Read Sony HCD-GRX7 / HCD-GRX7J / HCD-MD500 / HCD-R700 / HCD-RX707 / HCD-RX77 / HCD-RX77S / MHC-GRX7 / MHC-GRX7J / MHC-R700 / MHC-RX77 / MHC-RX77S Service Manual online
are the Amplifier, CD player, Tape Deck
and Tuner section in MHC-GRX7/GRX7J/
R700/RX77/RX77S.
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol
Section
DECK
Section
Continuous RMS power output (reference)
(8 ohms at 1 kHz, 10% THD)
DIN power output (rated)
(6 ohms at 1 kHz, DIN)
(6 ohms at 1 kHz, 10% THD)
(6 ohms at 1 kHz, 10% THD)
The following measured at AC 110, 220 V 50/60 Hz
DIN power output (rated)
(8 ohms at 1 kHz, DIN)
(8 ohms at 1 kHz, 10% THD)
DIN power output (rated)
(8 ohms at 1 kHz, DIN)
(8 ohms at 1 kHz, 10% THD)
MD/VIDEO IN:
kilohms
MD/VIDEO OUT:
European and Russian models:
distance of 200 mm from the objective
lens surface on the Optical Pick-up
Block with 7 mm aperture.
(Square optical connector jack, rear panel)
Wavelength
40 - 14,000 Hz (±3 dB),
using Sony TYPE II cassette
Stereo Plus
2 Band type:
Canadian model:
(with the interval set at 10 kHz)
531 - 1,710 kHz
(with the interval set at 9 kHz)
(with the interval set at 9 kHz)
530 - 1,710 kHz
(with the interval set at 10 kHz)
European and Russian models:
MW:
(with the interval set at 9 kHz)
(with the interval set at 3 kHz)
MW:
(with the interval set at 9 kHz)
(with the interval set at 5 kHz)
MW:
(with the interval set at 9 kHz)
530 - 1,710 kHz
(with the interval set at 10 kHz)
(with the interval set at 5 kHz)
Canadian model:
50/60 Hz
Canadian model:
Canadian model:
Remote RM-SR5 (1)
Batteries (2)
FM lead antenna (1)
Speaker cords (2)
Front speaker pads (8)
Setting the Time .............................................................. 7
TUNER Section .............................................................. 16
CD Section ...................................................................... 18
7-5. Block Diagram – MAIN Section – ................................. 29
7-6. Block Diagram – DISPLAY/KEY CONTROL/
7-12. Schematic Diagram – CD Section – ............................... 43
7-13. Printed Wiring Boards – CD MOTOR Section – .......... 45
7-14. Schematic Diagram – CD MOTOR Section – .............. 47
7-15. Printed Wiring Board – TAPE DECK Section – ........... 49
7-16. Schematic Diagram – TAPE DECK Section – .............. 51
7-17. Printed Wiring Board – LEAF SW Section – ............... 53
7-18. Schematic Diagram – LEAF SW Section – .................. 53
7-19. Printed Wiring Board – MAIN Section – ...................... 55
7-20. Schematic Diagram – MAIN Section (1/4) – ............... 57
7-21. Schematic Diagram – MAIN Section (2/4) – ................ 59
7-22. Schematic Diagram – MAIN Section (3/4) – ................ 61
7-23. Schematic Diagram – MAIN Section (4/4) – ................ 63
7-24. Printed Wiring Board – PANEL Section – .................... 65
7-25. Schematic Diagram – PANEL Section – ....................... 67
7-26. Printed Wiring Board – CD-SW Section – .................... 69
7-27. Schematic Diagram – CD-SW Section – ...................... 69
7-28. Printed Wiring Board – HP Section – ........................... 71
7-29. Schematic Diagram – HP Section – .............................. 71
7-30. Printed Wiring Board – POWER AMP Section – ......... 72
7-31. Schematic Diagram – POWER AMP Section – ............ 73
7-32. Printed Wiring Board
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
• Notice that the minus side of a tantalum capacitor may be dam-
BLOCK OR BASE UNIT
other than those specified herein may result in hazardous ra-
diation exposure.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
exceeding the limit for Class 1.
FOR STRÅLING.
ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.
– Back Panel –
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.