Sony STR-V7770 User Manual

STR-V5550/V7770
E Model
Chinese Model
SERVICE MANUAL
FM STEREO/FM-AM RECEIVER
MICROFILM
SPECIFICATIONS
This set is the tuner and amplifier
section in MHC-V5550/V7770AV.
Amplifier section
The following measured at AC 230V 50/60 Hz
DIN power output (Rated) (FRONT)
95 + 95W (6 Ω at 1kHz DIN)
Continuous RMS power output (Reference)
FRONT SPEAKER: 110 + 110W
(6 Ω at 1kHz, 10% THD)
CENTER SPEAKER: 55W
(8 Ω at 1kHz, 10% THD) (V7770)
REAR SPEAKER: 35 + 35W
(8 Ω at 1kHz, 10% THD) (V7770)
The following measured at AC 120, 220, 240V 50/60Hz
DIN power output (Rated) (FRONT)
100 + 100W (6 Ω at 1kHz DIN)
Continuous RMS power output (Reference)
FRONT SPEAKER: 120 + 120 W
(6 Ω at 1kHz, 10% THD)
CENTER SPEAKER: 60W
(8 Ω at 1kHz, 10% THD) (V7770)
REAR SPEAKER: 40 + 40W
(8 Ω at 1kHz 10% THD) (V7770)
Peak music power output 2400W (V7770)
2000W (V5550)
Inputs MD/VIDEO 1 IN (phone jacks): voltage
450/250mV, impedance 47kΩ
AV INPUT AUDIO (phone jacks): voltage
250mV, impedance 47kΩ
MIX MIC 1/2 (phone jack): sensitivity 1mV,
impedance 10kΩ
Output MD/VIDEO 1 OUT (phono jacks): voltage
450/250mV, impedance 1kΩ
PHONES (stereo phone jack): accepts
headphones of 8Ω or more.
FRONT SPEAKER:
accepts impedance of 6 to 16Ω
CENTER SPEAKER:
accepts impedance of 8 to 16Ω (V7770)
REAR SPEAKER:
accepts impedance of 8 to 16Ω
SUPER WOOFER:
Voltage 1V, impedance 1kΩ
Photo : STR-V7770
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0MHz
Aerial FM lead aerial
Aerial terminals 75Ω unbalanced
Intermediate frequency 10.7MHz
AM tuner section
Tuning range
Thai models: 531 – 1,602kHz (with the AM tuning
interval set at 9kHz)
530 – 1,710kHz (with the AM tuning
interval set at 10kHz)
Other models: MW: 531 – 1,602kHz (with the MW tuning
interval set at 9kHz)
530 – 1,710kHz (with the MW tuning
interval set at 10kHz)
SW: 5.95 – 17.90MHz (with the SW tuning
interval set at 5kHz)
Intermediate frequency 450kHz
Antenna AM loop antenna External antenna terminal
General
Power requirements
Chinese, Thai models: 220V AC, 50/60Hz
Other models: 120V or 220V or 230 – 240, 50/60Hz
Adjustable with voltage selector
Power consumption 300W
Dimensions (w/h/d) Approx. 288 × 205 × 375mm
Mass Approx. 8.8kg
Design and specifications are subject to change without notice.

Sony STR-V7770 Specifications

General

Brand	Sony
Model	STR-V7770
Category	Stereo Receiver
Language	English

Summary

Unit Overview and Controls

Front Panel Controls

Identifies and labels the various buttons and controls on the front of the unit.

Rear Panel Connections

Identifies and labels the various connectors and terminals on the rear of the unit.

Service and Diagnostic Modes

Service Mode Operations

Explains procedures for operating the unit in specific service modes.

Aging Mode Procedures

Details aging modes for CD, TAPE, and PANEL testing.

Technical Diagrams and Layouts

Circuit Board Locations

Illustrates the physical locations of various circuit boards within the unit.

System Block Diagrams

Shows the block diagrams of the main and power sections to understand system flow.

Schematic Diagrams

Provides detailed schematic diagrams for Main, Power Amp, Surround Amp, AV/MIC, Display, and Trans sections.

Printed Wiring Board Layouts

Shows the physical component layout for various circuit boards.

Component Identification and Parts

IC Pin Functions and Block Diagrams

Details block diagrams and pin functions for key integrated circuits.

Exploded Views and Parts Lists

Provides exploded views and parts lists for major assemblies.

Electrical Parts List

Comprehensive list of electrical components with part numbers and specifications.