Sony CFM-D1JMK2 Manuale utente

Model Name Using Similar Machanism NEW

Tape Transport Mechanism Type MF-D1

SERVICE MANUAL

SPECIFICATIONS

RADIO CASSETTE-CORDER

Ver 1.0 2002.10

9-874-208-01

2002J0200-1

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

E Model

CFM-D1JMK2/D1MK2

Tourist Model

CFM-D1JMK2

Frequency range

FM: Saudi Arabia : 87.5 - 107 MHz

Tourist model: 87.5 - 107 MHz

Other models: 87.5 - 108 MHz

MW: 530 - 1 605 kHz

SW1: 2.3 - 7 MHz

SW2: 7 - 22 MHz

Aerials

FM/SW: Telescopic aerial

MW: Built-in ferrite bar aerial

Recording system

2-track 1 channel mono

Frequency response

50 - 8000 Hz

Speaker

Full range: 7.7 cm (3 1⁄8inches) dia., 8Ω,double cone type (2)

Outputs

Earphone jack

For 32 Ωimpedance earphone

Maximum power output

2 W

Power requirements

110 - 127, 220 - 240 V AC selectable, 50/60 Hz

6 V DC, 4 R20 (size D) batteries

Power consumption

AC 6 W

Battery life

FM recording: Sony R20P: approx. 20 h

Sony alkaline LR20: approx. 48 h

Tape playback: Sony R20P: approx. 18 h

Sony alkaline LR20: approx. 30 h

Dimensions

Approx. 330 x 147 x 120 mm (w/h/d)

(13 x 5 7⁄8x 4 3⁄4inches) (incl. projecting parts)

Mass (incl. batteries)

Approx. 2.2 kg (4 lb 14 oz)

Supplied accessory

Mains lead (1)

Design and specifications are subject to change without notice.

CFM-D1JMK2/D1MK2

TABLE OF CONTENTS

Section Title Page

Specifications ................................................................................. 1

1GENERAL

Location and Function of Controls ......................................... 3

2. DISASSEMDLY .................................................................... 4

3. ADJUSTMENTS

3-1. Mechanical Adjustments ................................................. 8

3-2. Electrical Adjustments ..................................................... 8

4. DIAGRAMS

4-1. Block Diagram ............................................................... 11

4-2. Schematic Diagram (1/2) ............................................... 12

4-3. Schematic Diagram (2/2) ............................................... 13

4-4. Printed Wiring Boards ................................................... 14

5. EXPLODED VIEWS

5-1. Front Cabinet Section .................................................... 16

5-2. Rear Cabinet Section ..................................................... 17

5-3. Mechanism Deck Section (1) ........................................ 18

5-4. Mechanism Deck Section (2) ........................................ 19

6. ELECTRICAL PARTS LIST ............................................. 20

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.

CFM-D1JMK2/D1MK2

LOCATION AND FUNCTION OF CONTROLS

1TAPE OPERATION BUTTONS

XPAUSE

xZSTOP/EJECT

mFF (CUE)

MREW (REVIEW)

nPLAY

zREC

2EARPHONE v

3VOLUME knob

4TONE knob

5OPR/BATT indicator

6FUNCTION SELECTOR (RADIO/TAPE (RADIO OFF))

7BAND SELECTOR (FM/SW1/SW2/MW)

8TUNING knob

9FINE TUNING knob

0MIC

SECTION 1

GENERAL

CFM-D1JMK2/D1MK2

SECTION 2

DISASSEMBLY

2-1. CABINET (FRONT ) ASSY

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

Set Cabinet (front) assy EARPHONE board,

MAIN board POWER board

E.C.M board, MD assy (MF-D1)

Record/playback head (HRP101),

Belt, Reel/capstan motor (M101)

Screws +BVTP3X1

Screws +BVTP3X14

Lid , Battery case

Cabinet (rear) assy

Push the STOP/EJECT button

Connector (CN104)

