Sony cfs w 318 s service manual

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Frequency range

BFS-WBlSS/WBZBS

SERVICE MANUAL

E Model

PHOTO : CFS-WSZSS

Model Name Using Similar Mechanism CFS-W304
Tape Transport Mechanism Type MF~W30464

SPECIFICATIONS

Sales area FM MW SW
E
Unired Arab Emirates 816- '08 MHZ 530-1505 kHz SW1: 13-7 MHz
Saudi Arabia 87.6407 MHz 530-1505 kHz SW2: 7-22 MHz
Aerials FM/ SW: Telescopic aerial
MW / LW: Builrvin ferrite bar aerial
Recording system knack, Z-channel stereo
Frequency response $040,000 Hz
Speakers Two way _
100:1(4 inch) dia. full range x 2
2 an (/n inch) dia. tweeter x 2
Outputs Headphones jack (stereo minijaclr) for
1568 ohm impedance headphones
Maximum power output 5.2 W (2.6 W 4~ 26 W)

Power rcquiremems

I 10-120 V. 220-240 V AC adjustable
50/60 Hz
9 V DC, six R20 (size D) balleries

Power consumption 14 W

Battery life
Batteries FM recording Tape playing
Sony SUM.) (NS) Approx 12 hours Approx. 7 hours
Sony AMI alkaline Approx, 24 hours Approx. 14 hours

Dimensions Approx. 560 x 157.5 x 156 mm (w/h/d)
(22 /- x 6 /A x 6 /r inches)
incl. projecting pans and controls

not incl. handle
Mass Approx. 3.3 kg (7 lb 4 oz) incl. batteries
Accessory supplied Mains lead (1)

Design and specifications subject to change without not-ice.

"do
This appliance conforms with EEC Directive 87/ 308/ EEC regarding
interference suppression.

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SON Y;

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HOW TO CHANGED THE CERAMIC FILTERS

This model is used three ceramic filters of CH, CF3 and CF4.
You must used same type of color marked ceramic filters in
order to meet same specifications.

Therefore, the ceramic filter must changed three pieces together
since its supply three pieces in one package as a spare pans.

markl markz mark] mm: Center Frequency
red - l0.70MHz
blue - 10.67MH2
orenge - [0.73MHz
markz mark1 black - I0.64MHz

white - 10.7mm
white white 10.7SMHz
yellow - 10.79MI-Iz

SAFETY-R ELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY MARK A 0R 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 PUB-
LISHED BY SONY.

1. GENERAL
Location ofcomm's ........................... ............... ... ............. ....3
z. DISASSEMBLV
24. Cassette Holder ................................................... 4
2-2. From Cabinet 4
2-3. Dial Pointer 5
2-4. MD Block 5
2-5 Tuner Board '- 6
26. Audio Board 6
2.7, Motor 7
2.5, Head Base and Head ........i................ ......... ............t.......7
3_ MECHANICAL ADUSTMENTS ........ g
4. ELECTRICAL ADJUSTMENTS -- -------- s
5. DIAGRAMS
5,1~ Block Diagram .......................... ........................... H
5.2 Circuit Boards Location ....................... ..... .................... 3
5.3_ Semiconductor Lead Layouts ..................... . .................... 14
5-4. Printed Wiring Boards-Audio Section- ~~~~~~~ """ ' ~~~~ IS
5's. Schematic Diagram-Audio Section- l7
5-6r Schematic Diagram- Tuner Section- -------------- ----- 20
5-7r Printed Wiring Board-Tuner Section- """"" ' ~~~~~~~~~~~~~~~~~~ 23

6. EXPLODED VIEWS

6-l .
6-2
6-3.
6-4
6-5
6-6.

Rear Cabinet Section ............... ..... .......................... 24
Front Cabinet Section .............................. 25
Deck A Tape Mechanism Section (I) ........................ 27
Deck A Tape Mechanism Section (2)

" 28
Deck B Tape Mechanism Section (I)

Deck B Tape Mechanism Section (2) 0

7_ ELECTRICAL PARTS LIST .................... 3]