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Sony STR-414L - Service Manual

Sony STR-414L
25 pages
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1/3/2015
Digitized in Heiloo, Holland
www.manualscenter.com
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Summary

SPECIFICATIONS

General Specifications

Details power requirements, consumption, dimensions, and weight of the receiver.

FM Section Specifications

Details FM frequency range, antenna, intermediate frequency, and sensitivity.

Performance Specifications

Lists usable sensitivity, S/N ratio, harmonic/IM distortion, separation, and frequency response.

SECTION 1 OUTLINE

CIRCUIT DESCRIPTION

Explains automatic FM/LW band switching via optical detection and program sensor.

SECTION 1-2. BLOCK DIAGRAM

SECTION 2 DISASSEMBLY

TOP COVER REMOVAL

Steps for removing the top cover of the unit.

FRONT GLASS REMOVAL

Procedure to remove the front glass assembly.

BOTTOM PLATE REMOVAL

Instructions for detaching the bottom plate.

FRONT PANEL REMOVAL

Guide for removing the front panel components.

POWER TRANSISTOR REPLACEMENT

REPLACEMENT (1)

First part of the procedure for replacing power transistors.

REPLACEMENT (2)

Second part of the procedure for power transistor replacement.

DIAL CORD STRINGING

Preparation

Initial steps for dial cord stringing.

Stringing

The process of stringing the dial cord.

Dial Pointer Installation

Steps for installing the dial pointer.

SECTION 3 ELECTRICAL ADJUSTMENTS

DC BIAS ADJUSTMENT

Procedure for adjusting the DC bias of the unit.

BAND SECTION ADJUSTMENTS

MW FREQUENCY COVERAGE ADJUSTMENT

Adjusting the MW frequency coverage.

MW TRACKING ADJUSTMENT

Adjusting the MW tracking.

SW FREQUENCY COVERAGE ADJUSTMENT

Adjusting the SW frequency coverage.

SW TRACKING ADJUSTMENT

Adjusting the SW tracking.

LW SECTION ADJUSTMENTS

LW EXT ANTENNA COIL ADJUSTMENT

Adjusting the LW external antenna coil.

LW TRACKING ADJUSTMENT

Adjusting the LW tracking.

LW FREQUENCY COVERAGE ADJUSTMENT

Adjusting the LW frequency coverage.

FM SECTION ADJUSTMENTS

FM FREQUENCY COVERAGE ADJUSTMENT

Adjusting the FM frequency coverage.

FM TRACKING ADJUSTMENT

Adjusting the FM tracking.

FM ALIGNMENTS AND ADJUSTMENTS

FM Discriminator Alignment

Procedures for aligning the FM discriminator (Primary and Secondary sides).

FM Stereo Separation Adjustment

Procedure for adjusting the FM stereo separation.

FM IF and MPX Adjustments

Alignment of the FM IF stage and MPX section.

FM ALIGNMENTS

FM Discriminator Alignment 1

Procedure for the primary side FM discriminator alignment.

FM IF Alignment

Alignment of the FM IF stage.

MPX Adjustment

Procedures for MPX adjustment (Regular and Simple methods).

SECTION 4 DIAGRAMS

MOUNTING DIAGRAM

Diagram showing component mounting on conductor and component sides.

SCHEMATIC DIAGRAM

SECTION 5 EXPLODED VIEWS

SECTION 6 ELECTRICAL PARTS LIST

SEMICONDUCTORS

List of semiconductor components with part numbers.

COILS

List of coils with part numbers.

TRANSFORMERS AND FILTER

List of transformers and filters with part numbers.

CAPACITORS

List of capacitors with part numbers and values.

CAPACITOR VALUES

RESISTORS

List of resistors with part numbers and values.

JACKS AND MISCELLANEOUS

JACKS

Listing of various jacks and connectors.

MISCELLANEOUS

Listing of miscellaneous parts like cords and fuses.

1;4 WATT CARBON RESISTORS

Table of 1/4 watt carbon resistors.

RESISTORS AND SWITCHES

RESISTORS (Continued)

Continuation of resistor listings.

SWITCHES

List of switches with part numbers.

Summary

SPECIFICATIONS

General Specifications

Details power requirements, consumption, dimensions, and weight of the receiver.

FM Section Specifications

Details FM frequency range, antenna, intermediate frequency, and sensitivity.

