Sony WM-AF22 - User Manual

—-
Pa
Photo : WM—AF22
(See page13)
Mode! Name Using Similer Mechanism
Tape Transport Mechanism Type
Canadian
Model
WM-AF22
AEP Model
UK Model
E Model
WM-BF22
US Model
| WM-AF28
AEP Model
UK Model
WM-BF28
WM-31/41
MF-WMAF 22-04
MF-WMBF22-04
SPECIFICATIONS
FM: 87.5 - 108 MHz (Italian model)
87.6 - 107 MHz (West German model)
87.6 - 108 MHz (Other model)
AM: 526.5 - 1,606.5 kHz (italian model)
5§31-1,602 kHz (West German model)
530 - 1,605 kHz (Other model)
40 - 15,000 Hz
For E-model
5SmW +5 mW at DC operation
(at 10% harmonic distortion) load impedance 16ohms
For other countries:
10 mW+10mW at DC operation
(at 10% harmonic distortion) load impedance 32 ohms
Frequency range
Frequency response
Power output
Power requirements 3v 0c
Two R6 (size AA) batteries
Sony rechargeable battery BP-700
DC IN 3V jack accepts
Optional Sony AC-D2L AC power adaptor
available
in
United
Kingdom
for
use
on
240V
AC,
50
Hz.
available
in
Canada
for
use
on
120V
AC,
60
Hz
available
in
other
countries
for
use
on
120V
AC,
60
Hz
or
220V AC, 50 Hz
Battery
life
Approx.
8
hours
on
tape
playback
and
approx.
30
hours
on
FM
reception,
using
Sony
alkaline
batteries
AM3
(N).
Dimensions
WM-AF22/BF22:
Approx.
88
x
134
«31.5
mm
(w/h/d)
Other models: Approx. 88 x 134 «32.5 mm (w/h/d)
not incl. projecting parts and controls
WM-AF22/BF22: Approx. 2259
Other models: Approx. 230g
incl.
batteries,
not
incl.
other
accessories
:
For
Canada
and
the
United
Kingdom:
Stereo
Headphones
' Weight
Accessories supplied
Their defferences are shown in the table below.
WM-AF22
WM-BF22
WM-BF28
WN-AF 28
This
instruction
manual
covers
WM-AF22/BF22and
WM-AF
28
/BF
28.
Rechargeable | Battery
charger
(BC-700)
Headphones
Earphones
FM sensitivity
selector
Stereo
headphones
For United
Kingdom:
Stereo
headphones
For other
countries:
Stereo
earphones
Ear adaptors
DX/LOCAL
Optional
Supplied Supplied
Optional
FM STIMONO
Stereo
headphones
DX/LOCAL
Optional
Accessories
—Note
lf an AC power adaptor or a car battery cord
NiICROFILM
(Open-air type, 1)
For
other
countries:
Stereo
earphones
(Open-air
type,
1)
Ear adaptor (2)
For only WM-AF28/BF 28: Rechargeable battery (1)
Battery charger (1)
AC power adaptor AC-D2L
Car battery cord DCC-70
Battery case EBP-500B
Rechargeable battery BP-700
Battery charger BC-700
Stereo active speaker system
SRS-30, SRS-50
not manufactured by Sony is used, a fuse
the car battery cord and the polarity of the
plug must be as illustrated.
Ya
ZB
JF
RADIO
CASSETTE
PLAYER
must be installed in the AC power adaptor or

Sony WM-AF22 Specifications

General

Type	Cassette Player
Brand	Sony
Model	WM-AF22
Power Supply	2 x AA batteries
Playback Functions	Play, Stop, Rewind, Fast Forward
Battery Life	Approx. 20 hours
Headphone Jack	3.5 mm
Radio	AM/FM
Features	Mega Bass

Summary

Specifications

Model and Mechanism Details

Details model names, tape transport mechanism types, and specifications.

Model Differences Comparison

Outlines specific differences between WM-AF22/BF22 and WM-AF28/BF28 models.

Accessories List

Lists both supplied and optional accessories for the device.

Section 1: Disassembly and Installation

Cassette Holder Assembly Procedures

Steps for removing and installing the cassette holder assembly.

Rear Cabinet Removal

Instructions for detaching the rear cabinet assembly.

Section 2: Mechanical and Electrical Adjustments

Mechanical Adjustments and Precautions

Covers cleaning, demagnetizing, torque, and tension measurements.

Electrical Adjustments: Cassette Section

Details playback head phase check and related procedures.

Tuning and Speed Adjustments

Tape Speed Adjustment

Procedure for adjusting and checking tape speed accuracy.

FM;MW Tuning Adjustments

Covers frequency coverage and tracking adjustments for FM and MW bands.

Section 3: Diagrams

Semiconductor Lead Layouts

Visual representations of semiconductor component pinouts.

Semiconductor Location Chart

Table indicating the locations of semiconductors on the PCB.

Main Board Layout

Component Placement Diagram

Visual layout of components on the main printed circuit board.

Main Board Schematic and Test Points

Circuit Diagram

Detailed schematic of the main board's circuitry and signal paths.

Test Points and Voltage Measurements

Identifies test points and provides voltage measurement guidelines.

Section 4: Exploded View

Exploded View of Unit

Diagram showing the physical breakdown of the device's parts.

Critical Component Identification

Notes on identifying critical safety components and parts.

Exploded View Parts List

Mechanical Parts List

Detailed list of mechanical components by reference number.

Cassette Holder Assembly Details

Cassette Holder Assembly Views

Visuals of various cassette holder assemblies and their part numbers.

Section 5: Electrical Parts List

Capacitors, Coils, and Filters

List of capacitors, coils, and filters with part numbers and specifications.

Semiconductors and Other Components

List of transistors, ICs, jacks, and other electronic parts.

Resistor and Accessory Lists

Resistor Specifications

Detailed list of resistors with part numbers and values.

Supplement-1: Model Information

Model Additions and Corrections

Details additions of French/Brazilian models and PCB part number corrections.

Supplement-2: Disassembly Procedures

Cassette Holder Removal

Step-by-step guide for removing the cassette holder assembly.

Rear Cabinet Removal

Instructions for detaching the rear cabinet assembly.