Sony cfs b 31 l service manual

Page 2

TABLE OF CONTENTS
Section ILILQ BESS

SECTION 1. GENERAL ............................................ t 3
SECTION 2. DISASSEMBLY

2-1. From Cabinet 4
SECTION 3. MECHANICAL ADJUSTMENTS ................ 5
SECTION 4. ELECTRICAL ADJUSTMENTS ............... 5

SECTION 5, DIAGRAMS
5-1. IC Pin Function

- ICQOI pPD1724G LCD Drive/Control .
5-2. Block Diagram .....................................
5-3. Printed Wiring Board - Tuner/LCD Section -.
5-4. Schematic Diagram -Tuner/LCD Section -
55, Printed Wiring Board - Audio/Power Section -
5~6l Schematic Diagram - Audio/Power Section -

SECTION 6. EXPLODED VIEWS
64. Front Cabinet Section . 24
62. Rear Cabinet Section ,.
6~3. Mechanism Deck Section 1 (MF<200)
6-4t Mechanism Deck Section 2 (MF'ZOO)

SECTION 7. ELECTRICAL PARTS LIST .......................... 28

SAFETY-RELATED COMPONENT WARNING I!

COMPONENTS IDENTIFIED BV MARK A on 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 CH and CH

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.

mark center frequency
mark red 1070Ml-Iz
blue 10.67M.I-Iz
orange IOt73MHz
black 10,64MHz
white 10.76MHz