Sony SRF-M55 User Manual

Ver 1.0 1999.09
MICROFILM
SRF-M55
SERVICE MANUAL
FM STEREO PLL SYNTHESIZED RADIO
SPECIFICATIONS
AEP Model
E Model
Chinese Model

Sony SRF-M55 Specifications

General

Brand	Sony
Model	SRF-M55
Category	Radio
Tuning	Digital
Frequency Range	FM: 87.5 - 108 MHz, AM: 530 - 1710 kHz
Power Source	2 x AA Batteries
Headphone Jack	Yes
Weather Capability	No
Presets	20 (10 FM, 10 AM)
Type	Portable
Weight	Approx. 80g (2.8 oz) including batteries

Summary

Specifications

Section 1 General

Location and Function of Controls

Details the location and function of all controls and displays on the device.

Section 2 Disassembly

2-1. Cabinet Assy, Front and Rear

Procedure for disassembling the front and rear cabinet parts.

2-2. Main Board

Procedure for disassembling the main circuit board.

2-3. LCD201

Procedure for disassembling the LCD unit.

2-4. Microcomputer Board

Procedure for disassembling the microcomputer board.

Section 3 Adjustments

FM IF Adjustment

Procedure for adjusting the FM Intermediate Frequency (IF) stage.

FM Frequency Coverage Adjustment

Procedure for adjusting the FM frequency coverage range.

FM Tracking Adjustment

Procedure for adjusting the FM signal tracking.

Section 4 Diagrams

4-1. Explanation of IC Terminals

Detailed explanation of IC terminals and their functions.

4-2. Block Diagrams

Overview of the system's functional block diagrams.

4-3. Printed Wiring Boards

Layouts of the printed wiring boards for component placement.

4-4. Schematic Diagram

Detailed circuit schematic diagrams of the radio.

IC Block Diagrams

Section 5 Exploded View

Section 6 Electrical Parts List