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Stereo Receiver
STR-7055
Service manual
Sony STR-7055 Service Manual
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:
Owner's instruction manual
(19 pages)
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Table Of Contents
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Contents
Table of Contents
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Table of Contents
FM Stereo/Fm-AM Receiver
Specifications
Table of Contents
Servicing Notes
Cautions on Handling IC's
Nylon Rivet Removal
IC Installation
Technical Description
Specifications
Circuit Description Digest
Signal-To-Noise Ratio
Input Sensitivity and Impedance
Output Level and Impedande
Audio Muting Circuit
Speaker Protection Circuit
Level Diagram
When Q705 Is Excessively Forward Biased
When Q705 Is Forced to Cutoff
Block Diagram
Disassembly and Replacement
Bottom Plate Removal
Front Panel Removal
Dial-Cord Restringing
Power Transistor Replacement
Details of Dial Cord Finish
Dial Pointer Installation
Dial Glass Removal
Meter Replacement
Volume Control Replacement
Control, Jack and Switch Replacement
Power Switch, Headphone, AUX Jacks
Speaker, Filter, Mode and Function Switches
Loudness, Muting Switches and Tone Controls
Chassis Layout
Alignment and Adjustment
FM I-F Strip Alignment
Fm I-F Ceramic Filter
Interruption of Afc Circuit
FM Discriminator Alignment
Discriminator Alignment Test Setup
Fm I-F, Discriminator, Muting and Front-End Alignment Test Setup
FM Frequency Coverage Alignment
FM Stereo Separation Adjustment
Signal Generator Method
Off-The-Air Signal Method
Muting Adjustment
Fm Stereo Separation Adjustment Test Setup
A-M Frequency Coverage and Tracking Alignment
A-M Frequency Coverage and Tracking Alignment Test Setup
Tuning Meter Calibration
Tuning Meter Calibration Test Setup
Adjustment Parts Location
A-M Front End/I-F Amplifier/Mpx Board Component Side
Power Amplifier Adjustment
DC Bias Adjustment
Power Amplifier Adjustment Test Setup
Repacking
Diagrams
Mounting Diagram - REC/PB Connector Board Conductor Side
Mounting Diagram - Loudness Control Board Conductor Side
Mounting Diagram - Fm Front End (FAF-022BWG) Conductor Side
Mounting Diagram - A-M Front End/I-F Amplifier/Mpx Board Conductor Side
Parts Location
Schematic Diagram - Tuner Section
IC Block Diagram
Detailed IC (CX-0412) Diagram
Detailed IC (CX-0431) Diagram
Schematic Diagram - Audio Amplifier Section
Detailed IC (CX-0461) Diagram
Mounting Diagram - Control Board (CCB-116) Conudctor Side
Mounting Diagram - Power Amplifier/Power Supply Board - Conudctor Side
Exploded Views
Hardware Nomenclature
Schematic Diagram
Electrical Parts List
Complete Circuit Boards
Semiconductors
Transformers, Coils and Inductois
Capacitors
Resistors
Switches
Filter
Miscellaneous
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