4-6. CIRCUIT BOARDS LOCATION

SERVO board

SWITCH board

MAIN board

DISPLAY board

DIGITAL board

MEX-5DI

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 diagram:

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 and 1/4 W or less unless otherwise specified.

% : indicates tolerance.

f : internal component.

C : panel designation.

Note:

Note:

The components identi-

Les composants identifiés par

fied by mark 0 or dotted

une marque 0 sont critiques

line with mark 0 are criti-

pour la sécurité.

cal for safety.

Ne les remplacer que par une

Replace only with part

piéce portant le numéro

number specified.

spécifié.

 

 

A : B+ Line.

Power voltage is dc 14.4V and fed with regulated dc power supply from ACC and BATT cords.

Voltages are taken with a VOM (Input impedance 10 M). 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

f : AM/MW/LW

J : CD

• Waveforms

— Servo Board —

(MODE: CD PLAY)

1

 

5

 

0.7Vp-p

3.5Vp-p

 

 

 

 

22.7µsec

IC2 qg (RFAC)

 

IC1 ih (LRCK)

2

 

6

 

0V

3.8Vp-p

 

 

Approx. 200mVp-p

 

474msec

IC2 qh (FE)

 

IC1 o; (BCK)

3

 

7

 

 

3Vp-p

 

0V

 

Approx. 600mVp-p

 

16.9344MHz

IC2 qk (TE)

 

IC1 of (XTAO)

4

 

8

 

3.3Vp-p

2.2Vp-p

 

 

7.6µsec

 

12.288MHz

IC1 rd (MDP)

 

 

IC11 yg (XTXAL)

Main Board

1

2.8Vp-p

4.332MHz

IC101 4 (OSCO)

2

2.2Vp-p

32.768kHz

IC501 uf (X0A)

3

2.8Vp-p

3.68MHz

IC501 os (X0)

4

3.5Vp-p

4MHz

IC901 4 (XOUT)

for printed wiring boards:

X : parts extracted from the component side.

Y : parts extracted from the conductor side.

x : parts mounted on the conductor side.

a : Through hole.

: Pattern from the side which enables seeing. (The other layer’s patterns are not indicated.)

Caution:

Pattern face side: Parts on the pattern face side seen from the

(Side B) pattern face are indicated.

Parts face side: Parts on the parts face side seen from the

(Side A)

parts face are indicated.

27 27

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Sony MEX-5DI service manual Circuit Boards Location, Waveforms Servo Board, Main Board

MEX-5DI specifications

The Sony MEX-5DI is a versatile and feature-rich in-car audio system designed to elevate the listening experience while driving. Catering to a wide range of audio enthusiasts, this head unit boasts cutting-edge technology and an array of features tailored to meet modern demands.

One of the standout features of the MEX-5DI is its built-in Bluetooth capability. This allows seamless hands-free calling and wireless audio streaming from compatible devices, making it easier for drivers to stay connected while keeping their focus on the road. The Bluetooth functionality extends to dual-phone pairing, allowing two smartphones to stay connected simultaneously for effortless switching between devices.

The MEX-5DI is equipped with a USB port that allows for direct control and playback from USB devices, bringing convenience and flexibility to music playback. It supports a variety of audio formats, ensuring that users can enjoy their favorite tracks without compatibility issues. The unit also features an auxiliary input, further expanding connectivity options.

Another feature that draws attention is the built-in Equalizer with 10 preset sound settings and 7 custom bands, enabling users to tailor their audio experience to their personal preferences. This allows for adjustments based on different genres of music or acoustics within a specific vehicle, resulting in optimized sound quality.

The unit supports High-Resolution Audio playback, ensuring that users experience pristine sound quality. This is complemented by features like DSEE (Digital Sound Enhancement Engine), which restores the quality of compressed audio files, making them sound closer to their original recordings.

The MEX-5DI offers an intuitive user interface with a large, easy-to-read display that enhances visibility while driving. It features customizable illumination options, allowing users to match the display to their vehicle’s interior ambiance. The faceplate is detachable, providing added security against theft.

For those looking to expand their audio setup, the unit includes three sets of preamp outputs, giving users the ability to connect external amplifiers or subwoofers. This feature ensures that the MEX-5DI can evolve with the users’ audio needs.

Overall, the Sony MEX-5DI combines innovative technologies with user-friendly features, making it an ideal choice for anyone seeking a high-quality car audio experience. Its blend of connectivity options, sound customization, and aesthetic appeal solidifies its position as a top contender in the car audio market. Whether for daily commutes or long road trips, the MEX-5DI promises to deliver an unparalleled audio journey.