Sony HCD-GT222 - Service Manual

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
HCD-GT111/GT222/
GT444/GT555
SPECIFICATIONS
COMPACT DISC DECK RECEIVER
9-889-112-03
2008G05-1
©
2008.07
AEP Model
HCD-GT111/GT222/GT444
UK Model
HCD-GT444
E Model
Russian Model
HCD-GT111/GT222/GT444/GT555
Ver. 1.2 2008.07
• HCD-GT111 is the amplifi er, USB, CD player, tape
deck and tuner section in MHC-GT111/GT111BP.
• HCD-GT222 is the amplifi er, USB, CD player, tape
deck and tuner section in MHC-GT222.
• HCD-GT444 is the amplifi er, USB, CD player, tape
deck and tuner section in MHC-GT444.
• HCD-GT555 is the amplifi er, USB, CD player, tape
deck and tuner section in MHC-GT555.
Photo: HCD-GT555
CD
Section
Model Name Using Similar Mechanism
NEW
Mechanism Type
CDM88A-K6BD93-WOD
Optical Pick-up Block Name
KSM-213DCP
Tape deck
Section
Model Name Using Similar Mechanism
HCD-EC55/EC77
Tape Transport Mechanism Type
TCM-J1 or CS-21SC-900TP
Amplifier section
HCD-GT555
The following are measured at AC 120, 127,
220, 230 – 240 V 50/60 Hz
Front speaker
Power output (rated): 110 W + 110 W
(at 6 Ω, 1 kHz, 1% THD)
RMS output power (reference):
200W + 200 W (per channel at 6 Ω,
1kHz,10%THD)
Subwoofer
RMS output power (reference): 190 W
(at 6 Ω,100Hz,10%THD)
HCD-GT444
The following are measured at AC 120, 127,
220, 230 – 240 V 50/60 Hz
Front speaker
Power output (rated): 90 W + 90 W
(at 6 Ω, 1 kHz, 1% THD)
RMS output power (reference):
150 W + 150 W (per channel at 6 Ω,
1 kHz, 10% THD)
Subwoofer
RMS output power (reference): 150 W
(at 6 Ω, 100 Hz, 10% THD)
HCD-GT222
The following are measured at AC 120, 127,
220, 230 – 240V 50/60 Hz
Power output (rated): 110 W + 110 W
(at 6 Ω, 1 kHz, 1% THD)
RMS output power (reference):
200 W + 200 W (per channel at 6 Ω,
1 kHz, 10% THD)
HCD-GT111
The following are measured at AC 120, 127,
220, 230 – 240V 50/60 Hz
Power output (rated): 60 W + 60 W
(at 6 Ω, 1 kHz, 1% THD)
RMS output power (reference):
100 W + 100 W (per channel at 6 Ω,
1 kHz, 10% THD)
Inputs
AUDIO INPUT L/R : voltage
250 mV, impedance 47 kilohms
MIC: sensitivity 1 mV, impedance
10 kilohms
(USB) port: Type A
Outputs
PHONES: accepts headphones of 8 Ω or
more
FRONT SPEAKER: accepts impedance of
6 Ω
SUBWOOFER (HCD-GT555/
HCD-GT444 only): accepts
impedance of 6 Ω
USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3):
32 – 320 kbps, VBR
WMA: 32 – 192 kbps, VBR
AAC: 48 – 320 kbps
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
Transfer speed
Full-Speed
Supported USB device
Mass Storage Class
Maximum current
500 mA
CD player section
System: Compact disc and digital audio
system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6 μW
* This output is the value measurement
at a distance of 200 mm from the
objective lens surface on the Optical
Pick-up Block with 7 mm aperture.
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 88 dB
Tape deck section
Recording system: 4-track 2-channel, stereo
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range:
87.5 – 108.0 MHz (50 kHz step)
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz
AM tuner section
Tuning range
Pan American and Oceanian models:
530 – 1,710 kHz (with 10 kHz tuning
interval)
531 – 1,710 kHz (with 9 kHz tuning
interval)
European and Russian models:
531 – 1,602 kHz (with 9 kHz tuning
interval)
Other models:
530 – 1,610 kHz (with 10 kHz tuning
interval)
531 – 1,602 kHz (with 9 kHz tuning
interval)
Antenna: AM loop antenna, external antenna
terminal
Intermediate frequency: 450 kHz
Mexican model: AC 127 V, 60 Hz
Argentine model: AC 220 V, 50/60 Hz
Other models: AC 120, 220 or 230 –
240 V, 50/60 Hz, Adjustable with
voltage selector
Power consumption
HCD-GT555: 216 W
HCD-GT444: 286 W
HCD-GT222: 163 W
HCD-GT111: 150 W
Dimensions (w/h/d) (excl. speakers)
Approx. 231 × 361 × 437.5 mm
(9 1/8 × 14 1/4 × 17 1/4 inch)
Mass (excl. speakers)
HCD-GT555/GT444/GT222
(Except European model),
HCD-ZT4: 10.0 kg (22 lb 1 oz)
HCD-GT222 (European model):
9.6 kg
HCD-GT111: 8.0 kg
Design and specifications are subject to
change without notice.
General
Power requirements
European and Russian models:
AC 230 V, 50/60 Hz

