Sony IGF-M50RDS User Manual

_IGF-MOORDS
SERVICE MANUAL AEP Model
UK Model
SBEND seen sea
SPECIFICATIONS
Time display: Note
UK: 12-hour system This appliance conforms with EEC Directive 87/
Other countries: 24-hour system 308/EEC regarding interference suppression.
Frequency range: These instructions cover two models:FM/MW /
LW or FW/MW/SW
—— The band for each model and the area where the
Band _Frequency range Channel step model is available are shown balow.
FM 87.5 - 108 MHz 0.05*MHz(fixed) _—
MW 531 -1,602 kHz 9kHz(fixed) Where available Band
LW 153-279 kHz 9kHz(fixed) UK FM/MW/LW
Sw 5,800 - 6,400kHz — 5kHz(fixed) Other countries FM/MW/LW
FM/MW/SW
* The frequency display is raised or lowered by a
step of 0.1MHz.(Example: Frequency 88.05MHz
is displayed as “ 88.0MHz“.)
Intermediate frequency:
FM: 10.7 MHz, MW: 450 kHz
Speaker: Approx. 9.2 cm (3 5/ inches) dia. 8Q
Power output: 450 mW (at 10% harmonic
distortion)
Output: Earphone jack (minijack)
Power requirements: U.K.:240 V AC,50 Hz
Other counties:220-230 V AC, 50 Hz
6 V DC, four R6(size AA) batteries
Battery life: Approx. 15 hours listening for 4
hours a day at a normal volume using Sony
batteries SUM-3 (NS)
Dimensions: Approx. 240 x 116 x 61 mm
(w/h/d) (Approx. 9 1/2 x 45/8 x 2 1/2 inches)
not incl. projecting parts and controls
Mass: Approx. 900 g (2 Ib)incl. batteries
Accessories supplied: AC power cord (1)
FM antenna coupler (1) (Models for
Netherlands, Switzerland,Belgium and
Scandinavia only)
.
Design and specifications subject to change FM /MW/LW aBand RDS Radio
without notice.
FM/MW/SW 3Band RDS Radic
SONY.

Sony IGF-M50RDS Specifications

General

Brand	Sony
Model	IGF-M50RDS
Category	Radio
Language	English

Summary

Specifications

Frequency Range

Details the supported radio frequency bands and channel step for different models.

Time Display

Specifies the time display format (12-hour/24-hour) based on country.

Section 1 General

Section 2 Adjustments

AM IF Adjustment

Procedure for adjusting the AM Intermediate Frequency for optimal performance.

MW VCO Adjustment

Procedure for adjusting the Medium Wave Voltage Controlled Oscillator.

SW VCO Adjustment

Procedure for adjusting the Shortwave Voltage Controlled Oscillator.

MW Tracking Adjustment

Procedure for adjusting the Medium Wave band tracking.

SW Tracking Adjustment

Procedure for adjusting the Shortwave band tracking.

FM VCO Check

Procedure for checking the FM Voltage Controlled Oscillator.

FM Tracking Adjustment

Procedure for adjusting the FM band tracking.

LW VCO Adjustment

Procedure for adjusting the Long Wave Voltage Controlled Oscillator.

LW Tracking Adjustment

Procedure for adjusting the Long Wave band tracking.

Adjustment Location

Diagram showing the physical location of adjustment components on the circuit board.

Section 3 Diagrams

IC Pin Function

Details the pin functions for the system control IC (µPD75308GF-R90-3B9).

Semiconductor Lead Layouts

Provides lead pinout diagrams for various semiconductors used in the radio.

Printed Wiring Boards

Shows the layout of the printed circuit boards for the main and key sections.

Schematic Diagram

Presents the complete circuit schematic diagram for the radio's operation.

Voltages of Semiconductors

Lists voltage readings for ICs and transistors under various operating modes.

IC Block Diagrams

Illustrates the internal functional blocks of key integrated circuits.

Section 4 Exploded View

Cabinet Section

Illustrates the assembly of the radio's cabinet and external parts.

Section 5 Electrical Parts List

Capacitors

Lists all capacitor components with their part numbers and specifications.

Diodes

Lists all diode components with their part numbers and types.

ICs

Lists all integrated circuit components with part numbers and functions.

Jumper Resistors

Lists jumper resistor components and their specifications.

Transistors

Lists all transistor components with part numbers and specifications.

Resistors

Lists all resistor components with part numbers and values.

Variable Resistors

Lists variable resistor components like volume and tone controls.

Coils

Lists inductor and coil components with their part numbers and inductance.

Switches

Lists all switch components used for various functions.

Filters

Lists filter components, including crystal and ceramic filters.

Trimmers

Lists trimmer capacitor components used for adjustments.

Transformers

Lists transformer components for IF, DC-DC conversion, and power.

Vibrators

Lists crystal and ceramic vibrator components.

Accessories & Packing Materials

Lists supplied accessories, manuals, and packing materials.