Sony HCD-R770 User Manual

MICROFILM
SERVICE MANUAL
MINI Hi-Fi COMPONENT SYSTEM
HCD-GRX50/R770/RXD7
Photo: HCD-GRX50
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trade-
marks of Dolby Laboratories Licensing Corporation.
Canadian Model
HCD-RXD7
AEP Model
HCD-R770/RXD7
UK Model
HCD-R770
E Model
Australian Model
HCD-GRX50
HCD-GRX50/R770/RXD7 are the Ampli-
fier, CD player, Tape Deck and Tuner
section in HMC-GRX50/R770/RXD7.
SPECIFICATIONS
Amplifier section
Canadian model:
Continuous RMS power output (reference)
70 + 70 watts
(6 ohms at 1 kHz, 10% THD)
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 45 W)
European and Russian models:
DIN power output (rated) 80 + 80 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
100 + 100 watts
(8 ohms at 1 kHz, 10% THD)
Music power output (reference)
170 + 170 watts
(6 ohms at 1 kHz, 10% THD)
Other models:
The following measured at AC 120, 220, 240 V 50/60 Hz
DIN power output (rated) 110 + 110 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
140 + 140 watts
(8 ohms at 1 kHz, 10% THD)
– Continued on next page –
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM38LH-5BD32L
Base Unit Name BU-5BD32L
Optical Pick-up Name KSS-213D/Q-NP
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type TCM-230AWR2
CD
Section
Tape deck
Section
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Sony HCD-R770 Specifications

General

Power Output	100W
CD Player	Yes
Cassette Deck	Yes
Remote Control	Yes
Bluetooth	No
USB Port	No
Type	Mini Hi-Fi System
Radio Tuner	AM/FM
Speaker Configuration	2.0
Speakers	2 Speakers

Summary

SPECIFICATIONS

Amplifier Section Specifications

Details RMS power output, distortion, and impedance for the amplifier.

CD, Tape, and Tuner Specifications

Lists specs for CD mechanism, tape transport, tuner frequency ranges, and general dimensions.

Safety Warnings

Highlights critical safety warnings related to operation and components, including laser safety.

SERVICING AND OPERATION GUIDELINES

Servicing Notes and Precautions

Guidance on handling components, laser safety, and repair procedures.

General Operation and Setup

Location of controls and step-by-step instructions for setting the clock and timer.

Test Modes and Aging Operation

Details various test modes like resets, CD service, and aging mode for component checks.

MAINTENANCE AND TECHNICAL DETAILS

Disassembly Procedures

Steps for disassembling the unit's case, panels, and internal mechanisms.

Adjustments

Procedures for mechanical torque and electrical adjustments for deck and CD sections.

System Diagrams

Block diagrams, board schematics, wiring diagrams, and IC details.

Exploded Views

Visual breakdown of unit components by section like Case, Front Panel, Chassis, Mechanisms.

ELECTRICAL PARTS LIST

Component Listings

Comprehensive list of electronic components with part numbers and descriptions.