DOWNLOAD Sony CFT-22 Service Manual ↓ Size: 310.83 KB | Pages: 16 in PDF or view online for FREE

– 1 –

MICROFILM

Model Name Using Similar Machanism

NEW

Tape Transport Mechanism Type

MF-WMFX433-114

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

    Playback : Sony R14P : Approx. 6 hours/Sony LR14 alkaline : Approx. 12 hours

r

   DC IN 6V jack accepts : supplied AC power adaptor for use with :
   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

    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.

– 2 –

Specification ..................................................................................... 1

Location of Controls .................................................................. 3

2-1. Cabinet (Rear) Removal ..................................................... 4
2-2. Cabinet (Front) Removal .................................................... 4
2-3. Dial, Chassis Removal ........................................................ 5

3. DIAL POINTER INSTALLATION .......................................... 6

4-1. Mechanical Adjustment ...................................................... 7
4-2. Electrical Adjustment .......................................................... 7

5-1. Printed Wiring Boards ...................................................... 10
5-2. Schematic Diagram ........................................................... 13

6-1. Cabinet Section ................................................................. 16
6-2. MD Chassis Section .......................................................... 17
6-3. Mechanism Section ........................................................... 18

7. ELECTRICAL PARTS LIST ................................................ 19

Flexible Circuit Board Repairing
• 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

by heat.

– 3 –

This section is extracted from
instruction manual.

– 4 –

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

3 Tuning knob

4 Cabinet (rear) section

2 Screws +P 2.6x4

2 Screws +P 2.6x4

1 Battery case lid

3

2

1