Sony M-530V, М-535V, М-630V, М-635VK Service Manual

M-530V/535V/630V/635VK

SERVICE MANUAL

Ver 1.0 1999. 02

Photo : M-530V

SPECIFICATIONS

US Model

Canadian Model

M-530V/535V/630V/635VK

AEP Model

E Model

M-530V/535V/630V

Chinese Model

M-630V

Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MZ-530V-99

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)

Input (M-635VK/630V only)

Microphone input jack (minijack/PLUG IN POWER)
sensitivity 0.24 mV for 3 kilohms or lower impedance microphone

Output

Earphone jack (minijack) for 8 - 300 ohms earphone

Power output (at 10% harmonic distortion)

250 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 accessories

AC power adaptor AC-E351 (1) (M-635VK only)
Battery charge adaptor BCA-35E (1) (M-635VK only)
Rechargeable batteries NC-AA, 1.2 V, 600 mAh, Ni-Cd (2) (M-635VK
only)
Microcassette tape MC-30 (1) (M-630V/535V/530V for Europe only)
Batteries R6P (SR) (2) (M-630V for Europe only)
Carrying case (1) (M-630V for Europe only)

Design and specifications are subject to change without notice.

MICROFILM

– 1 –

MICROCASSETTE

-CORDER

TM

TABLE OF CONTENTS

1. GENERAL ....................................................................3

2. DISASSEMBLY

2-1. Lid Assy, Cassette ...............................................................4

2-2. Lid, Battery Case ................................................................ 5

2-3. Cabinet (Rear) Assy ............................................................ 5

2-4. Main Board ......................................................................... 6

2-5. Mechanism Deck................................................................. 6

2-6. LED Unit............................................................................. 7

2-7. Head, Ceramic..................................................................... 7

3. MECHANICAL ADJUSTMENTS..............................8

4. ELECTRICAL ADJUSTMENTS ...............................8

5. DIAGRAMS

5-1. Block Diagram .................................................................. 11

5-2. Printed Wiring Board ........................................................ 13

5-3. Schematic Diagram ........................................................... 15

6. EXPLODED VIEWS

6-1. Cabinet Section ................................................................. 17

6-2. Mechanism Deck Section.................................................. 19

7. ELECTRICAL PARTS LIST.....................................20

Notes on Chip Component Replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270˚C 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.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE
WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PAR TS WHOSE
P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE ! SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

– 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

Cabinet (rear)
assy

Main
board

Mechanism
deck

Head,
ceramic

Lid,
battery case

Note : Follow the disassembly procedure in the n umerical order given.

2-1. LID ASSY, CASSETTE

top view

4

lid assy,
cassette

3

cabinet (front)

precision screwdriver
or equivalent

2

Stop the lid assy, cassette

halfway.

1

LED
unit

precision screwdriver
or equivalent

7

6

8

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

– 4 –

2-2. LID, BATTERY CASE

3

claws

2

2

1

5

lid, battery case

2-3. CABINET (REAR) ASSY

Note : When installing, fit the knobs and switches .

1

screw (1.7x16)

knob

switch

3

screw (B1.7x5), tapping

2

screw (1.7x16)

5

claw

6

cabinet (rear) assy

4

claws

knob

switch

– 5 –

2-4. MAIN BOARD

8

mic assy

7

Unsolder.

1

Unsolder the 2 places.

9

(M1.4x3.0), locking

2

Unsolder the 2 places.

0

(M1.4x3.0), locking

3

Unsolder the 4 places.

4

Unsolder the 2 places.

!¡

MAIN board

5

Unsolder the 2 places.

2-5. MACHANISM DECK

2

button (REC)

6

Unsolder the 4 places.

