Sony M-635VK User Manual

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SERVICE MANUAL
M-530V/535V/630V/635VK
MICROCASSETTE
TM
-CORDER
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.)
SPECIFICATIONS
Ver 1.0 1999. 02
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
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MZ-530V-99
US Model
Canadian Model
M-530V/535V/630V/635VK
AEP Model
E Model
M-530V/535V/630V
Chinese Model
M-630V
Photo : M-530V

Sony M-635VK Specifications

General

Brand	Sony
Model	M-635VK
Headphones Output	Yes
Battery Type	AA
Type	Cassette Player
Speaker	Yes
Power Source	Battery

Summary

Product Specifications

Supplied Accessories

Lists the accessories included with the product.

Safety Component Warnings

General Information

Recording Operations

Explains how to record audio using the device.

Playing Cassette Tapes

Details the process for playing recorded cassette tapes.

Disassembly Procedures

Cassette Lid Assembly Disassembly

Step-by-step guide to remove the cassette lid assembly.

Battery Case Lid Disassembly

Instructions for disassembling the battery case lid.

Rear Cabinet Assembly Disassembly

Steps to remove and disassemble the rear cabinet.

Main Board Removal

Procedure for removing the main circuit board.

Mechanism Deck Removal

Steps to remove the mechanism deck.

LED Unit Disassembly

Instructions for removing the LED unit.

Ceramic Head Disassembly

How to disassemble the ceramic head component.

Mechanical Adjustments

Torque Measurement Procedures

Details the process for measuring torque.

Tape Tension Measurement

Describes how to measure tape tension.

Electrical Adjustments

Head Azimuth Adjustment

Guide for adjusting the record/playback/erase head azimuth.

Tape Speed Adjustment

Procedure for adjusting the tape speed settings.

Circuit Diagrams

Integrated Circuit Block Diagrams

Visual representation of the main ICs and their functions.

System Block Diagram

Overall block diagram of the device's system.

Printed Wiring Board Layout

Diagram showing the layout of components on the printed circuit board.

Schematic Diagram

Detailed schematic of the device's circuitry.

Exploded Views

Cabinet Section Exploded View

Exploded view of the cabinet and its related parts.

Mechanism Deck Exploded View

Exploded view of the mechanism deck and its components.

Electrical Parts List