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E Model

Australian Model

2003G05-1

C

 2003.07

HCD-DX8 is the tuner, tape player, CD player
and amplifier section in MHC-DX8.

The following measured at AC 120, 220, 240V
50/60 Hz
DIN power output (rated) 160 + 160 watts

(6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

200 + 200 watts
(6 ohms at 1 kHz,
10% THD)

Inputs
MD/VIDEO (AUDIO) IN: voltage 450 mV/250 mV,
(phono jacks)

impedance 47 kilohms

MIC:

sensitivity 1 mV,

(phone jack)

impedance 10 kilohms

Outputs
PHONES:

accepts headphones of 8

(stereo mini jack)

ohms or more

FRONT SPEAKER:

accepts impedance of 6 to
16 ohms

SATELLITE SPEAKER:

accepts impedance of 6 to
16 ohms

System

Compact disc and digital
audio system

Laser

Semiconductor laser
(

λ

=780nm)

Emission duration:
continuous

Laser output

Max. 44.6 

µ

W*

*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

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

660 nm

Output Level

–18 dBm

This stereo system is equipped with the Dolby B-
type noise reduction system*.
* Manufactured under license from Dolby
Laboratories Licensing Corporation.
DOLBY and the double-D symbol ; are
trademarks  of Dolby Laboratories Licensing
Corporation.

Model Name Using Similar Mechanism

HCD-BX7

CD Mechanism Type

CDM58-K2BD38

Base Unit Name

BU-K2BD38

Optical Pick-up Block Name

KSM-213DAP

Optical Pick-up Name

KSS-213D

Model Name Using Similar Mechanism

NEW

Tape Transport Mechanism Type

TCM-230AWR11

CD

SECTION

TAPE DECK

SECTION

2

Recording system

4-track 2-channel stereo

Frequency response

40 – 13,000 Hz (

±

3 dB),

(DOLBY NR OFF)

using Sony TYPE I
cassette
40 – 14,000 Hz (

±

3 dB),

using Sony TYPE II
cassette

FM stereo, FM/AM superheterodyne tuner

Tuning range

87.5 – 108.0 MHz

Antenna

FM lead antenna

Antenna terminals

75 ohm unbalanced

Intermediate frequency

10.7 MHz

Tuning range
Middle Eastern models:

531 – 1,602 kHz
(with the interval set at 9
kHz)

Other models:

531 – 1,602 kHz
(with the interval set at 9
kHz)
530 – 1,710 kHz
(with the interval set at 10
kHz)

Antenna

AM loop antenna

Antenna terminals

External antenna terminal

Intermediate frequency

450 kHz

Power requirements
Australian models:

230 - 240 V AC, 50/60 Hz

Mexican models:

120 V AC, 60 Hz

Other models:

120 V, 220 V or 230 - 240
V AC, 50/60 Hz
Adjustable with voltage
selector

Power consumption

250 watts

Dimensions (w/h/d)

Approx. 280 x 360 x 425
mm

Mass :

Approx. 9.5 kg

Design and specifications are subject to change
without notice.

0

0

3

Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

• Keep the temperature of soldering iron around 270˚C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

The laser diode in the optical pick-up block may suffer electrostatic
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.

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

— BACK PANEL —

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····························· 16

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7-1.

Circuit Boards Location ··················································· 21

7-2.

Block Diagrams ································································ 22

7-3.

Printed Wiring Board  – BD Section – ····························· 24

7-4.

Schematic Diagram  – BD Section – ································ 25

7-5.

Printed Wiring Board  – MAIN Section – ························ 26

7-6.

Schematic Diagram  – MAIN (1/3) Section – ·················· 27

7-7.

Schematic Diagram  – MAIN (2/3) Section – ·················· 28

7-8.

Schematic Diagram  – MAIN (3/3) Section – ·················· 29

7-9.

Printed Wiring Board  – POWER AMP Section – ··········· 30

7-10. Schematic Diagram  – POWER AMP Section – ·············· 31
7-11. Printed Wiring Boards  – PANEL Section – ····················· 32
7-12. Schematic Diagram  – PANEL Section – ························· 33
7-13. Printed Wiring Boards  – LEAF SW Section – ················ 34
7-14. Schematic Diagram  – LEAF SW Section – ···················· 35
7-15. Printed Wiring Boards  – DRIVER Section – ·················· 36
7-16. Schematic Diagram  – DRIVER Section – ······················ 37
7-17. Printed Wiring Board  – TRANS Section – ······················ 38
7-18. Schematic Diagram  – TRANS Section – ························ 39
7-19. IC Pin Function Description ············································· 40
7-20. IC Block Diagrams ··························································· 42

······················································ 46

······································· 52

• Abbreviation

AR

: Argentine

AUS

: Australian

E2

: 120 V AC Area in E model

E3

: 240 V AC Area in E model

E2, E3, EA, MY, SP, AR models

MX, AUS models

4-225-040-3

s

4-225-040-4

s

EA

: Saudi Arabia

MY

: Malaysia

MX

: Mexican

SP

: Singapore

This appliance is classified
as a  CLASS 1 LASER
product. The CLASS 1
LASER PRODUCT
MARKING is located on
the rear exterior.

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