•SERVO BOARD IC501 CXP84340-217Q (MD MECHANISM CONTROLLER)

Pin No.

 

Pin Name

I/O

Description

 

 

 

 

 

 

 

 

 

 

 

1 to 5

TIN3 to TIN7

I/O

Input of the 4⋅ 8 matrix test keys (“L” is always output, except in test mode)

Not used (open)

 

 

 

 

 

 

 

 

 

6

 

LOAD

O

Loading motor control signal output to the motor driver (IC305)

“H” active

*1

 

 

 

 

 

 

 

 

 

7

 

EJECT

O

Loading motor control signal output to the motor driver (IC305)

“H” active

*1

 

 

 

 

 

 

 

 

 

 

 

 

8, 9

 

NCO

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

10

 

MDMON

O

Power supply on/off control signal output of the MD mechanism deck section main power supply

 

and loading motor drive (IC305) power supply

“H”: power on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

E-SW

I

Inputs the disc loading completion detect switch detection signal

 

 

 

 

“L”: When completed of the disc loading operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

AG-OK

O

Output of aging status in test mode “L”: under aging, “H”: aging completed

Not used (open)

 

 

 

 

 

 

 

 

13

 

ADJ-OK

O

Output of status when aging completed in test mode

“L”: aging NG, “H”: aging OK

 

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14 to 17

 

NCO

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

DFCTSEL

I

Select whether defect function is used for the CXD2652AR (IC301)

 

 

 

“L”: used this function , “H”: not used this function (fixed at “H” in this set)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

 

DPLLSEL

I

Select whether digital PLL function is used for the CXD2652AR (IC301)

 

 

“L”: used this function , “H”: not used this function (fixed at “H” in this set)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

EMPHSEL

I

Select whether emphasis signal output from pin or unilink data

 

 

 

 

“L”: outputs from both pin and unilink data, “H”: output from pin only (fixed at “H” in this set)

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

LOCK

O

Mini-disc lock detection signal output to the master controller (IC501)

“H”: lock

 

 

 

 

 

 

 

 

 

 

 

22

 

NCO

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

 

23

 

2M/4M

I

Select whether D-RAM capacitance 2M bit or 4M bit

“L”: 4M bit (external D-RAM) , “H”: 2M

 

bit (internal D-RAM of CXD2652AR) (fixed at “L” in this set)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24, 25

 

NCO

O

Not used (open)

 

 

 

 

 

26

 

MNT0

I

Focus OK signal input from the CXD2652AR (IC301)

 

 

 

 

“H” is input when focus is on (“L”: NG)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27

 

MNT1

I

Track jump detection signal input from the CXD2652AR (IC301)

 

 

 

 

 

 

 

 

 

 

 

28

 

MNT2

I

Busy monitor signal input from the CXD2652AR (IC301)

 

 

 

 

 

 

 

 

 

29

 

MNT3

I

Spindle servo lock status monitor signal input from the CXD2652AR (IC301)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System reset signal input from the master controller (IC501), reset signal generator (IC652) and

30

 

RESET

I

reset switch (SW503) “L”: reset

 

 

 

 

 

 

 

 

 

 

 

For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

 

 

 

 

 

 

 

 

 

 

31

 

EXTAL

O

Main system clock output terminal (10 MHz)

 

 

 

 

 

32

 

XTAL

I

Main system clock input terminal (10 MHz)

 

 

 

 

 

33

 

VSS

—

Ground terminal

 

 

 

 

 

34

 

TX

O

Sub system clock output terminal (32.768 kHz)

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

35

 

TEX

I

Sub system clock input terminal (32.768 kHz)

Not used (fixed at “L”)

 

 

 

 

 

 

 

 

 

 

 

 

36

 

AVSS

—

Ground terminal (for A/D converter)

 

 

 

 

 

 

 

 

 

 

 

 

 

37

 

AVREF

I

Reference voltage input terminal (+5V) (for A/D converter)

 

 

 

38

 

INIT

I

Initial reset signal input terminal (A/D input) (fixed at “H”)

 

 

 

39

 

TEMP

I

Temperature sensor (TH501) input terminal (A/D input)

 

 

 

40

 

ACNT

I

Select the number of load/eject aging times (A/D input)

 

 

 

 

0H – 54H (30 times), 55H – OA9H (20 times), OAAH – OFFH (10 times)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

DO-SEL

I

Select the digital output bits (A/D input)

 

 

 

 

 

 

 

 

 

 

 

42

 

EE-CS

O

Chip select signal output to the external EEPROM device Not used (open)

 

 

 

 

 

 

 

43

 

EE-CKO

O

Serial data transfer clock signal output to the external EEPROM device

Not used (open)

44

 

EE-SIO

I/O

Two way data bus with the external EEPROM device

Not used (open)

 

 

45

 

MD-SO

O

Writing serial data signal output to the CXD2652AR (IC301) and CXA2523AR (IC302)

46

 

LINKOFF

O

Unilink on/off control signal output for the SONY bus

“L”: link on, “H”: link off

 

 

 

 

 

 

 

 

 

 

 

 

44

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Sony MDX-C6500RV Eject, Nco, Dfctsel, Dpllsel, Emphsel, Lock, Reset, Extal, Vss, Avref, Do-Sel, Ee-Cs, Ee-Cko, Ee-Sio
Page 43 Page 45

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