Sony HCD-GZR8D User Manual

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
HCD-GZR7D/GZR8D/
GZR9D
DVD DECK RECEIVER
9-889-156-02
2008G04-1
©
2008.07
E Model
HCD-GZR7D/GZR8D/GZR9D
Australian Model
HCD-GZR9D
Russian Model
HCD-GZR7D/GZR9D
Ver. 1.1 2008.07
• HCD-GZR7D/GZR8D/GZR9D are the
tuner, deck, DVD and amplifi er section
in MHC-GZR7D/GZR8D/GZR9D.
Photo: HCD-GZR8D
DVD
Section
Model Name Using Similar Mechanism HCD-GNZ777D/GNZ888D
DVD Mechanism Type CDM74HF-DVBU101//C
Optical Pick-up Name KHM-313CAB/C2RP
Tape Deck
Section
Model Name Using Similar Machanism HCD-GNZ777D/GNZ888D
SPECIFICATIONS
Amplifi er Section
The following measured at AC 230 V, 50/60 Hz (Russian model)
The following measured at AC 127, 220, 240 V, 50/60 Hz
(Saudi Arabian model)
The following measured at AC 120, 220, 240 V, 50/60 Hz (Other models)
MHC-GZR9D
Power output (rated): 100 W + 100 W (6 Ω at 1 kHz, 1% THD)
RMS output power (reference)
Front speaker: 180 W + 180 W (per channel at 6 Ω, 1 kHz,
10% THD)
Center speaker: 60 W (6 Ω at 1 kHz, 10% THD)
Surround speaker: 60 W + 60 W (per channel at 6 Ω, 1 kHz,
10% THD)
Subwoofer: 180 W (6 Ω at 80 Hz, 10% THD)
MHC-GZR8D
Power output (rated): 100 W + 100 W (6 Ω at 1 kHz, 1% THD)
RMS output power (reference)
Front speaker: 180 W + 180 W (per channel at 6 Ω, 1 kHz,
10% THD)
Center speaker: 60 W (6 Ω at 1 kHz, 10% THD)
Surround speaker: 60 W + 60 W (per channel at 6 Ω, 1 kHz,
10% THD)
MHC-GZR7D
Power output (rated): 100 W + 100 W (6 Ω at 1 kHz, 1% THD)
RMS output power (reference):
180 W+ 180 W (per channel at 6 Ω, 1 kHz,
10% THD)
Inputs
VIDEO/SAT VIDEO IN (phono jack):
1 Vp-p, 75 ohms
VIDEO/SAT AUDIO IN L/R (phono jacks):
voltage 250/450 mV, impedance 47 kilohms
MIC 1/MIC 2 (phone jacks):
sensitivity 1 mV, impedance 10 kilohms
– Continued on next page –

Sony HCD-GZR8D Specifications

General

Type	Mini Hi-Fi System
Tuner	FM/AM
CD Player	Yes
USB Playback	Yes
Bluetooth	No
Functions	CD, USB
Playable Media	CD, USB
Audio Output	Headphone Jack
Dimensions	Approx. 280 x 300 mm
Speakers	2-Way Speakers

Summary

Specifications

Amplifier Section Specifications

Details power output and RMS output for different speaker types.

Inputs Specifications

Lists input types, voltage, and impedance for audio and video connections.

Servicing Notes

Notes on Disconnecting OP Section and DMB18 Board

Guidance on electrostatic discharge prevention when handling the DVD mechanism.

General Information

Guide to Parts and Controls

Identifies unit and remote controls, explaining their functions.

Disassembly Procedures

CASE Disassembly Steps

Procedure for disassembling the main unit's outer casing.

LOADING PANEL Disassembly Steps

Steps for removing the disc loading panel mechanism.

Test Mode Operations

COLD RESET Procedure

Resets the system to initial conditions, clearing all data.

COMMON TEST MODE Operations

Checks equalizer, volume, and VACS ON/OFF.

Mechanical Adjustments

Torque Measurement Specifications

Table specifying torque values for various modes and meter readings.

Electrical Adjustments

DVD Section Adjustments

Adjustment procedures for the DVD section, including IOP measurement.

Tuner Section Adjustments

Procedures for checking FM tuner level and ensuring correct station reception.

Diagrams

Block Diagram - RF/Servo Section

Illustrates RF and servo signal paths for DVD system operation.

Exploded Views

Overall Section Exploded View

Visual breakdown of the unit's main assemblies and parts for identification.

Electrical Parts List

Capacitor Specifications

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