Sony HCD-GTR555 - Service Manual

SERVICE MANUAL
Sony Corporation
Published by Sony EMCS (Malaysia) PG Tec
HCD-GTR333/GTR555/GTR777/GTR888
SPECIFICATIONS
9-890-567-02
2011I80-1
©
2011.09
E Model
Ver. 1.1 2011.09
• HCD-GTR333 is the amplifi er, USB, CD player and tuner
section in MHC-GTR333.
• HCD-GTR555 is the amplifi er, USB, CD player and tuner
section in MHC-GTR555.
• HCD-GTR777 is the amplifi er, USB, CD player and tuner
section in MHC-GTR777.
• HCD-GTR888 is the amplifi er, USB, CD player and tuner
section in MHC-GTR888. Photo: HCD-GTR888 (E2 Model)
“WALKMAN” and “WALKMAN” logo are registered
trademarks of Sony Corporation.
MPEG Layer-3 audio coding technology and patents licensed
from Fraunhofer IIS and Thomson.
Windows Media is a registered trademark of Microsoft
Corporation in the United States and/or other countries.
This product contains technology subject to certain
intellectual property rights of Microsoft.
Use or distribution of this technology outside of this
product is prohibited without the appropriate license(s) from
Microsoft.
CD Section
Model Name Using Similar Mechanism
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
CD Mechanism Type CDM74HF-DVBU101//M
Optical Pick-up Name KHM-313CAB/C2NP
• Abbreviation
E2 : 120V AC area in E model
COMPACT DISC RECEIVER
Amplifi er section
The following are measured at AC 120 V –
240 V, 50/60 Hz
MHC-GTR888
Front/Satellite speaker
Power Output (rated):
290 W + 290 W (at 4 Ω, 1 kHz, 1% THD)
Front speaker
RMS output power (reference):
360 W + 360 W (per channel at 6 Ω, 1 kHz)
Satellite speaker
RMS output power (reference):
180 W + 180 W (per channel at 12 Ω, 1 kHz)
Subwoofer
RMS output power (reference):
260 W + 260 W (per channel at 8 Ω, 100 Hz)
MHC-GTR777
Front/Satellite speaker
Power Output (rated):
190 W + 190 W (at 4 Ω, 1 kHz, 1% THD)
Front speaker
RMS output power (reference):
220 W + 220 W (per channel at 6 Ω, 1 kHz)
Satellite speaker
RMS output power (reference):
110 W + 110 W (per channel at 12 Ω, 1 kHz)
Subwoofer
RMS output power (reference):
170 W + 170 W (8 Ω, 100 Hz)
MHC-GTR555
Front speaker
Power Output (rated):
160 W + 160 W (at 5 Ω, 1 kHz, 1% THD)
RMS output power (reference):
250 W + 250 W (per channel at 5 Ω, 1 kHz)
Subwoofer
RMS output power (reference):
250 W (5 Ω, 100 Hz)
MHC-GTR333
Front speaker
Power Output (rated):
130 W + 130 W (at 4 Ω, 1 kHz,1% THD)
RMS output power (reference):
250 W + 250 W (per channel at 4 Ω, 1 kHz)
Inputs
TV (AUDIO IN) L/R
Voltage 1.2 V, impedance 47 kΩ
DVD/PC (AUDIO IN) L/R
Voltage 1.2 V, impedance 47 kΩ
MIC (MHC-GTR888/MHC-GTR777 only)
Sensitivity 1 mV, impedance 10 kΩ
A, B port: Type A
USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3):
32 kbps – 320 kbps, VBR
WMA: 48 kbps – 192 kbps
AAC: 48 kbps – 320 kbps
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32 kHz/44.1 kHz/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
Transfer speed
Full-Speed
Supported USB device
Mass Storage Class
Maximum current
500 mA
Disc 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
Tuner section
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna
FM tuner section
Tuning range
87.5 MHz – 108.0 MHz (50 kHz step)
AM tuner section
Tuning range
Pan American models:
530 kHz – 1,710 kHz (10 kHz step)
531 kHz – 1,710 kHz (9 kHz step)
Other models:
530 kHz – 1,610 kHz (10 kHz step)
531 kHz – 1,602 kHz (9 kHz step)
General
Power requirements
AC 120 V – 240 V, 50/60 Hz
Power consumption
MHC-GTR888: 220 W
MHC-GTR777: 160 W
MHC-GTR555: 150 W
MHC-GTR333: 110 W
Dimensions (w/h/d) (excl. speakers)
(Approx.)
280 mm × 333 mm × 439.5 mm
Mass (excl. speakers) (Approx.)
HCD-GTR888: 7.1 kg
HCD-GTR777/HCD-GTR555: 6.7 kg
HCD-GTR333: 6.4 kg
Supplied accessories
Remote control (1)
R6 (Size AA) batteries (2)
FM lead/AM loop antenna (1)
Spacer A (MHC-GTR888 only) (2)
Spacer B (MHC-GTR888 only) (2)
Design and specifi cations are subject to change
without notice.

Summary

1. Servicing Notes

Optical Pick-up and Laser Diode Handling

Precautions for handling optical pick-up and laser diode emission checks.

Unleaded Solder and Board Repair

Information on unleaded solder characteristics and flexible circuit board repair.

Disc Tray Lock Release

Procedure to release the disc tray lock function.

2. Disassembly

2-1. Disassembly Flow

Sequential steps outlining the unit's disassembly process.

2-2. Case Removal

Procedure for removing the outer case of the unit.

2-4. Front Panel Section

Instructions for removing the front panel assembly.

3. Test Mode

Panel Test Mode Procedures

Steps to enter and use panel test mode for checking indicators and buttons.

Common Test Mode and Amplifier Check

Procedures for common test mode, amplifier checks, and volume control.

Special Modes (CD Ship, Tuner Step)

Instructions for CD ship modes and tuner step change functions.

4. Electrical Check

FM Auto Stop Check

Procedure to check FM auto stop function using a signal generator.

CD Tray Lock and Factory Preset Modes

Instructions for activating CD tray lock and factory preset modes.

5. Diagrams

5-1. Block Diagram - USB Section -

Block diagram illustrating USB section connectivity.

5-2. Block Diagram - RF;SERVO Section -

Block diagram of RF and Servo sections, detailing signal paths.

5-8. Printed Wiring Board - DMB21 Board (Side A) -

Printed wiring board layout for the DMB21 board, component side.

6. Exploded Views

6-1. Case Section

Exploded view of the unit's case and external panels.

6-2. Front Panel Section

Exploded view of the front panel and its components.

6-3. Back Panel Section

Exploded view of the back panel and its connections.

7. Electrical Parts List

Capacitors

List of capacitors with part numbers, descriptions, and specifications.

Resistors

List of resistors with part numbers, descriptions, and specifications.

Integrated Circuits (ICs)

List of integrated circuits with part numbers and descriptions.

Sony HCD-GTR555 Specifications

General

Brand	Sony
Model	HCD-GTR555
Category	Car Receiver
CD Player	Yes
MP3 Playback	Yes
USB Port	Yes
Bluetooth	No
AM/FM Tuner	Yes
Remote Control	Yes