Sony WM-FX373 User Manual

SERVICE MANUAL
RADIO CASSETTE PLAYER
US Model
WM-FX375
Canadian Model
Tourist Model
WM-FX373
AEP Model
E Model
Chinese Model
WM-FX373/FX375
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MT-WMEX372-114
• Frequency range
FM: 65.0 – 107.9 MHz (East European Model)
87.5 – 108 MHz (Italian, Saudi Arabia Model)
87.6 – 108 MHz (US, Canadian Model)
87.6 – 107.9 MHz (Other Model)
AM: 526.5 – 1,606.5 kHz (Italian, Saudi Arabia Model)
530 – 1,710 kHz (US, Canadian Model)
531 – 1,602 kHz (Other Model)
• Power requirements
3V DC batteries R6 (AA) × 2/External DC 3V power sources
• Dimensions
88.5 × 118.6 × 38.2 mm
(3
1
/2 × 4
3
/4 × 1
9
/16 inches) (w/h/d) incl. projecting parts and controls
• Mass
Approx. 170 g (6.0 oz)
Approx. 250 g (8.9 oz) incl. batteries and a cassette
• Supplied accessories
Stereo headphones or Stereo earphones (1)/Belt clip (1)
Design and specifications are subject to change without notice.
SPECIFICATIONS
WM-FX373/FX375
Photo: WM-FX373
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol ; are trade-
marks of Dolby Laboratories Licensing Corporation.
9-923-344-12 Sony Corporation
2004C05-1 Personal Audio Company
© 2004.03 Published by Sony Engineering Corporation
Ver 1.2 2004.03

Sony WM-FX373 Specifications

General

Brand	Sony
Model	WM-FX373
Category	Cassette Player
Language	English

Summary

Servicing Notes

Chip Component Replacement Precautions

Advises on handling and reusing chip components, especially tantalum capacitors.

Flexible Circuit Board Repairing Tips

Offers guidance on soldering techniques for flexible circuit boards to prevent damage.

Section 2: Disassembly Procedures

Cabinet and Main Board Removal

Details the steps for removing the rear cabinet and main board assembly.

Mechanism Deck and Component Removal

Cassette Holder Assembly and Disassembly

Section 3: Mechanical Adjustments

Mechanical Adjustment Precautions

Torque and Tape Pulling Force Measurement

Section 4: Electrical Adjustments

Precautions and Tape Speed Adjustment

Covers general electrical adjustments precautions and the tape speed adjustment procedure.

FM Tuning Adjustments and Locations

Details FM frequency coverage and tracking adjustments and their locations.

AM Tuning Adjustments and Locations

Details AM IF, frequency coverage, and tracking adjustments and their locations.

Section 5: Diagrams

Printed Wiring Board Layout

Schematic Diagram and IC Blocks

Section 7: Electrical Parts List

Component Categories and Details