Sony CFS-1085S Bedienungsanleitung

CFS-1085S

E Model

RADIO CASSETTE-CORDER

SERVICE MANUAL

SPECIFICATIONS

Model Name Using Similar Mechanism CFS-1065S

Tape Transport Mechanism Type MF-1055-117

9-873-310-03

2003L02-1

Ver 1.2 2003.12

• Frequency range

FM: Saudi Arabia: 87.5–107 MHz/

Other countries: 87.5–108 MHz

MW: Saudi Arabia: 530–1 605 kHz/

Other countries: 530-1 611 kHz/

SW1: 2.3–7 MHz/SW2: 7–22 MHz

•IF FM: 10.7 MHz,

MW/SW: 455 kHz

• Antennas FM/SW: Telescope/

MW: Built-in ferrite bar

• Recording system 4-track, 2-

channel stereo

• Frequency response 80–10 000Hz

• Speakers Woofer: 10 cm (4 inches)

dia., 6 Ω,cone type/Tweeter: 2 cm

(13 ⁄16 inch) dia.

• Input CD/TV LINE IN jacks

(phono jacks), sensitivity 0.436 V,

input impedance 47 kΩ

• Output Headphones jack (stereo

minijack), for 6–32 Ωimpedance

headphones

• Maximum Power output

10 W

• Battery life

FM Recording: Sony R20P: Approx.

5 hours/Sony LR20 alkaline:

Approx. 10 hours

Playback: Sony R20P: Approx. 1.5

hours/Sony LR20 alkaline:

Approx. 3 hours

• Power requirements

110–120V/220–240 VAC

selectable, 50/60 Hz

9V DC, six R20 (size D) batteries

• Power consumption

AC 14 W

• Dimensions Approx. 579 x 206 x

197 mm (w/h/d) (22 7⁄8x 8 1⁄8x

7 7⁄8inches) incl. projecting parts

and controls, not incl. handle

• Mass Approx. 4.6 kg (10 lb 2 oz)

incl. batteries

• Supplied accessory AC power

cord (1)

Design and specifications are

subject to change without notice.

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

CFS-1085S

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE

WITH MARK !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.

TABLE OF CONTENTS

1. GENERAL .......................................................................... 3

2. DISASSEMBLY

2-1. Power Board ......................................................................... 4

2-2. LED Board, GE SW Board, MEGA BASS Board................ 5

2-3. MAIN Board, MIC Board, VOL Board ................................ 5

2-4. Mechanism Deck, Tuner Board ............................................ 6

2-5. Record/Playback Head (HRP101), Erase Head (HE301),

Belt, Motor (M601) ............................................................. 6

2-6. Dial Pointer Installation ........................................................ 7

3. ADJUSTMENT .................................................................. 8

4. DIAGRAMS

4-1. Circuit Boards Location ...................................................... 12

4-2. Block diagrams ................................................................... 13

4-3. Printed Wiring Board – Main Section –.............................. 14

4-4. Schematic Diagram – Main Section – ................................ 15

4-5. Schematic Diagram – Tuner Section –................................ 16

4-6. Printed Wiring Board – Tuner Section – ............................. 17

4-7. IC Block Diagrams ........................................................... 18

5. EXPLODEDVIEWS

5-1. Rear Cabinet Section........................................................... 20

5-2. Front Panel Section ............................................................. 21

5-3. Speaker Section................................................................... 22

5-4. Mechanism Deck Section (1) .............................................. 23

5-5. Mechanism Deck Section (2) .............................................. 24

6. ELECTRICAL PARTS LIST .................................25

CFS-1085S

SECTION 1

GENERAL This section is extracted from

instruction manual.

Location of controls

PHONES FUNCTION

VOLUME

SOUND SELECT

BAND FINE TUNING

TUNING

FM STEREO

CD/TV

LINE IN MIC

MAXI BASS

OPR/

BATT

CFS-1085S SECTION 2

DISASSEMBLY

2-1. POWER BOARD

Note: Disassemble the unit in the order as shown below.

Note: Follow the disassembly procedure in the numerical order given.

