Sony HCD-RX70 User Manual

SERVICE MANUAL
COMPACT DISC DECK RECEIVER
Ver 1.1 2002.11
9-960-853-12 Sony Corporation
2002K0500-1 Home Audio Company
C 2002.11 Published by Sony Engineering Corporation
US Model
HCD-D60/RX70
Canadian Model
AEP Model
UK Model
HCD-RX70
E Model
HCD-GR7/GR7J
Australian Model
HCD-GR7
HCD-D60/GR7/GR7J/RX70
— Continued on next page
—
HCD-D60/ GR7/GR7J/RX70 is the
tuner, deck, CD and amplifier section in
MHC-D60/ GR7/GR7J/RX70.
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM38-5BD29AL
Base Unit Name BU-5BD29AL
Optical Pick-up Name KSS-213D/Q-NP
Model Name Using Similar Mechanism HCD-H881
Tape Transport Mechanism Type TCM-220WR2
CD
Section
Tape deck
Section
SPECIFICATIONS
* Dolby noise reduction manufacrured
under license from Dolby Laboratories
Licensing corporation.
"DOLBY" and the double-D symbol a
are trademarks of Dolby Laboratories
Licensing Corporation.
CD player section
System Compact disc and digital audio
system
Laser Semiconductor laser
(λ=780nm)
Emission duration: continuous
Laser output Max. 44.6 µW*
*This output is the value mea-
sured at a distance of 200 mm
from the objective lens surface
on the Optical Pick-up Block
with 7 mm aperture.
Frequency response 2 Hz - 20 kHz (±0.5 dB)
Wavelength 780-790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
(Except US model)
Wavelength 600 nm
Output Level –18 dBm
For the US model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 8 ohm loads, both channels driven, from
70-20,000 Hz; rated 100 watts per channel
minimum RMS power, with no more than
0.9% total harmonic distortion from 250
milliwatts to rated output.
Amplifier section
Continuous RMS power output
Canadian model
100+100 watts
(8 ohms at 1 kHz, 5% THD)
AEP, German, East European, UK and CIS models
55+55 watts
(6 ohms at 1 kHz, 10% THD)
Other models 70+70 watts
(6 ohm sat 1 kHz, 10% THD)
Peak music power output (GR7/GR7J) :
1000 watts
Music power output
(AEP, German, East European, UK and CIS model):
95+95 watts
(6 ohms at 1kHz, 10% THD)
Inputs VIDEO/MD IN (phono jacks) :
voltage 250 mV,impedance 47
kilo ohms
MIX MIC (phone jack):
sensitivity 1 mV,
impedance 10 kilo ohms
Outputs VIDEO/MD OUT (phono jacks)
: voltage 250 mV impedance
1 kilo ohms
PHONES (stereo phone jack) :
accepts headphones of 8 ohms or
more.
SPEAKER : accepts impedance of
8 to 16 ohms (D60/RX70)
accepts impedance of 6 to 16 ohms
(GR7/GR7J)
SURROUND SPEAKER
(US and Canadian models):
accepts impedance of 16 ohms.
SUPER WOOFER (GR7/GR7J/
RX70 : US and Canadian models):
Voltage 1 V, impedance 1 kilo ohm
Photo: HCD-RX70

Sony HCD-RX70 Specifications

General

Brand	Sony
Model	HCD-RX70
Category	Stereo System
Language	English

Summary

SPECIFICATIONS

CD player section

Technical specifications for the CD player.

Inputs

Input signal specifications (voltage, impedance).

Outputs

Output signal specifications (voltage, impedance).

For the US model

AUDIO POWER SPECIFICATIONS

Power output and harmonic distortion for US models.

MEDEL IDENTIFICATION – BACK PANEL

General

Power requirements

Electrical power input details for various regions.

Power consumption

Power draw specifications for different models.

SAFETY CHECK-OUT

LEAKAGE TEST

Procedure for testing AC leakage current.

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

Precautions for handling sensitive optical components.

NOTES ON LASER DIODE EMISSION CHECK

Guidelines for safely checking laser diode output.

SECTION 1 GENERAL

SECTION 2 DISASSEMBLY

CASE

Steps and illustration for disassembling the outer case.

FRONT PANEL SECTION

Steps and illustration for removing the front panel.