(M-630V/635VK only)

1

7

mechanism deck

(MZ-530V-99)

5

(1.7x2.0), special head

6

lug, 2

button (PLAY)

3

4

button (STOP)

– 6 –

2-6. LED UNIT

1

(1.7), tapping

2

bracket (LED)

3

LED unit

2-7. HEAD, CERAMIC

4

M1.4, special head

5

head, ceramic

2

arm (pinch roller) assy

3

M1.4, special head

1

claw

– 7 –

SECTION 3

MECHANICAL ADJUSTMENTS

SECTION 4

ELECTRICAL 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

Torque Measurement

Mode Torque Meter Meter Reading

Forward CQ-103M

Fast Forward CQ-201M

Rewind CQ-201M

T ape Tension Measurement

Mode Tension Meter Meter Reading

Forward CQ-403M

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)

more than 20 g

(more than 0.28 oz)

Test T ape

Type Signal Used for

S-2-A030 3 kHz, – 20 dB

WS-24 2.4
WS-12

3 kHz, – 10 dB Tape Speed Adjustment

Head Azimuth Adjustment

T ape Speed

(cm/s)

2.4

1.2

Record/Playback/Erase Head Azimuth Adjustment

Setting:

VOL control : mechanical mid
TAPE SPEED switch : 2.4cm/s
VOR switch : OFF

Procedure:

1. Mode : Playback

test tape
S-2-A030
(3 kHz, –20 dB) level meter

16

Ω

set

EAR jack (J101)

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 –

Tape Speed Adjustment

RV601

1.2cm/s

RV602

2.4cm/s

speed adjustable resistors

Setting:

VOL control : mechanical mid
VOR switch : OFF

Procedure:

• Reform 2.4 cm/s speed adjustment before 1.2 cm/s speed
adjustment mode : playback

Adjustment Location :

First remove the plate, blind.

Remove the
plate, blind.

test tape
WS-24: tape speed 2.4cm/s
WS-12: tape speed 1.2cm/s
(3 kHz, –10 dB)

set

EAR jack (J101)

digital frequency
counter

16

Ω

0000

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.

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.

Specification Value:

Tape Speed Frequency counter

2.4 cm/s 2,880 to 3,120 Hz

1.2 cm/s 2,850 to 3,150 Hz

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)

– 9 –

• IC Block Diagrams

IC101 LA4168ML

PRE GND

30

EQ IN

MIC IN

Vref OUT

MIC VCC

SECTION 5

DIAGRAMS

R, F OUT

LED DRIVE

R/P SW

PAUSE

P/R MUTE

212223242526272829

GVN CONT

GVN Vref

Vs

GVN GND

GVN OUT

181920

17

16

1

PRE NF

300k

SPEED

8

GNV SPEED UP

PAUSE

MIC
VCC

+
–

Vref

9

AUT STOP CONT

10

AUT STOP IN

11

PWR IN

1

12

PWR OUT1

R/P

R, F

POWER

13

PWR GND

2

14

PWR OUT2

GVN

15

Vcc

2.2k

30k

2k

+

–

EQ

2

PRE OUT

+

–

MIC

3

REG IN

+

4

–

20k

REC

REG OUT

5

ALC CONT

ALC

6

VOX CONT

VOX

VOX

7

VOX DELAY

IC501 MM1251BFBE (M-630V/635VK only)

NC

VCC

VREF

VS

7

8

6

–
+

+

VOLTAGE UP

–

1

2

3

CT

NC

GND

HYS

5

CIRCUIT

4

OUT

– 10 –

J102

MIC

MIC901

MIC

(PLUG IN POWER)

MIC

530V/535V

630V/635VK

ALC CONTROL

Q101

HRPE901

REC/PB/ERASE

HEAD

REC/PB
SWITCH

Q102

REC/PB

SWITCH

Q110, 111

VOR

SWITCH

Q104

REC LED
SWITCH

Q106, 108

REC LED

DRIVE

Q107

NF CONTROL

Q103, 105

REC/PB

SWITCH

Q112

PB

REC

S101-3

(REC/PB)

(REC/PB)

(ERASE)

1.2cm 2.4cm
S602-2

TAPE SPEED

S101-1

(REC/PB)

PB

REC

26 15

21

27

5

4

1

29

28

2

REC/PB AMP

IC101 (1/2)

+
–

+
–

+
–

+

–

MIC IN

MIC

EQ

PRE NF
ALC CONT

REC OUT

VREF OUT

EQ IN

MIC VCC

MUTE

R.F

VCC

3

REC IN

630V/635VK

PRE OUT

7

VOX

VOX DELAY

B+

(3V)

ALC

MIC
VCC

S101-4

(REC/PB)

PB

REC

OFF

ON

PB

REC

OFF

L
H

S103

VOR

RV101
VOL

S603

FAST PB

S602-1

TAPE SPEED

S601

PAUSE

D102

REC

REC/BATT

(630V/635VK)