Cabinet (front) assy

CFM-D1JMK2/D1MK2

2-2. E.C.M BOARD, MD ASSY(MF-D1)

2-3. RECORD/PLAYBACK HEAD (HRP101), BELT, REEL/CAPSTAN MOTOR (M101)

Two claws

Chassis (tuning)

Connector (CN102)

Connector (CN101)

MD assy (MF-D1)

E.C.M board

Two screws (+BVTP 3X10)

Cabinet (rear) ass

Screw (M2X3, +Bind)

Screw (M2X7, +AZIMUTH)

Rug (B3) Spring

Record/playback head (HRP101)

Screw, MB

Motor coller screw

Bracket, motor

Belt

Reel/capstan motor (M101

)

CFM-D1JMK2/D1MK2

2-4. EARPHONE BOARD, MAIN BOARD

2-5. POWER BOARD

Knob (TUNING

)

Knob (FINE TUNING)

Gear, tuning

Connector (CN105)

Screw (+BVTP 3X10)

MAIN board

Three screws (+BVTP 3X10)

EARPHONE board

Two knobs (VOLUME/TONE)

Two knobs (FUNCTION/BAND)

Cabinet (rear) assy

Three screws (+BVTP 3X10)

Shield plate

POWER board

Cabinet (rear) ass

CFM-D1JMK2/D1MK2

2-6. DIAL POINTER SETTING 2

Tuning gear

Knob(Tuning) assy

Tuning capacitor gea

Tuning capacitor gear

1. Turn the Tuning Capacitor Gear all the way in

the direction of the arrow until it is positioned

at the detent

( ) position Fig-1.

2. Turn the Tuning Gear until its position

( )

fits into the detent

( ) of the Tuning

Capacitor Gear.

Tuning gear

Screw +BVTP3X1

Screw +BVTP3X10

Tuning chassis

Pointer rack

Tuning chassis

Pointer

rack

Scribe lines

Tuning chassis

Fig-1

Fig-2 Fig-3

3. Line up the Pointer Rack with the scribe line

as shown in Fig-2.

4. Install so that the Tuning Chassis intermeshes

with the Pointer Rack as shown in

of Fig-3.

5. Fasten the Tuning Chassis to the cabinet (Rear)

with the screw.

CFM-D1JMK2/D1MK2

SECTION 3

ADJUSTMENTS

3-1. MECHANICAL ADJUSTMENTS

AND MEASUREMENTS

PRECAUTION

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

moistened swab :

record/playback head pinch roller

erase head rubber belts

capstan idlers

2. Demagnetize the record/playback head with a head

demagnetizer. (Do not bring the head demagnetizer

close to the erase head.)

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

4. After the adjustments, apply suitable locking compound

to the parts adjusted.

5. The adjustments should be performed with the rated

power supply voltage unless otherwise noted.

Torque Measurement

3-2. ELECTRICAL ADJUSTMENTS

CASSETE SECTION

Note : The adjustment should be performed in the order given in

this service manual.

rSwitches and controls should be set as follows unless

otherwise specified.

FUNCTION : TAPE (RADIO OFF)

VOLUME : max

TONE : mechanical mid.

Torque Torque Meter Meter Reading

2.95 – 6.86mN•m

Playback CQ-102C (30-70g• cm)

(0.417-0.97oz• inch)

8.83 – 14.7mN•m

Rewind CQ-201B (90-150g• cm)

(1.24-2.08oz• inch)

8.83 – 14.7mN•m

Fast Forward CQ-201B (90-150g• cm)

(1.24-2.08oz• inch)

0.148 – 0.539mN •m

Back Tention CQ-102C (1.5-5.5g• cm)

(0.02-0.76oz• inch)

Tape Tension Measurement

Torque Meter Meter Reading

CQ-403A more than 170g (5.99 oz)

Standard Output Level

SP OUT EARPHONE

load impedance 4Ω32Ω

output level 0.775V (0dB) 0.25V (–10dB)

Type Signal Used for

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

P-4-A063 6.3kHz, – 10dB Azimuth Adjustment

Test Tape

0 dB=0.775V

Tape Speed Adjustment

Procedure :

Mode : playback

digital frequency

counter

Ω

test tape

WS-48A

(3kHz, 0dB)

Earphone jack

set

Digital frequency counter

2,940 – 3,090 Hz

Frequency difference between the beginning and the end of

the tape should be within 1.5% (45Hz).

