SERVICE MANUAL
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.
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
Sony Corporation
9-890-544-01
2010D08-1
Audio & Video Business Group
©
2010.04
Published by Sony EMCS (Malaysia) PG Tec
Photo: HCD-GTR88 (E4 Model)
Model Name Using Similar Mechanism
CD Section
CD Mechanism Type
Optical Pick-up Name
Model Name Using Similar Mechanism
Tape Deck Section
(only for E4 Model)
Tape Mechanism Type
SPECIFICATIONS
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
HCD-GTR88
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
COMPACT DISC DECK RECEIVER
E Model
Australian Model
HCD-GTZ4/GTZ4i/GTZ5
CDM88BL-DVBU101
KHM-313CAB/C2NP
HCD-GT111/GT222/GT444/GT555
CS-21SC-900TP
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
Need help?
Do you have a question about the HCD-GTR88 and is the answer not in the manual?
Questions and answers
what can i do if my subwoofers keep producing a rattling sound and it has been blown slightly
If your Sony HCD-GTR88 subwoofers are producing a rattling sound and appear to be blown, first correct any original service problems. Then, perform a safety check for AC leakage. Check all exposed metal parts, including screws and antenna terminals, for leakage current to ensure it does not exceed 0.5 mA. You can measure leakage using a commercial tester following the manufacturer's instructions. This ensures the equipment is safe before further troubleshooting or releasing it to use.
This answer is automatically generated
My Sony Modelo HCD- GTR888 produce a big sound when playing music and switches off and on , what can be the problem
Possible causes for a Sony HCD-GTR88 to produce loud sounds and switch off and on while playing music include:
1. Power supply issues: Incorrect voltage or unstable power supply (e.g., not matching the required AC voltage for the model) can cause the unit to turn off and on.
2. Mechanical faults: Faults in the amplifier, CD, USB, or tape sections may cause abnormal loud sounds or shutdowns.
3. Electrostatic discharge: Damage to the optical pick-up or other electronics due to electrostatic shock may affect normal operation.
4. Overload or internal protection: The system may shut down to protect itself from overcurrent or overheating due to high volume or component failure.
5. Faulty components: Issues with critical components identified in the service manual may lead to malfunction.
A detailed inspection and servicing are needed to identify the exact cause.
This answer is automatically generated