Read Sony CFT-22 Service Manual online
– 1 –
SPECIFICATIONS
AEP Model
UK Model
E Model
MICROFILM
CFT-22
Model Name Using Similar Machanism
NEW
Tape Transport Mechanism Type
MF-WMFX433-114
SERVICE MANUAL
Frequency range
BAND
FM
AM
Model
AEP, E, UK
87.6–107MHz
531–1,602kHz
Italian
87.5–108MHz
526.5–1,606.5kHz
Saudi Arabia
87.6–107MHz
530–1,605kHz
r
IF FM : 10.7MHz/AM : 455kHz
r
Aerias FM : Telescope AM : Built-in ferrite bar
r
Frequency response 80–10,000Hz
r
Speakers Full-range 7.7cm (3
1
/
8
inches) dia., cone type
r
Output Earphone jack (minijack), for 15-25 ohms impedance earphone
r
Maximum Power output 1W
r
Battery life
Playback : Sony R14P : Approx. 6 hours/Sony LR14 alkaline : Approx. 12 hours
r
Power requirements
DC IN 6V jack accepts : supplied AC power adaptor for use with :
AEP, E, Italian model
AEP, E, Italian model
220–230 V AC, 50Hz
UK model
230–240 V AC, 50Hz
Saudi Arabia model
110–120/220–240 V AC, 60Hz
6V DC, four R14 (size C) batteries
r
Power consumption
DC 1.6W
r
Dimensions Approx. 152x193x138mm (w/h/d) (6 x 7
5
/
8
x 5
1
/
2
inches) incl.
projecting parts and controls
r
Mass Approx. 1.0 kg (2 lb 3 oz) incl. batteries
r
Supplied accessory AC power adaptor (1)
Design and specifications are subject to change without notice.
RADIO CASSETTE PLAYER
– 2 –
Specification ..................................................................................... 1
1. GENERAL
Location of Controls .................................................................. 3
2. DISASSEMBLY
2-1. Cabinet (Rear) Removal ..................................................... 4
2-2. Cabinet (Front) Removal .................................................... 4
2-3. Dial, Chassis Removal ........................................................ 5
2-2. Cabinet (Front) Removal .................................................... 4
2-3. Dial, Chassis Removal ........................................................ 5
3. DIAL POINTER INSTALLATION .......................................... 6
4. ADJUSTMENTS
4-1. Mechanical Adjustment ...................................................... 7
4-2. Electrical Adjustment .......................................................... 7
4-2. Electrical Adjustment .......................................................... 7
5. DIAGRAMS
5-1. Printed Wiring Boards ...................................................... 10
5-2. Schematic Diagram ........................................................... 13
5-2. Schematic Diagram ........................................................... 13
6. EXPLODED VIEWS
6-1. Cabinet Section ................................................................. 16
6-2. MD Chassis Section .......................................................... 17
6-3. Mechanism Section ........................................................... 18
6-2. MD Chassis Section .......................................................... 17
6-3. Mechanism Section ........................................................... 18
7. ELECTRICAL PARTS LIST ................................................ 19
Section
Title
Page
______
____
____
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270
• Keep the temperature of the soldering iron around 270
°
C during
repairing.
• Do not touch the soldering iron on the same conductor of the circuit
board (within 3 times).
• Be careful not to apply force on the conductor when soldering or
unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged
by heat.
TABLE OF CONTENTS
– 3 –
SECTION 1
GENERAL
This section is extracted from
instruction manual.
instruction manual.
– 4 –
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET (REAR) REMOVAL
2-2. CABINET (FRONT) REMOVAL
3 Tuning knob
4 Cabinet (rear) section
2 Screws +P 2.6x4
2 Screws +P 2.6x4
1 Battery case lid
3
2
Holder sub assy
(cassette)
(cassette)
MD chassis section
Cabinet (front) section
1