CD MECHANISM DECK SECTION

Steps and illustration for disassembling the CD mechanism.

TAPE MECHANISM DECK SECTION

Steps and illustration for disassembling the tape mechanism.

BASE UNIT

Steps and illustration for disassembling the base unit.

MAIN BOARD

Steps and illustration for removing the main board.

TRAY SECTION

Steps and illustration for disassembling the tray section.

BD BOARD

Steps and illustration for disassembling the BD board.

OPTICAL PICK-UP, SLED MOTOR

Steps and illustration for disassembling optical and motor components.

MD BOARD

Steps and illustration for disassembling the MD board.

CAPSTAN MOTOR

Steps and illustration for removing the capstan motor.

SECTION 3 TEST MODE

MC Cold Reset

Resets all data to initial conditions.

CD Delivery Mode

Moves pickup for vibration durability.

MC Hot Reset

Resets set with memory data retained.

Sled Servo Mode

Allows free running of CD sled motor for cleaning.

Aging Mode

Checks operation of CD and tape deck sections.

SECTION 4 MECHANISM ADJUSTMENTS

Torque Measurement

Measures torque of various mechanical parts.

SECTION 5 ELECTRICAL ADJUSTMENTS

DECK SECTION

Adjustments related to the tape deck mechanism.

Record/Playback Head Azimuth Adjustment

Aligns the head for optimal playback.

Tape Speed Adjustment

Adjusts the speed of the tape transport.

Playback level Adjustment

Sets the playback output signal level.

TUNER SECTION

AM Section Adjustment

Adjustment procedures for the AM tuner section.

FM Section Adjustment

Adjustment procedures for the FM tuner section.

CD SECTION

Focus Bias check

Checks and adjusts focus bias for the CD player.

S Curve Check

Verifies the symmetry of the S-curve waveform.

SECTION 6 DIAGRAMS

Circuit Boards Location

Illustrates the location of various circuit boards within the unit.

PRINTED WIRING BOARD – TUNER SECTION–

Shows the layout of components on the tuner board.

SCHEMATIC DIAGRAM – TUNER SECTION–

Electrical schematic for the tuner section.

PRINTED WIRING BOARDS – CD SECTION–

Shows component layout on the CD section board.

SCHEMATIC DIAGRAM – CD SECTION–

Electrical schematic for the CD section.

SCHEMATIC DIAGRAM – MAIN /POWER SECTION–

Electrical schematic for the main and power supply sections.

PRINTED WIRING BOARD – POWER AMP SECTION–

Component layout for the power amplifier section board.

SCHEMATIC DIAGRAM – POWER AMP SECTION–

Electrical schematic for the power amplifier section.

6-15. IC PIN FUNCTION DESCRIPTION

SECTION 7 EXPLODED VIEWS

FRONT PANEL SECTION

Exploded view of the front panel components.

CHASSIS SECTION

Exploded view of the chassis components.

CD MECHANISM DECK SECTION-1

Exploded view of the CD mechanism deck, part 1.

TAPE MECHANISM DECK SECTION-1

Exploded view of the tape mechanism deck, part 1.

SECTION 8 ELECTRICAL PARTS LIST

MISCELLANEOUS

HARDWARE LIST

List of screws, washers, and other hardware used.

ACCESSORIES & PACKING MATERIALS

List of included accessories and packing items.

1. CORRECTION

2. ELECTRICAL ADJUSTMENT

FM Polar Adjustment (East European, CIS models only)

Adjusts FM polar characteristics for specific regions.

3. DIAGRAMS

Block Diagram – TUNER Section – (RX70: AEP, AED, G, UK Models)

Block diagram for the tuner section for specific models.

Block Diagram – CD Section –

Block diagram of the CD section.

Printed Wining Board – TUNER Section – (East European, CIS Models)

Printed wiring board layout for the tuner section.

CORRECTION-1

FRONT PANEL SECTION

Details corrections for the front panel section diagrams.

CONFIRM SYMPTOM&CHECK

Repair Procedure(1)

CD

Procedure for diagnosing CD-related symptoms.

Repair Procedure(2)

TC

Procedure for diagnosing TC-related symptoms.

DISASSEMBLY ( Tree )

Printing Method for Large Sized Documents Such As Circuit Diagrams

REVISION HISTORY