Sony MZ-R91 Sync REC, Pause KEY, Sense, Wrpwr, Xcs Dsp, Cs Rtc, SI0, SO0, SCK0, Beep, Xcs Lcd

Page 34

MAIN BOARD IC801 CXR701080-013GA (MASTER CONTROLLER)

Pin No.

 

Pin Name

I/O

Description

 

 

 

 

 

 

 

1

 

SYNC REC

I

SYNCHRO REC switch (S801) input terminal

“L”: off, “H”: on

 

 

 

 

 

 

2

 

OFTRK

I

Off track signal input from the CXD2660GA (IC502)

 

 

 

 

 

 

3

 

PROTECT

I

Rec-proof claw detect input from the protect detect switch (S806)

 

“L”: recording possible , “H”: protect

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

PAUSE KEY

I

Set pause key input terminal

 

 

 

 

 

 

 

5

 

 

TX

O

Recording data output enable signal output to the CXD2660GA (IC502)

 

 

Writing data transmission timing output

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

SENSE

I

Internal status (SENSE) input from the CXD2660GA (IC502)

 

 

 

 

 

 

7

 

WRPWR

O

Laser power select signal output to the CXD2660GA (IC502)

 

“L”: playback mode , “H”: recording mode

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

XLAT

O

Serial data latch pulse output to the CXD2660GA (IC502)

 

 

 

 

 

 

9

 

XCS DSP

O

Chip select signal output to the CXD2660GA (IC502)

 

 

 

 

 

 

10

 

CS RTC

O

Chip select signal output to the real time clock (IC804)

 

 

 

 

 

 

11

 

 

SI0

I

Serial data input from the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM

 

 

(IC802), real time clock (IC804) and switch & liquid crystal display module unit

 

 

 

 

 

 

 

 

 

 

 

12

 

SO0

O

Serial data output to the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM (IC802),

 

real time clock (IC804) and switch & liquid crystal display module unit

 

 

 

 

 

 

 

 

 

 

 

13

 

SCK0

O

Serial clock signal output to the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM

 

(IC802), real time clock (IC804) and switch & liquid crystal display module unit

 

 

 

 

 

 

 

 

 

 

 

14

 

XGUM ON

I

Rechargeable battery pack detection switch (S901) input terminal

 

“L”: rechargeable battery pack in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

VSS

Ground terminal

 

 

 

 

 

 

 

 

16

 

VDD

Power supply terminal (+2.4V)

 

 

 

 

 

 

 

 

17

 

XOUT

O

Not used (open)

 

 

 

 

 

 

 

 

18

 

BEEP

O

Beep sound control signal input terminal

 

 

 

 

 

 

 

19

 

RMC DTCK

I/O

TSB serial communication data input/output terminal for remote commander with headphone

 

 

 

 

 

 

20

 

XCS LCD

O

Chip select signal output to the liquid crystal display

 

 

 

 

 

 

 

21

 

LCD STB

O

Strobe signal output to the liquid crystal display

 

 

 

 

 

 

 

22

 

LCD RST

O

Reset control signal output to the liquid crystal display

 

 

 

 

 

 

23

 

XHP STBY

O

Standby on/off control signal output to the line/headphone amplifier (IC303)

 

“L”: standby mode, “H”: amplifier on

 

 

 

 

 

 

 

 

 

 

 

 

24

 

CLV U

O

Spindle servo (U) drive signal output to the MPC17A56FTAF (IC601)

 

 

 

 

 

25

 

CLV V

O

Spindle servo (V) drive signal output to the MPC17A56FTAF (IC601)

 

 

 

 

 

26

 

CLV W

O

Spindle servo (W) drive signal output to the MPC17A56FTAF (IC601)

 

 

 

 

 

27

 

MODE1

O

Power supply control signal output for over write head drive to the MPC18A20MTAEL (IC603)

 

 

 

 

 

28

 

MODE2

O

Power supply control signal output for over write head drive to the MPC18A20MTAEL (IC603)

 

 

 

 

 

29

 

MODE3

O

Power supply control signal output terminal for over write head drive

 

 

 

 

 

30

 

HD CON 1

O

Over write head control signal output to the MPC17A17DTB (IC602)

 

 

 

 

 

31

 

HD CON 2

O

Over write head control signal output to the MPC17A17DTB (IC602)

