Sony TCM-500DV User Manual

SERVICE MANUAL
CASSETTE-CORDER
US Model
Canadian Model
AEP Model
E Model
Tourist Model
Model Name Using Similar Mechanism New
Tape Transport Mechanism Type MT-500-175
SPECIFICATIONS
TCM-500DV
Ver 1.2 2004. 04
Recording system
2-track 1 channel monaural
Tape speed
4.8 cm/s or 2.4 cm/s
Frequency range
350 - 6 300 Hz using nomal (TYPE I) cassette (with REC
TIME/PLAY MODE switch at “NORMAL”)
Speaker
Approx. 3.6 cm (1
7
/
16
in.) dia.
Power output
450 mW + 450 mW (at 10 % harmonic distortion)
Input
Microphone input jack (minijack)
sensitivity 0.2 mV for 3kΩ or lower impedance microphone
Output
Earphone jack (minijack) for 8 -300Ω earphone
Variable range of the tape speed
From approx. +30% to –15% (with REC TIME/PLAY
MODE switch at “NORMAL”)
Power requirements
• 3 V DC, batteries AA (R6) x 2
• External DC 3 V power sources
Dimensions (w/h/d) (incl. projecting parts and controls)
Approx. 87.6 x 113.0 x 37.1 mm
(3
1
/
2
x 4
1
/
2
x 1
1
/
2
in.)
Mass (main unit only)
Approx. 215 g (7.6 oz.)
Design and specifications are subject to change without notice.
9-877-111-03
2004D02-1
© 2004.04
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation

Sony TCM-500DV Specifications

General

Brand	Sony
Model	TCM-500DV
Recording Media	Compact Cassette
Recording System	Analog
Signal-to-Noise Ratio	50 dB
Wow and Flutter	0.25% (WRMS)
External Microphone Input	Yes
Headphone Jack	Yes
Battery Type	AA
Number of Batteries	2
Type	Cassette Player
Microphone	Built-in
Power Source	Battery
Fast Forward/Rewind Time	Approx. 90 seconds

Summary

Servicing Notes

Flexible Circuit Board Repairing

Guidelines for repairing flexible circuit boards.

Chip Component Replacement Notes

Precautions for replacing chip components.

Disassembly Procedures

Disassembly: Cabinet Rear and Lid

Steps to disassemble the cabinet rear and lid assembly.

Disassembly: Main Board

Procedure for removing the main board.

Disassembly: Mechanism Deck

Steps to detach the mechanism deck.

Disassembly: Head, Belt, and Motor

Procedures for accessing the head, belt, and motor.

Mechanical Adjustments

Electrical Adjustments

Tape Speed Adjustment Procedure

Steps to calibrate the tape speed.

Diagrams and Schematics

Printed Wiring Board - Main Board (Side A)

Printed Wiring Board - Main Board (Side B)

Schematic Diagram - Main Board (Part 1)

Electrical schematic for the main board (first half).

Schematic Diagram - Main Board (Part 2)

Electrical schematic for the main board (second half).

IC Block Diagrams

Electrical Parts List