Sony HCD-GTX777 User Manual

1
HCD-GTX777/GTX787/GTX888
Ver. 1.1 2008. 05
SERVICE MANUAL
AEP Model
HCD-GTX777
E Model
HCD-GTX777/GTX787/GTX888
Australian Model
HCD-GTX888
HCD-GTX777/GTX787/GTX888
AUDIO POWER SPECIFICATION
Amplifi er section
MHC-GTX888 (HCD-GTX888)
The following are measured at
Mexican model: AC 127 V, 60 Hz
Other models: AC 120, 220, 230 – 240 V, 50/60 Hz
Front/Surround speaker
Power Output (rated): 190 W + 190 W (at 8 : and 24 :,
1 kHz, 1% THD, at LINK MODE)
RMS output power (reference):
295 W + 295 W (per channel at 8 : and
24 :, 1 kHz, 10% THD, at LINK MODE)
Subwoofer
RMS output power (reference):
160 W + 160 W (per channel at 6 :,
100 Hz, 10% THD)
SPECIFICATIONS
MHC-GTX787 (HCD-GTX787)
The following are measured at
Mexican model: AC 127 V, 60 Hz
Other models: AC 120, 220, 230 – 240 V, 50/60 Hz
Front speaker
Power Output (rated): 230 W + 230 W (at 4 :, 1 kHz, 1% THD)
RMS output power (reference):
380 W + 380 W (per channel at 4 :, 1 kHz, 10% THD)
MHC-GTX777 (HCD-GTX777)
European model only
The following are measured at
AC 230 V, 50/60 Hz
Front/Surround speaker
Power Output (rated): 235 W + 235 W (at 8 : and 8 :, 1 kHz,
1% THD, at LINK MODE)
RMS output power (reference):
380 W + 380 W (per channel at 8 : and
8 :, 1 kHz, 10% THD, at LINK MODE)
Sony Corporation
Audio Business Group
Published by Sony EMCS (Malaysia) PG Tec
9-890-504-02
2008E08-1
© 2008. 05
– Continued on next page –
CD DECK RECEIVER
• HCD-GTX777/GTX787/GTX888
are the tuner, deck, CD and
amplifi er section in
MHC-GTX777/GTX787/GTX888.
Model Name Using Similar Mechanism HCD-GTX66/GTX77/GTX88
CD
CD Mechanism Type CDM74KF-K6BD93-WOD//M
Section
Optical Pick-up Name KSM-213DCP/C2NP
Tape Deck Model Name Using Similar Mechanism NEW
Section Tape Mechanism Type CFP42608
Photo : HCD-GTX888 (E Model)
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Sony HCD-GTX777 Specifications

General

Audio Channels	2.0
CD Player	Yes
Radio Tuner	FM/AM
Bluetooth	No
USB Playback	Yes
Speaker Configuration	2 speakers
Remote Control	Yes
Playable Media	CD, CD-R, CD-RW
Preset Stations	30
Functions	CD, Radio
Type	Mini Hi-Fi System

Summary

SECTION 1 GENERAL

Guide to parts and controls

Explains unit and remote operations and button functions.

SECTION 2 DISASSEMBLY

MAIN BOARD

Procedure for accessing and removing the main board.

OPTICAL PICK-UP

Instructions for removing the optical pick-up unit.

SECTION 3 TEST MODE

GC TEST MODE

Checks system components like LEDs, buttons, and controls.

CD SERVICE MODE

Allows CD sled motor movement for optical pick-up cleaning.

SECTION 4 MECHANICAL ADJUSTMENTS

Torque Measurement

Specifications for torque settings in mechanical adjustments.

SECTION 5 ELECTRICAL ADJUSTMENTS

FM Tune Level Check

Verifies FM signal reception and tuned indicator status.

RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT

Adjusts head for optimal output on test tape.

SECTION 6 DIAGRAMS

6-1. BLOCK DIAGRAM — RF/SERVO SECTION —

RF and servo signal path illustration.

6-12. PRINTED WIRING BOARD — MAIN BOARD —

Physical component layout of the main board.

6-13. SCHEMATIC DIAGRAM — MAIN BOARD (1/4) —

First part of the main board schematic.

SECTION 7 EXPLODED VIEWS

7-1. MAIN SECTION

Exploded view of main unit's internal components.

7-3. FRONT PANEL SECTION (1)

Disassembly details for the front panel section.

SECTION 8 ELECTRICAL PARTS LIST

BD93

List of electrical components for the BD93 board.