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Sony HCD-RG551 User Manual

Sony HCD-RG551
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1
Ver 1.0 2004. 04
CD
Model Name Using Similar Mechanism NEW
Section
CD Mechanism Type CDM74-F1BD81
Optical Pick-up Name KSM-215DCP/C2NP
Tape Deck Model Name Using Similar Machanism NEW
Section Tape Transport Mechanism Type CWM43FF-05
SERVICE MANUAL
US Model
HCD-GX750/RX550
Canadian Model
HCD-GX750
E Model
HCD-RG551
HCD-GX750/RG551/RX550
AUDIO POWER SPECIFICATIONS
(HCD-GX750 USA model only)
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, both channels driven, from
120 – 10,000 Hz; rated 160 watts per channel
minimum RMS power, with no more than 10 %
total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
North American models:
HCD-GX750/RX550:
Front speaker
Continuous RMS power output (reference):
160 + 160 watts (6 ohms at
1 kHz, 10% THD)
Total harmonic distortion less than 0.07% (6 ohms at
1 kHz, 80 W)
Sub woofer
Continuous RMS power output (reference):
180 watts (6 ohms at
50 Hz, 10% THD)
Total harmonic distortion less than 0.07% (6 ohms at
50 Hz, 90 W)
SPECIFICATIONS
Other models:
HCD-RG551:
The following measured at AC 120, 127, 220, 240 V,
50/60 Hz
Front speaker
DIN power output (rated): 100 + 100 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
120 + 120 watts (6 ohms at
1 kHz, 10% THD)
Sub woofer
DIN power output (rated): 100 watts (6 ohms at
50 Hz, DIN)
Continuous RMS power output (reference):
120 watts (6 ohms at
50 Hz, 10% THD)
Inputs
GAME INPUT AUDIO L/R (phono jacks):
voltage 250 mV,
impedance 47 kilohms
GAME INPUT VIDEO (phono jack):
1 Vp-p, 75 ohms
Outputs
PHONES (stereo mini jack):
accepts headphones of
8 ohms or more
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-777-01
2004D04-1
© 2004. 04
– Continued on next page –
MINI HI-FI COMPONENT SYSTEM
HCD-GX750/RG551/RX550 is the
tuner, deck, CD and amplifier
section in MHC-GX750/RG551S/
RX550.
(Photo: HCD-GX750)

Table of Contents

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Sony HCD-RG551 Specifications

General IconGeneral
BrandSony
ModelHCD-RG551
CategoryStereo System
LanguageEnglish

Summary

Specifications

Audio Power Specifications

Details power output and total harmonic distortion for various models.

North American Models Specifications

Power output and distortion for North American HCD-GX750/RX550.

Other Models Specifications

Power output and distortion for HCD-RG551 and others.

General System Specifications

General Specifications

Covers power requirements, consumption, dimensions, and mass.

Tuner Specifications

Details FM and AM tuning ranges and intermediate frequencies.

Safety Check-out and Leakage Test

Safety Check-out Procedure

Steps to verify safety after service.

AC Leakage Test Methods

Procedures to measure AC leakage current from metal parts.

Safety-Related Component Warning

Identifies critical components for safety.

Servicing Notes

Service Positions

Illustrates specific setups for accessing AMP and BD81A boards.

General Information and Controls

Main Unit Button Locations

Lists main unit buttons and their reference pages.

Remote Control Buttons

Remote Control Button Locations

Lists remote control buttons and their reference pages.

Disassembly Procedures

Disassembly Flowchart

Outlines the sequential steps for disassembling the unit.

Initial Disassembly Steps

Case (Top) Removal

Instructions for removing the top case.

CD Door Removal

Steps for detaching the CD door.

Front Panel and CD Mechanism Disassembly

Front Panel Section Removal

Procedure to detach the front panel assembly.

CD Mechanism Deck Removal

Steps for removing the CD mechanism deck.

Test Modes

AM Tuner Step Change Mode

Procedure to switch AM channel steps between 9 kHz and 10 kHz.

Cold Reset Mode

Clears RAM data, returning the set to initial conditions.

Aging Mode Operation

Mode for checking CD and tape deck operational sequences.

Advanced Test Modes

Panel Test Mode

Tests all fluorescent segments and LEDs, and keyboard functions.

CD Ship Mode (LOCK)

Moves the pickup to a position safe for vibration.

Block Diagrams - CD Section

Optical Pick-up and RF Amp

Block diagram detailing the optical pickup and RF amplifier.