(530V/535V)

530V/535V

RV601

TAPE

SPEED

1.2cm

RV602

TAPE

SPEED

2.4cm

FAST PB
SWITCH

Q601

1.2cm 2.4cm

20

24

19

11 14

PWR IN PWR OUT2

12

16

22

PWR OUT1

GVM OUT

GVM VREF
GVM CONT

POWER AMP

IC101 (2/2)

LED DRIVE

23

P/R SW

P/R

PAUSE

D504

630/635VK

REC LED
SWITCH

Q109

BATT LED

SWITCH

Q501

PAUSE

Q113

B+

(+3V)

BATT LED

SWITCH

Q502

M

B+

(+3V)

B+

(+3V)

M901

MOTOR

5

3

4

OUT

HYS

6

VS

7

VCC

GND

BATTERY LOW DET

IC501

630V/635VK

S101-2

(REC/PB)

J101

EAR

+

SP901

SPEAKER

04

LED UNIT

BATT

B+

DRY BATTERY

SIZE "AA"

(IED DESIGNATION R6)

2PCS, 3V

DC IN 3V

CN101

OFF

ON

S102

(POWER)

Signal path
: PB
: REC

5-1. BLOCK DIAGRAM

M-530V/535V/630V/635VK

– 11 – – 12 –

M-530V/535V/630V/635VK

5-2. PRINTED WIRING BOARD

A

B

C

D

1

2345678910111213

E

F

G

H

HRPE901

REC/PB/ERASE

HEAD

HD+

(REC/PB)

(ERASE)

• Semiconductor Location

Ref. No. Location
D102 G-3

(D504) G-8
IC101 D-7

(IC501) G-11
Q101 E-4

Q102 E-5
Q103 G-4
Q104 F-8
Q105 F-3

( ) : 630V/635VK only
< > : 530V/535V only

HD–
HE+
HE–

Ref. No. Location
Q106 G-8

Q107 G-5
Q108 G-7
<Q109> G-7
Q110 C-7
Q111 C-9
Q112 E-5
Q113 G-7
(Q501) G-8
(Q502) F-11
(Q601) E-8

Note:

• Y : parts extracted from the conductor side.

• : Pattern from the side which enables seeing.

• : Pattern of the rear side.

– 13 – – 14 –

5-3. SCHEMATIC DIAGRAM • Refer to page 10 for IC Block Diagrams.

M-530V/535V/630V/635VK

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in Ω and 1/
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.

4

W or less unless otherwise

• Voltage is dc with respect to ground under no-signal
condition.
no mark : PB
( ) : REC

• Voltages are taken with a V OM (Input impedance 10 MΩ).
Voltage var iations may be noted due to normal produc­tion tolerances.

• Signal path.

E : PB
a : REC

– 15 – – 16 –

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.

6-1. CABINET SECTION

not supplied

11

SP901

33

9

10

26

25

8

32

31

7

4

24

• -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)

N

Parts Color Cabinet’s Color

N

12

29

14

A

3

27

28

MZ-530V-99

13

MIC901

15

16

18

34

6

5

• Accessories and packing materials are
given in the last of this parts list.

• Abbreviation
CND : Canadian model
EE : East European model
CH : Chinese model
E : Indication of country of origin
1E : No indication of country of origin

17

A

1 A-3021-217-A MAIN BOARD, COMPLETE (630V/635VK)
1 A-3021-219-A MAIN BOARD, COMPLETE (530V/535V)
2 3-704-197-31 SCREW (M1.4X3.0), LOCKING
3 3-831-441-99 SPACER, KNOB
4 3-034-687-01 TERMINAL (-), BATTERY

5 3-031-376-11 BUTTON (REC) (BLACK) (530V/535V)
5 3-031-376-21 BUTTON (REC) (SILVER) (630V/635VK)
6 3-031-375-01 BUTTON (PLAY) (BLACK) (530V/535V)
6 3-031-375-11 BUTTON (PLAY) (SILVER) (630V/635VK)
7 3-031-374-01 BUTTON (STOP) (BLACK) (530V/535V)

7 3-031-374-11 BUTTON (STOP) (SILVER) (630V/635VK)
8 3-034-686-01 TERMINAL (+), BATTERY
9 3-034-792-01 SCREW (2X2.5), TAPPING (B)
10 3-010-503-01 SPRING (B), BATTERY COIL
11 3-032-409-01 CABINET (FRONT) (SILVER) (530V:1E)

