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Sony HCD-RX77S User Manual

Sony HCD-RX77S
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MICROFILM
SERVICE MANUAL
MINI Hi-Fi COMPONENT SYSTEM
Canadian Model
HCD-RX77
AEP Model
HCD-R700/RX77/RX77S
UK Model
HCD-R700/RX77S
E Model
HCD-GRX7/GRX7J
Australian Model
HCD-GRX7
Tourist Model
HCD-GRX7J
Model Name Using Similar Mechanism HCD-H991AV
CD Mechanism Type
CDM38L-5BD29AL/
CDM38LH-5BD29AL
Base Unit Type BU-5BD29AL
Optical Pick-up Type KSS-213D/Q-NP
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type
TCM-230AWR1/
230PWR1
HCD-GRX7/GRX7J/R700/
RX77/RX77S
HCD-GRX7/GRX7J/R700/RX77/RX77S
are the Amplifier, CD player, Tape Deck
and Tuner section in MHC-GRX7/
GRX7J/R700/RX77/RX77S.
Photo: HCD-RX77
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.
CD
Section
TAPE
DECK
Section
SPECIFICATIONS
Amplifier section
Canadian model:
Continuous RMS power output (reference)
100 + 100 watts
(8 ohms at 1 kHz, 10% THD)
Total harmonic distortion less than 0.07%
(8 ohms at 1 kHz, 55 W)
European and Russian models:
DIN power output (rated) 60 + 60 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
80 + 80 watts
(6 ohms at 1 kHz, 10% THD)
Music power output (reference)
135 + 135 watts
(6 ohms at 1 kHz, 10% THD)
Other models:
The following measured at AC 110, 220 V 50/60 Hz
DIN power output (rated) 85 + 85watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
110 + 110 watts
(8 ohms at 1 kHz, 10% THD)
The following measured at AC 120, 240 V 50/60 Hz
DIN power output (rated) 105 + 105 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
130 + 130 watts
(8 ohms at 1 kHz, 10% THD)
Peak music power output (reference)
1500 watts
– Continued on next page –

Table of Contents

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Sony HCD-RX77S Specifications

General IconGeneral
Audio Channels2.0
CD PlayerYes
Remote ControlYes
TypeStereo System
TunerFM/AM
ConnectivityAudio input
FunctionsCD Player, Radio, Cassette Deck

Summary

Service Manual

Specifications Overview

Technical details of the system's audio and component performance.

CD Player Specifications

Details on the CD mechanism, laser, and output specifications.

Tape Player Specifications

Specifications for the tape deck recording and frequency response.

Tuner Specifications

Details about FM, AM, and UKV tuner performance and ranges.

General Specifications

Covers power requirements, dimensions, and supplied accessories for various models.

Servicing Notes

Handling Optical Pick-up and Base Unit

Precautions for handling the optical pick-up and flexible boards.

Laser Diode Emission Check

Guidelines for safely checking the laser diode emission.

Chip Component Replacement

Advice on replacing chip components, especially tantalum capacitors.

Flexible Circuit Board Repair

Instructions for repairing flexible circuit boards, including soldering temperature.

Disc Tray Operation

General Information

Location of Controls

Identifies and labels all operational controls on the unit.

Setting the Time

Disassembly Procedures

Test Mode Procedures

MC Cold Reset

Resets the system to initial conditions, clearing RAM data.

CD Delivery Mode

Moves the pickup to a vibration-durable position for shipping after repair.

MC Hot Reset

Resets the system while retaining preset data stored in memory.

Sled Servo Mode

Allows free running of the CD sled motor, useful for pickup cleaning.

AM Tuner Step Adjustment

How to change the AM tuner channel step between 9 kHz and 10 kHz.

All Lit and Key Check Mode

Checks all LEDs and the fluorescent indicator tube, and tests button functions.

Aging Mode Operation

Mechanical Adjustments

Torque Measurement

Specifies torque values for various tape deck mechanical adjustments.

Electrical Adjustments

Deck Section Adjustments

Procedures for demagnetizing heads and performing tape deck adjustments.

Test Tapes for Adjustment

Lists test tapes and their usage for adjustments.

Head Azimuth Adjustment

Procedure for adjusting the head azimuth for both decks.

Deck Electrical Adjustments

Tape Speed Adjustment (Deck B)

Procedure for adjusting the tape speed for Deck B.

Playback Level Adjustment (Deck A)

Procedure for adjusting the playback level for Deck A.

Tape Deck Electrical Adjustments

REC Bias Adjustment (Deck B)

Procedure for adjusting the recording bias for Deck B.

REC Level Adjustment (Deck B)

Procedure for adjusting the recording level for Deck B.

Tuner Section Adjustments

AM Section Tuning and Adjustment

Procedure for tuning and adjusting the AM section.