 

 

 

 

 

 

32

 

XREC MODE

O

Not used (open)

 

 

 

 

 

 

 

33

 

LD ON

O

Laser diode on/off control signal output terminal

“L”: laser off, “H”: laser on Not used (open)

 

 

 

 

 

 

34

 

TSB SLV ON

I

TSB slave detect signal input terminal

 

 

 

 

 

 

35

 

SLD MON 1

I

Sled servo timing signal input from the MPC17A56FTA (IC601)

 

 

 

 

 

36

 

PD S0

O

PD IC mode switching signal output to the optical pick-up block

37

 

REG CTL CLK

O

Synchronizing external clock signal output terminal Not used (open)

 

 

 

 

 

38

 

PD S1

O

PD IC mode switching signal output to the optical pick-up block

 

 

 

 

 

 

 

– 50 –

Image 34
Contents NEW SpecificationsLCX-2R Exploded Views Electrical Parts List Table of ContentsDiagrams Flexible Circuit Board RepairingSection Servicing Notes EepromGeneral Headphones with a remote control RM-MZ2SSection Location of ControlsPanel ASSY, Bottom Section DisassemblyUpper Panel Section MZ-R90 LCD MODULE, BUTTON, CONTROL, Service ASSY, Upper PanelMZ-R91 Main BOARD, Case ASSY, Battery Belt ASSY, OrnamentalService ASSY, OP Chassis ASSY, SET, MD Mechanism Deck MT-MZR90-165Holder Assy Motor Flexible BoardMOTOR, DC Sled M602 Operation in Setting the Test Mode Test ModeSetting Method of Test Mode Releasing the Test ModeManual Mode Configuration of Test ModeA n u a l 011 0 6 3 B 0 Overall Adjustment Mode011 0 F F J 0 011 0 5 9 a 0T a t Sound Skip Check Result Display ModeSetting method of Sound Skip Check Result Display Mode T r ySelf-Diagnosis Display Mode 000 1 s tDescription of Indication History Description of Error Indication CodesClearing Self-Diagnosis Data and Total Recording Time RECKey Check Mode Key IndicationE s O K ? Section Electrical AdjustmentsE s N E sR h V c l C l P W MC h P W M R h V c hD R U N E t T m pS S Y D O KE s u m e Laser Power CheckO O K E s C l rSignal Path Section DiagramsBlock Diagram Servo Section REC DigitalBlock Diagram KEY CONTROL/DISPLAY/POWER Supply Section Block Diagram A/D, D/A CONVERTER, Audio SectionSignal Path Play Analog OUT REC Analog REC Digital Semiconductor Location Printed Wiring BoardJEW MZ-R90/R91 IC501 SN761056ADBT IC Block Diagrams IC301Waveforms IC304, 305 RN5RZ25AA-TRIC601 IC602IC605 XC6367B103MR IC803 XC6383C301MR IC603IC902 IC804 RV5C348A-E2 IC901IC PIN Function Description Sclk VDC0Swdt VSC0Xras VDIO1VSIO1 IxoeLddr XlrfApcref VDC4Sense Sync RECPause KEY WrpwrTSB Edge FfclrSleep GND SWSET KEY Half LockRMC KEY REC KEYPanel Section MZ-R90 Section Exploded ViewsHK, CH, JEW Panel Section MZ-R91 Chassis section Not supplied101 105 113 112 114 106 110 107 111 109 Chassis Section102 103 104 108 109 MD-MECHANISM Deck Section Electrical Parts List MainCeramic Chip 5PF CAP, ChipCXD2660GA ConnectorFILTER, Chip EMI Common Mode IC MPC17A56FTAEBFET FET HAT2051T-ELFET HAT2050T-EL Transistor ZDT6718TAComposition Circuit Block SwitchOPEN/CLOSE Detect Thermistor TH901 1-803-795-21 THERMISTOR, Positive Vibrator SWITCH, Slide HoldSWITCH, Slide Synchro REC MiscellaneousMZ-R90/R91 Subject Addition of Korean Model CorrectionExploded Views Electrical Parts ListHong Kong Model Korean Model 151 176 @ 112 105 106 #114Indicates changed portion.EXPLODED Views IC MPC17A56FTA IC MPC18A31FTAEB