Block Diagrams - Main Section

Sound Processor and System Controller

Block diagram showing sound processing and system control.

Block Diagrams - Panel/Power Section

System Controller and Power Supply

Block diagram of panel control and power supply circuits.

Circuit Board Locations

Main and CD Mechanism Boards

Illustrates the physical placement of main and CD mechanism boards.

Diagram Notes and Waveforms

Printed Wiring Board Notes

Explains PCB conventions and unleaded solder usage.

Schematic Diagram Notes

Provides conventions for schematic diagrams and component values.

Panel Board Waveforms

Shows sample waveforms for the panel board circuits.

Printed Wiring Board - CD Mechanism (1/2)

BD81A Board - Side A

Shows the component layout for Side A of the BD81A board.

BD81A Board - Side B

Shows the component layout for Side B of the BD81A board.

Schematic Diagram - CD Mechanism (1/2)

BD81A Board Schematic

Circuit diagram for the BD81A board components.

Printed Wiring Board - CD Mechanism (2/2)

Motor, Driver, Sensor, SW Boards Layout

Component layout for LD, Driver, Sensor, and SW boards.

Schematic Diagram - CD Mechanism (2/2)

Driver Board Schematic

Circuit diagram for the driver board.

Schematic Diagram - Main Section (1/2)

Main Board Schematic (1/2)

Circuit diagram for the first half of the main board.

Schematic Diagram - Main Section (2/2)

Main Board Schematic (2/2)

Circuit diagram for the second half of the main board.

Printed Wiring Board - Main Section

Main Board Component Layout

Shows component placement on the main board.

Printed Wiring Board - Panel Section

Panel Board Component Layout

Shows component placement on the panel board.

Schematic Diagram - Panel Section (1/2)

Panel Board Schematic (1/2)

Circuit diagram for the first half of the panel board.

Schematic Diagram - Panel Section (2/2)

Panel Board Schematic (2/2)

Circuit diagram for the second half of the panel board.

Printed Wiring Boards - Jack Section

Connect Board and Stream LED Board Layout

Component layout for connect and stream LED boards.

Schematic Diagram - Jack Section

Connect Board Schematic

Circuit diagram for the connect board.

Printed Wiring Board - Sub Woofer Section

Sub Woofer Board Component Layout

Shows component placement on the sub woofer board.

Schematic Diagram - Sub Woofer Section

Sub Woofer Board Schematic

Circuit diagram for the sub woofer board.

Printed Wiring Board - Power Amp Section (GX750/RX550)

AMP Board (GX750/RX550) Layout

Component placement for the GX750/RX550 AMP board.

Printed Wiring Boards - Transformer Section (GX750/RX550)

Transformer Section Layout

Component layout for the transformer section.

Schematic Diagram - Power Section (GX750/RX550)

AMP Board Schematic (GX750/RX550)

Circuit diagram for the GX750/RX550 AMP board.

Printed Wiring Board - Power Amp Section (RG551)

AMP Board (RG551) Layout

Component placement for the RG551 AMP board.

Printed Wiring Boards - Transformer Section (RG551)

Transformer Section Layout (RG551)

Component layout for the RG551 transformer section.

Schematic Diagram - Power Section (RG551)

AMP Board Schematic (RG551)

Circuit diagram for the RG551 AMP board.

IC Block Diagrams

Key IC Functional Diagrams

Functional diagrams for key integrated circuits like IC301, IC251.

Exploded Views - Main Section

Main Unit Assembly Exploded View

Detailed exploded view of the main unit assembly.

Exploded Views - Front Panel (1)

Front Panel Section (1) Exploded View

Exploded view of the front panel section.

Exploded Views - Front Panel (2)

Front Panel Section (2) Exploded View

Exploded view of front panel components like cams and springs.

Exploded Views - Front Panel (3)

Front Panel Section (3) Exploded View

Exploded view of front panel parts like doors and knobs.

Exploded Views - Main Board Section

Main Board Assembly Exploded View

Exploded view showing the main board and its surrounding components.

Exploded Views - CD Mechanism Section (1)

CD Mechanism (1) Exploded View

Exploded view of the CD mechanism's main parts.

Exploded Views - CD Mechanism Section (2)

CD Mechanism (2) Exploded View

Exploded view of CD mechanism parts like gears and motors.

Electrical Parts List - AMP Section

AMP Section Capacitors and Diodes

List of capacitors and diodes for the AMP section.

AMP Section Resistors

List of resistors for the AMP section.

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