Sony CFM-D1JMK2 User manual

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
© 2002.10
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

CFM-D1JMK2/D1MK2
2
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
3
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
1
23
46
57
8
9
0

CFM-D1JMK2/D1MK2
4
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)
1
2
Screws +BVTP3X1
4
2 Screws +BVTP3X14
6
3
4
5
Lid , Battery case
Cabinet (rear) assy
Push the STOP/EJECT button
Connector (CN104)
Cabinet (front) assy

CFM-D1JMK2/D1MK2
5
2-2. E.C.M BOARD, MD ASSY(MF-D1)
2-3. RECORD/PLAYBACK HEAD (HRP101), BELT, REEL/CAPSTAN MOTOR (M101)
1 Two claws
4 Chassis (tuning)
5 Connector (CN102)
6 Connector (CN101)
8 MD assy (MF-D1)
2 E.C.M board
3 Two screws (+BVTP 3X10)
7 Two screws (+BVTP 3X10)
Cabinet (rear) ass
y
1 Screw (M2X3, +Bind)
3 Screw (M2X7, +AZIMUTH)
2 Rug (B3) Spring
4 Record/playback head (HRP101)
5 Screw, MB
8 Motor coller screw
6 Bracket, motor
7 Belt
9 Reel/capstan motor (M101
)

CFM-D1JMK2/D1MK2
6
2-4. EARPHONE BOARD, MAIN BOARD
2-5. POWER BOARD
1 Knob (TUNING
)
2 Knob (FINE TUNING)
4 Gear, tuning
7 Connector (CN105)
5 Screw (+BVTP 3X10)
9 Screw (+BVTP 3X10)
qs MAIN board
0
8
Three screws (+BVTP 3X10)
6 EARPHONE board
3 Two knobs (VOLUME/TONE)
qa Two knobs (FUNCTION/BAND)
Cabinet (rear) assy
1 Three screws (+BVTP 3X10)
2 Shield plate
3 POWER board
Cabinet (rear) ass
y

CFM-D1JMK2/D1MK2
7
2-6. DIAL POINTER SETTING 2
Tuning gear
A
3 Knob(Tuning) assy
1 Tuning capacitor gea
r
B
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
B ( ) position Fig-1.
2. Turn the Tuning Gear until its position
A ( )
fits into the detent
B ( ) of the Tuning
Capacitor Gear.
Tuning gear
4
5 Screw +BVTP3X1
0
5 Screw +BVTP3X10
Tuning chassis
C
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
C of Fig-3.
5. Fasten the Tuning Chassis to the cabinet (Rear)
with the screw.

CFM-D1JMK2/D1MK2
8
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
32 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
9
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
32 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
32 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 µ F
tape speed adjustment
control Inside motor

CFM-D1JMK2/D1MK2
10
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.
T2
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.
L3
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.
L4
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>