Sony cfs 904 l service manual

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SERVICE MANUAL

[IFS-90M

East European Model

MEGAMSS

SPECIFICATIONS

Tuner frequency range

FM MW LW SW
65~ 531 v 153-- 5.95-
108MH2 1602kHz 279kHz l8MHz

Frequency response 80Hz-10,000Hz
Speakers 10cm (4m) dia. lull rangeXZ

Model Name Using Similar Mechanism CFS-ZO4L

Tape Transport Mechanism Type

MF-204~64

Outputs Headphones jack (stereo miniiack) for 8-3000hm

impedance headphones
Maxnmum power output 4.0W (2.0W+2.0W)
Power requirements

220-230V AC, 50Hz

9V DC, six R14 (size C) batteries

DC IN 9V jack accepts: AC power adaptor (supplied)
DCCEXQOL car battery cord (not supplied) for use with

12V car battery

Battery life Batteries FM recording

Playing

Sony SUM~2(NS) Approx. llhours

Approx. hours

Sony AM2 alkaline Approx. 23hours

Approx. 30hours

Dimensions Approx 470x150><154mm (w/h/d)
(185/3 X6X6/flinches)inol. projecting parts and con-
trols

Weight Approx. 26kg (SI!) 1202) incl. batteries

Accessory supplied

Design and specifications subject to change Without notice

AC power adaptor (AC»E905) (1)

RADIII CASSETTE-BORDER

SONY.»

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TABLE OF CONTENTS

Section Title Page
1. GENERAL

1-]. Parts Identification .......................... 3
2. DISASSEMBLY

2-]. Removal of Cassette Lid ........................ 4
2-2. Removal of Front Cabinet ........................ 4
2-3. Dial Pointer Setting .............................. 5
3. MECHANICAL ADJUSTMENTS .................. 5
4. ELECTRICAL ADJUSTMENTS

4-1. Tape Recorder Section .......................... 6
4-2 Tuner Section .................................... 6
5. DIAGRAMS

5-1. Printed Wiring Board-Tuner Section- .......... 8
5-2 Schematic DiagramiTuner Sectioni ............ 9
5-3. Printed Wiring Boards-Audio Sectioni ........ 11
5-4. Schematic Diagram-Audio Section- ............ 13
5-5. Semiconductor Lead Layouts .................... 15
6. EXPLODED VIEWS

6-1, Front Cabinet Section .......................... 16
62. Rear Cabinet Section ............................ 17
6-3. Tape Mechanism Section (1) .................... 18
6-4. Tape Mechanism Section (2) .................... 19
7. ELECTRICAL PARTS LIST ...................... 20

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY MARK A 0R DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL T0 SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB»
LISHED BY SONY.