Sangean WFR-20 Service Manual

WFR-20
Wi-Fi Internet Radio
CONTENTS
Specification ………………………………………………………………………………………………………2
Block Diagram ………………………………………………………………………………………………………3
Main PCB Top View…………………………………………………………………………….……….……………4
Main PCB Bottom View.………………………………………………………………………….……..………..…..5
Control PCB Top View…………………………………………………………………………….……….……………6
Control PCB Bottom View.………………………………………………………………………….……..………..…7
Wiring Diagram..….………………………………………….………………….….……………..………….8
Troubleshooting Flow Chart..….………………………………………….……………….….……………..…….9-12
Electrical Parts List………………………………………………………………………………....……………13-15
Mechanical Parts List……………………………………………………………………….………….…………….16
Exploded Views.…………………………………………………………………………….…………….……………17
IC Circuit Block Diagram…………………………………………..…………….………………………………18-21
IC and Transistor Voltage Chart….……………………………..…………………………….…………………22-25
Semiconductor Lead Identifications……………………………………………………………………..……..…26
Main Schematic Diagram………………………………………….………………………………………………27
Control Schematic Diagram……………………………………….…………………………………………………28

Sangean WFR-20 Specifications

General

Radio type	Portable
Product color	Black
Special features	Support MP3, WMA, AAC, WAV, AIFF, FLAC, Real Audio & AU audio format.