Sony MDX-61 Apcref, Aapc, Xrst, Swdt, Sclk, Vref, Tenv, Thld, Vcc, Tlb, Csled, Adin, Flb, Iset

Page 19

3-8. IC PIN FUNCTION DESCRIPTION SERVO BOARD IC100 CXA1981AR (RF AMP)

Pin No.

Pin Name

I/O

Function

 

 

 

 

 

 

 

 

1

 

VC

O

Output terminal for the center point voltage (1/2 VCC) generated

 

2-7

 

A-F

I

Signal input from detector circuit in the optical pick-up block

 

 

 

 

 

 

 

 

8

 

FI

I

Signal input of the operational amplifier for F signal

 

 

 

 

 

 

 

 

9

 

FO

O

Signal output of the operational amplifier for F signal

 

10

 

PD

I

Front monitor Connected to the photo diode

 

 

 

 

 

 

 

 

11

APCREF

I

Input terminal for the setting of laser power

 

 

 

 

 

 

 

12

TEMPI

I

Terminal for the connection to temperature sensor

Not used this set (OPEN)

13

 

GND

Ground terminal

 

 

 

 

 

 

 

 

14

AAPC

O

LD amplifier output terminal of APC circuit

 

 

 

 

 

 

 

 

15

DAPC

O

Not used (OPEN)

 

 

16

TEMPR

O

Output terminal of the reference voltage for temperature sensor

Not used this set (OPEN)

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

XRST

I

Reset signal input from the system controller (IC600) When reset : “L”

 

 

 

 

 

18

SWDT

I

Write data signal input from the system controller (IC600)

 

19

 

SCLK

I

Clock signal input from the system controller (IC600)

 

 

 

 

 

 

 

20

 

XLAT

I

Latch signal input from the system controller (IC600)

 

 

 

 

 

 

 

21

 

VREF

O

Reference voltage output Not used this set (OPEN)

 

22

TENV

O

Not used (OPEN)

 

 

 

 

 

 

 

 

23

THLD

I

Not used (OPEN)

 

 

 

 

 

 

 

 

 

24

 

VCC

Power supply terminal (+3.3V)

 

 

25

 

TFIL

I

Not used (OPEN)

 

 

 

 

 

 

 

 

26

 

TE

O

Tracking error signal output to CXD2535CR (IC200)

 

 

 

 

 

 

 

27

 

TLB

I

Input terminal of the adder signal to tracking error

Not used this set (OPEN)

28

CSLED

I

Terminal for the sled error lowpass filter

 

 

 

 

 

 

 

 

 

29

 

SE

O

Sled error signal output to CXD2535CR (IC200)

 

 

 

 

 

 

 

 

30

ADFM

O

FM signal output terminal of the ADIP

 

 

31

 

ADIN

I

Input terminal by AC coupling is FM signal of the ADIP

 

 

 

 

 

 

32

ADAGC

I

External capacitor connect terminal for AGC of the ADIP

 

 

 

 

 

 

33

ADFG

O

ADIP double turned FM signal output to CXD2535CR (IC200)

(22.05kHz ± 1kHz)

34

 

AUX

O

Sub signal output to CXD2535CR (IC200)

 

 

 

 

 

 

 

 

 

35

 

FE

O

Focus error signal output to CXD2535CR (IC200)

 

 

 

 

 

 

 

 

36

 

FLB

I

Input terminal of the adder signal to focus error

Not used this set (OPEN)

37

ABCD

O

Light amount signal output to CXD2535CR (IC200)

 

 

 

 

 

 

 

38

BOTM

O

Light amount bottom hold signal output to CXD2535CR (IC200)

 

 

 

 

 

 

39

PEAK

O

Light amount peak hold signal output to CXD2535CR (IC200)

 

40

PFAGC

I

External capacitor connect terminal of AGC circuit for the RF

 

 

 

 

 

 

 

41

 

RF

O

Playback EFM RF signal output to CXD2535CR (IC200)

 

 

 

 

 

 

 

42

 

ISET

I

Setting terminal for the internal circuit constant

22kHz, BPF center frequency

43

 

AGCI

I

Input terminal by AC coupling is RF signal

 

 

 

 

 

 

 

 

 

44

 

RFO

O

RF signal output terminal

 

 

 

 

 

 

 

45

MORFI

I

Input terminal by AC coupling is RF signal of the MO

 

46

MORFO

O

RF signal output terminal of the MO

 

 

 

 

 

 

 

 

47, 48

 

I, J

I

Signal input from detector circuit in the optical pick-up block

 

 

 

 

 

 

 

 

 

– 33 –

Image 19
Contents MDX-61 SpecificationsDiagrams Table of ContentsExploded Views Electrical Parts List Section General Page Page Page Front Panel ASS’Y, Case Upper Section DisassemblyRear Panel ASS’Y, MD Section Chassis Base ASS’Y, Chassis OP ASS’Y Chassis Gear ASS’Y, Main BoardOptical PICK-UP KMS-193C/J2N Servo BoardSection Diagrams MDX-61 Block DiagramPage Page Page Page Page Page Servo section Swdt ApcrefAapc XrstWrpwr DfctShck ShckenDVSS1 WfckGFS TEST2Ffdr DchgTEST1 LddrSmdi VDDSCK SenseXras XOEXcas XCSDCS2 LESSES DCS1Clock DOOR-SWBUS-ON STR-SWCase Section Section Exploded ViewsVer Mechanism 171 EHS Flexible Lamp Main Section Electrical Parts ListTransistor MainRB604 1-239-516-11 RESISTOR, Network 1608 1Kx4 Main PowerPower Sensor Servo CNP1 Memo Revision History