Sony MDX-C6500RX Eject, Dfctsel, Dpllsel, Emphsel, Lock, Reset, Extal, Vss, Avref, Do-Sel, Ee-Cs

Page 44

•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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Contents Specifications NEWTable of Contents General Electrical AdjustmentsDiagrams DisassemblySection General Location of controlsPage Page Page Page Page Mechanism Deck MG-164NZ-138 Section DisassemblySUB Panel ASS’Y Servo Board Main BoardMD Cover ASS’Y Heat SinkFloat Block LO Motor ASS’Y Loading M903Lever LE ASS’Y Holder ASS’YChucking ARM ASS’Y Optical PICK-UP KMS-241C/J1NPSL Motor ASS’Y Sled M902, SP Motor ASS’Y Spindle M901 Tuner Section Section Electrical AdjustmentsMD Section MD Play Section DiagramsSignal Path Block Diagram Tuner Section MW/LW BUS AudioBlock Diagram BUS CONTROL/POWER Supply Section Circuit Boards Location Semiconductor Location Ref. No Location IC307 Q402 Q403 MDX-C6400R/C6500R/C6500RX MDX-C6400R/C6500R/C6500RX Semiconductor Location RL+ FL+ FR+ RR+ ATT 13 5 Remamp REM ACC MDX-C6400R/C6500R/C6500RX Schematic Diagram Main Board 2/3 See page 31 for Waveforms MDX-C6400R/C6500R/C6500RX Main Board MDX-C6400R/C6500R/C6500RX Schematic Diagram SUB Board Ref. No Location D901 D902 D903 D904 D951 D952 IC901 Schematic Diagram KEY Board See page 31 for Waveform CXA2523AR IC305 BA6287F Main Board IC51 SAA6588T/V2-118 TDA7402TR IC PIN Function Description Mvci AsyoAsyi AvddFrdr FS4Srdr SfdrXstby VrefVCC WbladjReset EjectDfctsel DpllselUnireq UnisiUniso EJT-KEYBuson IllonE2P SIO E2P CKOAvrh AvrlKEYIN1 RCIN0DIM SEL ACCRstx PW on TU1 Section Exploded ViewsGeneral Section 60 1-694-660-11 Conductive BOARD, Connection Front Panel Section54 3-041-003-01 Button LIST/ENTER DSPL. LIST. Enter Mechanism Deck MG-164NZ-138 155 152 A-3326-034-A Sensor BOARD, CompleteSection Electrical Parts List KEYAmber ResistorMetal Chip RES, ChipKEY Main CN701 1-580-907-31 PLUG, Connector BUS Control MylarDouble Layer RD6.8ESB2TDA7402TR Jack Remote Resistor JC1Short JC2 Short JC4Carbon Main Sensor Servo Ferrite Bead Ferrite Bead Inductor ChipCXD2652AR CXA2523ARServo SUB Parts for Installation and Connection Ver 1.1Revision History

MDX-C6500R, MDX-C6500RX specifications

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