Sony WM-FX171 User Manual

WM-FX171/FX173/FX177
Canadian Model
WM-FX173/FX177
AEP Model
E Model
WM-FX171/FX173
SERVICE MANUAL
RADIO CASSETTE PLAYER
MICROFILM
SPECIFICATIONS
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MF-WMFX171-114
• Frequency range
FM : 87.6 - 107.9 MHz
AM : 531 - 1,602 kHz
• Power requirements
3V DC batteries R6 (AA) × 2 / External DC 3V power sources
• Dimensions
FX173 : 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
FX171/FX177 : 88.5 × 118.6 × 37.6 mm
(3
1
/2 × 4
3
/4 × 1
1
/2 inches) (w / h / d) incl. projecting parts and controls
• Mass
FX173 : Approx. 165 g (5.9 oz) / Approx. 245g (8.7 oz) incl. batteries
and a cassette
FX171/FX177 : Approx. 160 g (5.7 oz) / Approx. 240 g (8.5 oz) incl.
batteries and a cassette
• Supplied accessories
Stereo headphone or Stereo earphones (1) / Belt clip (1)
Design and specifications are subject to change without notice.
Photo : WM-FX173

Sony WM-FX171 Specifications

General

Brand	Sony
Model	WM-FX171
Category	Cassette Player
Language	English

Summary

Specifications

Section 1 General

Flexible Circuit Board Repairing

Guidelines for soldering and handling flexible circuit boards during repair.

Notes on Chip Component Replacement

Precautions for replacing chip components, especially tantalum capacitors.

Section 2 Disassembly

2-1. Cabinet (Front) Assy

Procedure for removing the front cabinet assembly of the player.

2-2. Main Board

Steps to access and remove the main circuit board.

2-3. Cassette Lid

Instructions for detaching and removing the cassette lid.

2-4. Mechanism Deck

Guide for removing the main tape transport mechanism.

2-5. Belt, Motor (Reel/Capstan)

Details on accessing and replacing the drive belt and motor.

Section 3 Mechanical Adjustment

Section 4 Electrical Adjustment

Tuner Section

Section 5 Diagrams

5-1. Block Diagram

Overall functional block diagram of the player's electronic system.

5-2. Schematic Diagram (FX171/FX177 Models)

Detailed circuit diagram for FX171 and FX177 models.

5-3. Printed Wiring Board (FX171/FX177 Models)

Layout of the printed circuit board for FX171 and FX177 models.

5-4. Printed Wiring Board (FX173 Model)

Layout of the printed circuit board for the FX173 model.

5-5. Schematic Diagram (FX173 Model)

Detailed circuit diagram for the FX173 model.

5-6. IC Block Diagrams

Block diagrams for the integrated circuits used in the player.

Section 6 Exploded Views

6-1. Cabinet Section

Exploded view of the player's cabinet and related parts.

6-2. Main Board Section

Exploded view detailing the main circuit board and its components.

6-3. Mechanism Section-1 (MF-WMFX171-114)

First part of the exploded view for the tape mechanism.

6-4. Mechanism Section-2 (MF-WMFX171-114)

Second part of the exploded view for the tape mechanism.

Section 7 Electrical Parts List