11 3-032-409-11 CABINET (FRONT) (SILVER) (530V :EXCEPT 1E)
11 3-032-409-61 CABINET (FRONT) (BLACK) (535V:1E)
11 3-032-409-71 CABINET (FRONT) (BLACK) (535V:EXCEPT 1E)
11 X-3377-234-1 CABINET (FRONT) SUB ASSY (BLACK)

(630V:AEP)

11 X-3377-236-1 CABINET (FRONT) SUB ASSY (SILVER)

(630V:1E)

11 X-3377-238-1 CABINET (FRONT) SUB ASSY (SILVER) (635VK)
11 X-3377-252-1 CABINET (FRONT) SUB ASSY (SILVER)

(630V:EXCEPT 1E)
12 X-3377-233-1 LID ASSY, CASSETTE (BLACK) (630V:AEP)
12 X-3377-239-1 LID ASSY, CASSETTE (BLACK) (535V)
12 X-3377-251-1 LID ASSY, CASSETTE (SILVER) (630V/635VK)

12 X-3377-253-1 LID ASSY, CASSETTE (SILVER) (530V)

* 13 3-033-185-01 COVER (AZ) (BLACK) (535V/630V:AEP)
* 13 3-033-185-11 COVER (AZ) (SILVER) (530V/630V/635VK)

14 3-031-382-01 CUSHION (MIC)
15 3-031-372-01 CASE, MICROPHONE

* 16 3-914-930-01 CUSHION (BATTERY CASE LID)

17 3-037-004-01 PLATE, SHIELD

Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark

18 3-031-371-01 LID, BATTERY CASE (BLACK) (535V/630V :AEP)
18 3-031-371-11 LID, BATTERY CASE (SILVER)

(530V/630V/635VK)
19 X-3377-318-1 CABINET (REAR) ASSY (SILVER) (530V)
19 X-3377-321-1 CABINET (REAR) ASSY (SILVER)

(630V/635VK)

19 X-3377-322-1 CABINET (REAR) ASSY (BLACK) (630V:AEP)

19 X-3377-323-1 CABINET (REAR) ASSY (BLACK) (535V)
20 3-035-255-01 SCREW (1.7X16) (BLACK)

(535V:1E/630V:AEP)

20 3-035-255-11 SCREW (1.7X16) (SILVER) (530V/

535V:EXCEPT 1E/630V/635VK)
21 3-358-363-41 PLATE, BLIND (BLACK) (535V/630V:AEP)
21 3-358-363-61 PLATE, BLIND (SILVER) (530V/630V/635V)

22 3-318-203-71 SCREW (B1.7X5), TAPPING (BLACK)

(535V/630V:AEP)

22 3-318-203-72 SCREW (B1.7X5), TAPPING (SILVER)

(530V/630V/635VK)
23 3-031-381-01 KNOB (FR) (BLACK) (535V/630V:AEP)
23 3-031-381-11 KNOB (FR) (SILVER) (530V/630V/635VK)
24 3-318-382-31 SCREW (1.7), TAPPING (630V/635VK)

25 3-328-319-01 STRAP, HAND
26 3-669-481-07 PIN (DIA.1X10), PARALLEL
27 1-468-399-11 LED UNIT (630V/635VK)
28 3-031-395-01 BRACKET (LED) (630V/635VK)
29 3-033-358-01 KNOB (VOR) (LIGHT GRAY) (530V/630V/635VK)

29 3-033-358-11 KNOB (VOR) (DARK GRAY) (535V/630V:AEP)
30 3-033-357-01 KNOB (F-PB) (LIGHT GRAY) (630V/635VK)
31 3-891-132-00 SCREW (M1.7X2.0), SPECIAL HEAD
32 7-623-505-01 LUG, 2
33 3-037-193-01 CUSHION (SP)

34 3-036-882-01 SPACER (JACK)
35 3-037-146-01 CUSHION (A)
MIC901 1-542-386-11 MICROPHONE, ELECTRET CONDENSER (MIC)
SP901 1-505-838-11 SPEAKER (3.6cm)

19

35

23

1

30

3

2

2

22

20

21

20

– 17 – – 18 –