Adjustment Value :

CFM-D1JMK2/D1MK2

REDIO SECTION

Turn the adjustment screw for the maximum output levels.

Adjustment Location :

rFM Section

BAND switch : FM

Adjustment Location :

FM rf signal

generator

22.5kHz frequency deviation by

400Hz signal.

output level : as low as possible

rMW Section

BAND switch : MW

FINE TUNING control : mechanical center

AM rf signal

generator

Put the lead-wire

antenna close to

the set.

30% amplitude modulation by 400Hz signal.

Output level : as low as possible

rSW Section

BAND switch : SW

FINE TUNING control : mechanical center

AM rf signal

generator

Earphone jack

Ω

set

–

level meter

(range: 0.5-5V ac)

or distortion meter

rRepeat the procedures in each adjustment several times, and the

frequency coverage and tracking adjustments should be finally

done by the trimmer capacitors.

adjustment screw

Record/Playback Head Azimuth Adjustment

Procedure :

Mode : playback

test tape

P-4-A063

(6.3kHz, -10dB)

Earphone jack

Ω

level meter

set 12pF

telescopic antenna

terminal

30% amplitude

modulation by 400Hz signal

output level : as low as possible

telescopic antenna

input

0.01

tape speed adjustment

control Inside motor

CFM-D1JMK2/D1MK2

Adjustment Location :

[TUNER BOARD] – COMPONENT SIDE –

L5 : MW Tracking Adjustment L8 : SW1 Frequency coverage Adjustment

L7 : SW2 Frequency coverage Adjustment

CT5 : SW1 Frequency coverage Adjustment

L4 : SW2 Tracking Adjustment

L3 : SW1 Tracking Adjustment

CT6 : SW2 Frequency coverage Adjustment

L6 : MW Frequency coverage Adjustment

CT3 : MW Tracking Adjustment

L1 : FM Tracking Adjustment

T1 : FM IF Adjustment

CT4 : MW Frequency coverage

Adjustment

CT2 : FM Frequency coverage

Adjustment

T3 : FM IF Adjustment

CT1 : FM Tracking Adjustment

AM (MW/SW) IF ADJUSTMENT

Adjust for a maximum reading on level meter.

455kHz <455kHz>

SW1 FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L8 CT5

2.2MHz 7.3MHz

<2.2MHz> <7.3MHz>

< > : Saudi Arabia model [ ] : CFM-D1JMK2

L2 : FM Frequency coverage

Adjustment

T2 : AM (MW/SW)IF Adjustment

FM IF ADJUSTMENT

T1 : Adjust for a maximum reading on

level meter.

T3 : Adjust for a minimum reading on

distortion meter.

SW1 TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

2.2MHz <2.2MHz>

SW2 FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L7 CT6

6.8MHz 22.5MHz

<6.8MHz> <22.5MHz>

SW2 TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

6.8MHz <6.8MHz>

MW FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L6 CT4

520kHz 1,680kHz

<516kHz> <1,630kHz>

[516kHz] [1,640kHz]

MW TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L5 CT3

600kHz 1,400kHz

<600kHz> <1,400kHz>

FM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L2 CT2

86.5MHz 109.5MHz

<87.35MHz> <107.8MHz>

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L1 CT1

86.50MHz 109.5MHz

<87.35MHz> <107.8MHz>

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