FM Section Adjustment

Adjustments for the FM section, performed after AM adjustments.

FM Tuned Level Adjustment

Adjusts the TUNED indicator for the FM band.

FM Polar Adjustment (East European/CIS)

CD Section Checks

S-Curve Waveform Check

Checks the symmetry and peak-to-peak level of the S-curve waveform.

RF Level Check

Checks the clarity and signal level of the RF waveform.

E-F Balance Traverse Check

Checks the E-F balance and traverse waveform for the CD mechanism.

Diagrams and Board Locations

Circuit Boards Location

Illustrates the location of various circuit boards within the unit.

Tuner Section Block Diagrams

Block Diagram (AEP, UK, German Models)

Block diagram of the tuner section for specific European models.

Tuner Section Block Diagrams

Block Diagram (East European, CIS Models)

Block diagram of the tuner section for East European and CIS models.

CD Mechanism Deck Block Diagram

Tape Deck Section Block Diagram

Main Section Block Diagram

Display, Key Control, Power Supply Block Diagram

Waveforms

Tuner Section Schematics

Schematic Diagram (AEP, UK, German Models)

Schematic diagram of the tuner section for AEP, UK, German models.

Tuner Section Printed Wiring Boards

Printed Wiring Board (AEP, UK, German Models)

Printed wiring board layout for the tuner section (AEP, UK, German models).

Tuner Section Printed Wiring Boards

Printed Wiring Board (East European, CIS Models)

Printed wiring board layout for the tuner section (East European, CIS models).

Tuner Section Schematics

Schematic Diagram (East European, CIS Models)

Schematic diagram of the tuner section for East European, CIS models.

CD Section Printed Wiring Boards

Printed Wiring Board (CD Section)

Printed wiring board layout for the CD section (BD Board).

CD Section Schematics

Schematic Diagram (CD Section)

Schematic diagram of the CD section (BD Board).

CD Motor Section Printed Wiring Boards

CD Motor Section Schematics

Tape Deck Section Printed Wiring Boards

Printed Wiring Board (Audio Board)

Printed wiring board layout for the Audio board related to the tape deck.

Tape Deck Section Schematics

Schematic Diagram (Audio Board)

Schematic diagram for the Audio board related to the tape deck.

Leaf SW Section Diagrams

Printed Wiring Board (Leaf SW Section)

Printed wiring board layout for the Leaf SW section.

Schematic Diagram (Leaf SW Section)

Schematic diagram for the Leaf SW section.

Main Section Printed Wiring Boards

Printed Wiring Board (Main Section - 1/4)

Printed wiring board layout for the Main section (Part 1/4).

Main Section Schematics

Schematic Diagram (Main Section - 1/4)

Schematic diagram of the Main section (Part 1/4).

Main Section Schematics

Schematic Diagram (Main Section - 2/4)

Schematic diagram of the Main section (Part 2/4).

Main Section Schematics

Schematic Diagram (Main Section - 3/4)

Schematic diagram of the Main section (Part 3/4).

CD Motor Section Printed Wiring Boards

Panel Section Printed Wiring Boards

Panel Section Schematics

CD-SW Section Diagrams

Printed Wiring Board (CD-SW Section)

Printed wiring board layout for the CD-SW section.

Schematic Diagram (CD-SW Section)

Schematic diagram for the CD-SW section.

HP Section Diagrams

Printed Wiring Board (HP Section)

Printed wiring board layout for the HP section.

Schematic Diagram (HP Section)

Schematic diagram for the HP section.

Power Amp Section Printed Wiring Boards

Power Amp Section Schematics

Transformer Section Diagrams

Printed Wiring Board (Transformer Section)

Printed wiring board layout for the Transformer section.

Schematic Diagram (Transformer Section)

Schematic diagram for the Transformer section.

IC Block Diagrams

IC Block Diagrams

IC101 CXA1992AR (BD Board)

Block diagram for IC101 (CXA1992AR) on the BD board.

IC Block Diagrams

IC701 M54641L (Motor Turn Board)

Block diagram for IC701 (M54641L) on the Motor (Turn) Board.

IC603 BA3833F-E2 (Panel Board)

Block diagram for IC603 (BA3833F-E2) on the Panel Board.

IC801 BA6286N (Motor Slide Board)

Block diagram for IC801 (BA6286N) on the Motor (Slide) Board.

IC602 μPC1330HA (Audio Board)

Block diagram for IC602 (μPC1330HA) on the Audio Board.

IC Pin Function Descriptions

IC501 (System Controller) Pin Functions

Pin function descriptions for IC501 (System Controller) on the Main Board.

IC Pin Function Descriptions

IC601 TMP87PM74F-6695 (Panel Board)

Pin function description for IC601 (TMP87PM74F-6695) on the Panel Board.

Exploded Views

Audio Section Parts List

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