Sony CFS-B31 Service Manual

TABLE OF CONTENTS
Section Title Page
SECTION. 12 GENERAL e::oscSsicasivaeriscttig aural dimen 3
SECTION 2. DISASSEMBLY
Zale sFROMECaDINGt a casGietiach omsetinsate nina a rae Ameins 4
SECTION 3. MECHANICAL ADJUSTMENTS...............5 5
SECTION 4. ELECTRICAL ADJUSTMENTS ............00. 5
SECTION 5. DIAGRAMS
5-1. IC Pin Function
* 10901 WPD1724G LCD Drive/Control ...........c:ccceseeeeeees 8
5-23. -BlOCK DIAQIAMM wiessdsccccssvevccvetavabaaaea tedasasvestenssdeadiae sa daaveete 9
5-3. Printed Wiring Board — Tuner/LCD Section —...........0. 12
5-4. Schematic Diagram —Tuner/LCD Section —........ ee 15
5-5. Printed Wiring Board — Audio/Power Section —............. 18
5-6. Schematic Diagram — Audio/Power Section —............. 21
SECTION 6. EXPLODED VIEWS
6-1. Front Cabinet Section 0.0... cc ceeesteceesneceeseteeteeeeieeenes 24
6-2. Rear Cabinet Section ........ ccc cccscssessessecenseceneecereeseeeaes 25
6-3. Mechanism Deck Section 1 (MF-200) ........ccesceeseceeenreees 26
6-4. Mechanism Deck Section 2 (MF-200) .........cccccceeeeeee 27
SECTION 7. ELECTRICAL PARTS LIST.............:ccceee 28
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK A\ OR DOTTED
LINE WITH MARK A\ ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
HOW TO CHANGED THE CERAMIC FILTERS
This model is used two ceramic filters of CF1 and CF2.
You must used same type of color marked ceramic filters in
order to meet same specifications.
Therefore, the ceramic filter must changed two pieces together
since it's supply two pieces in one package as a spare parts.

Sony CFS-B31 Specifications

General

Brand	Sony
Model	CFS-B31
Category	Cassette Player
Language	English