Summary

Service Manual Overview

Model Identification

Lists various models covered by the manual, including AEP, UK, E, and Russian models.

Technical Specifications

Details amplifier, CD player, tape deck, and tuner specifications for different models.

Servicing Notes

Optical Pick-up and Laser Diode Handling

Precautions for handling optical components and laser safety during repair.

Solder Handling and Disc Tray Lock Release

Notes on unleaded solder characteristics and procedure to release disc tray lock.

Tray Opening and Knob Removal Procedures

Electrical Safety and CD Mechanism Service Positions

Board Service Positions and Tape Deck Identification

General Information and Controls

Unit and Remote Controls Overview

Explains operations using unit buttons and remote controls.

System Setup and Clock Setting

System Connections and Clock Setup

Instructions for connecting the system and setting the clock.

Disassembly Procedures

Disassembly Flowchart

Outlines the sequence for disassembling the unit.

Disassembly: Side Case and Top Panel

Disassembly: Tape Deck and Front Panel

Disassembly: Back Panel and Main Board

Disassembly: CD Mechanism and Poweramp Board

Disassembly: Base Unit and OP Base Assy

Disassembly: Belt Replacement

Test Modes

Panel Test Mode

Checks LEDs, keys, model, and software version.

Common Test Mode

Tests amplifier and tape operations.

System Reset and VACS Control

Procedures for cold reset and switching VACS ON/OFF.

Tuner, CD, and Error Mode Operations

CD Error Information and Ship Modes

Special CD Modes and Meter Tests

Mechanical Adjustments

Adjustment Precautions

Important precautions for performing mechanical adjustments.

Torque and Tape Tension Measurements

Specifications for torque and tape tension measurements.

Electrical Adjustments

Deck Section Adjustments

Demagnetization and head azimuth adjustment procedures.

CD Section Adjustments

Notes on CD block, test disc list, and S-curve check.

RF and FM Tune Level Checks

Diagrams: CD Servo and USB Section

Diagrams: Main Section

Diagrams: Amplifier Section

Diagrams: Panel and Power Supply Section

Diagram Notes and Board Locations

Schematic Diagram: CD Board (1;2)

Schematic Diagram: CD Board (2;2)

Printed Wiring Board: CD Board

TC Board Diagrams

Printed Wiring Board: USB Board

Schematic Diagram: USB Board

REG Section Diagrams

Printed Wiring Board: MAIN Board

Schematic Diagram: MAIN Board (1;4)

Schematic Diagram: MAIN Board (2;4)

Schematic Diagram: MAIN Board (3;4)

Schematic Diagram: MAIN Board (4;4)

JACK Section Diagrams

Printed Wiring Board: POWERAMP board

Schematic Diagram: POWERAMP Board (1;2)

Schematic Diagram: POWERAMP Board (2;2)

