Sony HCD-GTR88 - User Manual

SERVICE MANUAL
Sony Corporation
Audio & Video Business Group
Published by Sony EMCS (Malaysia) PG Tec
HCD-GTR88
COMPACT DISC DECK RECEIVER
9-890-544-01
2010D08-1
©
2010.04
E Model
Australian Model
Ver. 1.0 2010.04
• HCD-GTR88 is the amplifi er, USB, CD player,
tuner and tape deck (only E4 Model) section in
MHC-GTR88. Photo: HCD-GTR88 (E4 Model)
CD Section
Model Name Using Similar Mechanism HCD-GTZ4/GTZ4i/GTZ5
CD Mechanism Type CDM88BL-DVBU101
Optical Pick-up Name KHM-313CAB/C2NP
Tape Deck Section
(only for E4 Model)
Model Name Using Similar Mechanism HCD-GT111/GT222/GT444/GT555
Tape Mechanism Type CS-21SC-900TP
SPECIFICATIONS
Amplifi er section
The following are measured at
Mexican model:
AC 127 V, 60 Hz
Other models:
AC 120 V, 220 V, 240 V, 50/60 Hz
Front/Satellite Speaker
Power Output (rated):
200 W + 200 W (at 6 , 1 kHz,
1% THD)
Front Speaker
RMS output power (reference):
345 W + 345 W (per channel at 8 ,
1 kHz)
Satellite Speaker
RMS output power (reference):
140 W + 140 W (per channel at 24 ,
1 kHz)
Subwoofer
RMS output power (reference):
200 W + 200 W (per channel at 6 ,
100 Hz)
Inputs
PC (AUDIO IN) L/R
Voltage 700 mV, impedance 47 kilohms
MIC
Sensitivity 1 mV, impedance 10 kilohms
(USB) port: Type A
Outputs
PHONES
Accepts headphones of 8  or more
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 W
* 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
(For African model only)
Recording system
4-track 2 channel, stereo
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
North American and Brazilian models:
87.5 MHz – 108.0 MHz (100 kHz step)
Other models:
87.5 MHz – 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 kHz – 1,710 kHz (with 10 kHz tun-
ing interval)
531 kHz – 1,710 kHz (with 9 kHz tuning
interval)
Other models:
530 kHz – 1,610 kHz (with 10 kHz tun-
ing interval)
531 kHz – 1,602 kHz (with 9 kHz tuning
interval)
Antenna
AM loop antenna, external antenna
terminal
Intermediate frequency
450 kHz
General
Power requirements
Oceanian model: AC 230 V – 240 V,
50/60 Hz
Mexican model: AC 127 V, 60 Hz
Argentina model: AC 220 V, 50/60 Hz
Other models: AC 120 V, 220 V or
230 V – 240 V, 50/60 Hz, Adjustable
with voltage selector
Power consumption: 460 W
Dimensions (w/h/d) (excl. speakers)
(Approx.)
231 mm × 361 mm × 518 mm
Mass (excl. speakers) (Approx.)
African and Pan Asian models: 16.2 kg
Other models: 15.7 kg
Design and specifi cations are subject to
change without notice.
• Abbreviation
E4 : African model

Summary

SPECIFICATIONS

Amplifier Section

Details power output, impedance, and input/output specifications for the amplifier.

SERVICING NOTES

Handling Optical Pick-up Block

Precautions for preventing electrostatic breakdown and handling the optical pick-up block.

DISASSEMBLY

TEST MODE

Panel Test Mode

Used to check fluorescent indicator tube, LEDs, keys, and software version.

Common Test Mode

Used to check operations of the amplifier section.

Cold Reset

Clears all data and resets EEPROM to initial conditions.

MECHANICAL ADJUSTMENTS

Torque Measurement

Specifications and methods for measuring torque on various mechanical parts.

Tape Tension Measurement

Specifications and methods for measuring tape tension in the mechanism.

ELECTRICAL ADJUSTMENTS

DIAGRAMS

Block Diagrams

Overall system block diagrams illustrating signal flow for various sections.

Schematic Diagram - DMB19 Board

Detailed circuit schematic for the DMB19 board.

Main Board Diagrams

Printed wiring board and schematic diagrams for the main board.

IC Block Diagrams

DMB19 Board ICs

Block diagrams for key ICs on the DMB19 board, detailing their operations.

IC Pin Function Description

DMB19 Board IC101 Pin Functions

Detailed list of pin names, I/O, and descriptions for IC101 on the DMB19 board.

HUB Board IC1501 Pin Functions

Pinout and function descriptions for the USB controller IC on the HUB board.

MAIN Board IC401 Pin Functions

Pin details and functions for the system controller IC on the main board.

EXPLODED VIEWS

ELECTRICAL PARTS LIST

Sony HCD-GTR88 Specifications

General

Type	Mini Hi-Fi Component System
CD Player Type	3-Disc Changer
Remote Control	Yes
Speakers Configuration	2-Way Bass Reflex
Functions	CD
Tuner Bands	FM, AM
Speakers	2 Speakers