Performance Specifications

Lists usable sensitivity, S/N ratio, harmonic/IM distortion, separation, and frequency response.

SECTION 1 OUTLINE

CIRCUIT DESCRIPTION

Explains automatic FM/LW band switching via optical detection and program sensor.

SECTION 1-2. BLOCK DIAGRAM

SECTION 2 DISASSEMBLY

TOP COVER REMOVAL

Steps for removing the top cover of the unit.

FRONT GLASS REMOVAL

Procedure to remove the front glass assembly.

BOTTOM PLATE REMOVAL

Instructions for detaching the bottom plate.

FRONT PANEL REMOVAL

Guide for removing the front panel components.

POWER TRANSISTOR REPLACEMENT

REPLACEMENT (1)

First part of the procedure for replacing power transistors.

REPLACEMENT (2)

Second part of the procedure for power transistor replacement.

DIAL CORD STRINGING

Preparation

Initial steps for dial cord stringing.

Stringing

The process of stringing the dial cord.

Dial Pointer Installation

Steps for installing the dial pointer.

SECTION 3 ELECTRICAL ADJUSTMENTS

DC BIAS ADJUSTMENT

Procedure for adjusting the DC bias of the unit.

BAND SECTION ADJUSTMENTS

MW FREQUENCY COVERAGE ADJUSTMENT

Adjusting the MW frequency coverage.

MW TRACKING ADJUSTMENT

Adjusting the MW tracking.

SW FREQUENCY COVERAGE ADJUSTMENT

Adjusting the SW frequency coverage.

SW TRACKING ADJUSTMENT

Adjusting the SW tracking.

LW SECTION ADJUSTMENTS

LW EXT ANTENNA COIL ADJUSTMENT

Adjusting the LW external antenna coil.

LW TRACKING ADJUSTMENT

Adjusting the LW tracking.

LW FREQUENCY COVERAGE ADJUSTMENT

Adjusting the LW frequency coverage.

FM SECTION ADJUSTMENTS

FM FREQUENCY COVERAGE ADJUSTMENT

Adjusting the FM frequency coverage.

FM TRACKING ADJUSTMENT

Adjusting the FM tracking.

FM ALIGNMENTS AND ADJUSTMENTS

FM Discriminator Alignment

Procedures for aligning the FM discriminator (Primary and Secondary sides).

FM Stereo Separation Adjustment

Procedure for adjusting the FM stereo separation.

FM IF and MPX Adjustments

Alignment of the FM IF stage and MPX section.

FM ALIGNMENTS

FM Discriminator Alignment 1

Procedure for the primary side FM discriminator alignment.

FM IF Alignment

Alignment of the FM IF stage.

MPX Adjustment

Procedures for MPX adjustment (Regular and Simple methods).

SECTION 4 DIAGRAMS

MOUNTING DIAGRAM

Diagram showing component mounting on conductor and component sides.

SCHEMATIC DIAGRAM

SECTION 5 EXPLODED VIEWS

SECTION 6 ELECTRICAL PARTS LIST

SEMICONDUCTORS

List of semiconductor components with part numbers.

COILS

List of coils with part numbers.

TRANSFORMERS AND FILTER

List of transformers and filters with part numbers.

CAPACITORS

List of capacitors with part numbers and values.

CAPACITOR VALUES

RESISTORS

List of resistors with part numbers and values.

JACKS AND MISCELLANEOUS

JACKS

Listing of various jacks and connectors.

MISCELLANEOUS

Listing of miscellaneous parts like cords and fuses.

1;4 WATT CARBON RESISTORS

Table of 1/4 watt carbon resistors.

RESISTORS AND SWITCHES

RESISTORS (Continued)

Continuation of resistor listings.

SWITCHES

List of switches with part numbers.

Sony STR-414L Specifications

General IconGeneral
TypeStereo Receiver
Power Output20 watts per channel into 8Ω (stereo)
Dimensions430 x 280 x 100 mm
Weight6.5 kg
Frequency response20 Hz - 20 kHz
Total harmonic distortion< 0.1%
Input sensitivity2.5 mV (Phono), 150 mV (Line)
Speaker load impedance8 ohms
Tuning RangeFM, AM
InputsPhono, Aux
OutputsSpeaker
Signal to noise ratio> 70 dB
Signal-to-Noise Ratio> 70 dB

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