CDP-CX57 - Sony Audio Service Manual (repair manual). Page 39

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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 !ª) pins

19

FA–

I

Creates a focusing phase compensation constant between FA (pin !•) and FE (pin @º) 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 $º) and CV– (pin #ª) 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)