Sony WM-FS555 User Manual

WM-FS555/FS556
SERVICE MANUAL
SPECIFICATIONS
US Model
WM-FS555/FS556
Canadian Model
AEP Model
E Model
WM-FS555
Model Name Using Similar Mechanism NEW
MD Mechanism Type MF-WMFS555-114
9-873-595-03
2003B0200-1
© 2003.02
Sony Corporation
Personal Audio Company
Pubulished by Sony Engineering Corporation
RADIO CASSETTE PLAYER
Photo : WM-FS555
• Frequency
TV: 2-13 ch
WEATHER: 1-7ch
FM: 87.5-108 MHz
AM: 530-1710 kHz (North, Central and South America)
531-1602 kHz (Other counries)
•Power requirements
1.5 V DC battery size AA (R6) × 1
• Dimensions
Approx. 102.3 × 117.5 × 47.3 mm (4
1
/
8
× 4
3
/
4
× 1
7
/
8
inches)
including projecting parts and controls
• Mass
Approx. 219 g (7.8 oz) (main unit only)
• Supplied accessories
Stereo headphones or earphones (1)
Hand strap with belt clip (1)
Design and specifications are subject to change witout notice.
Ver 1.2 2003.02

Sony WM-FS555 Specifications

General

Type	Cassette Player
Brand	Sony
Model	WM-FS555
Tuner	FM/AM
Battery	2 x AA
Mega Bass	Yes
Waterproof	No
Headphones Output	3.5 mm
Power Supply	2 x AA batteries or AC adapter
Playback Functions	Play, Stop, Fast Forward, Rewind

Summary

SPECIFICATIONS

GENERAL INFORMATION

DISASSEMBLY

2-1. CHASSIS, H/P BOARD

Steps to remove the chassis and headphone board.

2-2. MAIN BOARD REMOVAL

Procedure for detaching and removing the main circuit board.

2-3. MECHANISM DECK DISASSEMBLY

Detailed steps for disassembling the mechanism deck.

2-4. BELT, MOTOR, AND HEAD REPLACEMENT

Instructions for replacing the belt, capstan/reel motor, and magnetic head.

ADJUSTMENTS

3-1. MECHANICAL ADJUSTMENTS

Procedures for mechanical calibration and torque measurements.

3-2. ELECTRICAL ADJUSTMENTS

Steps for electrical calibration, including tape speed.

DIAGRAMS

4-1. EXPLANATION OF IC TERMINALS

Detailed pinout and function of the system control IC.

4-2. BLOCK DIAGRAMS

Overall system block diagram illustrating signal paths.

4-3. PRINTED WIRING BOARDS - MAIN SECTION

Layout of components and traces on the main circuit board.

4-4. MAIN SECTION SCHEMATIC (1/2)

First part of the main circuit schematic diagram.

4-5. MAIN SECTION SCHEMATIC (2/2)

Second part of the main circuit schematic diagram.

4-6. IC BLOCK DIAGRAMS

Block diagrams for key integrated circuits.

EXPLODED VIEWS

5-1. CASSETTE LID SECTION

Exploded view and parts list for the cassette lid assembly.

5-2. CABINET SECTION

Exploded view and parts list for the main cabinet.

5-3. MECHANISM SECTION

Exploded view and parts list for the mechanism.

ELECTRICAL PARTS LIST

REVISION HISTORY