 R605 R606 Part No. 1-216-041-11 1-216-057-00 1-216-021-00 1-216-041-11 1-216-069-11 1-216-033-00 1-216-085-00 1-216-073-00 1-216-089-00 Description METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP 470 2.2K 68 470 6.8K 220 33K 10K 47K 5% 5% 5% 5% 5% 5% 5% 5% 5% Remark 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W

< VARIABLE RESISTOR > RV101 RV601 RV602 1-225-435-11 RES, VAR, CARBON 50K (VOL) 1-223-586-11 RES, ADJ, CARBON 10K 1-238-663-11 RES, ADJ, CARBON 4.7K < SWITCH > S101 S102 S601 S602 1-771-673-11 1-572-688-11 1-572-922-11 1-692-298-11 SWITCH, SLIDE (REC/PB) SWITCH, PUSH (1 KEY) (POWER) SWITCH, SLIDE (PAUSE) SWITCH, SLIDE (TAPE SPEED) < THERMISTOR (POSITIVE) > THP601 1-810-552-11 THERMISTOR, POSITIVE THP602 1-810-794-11 THERMISTOR, POSITIVE ************************************************************* MISCELLANEOUS *************** HRPE901 1-500-593-11 HEAD, CERAMIC (REC/PB/ERASE) M901 1-698-533-11 MOTOR, DC (CAPSTAN/REEL) (including PULLY) MIC901 1-542-386-11 MICROPHONE, ELECTRET CONDENSER (MIC) SP901 1-505-384-11 SPEAKER (3.6cm) ************************************************************* ACCESSORIES & PACKING MATERIALS ******************************** 3-865-285-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH) (US) 3-865-285-21 MANUAL, INSTRUCTION (SPANISH) (MX) 3-865-285-31 MANUAL, INSTRUCTION (ENGLISH,FRENCH, SPANISH,ITALIAN) (AEP) 3-865-285-41 MANUAL, INSTRUCTION (ENGLISH,FRENCH, SPANISH,ITALIAN,PORTUGUESE) (AEP,E) 3-865-285-51 MANUAL, INSTRUCTION (GERMAN,DUTCH, SWEDISH,FINNISH) (AEP) 3-866-171-21 MANUAL, INSTRUCTION (ENGLISH, SIMPLIFIED CHINESE,HUNGARIAN, RUSSIAN) (EE) 3-866-171-31 MANUAL, INSTRUCTION (TRADITIONAL CHINESE,KOREAN, POLISH,CZECH) (EE) 3-866-171-41 MANUAL, INSTRUCTION (ENGLISH, TRADITIONAL CHINESE) (1E)

Sony Corporation
9-926-960-11
Personal A&V Products Company

18

99B0471-1 Printed in Japan C1999. 2 Published by Quality Engineering Dept. (Shinagawa)