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Sony CFD-G770CP - Service Manual

Sony CFD-G770CP
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SERVICE MANUAL
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
US Model
CFD-G700CP
Canadian Model
CFD-G770CPK
E Model
CFD-G770CP/G770CPK
Australian Model
CFD-G770CPK
CD RADIO CASSETTE-CORDER
9-887-620-01
2007C16-1
© 2007.03
Ver. 1.0 2007.03
SPECIFICATIONS
CFD-G700CP/G770CP/
G770CPK
Model Name Using Similar Mechanism CFD-G505/G555CP/G555CPK
CD
CD Mechanism Type KSM-213CDP/C2NP
Section
Optical Pick-up Type KSS-213C
TAPE
Model Name Using Similar Mechanism HCD-EC50
Section
Tape Transport Mechanism Type H21SB-C05
AUDIO POWER SPECIFICATIONS (US)
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 3.2-ohm loads, both channels driven from
1 000 - 10 000 Hz; rated 3 W per channel-minimum
RMS power, with no more than 10 % total harmonic
distortion in AC operation.
Woofer with 4-ohm loads, driven from 50 - 150
Hz; rated 6 W minimum RMS power, with no more
than 10 % total harmonic distortion in AC
operation.
Other specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Emission duration: Continuous
Laser output: Less than 44.6 µW
(Th is output is the value measured at a distance
of about 200 mm from the objective lens surface
on the optical pick-up block with 7 mm
aperture.)
Number of channels
2
Frequency response
20 - 20 000 Hz +1/–2 dB
Wow and fl utter
Below measurable limit
Radio section
Frequency range
FM: 87.5 - 108 MHz
AM: 530 - 1 710 kHz
(G700CP: US/G770CPK: CND, MX, E92)
AM: 531 - 1 611 kHz (G770CPK: AUS)
AM: 531 - 1 611 kHz (9 kHz step)(G770CP)
AM: 530 - 1 610 kHz (10 kHz step)(G770CP)
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 150 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 70 - 13 000 Hz
General
Speaker
Full range: 10 cm (4 in.) dia., 3.2 ,
cone type (2)
Woofer: 13 cm (5 1/8 in.) dia., 4 ,
cone type (1)
Tweeter: 2 cm (13/16 in.) dia. (2)
Input
Built-in audio cable with stereo-mini plug:
Minimum input level 245 mV
AUDIO IN Jack (stereo minijack):
Minimum input level 245 mV
MIC MIX (microphone) jack (monaural minijack):
Sensitivity 2.5 mV, for low impedance
microphone
Minimum input level 2.5 mV (G770CPK)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 impedance headphones
Power output
4 W + 4 W (at 3.2 , 10% harmonic distortion)
Woofer:
12 W (at 4 , 10% harmonic distortion)
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz
(G700CP: US/G770CPK: CND, MX, E92)
230 - 240 V AC, 50 Hz (G700CP: SP)
230 V AC, 50 Hz
(G700CP: E41/G770CPK: AUS)
12 V DC, 8 R20 (size D) batteries
For remote control:
3 V DC, 2 R6 (size AA) batteries
Power consumption
AC 28 W
Photo : CFD-G770CPK
— Continued on next page —
•Abbreviation
AUS: Australian model
CND : Canadian model
E41 : AC 230V area in E model
E92 : AC 120V area in E model
MX : Mexican model
SP : Singapore model
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Sony CFD-G770CP Specifications

General IconGeneral
BrandSony
ModelCFD-G770CP
CategoryCD Player
LanguageEnglish

Summary

Service Manual Introduction and Specifications

Model Identification

Lists available Sony CFD-G700CP/G770CP/G770CPK models and variants.

Key Technical Specifications

Details audio power output, radio frequency range, and cassette specifications.

General Specifications and Features

Covers CD player, general features, and input/output specifications.

Servicing Procedures and Safety

Safety Precautions and Leakage Test

Essential safety checks, including AC leakage testing after service.

Handling Sensitive Components

Guidelines for handling optical pick-up blocks and laser diodes safely.

Test Modes and Diagnostics

Procedures for accessing panel tests, CD service modes, and error code diagnostics.

Disassembly and Component Replacement

Disassembly Flowchart

Outlines the sequence for dismantling the unit's various sections.

Detailed Disassembly Steps

Illustrates the process of removing cabinet and internal components.

Exploded Views and Parts Identification

Illustrates overall assembly and lists replacement parts for major sections.

Adjustments, Diagrams, and Parts Lists

Mechanical and Electrical Adjustments

Covers mechanical adjustments and electrical calibration for CD/Tuner.

Schematic and Printed Wiring Diagrams

Includes notes, board locations, and various schematic/PWB diagrams.

Electrical Parts List

Comprehensive list of electronic components with part numbers and specifications.

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