Sony HCD-RX90 Service Manual

AEP Model
UK Model
HCD-RX90
E Model
Australian Model
Tourist Model
HCD-GR8
SERVICE MANUAL
HCD-GR8/RX90
HCD-GR8/RX90 is the tuner, deck, CD and
amplifier section in MHC-GR8/RX90.
Model Name Using Similar Mechanism HCD-GR7/RX70
CD Mechanism Type CDM38L-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 manufactured
under license from Dolby Laboratories
Licensing corporation.
"DOLBY" and the double-D symbol a
are trademarks of Dolby Laboratories
Licensing Corporation.
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength 600 nm
Output Level –18 dBm
Tape player section
Recording system 4-track 2-channel stereo
Frequency response 60 – 13,000 Hz (±3 dB),
(DOLBY NR OFF) using Sony TYPE I casstte
60 – 14,000 Hz (±3 dB),
using Sony TYPE II cassette
Wow and flutter ±0.15% W.Peak (IEC)
0.1% W.RMS (NAB)
±0.2% W.Peak (DIN)
– Continued on next page –
Amplifier section
DIN power output (RX90)
80+80 watts
(8 ohms, at 1kHz, DIN)
Continuous RMS power output
RX90: 100+100 watts
(8ohms at 1kHz, 10% THD)
GR8: 90+90 watts
(8ohms at 1kHz, 10% THD)
Peak music power output
GR8: 1500 watts
Music power output
RX90: 160+160 watts
(8ohms at 1kHz, 10% THD)
Inputs VIDEO/MD IN (phono jacks):
voltage 250 mV, impedance
47 kilohms MIX MIC (phone
jack): sensitivity 1 mV,
impedance 10 kilohms
Outputs VIDEO/MD OUT (phone
jacks): voltage 250 mV
impedance 1 kilohms
PHONES (stereo phone jack):
accepts headphones of 8 ohms
or more.
SPEAKER:
accepts impedance of 8 to 16
ohms
SURROUND SPEAKER:
accepts impedance of 16
ohms.
SUPER WOOFER:
Voltage 1 V, impedance 1 kilo
ohm
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=780 nm)
Emission duration: continuous
Laser output Max. 44.6 µW*
*This output is the value
measured 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
Photo: HCD-RX90
MINI Hi-Fi COMPONENT SYSTEM
Ver 1.1 2002.06
9-960-881-12 Sony Corporation
2002F0500-1 Home Audio Company
C 2002.06 Published by Sony Engineering Corporation

Sony HCD-RX90 Specifications

General

Type	Stereo System
CD Player	Yes
Tuner	FM/AM
Bluetooth	No
USB Port	No
Cassette Deck	Yes
Power Output	100 W

Summary

SPECIFICATIONS

Amplifier section

Outlines power output and impedance specifications for the amplifier.

Tuner Section

Safety Precautions

Servicing Notes

Handling Optical Pick-up Block

Instructions for safely handling the optical pick-up block or base unit during service.

Laser Diode Emission Check

Guidance on checking laser diode emission safely, avoiding direct exposure.

Section 1 General

Getting Started: Hooking Up the System

Guides the user through initial system setup and connection procedures.

Presetting Radio Stations

Connecting Optional AV Components

Connecting MD Deck

Details for connecting an MD deck for digital or analog recording.

Basic Operations: Playing a CD

Playing a CD (continued)

Further instructions on CD playback, track selection, and stopping.

Recording a CD: CD Synchro Recording

Guides on recording from CDs to tape using the CD Synchro Recording feature.

Listening to the Radio

Recording from the Radio

Explains how to record radio programs onto tape.

Recording from Radio (continued)

Playing a Tape

Instructions on how to play cassette tapes, including tape type detection.

Recording from Tape: High-speed Dubbing

The CD Player: Using the CD Display

Information on using the CD player's display and playback features.

Programming CD Tracks: Programme Play

The Tape Deck: Recording Manually

Recording CD by Specifying Track Order: Programme Edit

DJ Effects

Sound Adjustment

Selecting Audio Emphasis

Adjusting Audio Emphasis: Graphic Equalizer

Other Features

Using Radio Data System (RDS)

Locating Station by Programme Type (PTY)

Timer-Recording Radio Programmes

Section 2 Disassembly

CASE

FRONT PANEL SECTION

CD Mechanism Deck Section

Tape Mechanism Deck Section

BASE UNIT

MAIN BOARD

TRAY SECTION

BD BOARD

OPTICAL PICK-UP, SLED MOTOR

AUDIO BOARD

CAPSTAN MOTOR

Section 3 Test Mode

MC Cold Reset

CD Delivery Mode

Aging Mode

Section 4 Mechanical Adjustments

Section 5 Electrical Adjustments

DECK SECTION Adjustments

Tape Speed Adjustment

Playback Level Adjustment

Record Bias Current Adjustment

Record Level Adjustment

TUNER SECTION Adjustments

CD SECTION Adjustments

S Curve Check

Focus Bias Check

E-F Balance Check

Section 6 Diagrams

Printed Wiring Board - Tuner Section

Schematic Diagram - Tuner Section

Printed Wiring Board CD Section

Schematic Diagram - CD Section

Printed Wiring Boards CD Motor Section

Schematic Diagram - CD Motor Section

Printed Wiring Boards Deck Section

Schematic Diagram Deck Section

Schematic Diagram Main/Power Section

Printed Wiring Boards - Main/Power Section

Schematic Diagram Panel Section

Printed Wiring Boards Panel Section

Printed Wiring Board Power Amp Section

Schematic Diagram Power Amp Section

IC Pin Function Description: Main Board IC301

IC Pin Function Description (continued)

Panel Board IC601 (Graphic Control)

Section 7 Exploded Views

Case, MD Assy Section

Front Panel Section

Chassis Section

CD Mechanism Deck Section-1

CD Mechanism Deck Section-2

Base Unit Section

Tape Mechanism Deck Section-1

Tape Mechanism Deck Section-2

Section 8 Electrical Parts List

Audio Parts List

BD Parts List

CD SW Parts List

DJ Parts List

HP/MIC Parts List

PANEL Parts List

PANEL Parts List (continued)

MOTOR Parts List

POWER AMP Parts List

TCB Parts List

TCB Parts List (continued)

TRANS Parts List