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Sony WM-FX673 User Manual

Sony WM-FX673
25 pages
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MICROFILM
SERVICE MANUAL
RADIO CASSETTE PLAYER
Canadian Model
AEP Model
UK Model
Australian Model
WM-FX673
E Model
WM-FX673/FX877
Chinese Model
Tourist Model
WM-FX877
SPECIFICATIONS
WM-FX673/FX877
Photo: WM-FX673
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trade-
marks of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism WM-EX670/EX672
Tape Transport Mechanism Type MT-WMEX672-162
Ver 1.0 1999. 03
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Sony WM-FX673 Specifications

General IconGeneral
TypeCassette Player
BrandSony
ModelWM-FX673
Media TypeCassette
TunerFM/AM
Power Source2 x AA batteries
Playback FunctionsPlay, Stop, Fast Forward, Rewind
Mega BassYes
Auto ReverseYes
HeadphonesIncluded

Summary

Product Specifications

Battery Life Details

Details approximate battery life in hours for different battery types and operational modes.

Servicing Notes and Safety

Repair Precautions and Warnings

Covers flexible circuit board repair, chip component replacement, and critical safety component warnings.

Servicing Procedures

Mode Setting Procedures

Details the steps for setting playback modes (PLAY, FF, REW) using directional and preset switches.

General Operation Overview

Control Functions by Model

Illustrates controls and operation for different model variations (FX673 and FX877).

Disassembly Instructions

Case Block Assembly Removal

Provides detailed steps and diagrams for removing the main case block assembly.

Adjustments and Calibration

Mechanical and Electrical Adjustment Procedures

Covers torque measurement, tape speed adjustment, and initial tuning calibration.

System Diagrams

Block Diagrams for Tuner and Main Sections

Presents block diagrams illustrating signal paths for the tuner and main sections.

Printed Wiring Board Layouts

Main Board Component Placement

Shows component placement on the main board's pattern and parts face sides.

Integrated Circuit (IC) Details

IC Pin Function Descriptions

Details the pin functions for key ICs, including system controller and motor driver.

Exploded Views

Case Section Parts Identification

Provides an exploded view and part numbers for the case section components.

Mechanism Deck Exploded View

Mechanism Deck Part Identification

Displays an exploded view and part numbers for the mechanism deck components.

Electrical Parts List

Key Component Lists

Lists capacitors, diodes, ICs, resistors, transistors, and switches with part numbers.

Component Lists Summary

Resistors, Transistors, and Switches

Lists resistors, transistors, switches, and other electronic components with part numbers.

Accessories and Manuals

Accessory Parts and Documentation

Lists accessories, battery chargers, and instruction manuals with their part numbers.

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