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Technicolor - Thomson CDP-CX57 IC PIN Function Description, Pin No Pin Name Function

Models: CDP-CX57

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7-12. IC PIN FUNCTION DESCRIPTION

• BD BOARD IC101 LA9241M (RF AMPLIFIER, FOCUS/TRACKING/SLED SERVO)

Pin No.

Pin Name

I/O

Function

 

 

 

 

 

 

1

FIN2

I

Signal input (B+D) from the optical pick-up detector

 

Added with FIN1 to create RF signal, subtracted with FIN1 to create focus error signal

 

 

 

 

 

 

 

 

2

FIN1

I

Signal input (A+C) from the optical pick-up detector

 

 

 

 

 

 

3

E

I

Signal input (E) from the optical pick-up detector

 

Subtracted with F to create tracking error signal

 

 

 

 

 

 

 

 

 

 

4

F

I

Signal input (F) from the optical pick-up detector

 

 

 

 

 

5

TB

I

Tracking error signal input for the tracking balance adjustment

 

 

 

 

 

6

TE–

I

Tracking error signal (invert signal) input terminal

 

 

 

 

 

 

7

TE

O

Tracking error signal output terminal

 

 

 

 

 

 

8

TESI

I

TES (Track Error Sense) comparator input terminal

 

Tracking error signal is band-passed and input

 

 

 

 

 

 

 

 

 

 

9

SCI

I

Shock detection input terminal

 

 

 

 

 

10

TH

I

Time constant setting terminal for the tracking gain adjustment

 

 

 

 

 

11

TA

O

TA amplifier output terminal

 

 

 

 

 

12

TD–

I

Creates a tracking phase compensation constant between TD (pin !£) and VR (pin %¥) pins

 

 

 

 

 

13

TD

O

Setting terminal for the tracking phase compensation

 

 

 

 

 

14

JP

I

Setting terminal for the tracking jump signal (kick pulse) amplitude

 

 

 

 

15

TO

O

Tracking coil (2-axis device) drive signal output to the LA6541 (IC103), and sled motor drive

signal output terminal

 

 

 

 

 

 

 

 

 

16

FD

O

Focus coil (2-axis device) drive signal output to the LA6541 (IC103)

 

 

 

 

17

FD–

I

Creates a focusing phase compensation constant between FD (pin !¤) and FA (pin !¥) pins

 

 

 

 

18

FA

O

Creates a focusing phase compensation constant between FD– (pin !¦) and FA– (pin !») pins

 

 

 

 

19

FA–

I

Creates a focusing phase compensation constant between FA (pin !¥) and FE (pin @¼) pins

 

 

 

 

 

20

FE

O

Focus error signal output terminal

 

 

 

 

 

 

21

FE–

I

Focus error signal (invert signal) input terminal

 

 

 

 

 

 

22

AGND

—

Ground terminal (analog system)

 

 

 

 

 

23

SP

O

Single end output of the CV+ (pin $¼) and CV– (pin #») pins signal

 

 

 

 

 

24

SPI

I

Spindle amplifier input terminal (invert input)

 

 

 

 

 

25

SPG

I

Gain setting resistor is connected when the spindle 12 cm mode

 

 

 

 

26

SP–

I

Works together with the SPD (pin @¦) to connect to the spindle phase compensation constant

 

 

 

 

27

SPD

O

Spindle motor (M101) drive signal output to the LA6541 (IC103)

 

 

 

 

 

28

SLEQ

I

Sled phase compensation constant is connected

 

 

 

 

 

29

SLD

O

Sled motor (M102) drive signal output to the LA6541 (IC103)

 

 

 

 

30

SL–

I

Sled feeding signal input from the system controller (IC501)

 

 

 

 

31

SL+

I

Sled feeding signal input from the system controller (IC501)

 

 

 

 

 

32

JP–

I

Tracking jump control signal input from the DSP (IC102)

 

 

 

 

 

 

33

JP+

I

Tracking jump control signal input from the DSP (IC102)

 

 

 

 

 

 

34

TGL

I

Tracking gain control signal input from the DSP (IC102)

Gain becomes low when TGL is “H”

 

 

 

 

 

35

TOFF

I

Tracking off control signal input from the DSP (IC102)

 

Tracking becomes off when TOFF is “H”

 

 

 

 

 

 

 

 

 

 

36

TES

O

Tracking error signal output to the DSP (IC102)

 

 

 

 

 

37

HFL

O

Tracking detection signal output to the DSP (IC102) HFL (High Frequency Level) is used to

determine whether the main beam is positioned on a pit or a mirror

 

 

 

38

SLOF

I

Sled servo off control signal input from the DSP (IC102)

Rough servo/phase control automatic

switching monitor input “H”: rough servo, “L”: phase servo

 

 

 

 

 

 

 

 

39

CV–

I

CLV error signal input from the DSP (IC102)

 

 

 

 

 

 

– 49 –

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Technicolor - Thomson CDP-CX57 service manual IC PIN Function Description, Pin No Pin Name Function
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CDP-CX57 specifications

The Technicolor - Thomson CDP-CX57 is a versatile and feature-rich compact disc player designed to enhance the listening experience for audiophiles and casual listeners alike. As part of Thomson's long-standing legacy in audio technology, the CDP-CX57 combines sleek design with advanced digital audio technologies, making it a popular choice for those seeking high-quality sound reproduction.

One of the standout features of the CDP-CX57 is its ability to support a wide range of disc formats. This player is compatible with standard audio CDs, as well as CD-R and CD-RW media, allowing users to enjoy a diverse library of music collections. Enhanced playback capabilities enable users to experience their favorite tracks with clarity and precision.

Equipped with high-performance digital-to-analog converters (DACs), the CDP-CX57 delivers rich, detailed audio reproduction. This technology transforms digital signals into analog signals, resulting in improved sound quality and a more immersive listening experience. The unit's excellent jitter suppression further ensures that audio playback remains stable and free of distortion.

The CDP-CX57 also features programmable playback options, allowing users to create custom playlists and enjoy their music in a personalized manner. Additionally, the unit comes with a user-friendly remote control, enabling effortless navigation through tracks and settings from a distance.

Built for longevity, the CDP-CX57 boasts a robust construction that protects sensitive internal components from external interference. This durability extends the player’s life and ensures optimal performance over time. Furthermore, the sleek design and compact footprint make it an attractive addition to any audio setup, fitting seamlessly into various environments.

The Technicolor - Thomson CDP-CX57 is an ideal blend of advanced technology and user-friendly features, catering to both seasoned audiophiles and those new to the world of high-fidelity audio. With its exceptional sound quality, versatile playback options, and durable design, it remains a standout choice for music lovers seeking a reliable and enjoyable listening experience.