Set Power board

LED board, GE SW board, Mega bass SW board

Record/playback head (HRP101), Erase head (HE301),

Belt, Motor (M601)

Main board, MIC board, VOL board

Mechanism deck, Tuner board

Cabinet (rear)

Cabinet (front)

Screws (3X4)

Power board

Tuner board

(CNP1)

Screws (3X4

)

Screws (3X10)

Main board

(CNP305)

Cabinet (front)

Cabinet (rear)

CFS-1085S

2-3. MAIN BOARD, MIC BOARD,VOL BOARD

2-2. LED BOARD, GE SW BOARD, MEGA BASS SW BOARD

Screw (2.6X8)

Screws (2.6X8)

GE SW board

Bracket (B) board

Screws (2.6X8)

LED board

Mega bass SW board

Cabinet (front)

Knob (job)

Screw (2.6X8)

Lever (rec)

MIC board Main board

Bracket (B) board

VOL board

Cabinet (front)

Knob (VOL)

Screws (2.6X8)

Claws

Screws (2.6X8)

CNP301

CNP304

CNP302

CNP303

CNP306

CFS-1085S

2-4. MECHANISM DECK,TUNER BOARD

2-5. RECORD/PLAYBACK HEAD (HRP101), ERASE HEAD (HE301), BELT, MOTOR (M601)

Screw (3X8)

Tuner board

Screws (2.6X8)

Screws (2.6X8

)

Screw (2.6X5)

Mechanism deck

Pointer chassis

Chassis

Pointer

Knob (tun)

Cabinet (front)

(HE301)

(HRP101)

Claws

Record / playback head

Erase head

Motor

(M601)

Belt

Claws

Screws (2.6X5)

CFS-1085S

2-6. DIAL POINTER INSTALLATION

PVC shaft

Chassis

Knob (tune)

Chassis

Window

Pointer

Notch

Tuner board

MIN

(Fig-2)

MIN

Screw (2.6X5)

(Fig-1)

1Turn the PVC shaft fully counterclokwise.

2Place the pointer in the chassis groove.

3Line up the tip of the pointer with the notch in the chassis.

(Fig-1)

4Attach so that the knob (Tune) is at the position shown in

Fig-2.

5Fasten the knob (tune) to the PVC shaft with the screw.

CFS-1085S

3-2. ELECTRICAL ADJUSTMENTS

TAPE SECTION

z Switch location

FUNCTION switch................. TAPE (RADIO OFF)

SOUND SELECT.................... FLAT

VOLUME................................. mechanical center

MEGA BASS............................ OFF

TestTape

Type Signal Used for

WS-48B 3kHz, 0dB Tape Speed Adjustment

3-1. MECHANICAL ADJUSTMENTS

PRECAUTION

1. Clean the following parts with a denatured-alcohol-moistened

swab :record/playback head pinch roller

erase head rubber belts

capstan

2. Demagnetize the record/playback head with a head demagne-

tizer. (Do not bring the head demagnetizer close to the erase

head.)

3. Do not use a magnetized screwdriver for the adjustments.

4. The adjustments should be performed with the rated power sup-

ply voltage (9V) unless otherwise noted.

1.Torque Measurement

Mode Torque Meter Meter Reading

2.95 – 6.86 mN•m

Playback CQ-102C (30 – 70 g•cm)

(0.42 – 0.97 oz•inch)

0.15 – 0.53 mN•m

Back Tension CQ-102C (1.5 – 5.5 g•cm)

(0.021 – 0.076 oz•inch)

5.4 – 13.2 mN•m

Rewind CQ-201B (55 – 135 g•cm)

Fast Forward (0.77 – 1.87 oz•inch)

2.TapeTension Measurement

Mode Torque Meter Meter Reading

FWD CQ-403A more than 100g (3.53 oz)

SECTION 3

ADJUSTMENTS

0dB = 0.775 V

CFS-1085S

Tape Speed Adjustment

Procedure :

Mode : playback

Adjustment Values :

Digital frequencycounter

2,910 to 3,090Hz

Frequency difference between the begining and the end of the

tape should be within 1% (30Hz)

Adjustment Values :

tape speed adjustment

control inside motor

set

test tape

WS-48B

(3kHz, 0dB) 32

Ω

digital frequenc

counter

phones jack

CFS-1085S

TUNER SECTION

MW Section

Procedure :

BAND Switch : MIN

FINE TUNE control : mechanical center

SW Section

Procedure :

BAND Switch : SW1, SW2

FINE TUNE control : mechanical center

FM Section

Procedure :

BAND Switch : FM

FINE TUNE control : mechanical center

( ) : Saudi Arabia model

AM IF ADJUSTMENT