THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is printed in each block.)

For schematic diagrams.

Note:

•All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

•All resistors are in Ω and 1/4 W or less unless otherwise specified.

•¢ : internal component.

•C : panel designation.

Note:

The components identified by mark !or dotted line with mark !are critical for safety.

Replace only with part number specified.

•U : B+ Line.

•V : B– Line.

•H : adjustment for repair.

•Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions.

•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal produc- tion tolerances.

•Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc- tion tolerances.

•Circled numbers refer to waveforms.

•Signal path. F : FM

E : PB (TAPE)

d : PB (TAPE)

G : REC (DECK B)

J : CD

c : CD (digital out)

E : PB (MD)

j : REC (MD)

p : PB (digital out)

l : REC (dihgital in)

•Abbreviation

AUS : Australian model.

SP

: Singapore model..

MY

: Malaysia model.

JE

: Tourist model.

HK

: Hong Kong model.

AR

: Argentine model.

CH

:Chinese model.

KR

: korea model.

For printed wiring boards.

Note:

•X : parts extracted from the component side.

•p : parts mounted on the conductor side.

•® : Through hole.

•b: Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

•Indication of transistor

C

 

Q

These are omitted

BC E

 

B E

 

These are omitted

 

WAVEFORMS

– BD ( CD) SECTION –

1

3.1Vp-p

16.9MHz

IC101 %º XTAI

2

1.2Vp-p

(PLAY)

IC101 %¡ TE

3

2.5V

APPROX 500mVp-p (PLAY)

IC101 $¡ FE

4

2.5V

APPROX 200m Vp-p (PLAY)

IC101 #ª FE

5

2.4Vp-p

7.5∝sec

IC101 @§ MDP

– BD (MD) (1/2) SECTION –

1

0.46Vp-p

IC101 1, 2 (I, J) (PLAY mode)

2

0.1Vp-p

IC101 4 (A) (PLAY mode)

3

0.06Vp-p

IC101 8, 9 (E, F) (PLAY mode)

– BD (MD) (2/2) SECTION –

4

3.1Vp-p

22.581MHz

IC121 !§ (OSCI)

5

3.2Vp-p

44.1kHz

IC121 @¶ (LRCK)

6

3.8Vp-p

2.822MHz

IC121 @• (XBCK)

7

3.8Vp-p

11.29MHz

IC121 @ª (FS256)

8

3.2Vp-p

176.4kHz

IC121 (º (FS4)

HCD-MD373

– MAIN (3/3) SECTION –

1

5.2Vp-p

32.768kHz

IC501 !¡ XC-OUT

2

5.5Vp-p

16MHz

IC501 !£ X-OUT

– MD DIGITAL SECTION –

1

3.2Vp-p

10MHz

IC316 !£ (XOUT)

45 45

Page 44 Page 46
Page 45
Image 45
Sony HCD-MD373 Waveforms BD CD Section, BD MD 1/2 Section, BD MD 2/2 Section, Main 3/3 Section, MD Digital Section
Page 44 Page 46

HCD-MD373 specifications

The Sony HCD-MD373 is a compact mini audio system that offers an impressive blend of sound quality, versatility, and advanced technology, making it an ideal choice for audio enthusiasts and casual listeners alike. One of the standout features of the HCD-MD373 is its MiniDisc recorder/player, a legacy technology that allows users to record high-quality audio onto MiniDiscs, providing an alternative to traditional CDs and cassettes. This feature is particularly appealing for those looking to capture live music or create personalized playlists.

Another notable aspect of the HCD-MD373 is its integrated CD player, which supports a variety of formats including CD, CD-R, and CD-RW. This versatility means that users can enjoy their favorite albums without the hassle of switching devices. The audio system also includes a built-in AM/FM tuner, enabling users to easily tune into their favorite radio stations and enjoy live broadcasts.

The HCD-MD373 is equipped with a powerful amplifier that delivers impressive sound output, complemented by its two-way speaker system. The speakers provide a rich audio experience with clear highs and deep lows, making it suitable for various music genres, from classical to contemporary. The system also features a bass boost function that enhances low-frequency sounds, allowing for a more immersive listening experience.

In terms of connectivity, the HCD-MD373 offers multiple inputs and outputs, including audio line-in, headphone jacks, and a digital optical output. These features make it easy to connect external devices such as MP3 players, smartphones, or even home theater systems. Additionally, the audio system supports various playback options, including shuffle and repeat modes, providing enhanced flexibility for users.

The design of the HCD-MD373 is sleek and modern, with a compact form factor that allows it to fit seamlessly into any living space. Its user-friendly interface, complete with an LCD display, makes it easy to navigate and control playback settings. Overall, the Sony HCD-MD373 is a testament to Sony's commitment to quality audio experiences, combining innovative features, robust technology, and elegant design into a single, powerful audio system. Whether enjoying a quiet evening at home or hosting a gathering with friends, the HCD-MD373 is sure to deliver satisfying sound and performance.
Top Page Image Contents