Sony HCD-GTR6 - Service Manual

1
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
Ver. 1.0 2009. 05
SERVICE MANUAL
E Model
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
Australian Model
HCD-GTR6B/GTR8B
AUDIO POWER SPECIFICATION
Amplifi er section
MHC-GTR8 (HCD-GTR8/HCD-GTR8B)
The following are measured at
Mexican model: AC 127 V, 60 Hz
Other models: AC 120, 220, 240 V, 50/60 Hz
Front/Surround speaker
Power Output (rated): 210 W + 210 W (at 6 Ω, 1 kHz, 1% THD,
at LINK MODE)
Front speaker
RMS output power (reference):
280 W + 280 W (per channel at 8 Ω,
1 kHz, 10% THD)
Surround speaker
RMS output power (reference):
110 W + 110 W (per channel at 24 Ω,
1 kHz, 10% THD)
Subwoofer
RMS output power (reference):
160 W + 160 W (per channel at 6 Ω,
100 Hz, 10% THD)
SPECIFICATIONS
MHC-GTR7 (HCD-GTR7)
The following are measured at
Mexican model: AC 127 V, 60 Hz
Other models: AC 120, 220, 240 V, 50/60 Hz
Front/Surround speaker
Power Output (rated): 215 W + 215 W (at 6 Ω, 1 kHz, 1% THD, at LINK MODE)
Front speaker
RMS output power (reference):
285 W + 285 W (per channel at 8 Ω, 1 kHz, 10% THD)
Surround speaker
RMS output power (reference): 110 W + 110 W (per channel at 24 Ω,
1 kHz, 10% THD)
Subwoofer
RMS output power (reference): 210 W (at 8 Ω, 100 Hz, 10% THD)
Sony Corporation
Audio & Video Business Group
Published by Sony EMCS (Malaysia) PG Tec
9-890-515-01
2009E08-1
© 2009. 05
– Continued on next page –
COMPACT DISC DECK RECEIVER
• HCD-GTR6/GTR7/GTR8
are the tuner, CD and
amplifi er section in
MHC-GTR6/GTR7/GTR8
• HCD-GTR6B/GTR8B
are the tuner, deck, CD and
amplifi er section in
MHC-GTR6/GTR7/GTR8
Photo : HCD-GTR8B (E Model)
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
CD
Section
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM74HF-DVBU101//M
Optical Pick-up Name KHM-313CAB/C2NP
Tape Deck Section
only for HCD-GTR6B/GTR8B
Model Name Using Similar Mechanism HCD-GTX777/GTX787/GTX888
Tape Mechanism Type CFP42608

Summary

Specifications

AUDIO POWER SPECIFICATION

Details amplifier output power ratings for different models and speaker configurations.

SECTION 1 DISASSEMBLY

1-1. CASE (TOP)

Step-by-step guide for removing the top case of the unit.

1-10. MAIN BOARD

1-13. CD BLOCK SECTION

1-16. OPTICAL PICK-UP

SECTION 2 TEST MODE

System Test Modes

Covers GC Test, MC Test, Cold Reset, VACS ON/OFF, Tuner Step Change.

Maintenance Modes

Error Checking

SECTION 3 MECHANICAL ADJUSTMENTS

Precautions and Torque Measurement

Repair precautions and torque measurement specifications.

SECTION 4 ELECTRICAL ADJUSTMENTS

Tuner and Deck Section Adjustments

FM Tune Level Check and Head Azimuth Adjustment.

SECTION 5 DIAGRAMS

Block Diagrams Overview

Circuit Boards Location

Visual guide showing the physical location of all major circuit boards.

Main Board Diagrams

Printed wiring and schematic diagrams for the main board.

Subwoofer & Drive Board Diagrams

SECTION 7 ELECTRICAL PARTS LIST

CD SW BOARD

DISPLAY BOARD

Sony HCD-GTR6 Specifications

General

Type	Mini Hi-Fi System
Tuner Bands	FM/AM
CD Playback	Yes
Remote Control	Yes
Speakers	2 x 3-way speakers
Functions	CD