Printed Wiring Board: DISPLAY Board

Schematic Diagram: DISPLAY Board

Printed Wiring Boards: PANEL Section

Schematic Diagram: PANEL Section

Printed Wiring Board: TRANS1 Board (GT111: 120 V AC area in E, 240 V AC area in E, Chilean and Peruvian models)

Schematic Diagram: TRANS1 Board (GT111: 120 V AC area in E, 240 V AC area in E, Chilean and Peruvian models)

Printed Wiring Board: TRANS2 Board (GT222;GT444;GT555)

Schematic Diagram: TRANS2 Board (GT222;GT444;GT555)

Printed Wiring Board: TRANSX Board (GT111: AEP, Russian and Argentina models)

Schematic Diagram: TRANSX Board (GT111: AEP, Russian and Argentina models)

Waveforms and IC Block Diagrams

IC Block Diagrams for Main, TC, and Display Boards

IC Block Diagrams for Display and Motor Drive Boards

IC Pin Function Description: CD Board

IC Pin Function Description: USB Board

IC Pin Function Description: Main Board

Exploded Views

Case Section

Exploded view of the case assembly with part numbers.

Loading Panel Section

Display Board Section

Front Panel Section

Meter Display Assy

Top Panel Section

Back Panel Section

Main Board Section

Chassis Section

CD Mechanism Section

Electrical Parts List

5 V REG Board Parts

List of electrical components for the 5V REG board.

9 V REG Board Parts

List of electrical components for the 9V REG board.

CD Board Parts

List of electrical components for the CD board.

CD Board Electrical Parts

Display, LED, and Main Board Parts

Display, LED, and Main Board Parts

Display, LED, and Main Board Parts

Main Board Electrical Parts

Main, Mic, SW, and TC Board Parts

Main Board Electrical Parts

Main Board Electrical Parts

Main Board Electrical Parts

Main, Mic, SW, and TC Board Parts

Motor Drive Board Electrical Parts

Poweramp, SW, and TC Board Parts

Poweramp, SW, and TC Board Parts

TC Board Electrical Parts

Trans1, Trans2, and USB Board Parts

Trans1, Trans2, and USB Board Parts

USB, USB Connector, and Volume Board Parts

Miscellaneous and Accessory Parts

Service Manual Supplement

New;Former Discrimination

Identifies former and new versions of boards.

Diagrams

Printed Wiring Boards - JACK Section

Component layout for the JACK section.

Schematic Diagram - JACK Section

Printed Wiring Board: MAIN Board

Schematic Diagram: MAIN Board (1;4)

Schematic Diagram: MAIN Board (2;4)

Schematic Diagram: MAIN Board (3;4)

Schematic Diagram: MAIN Board (4;4)

Printed Wiring Board: DISPLAY Board

Schematic Diagram: DISPLAY Board

Printed Wiring Board: TRANS1 Board (GT111: 120 V AC area in E, 240 V AC area in E, Chilean and Peruvian models)

Schematic Diagram: TRANS1 Board (GT111: 120 V AC area in E, 240 V AC area in E, Chilean and Peruvian models)

TC Board Diagrams

Electrical Parts List

9 V REG Board Parts

List of electrical components for the 9V REG board.

Display Board Parts

List of electrical components for the display board.

Display, LED, and Main Board Parts

Display, LED, and Main Board Parts

Main Board Electrical Parts

Main Board Electrical Parts

Main Board Electrical Parts

Main Board Electrical Parts

Main Board Electrical Parts

Main, Mic, SW, and TC Board Parts

Trans1, Trans2, and USB Board Parts

Trans1, Trans2, and USB Board Parts

Revision History

Sony HCD-GT222 Specifications

General

Type	Mini Hi-Fi System
CD Player	Yes
FM/AM Tuner	Yes
Bluetooth	No
USB Playback	Yes
Weight	6.5 kg
Number of Discs	1
Audio Line In	Yes
Remote Control	Yes
Speaker Output	Yes
Speaker Type	2-way speaker
Playable File Types	MP3
Audio Output	Yes