Sony MZ-R900 Xpd Ada, Xcs Lcd, Lcd Stb, Lcd Rst, Rec Led, LD on, Tsb Slv Chk, MCUVSS1, Cav Clv Sw

Page 40

MZ-R900

Pin No.

Pin Name

I/O

 

Description

 

 

 

 

 

 

204

XPD ADA

O

Power supply control signal output for the drive to A/D, D/A converter (IC301)

 

 

 

 

 

205

XCS LCD

O

Chip select signal output to the liquid crystal display element

 

 

 

 

 

 

 

206

LCD STB

O

Strobe signal output to the liquid crystal display element

 

 

207

LCD RST

O

Reset control signal output to the liquid crystal display element

Not used (open)

208

REC LED

O

LED ON/OFF control signal output for REC display

 

 

 

 

 

 

 

209

LD ON

O

ON/OFF control signal output terminal of the laser diode

Not used (open)

 

 

 

 

 

 

 

210

TSB SLV CHK

I

TSB slave detection signal input terminal

 

 

 

 

 

 

 

 

 

 

 

211, 212

NC

I

Not used (open)

 

 

 

 

 

 

 

 

 

 

213

MCUVSS1

Ground terminal (for the microcomputer block)

 

 

214

CAV CLV SW

O

CAV/CLV changeover control signal output

Not used (open)

 

215

XOPT CTL

O

Power supply ON/OFF control signal output for DIN PD drive

 

 

 

 

 

 

 

 

216

CS RTC

O

Chip select signal output to the clock IC

 

 

 

 

 

 

 

 

 

 

217

OFTRK

I

Off track signal input from RF amp (IC501)

 

 

 

 

 

 

 

 

 

218

NC

O

Analog muting control signal output

“H”: muting ON

Not used (open)

219

XCS NV

O

Chip select signal output to EEPROM (IC804)

 

 

 

220

XRST MTR

O

Reset control signal output to the motor driver (IC551)

 

 

DRV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

221

XRF RST

O

Reset control signal output to RF amp (IC501)

 

 

 

 

 

 

 

 

222

MCUVDD3

Power supply terminal (for the microcomputer block) (+1.5V)

 

 

 

 

 

 

223

SPDL MON

I

Spindle servo monitor signal input from the motor driver (IC551)

 

 

 

 

 

 

 

 

 

224 to

NC

I

Not used (open)

 

 

 

 

226

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

227

XHOLD SW

I

HOLD switch (S801) input terminal

“L”: hold ON, “H”: hold OFF

228

SYNC REC

I

SYNCHRO REC switch (S802) input terminal

“L”: OFF, “H”: ON

229

NC

O

Not used (open)

 

 

 

 

 

 

 

 

230

PROTECT

I

Detection input terminal of the record check claw from the protect detection switch (S803)

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

 

 

 

 

 

 

 

231

FLASHVDD

Power supply terminal (for the internal FLASH ROM) (+2.4V)

 

 

 

 

 

 

 

232

FLASHVSS

Ground terminal (for the internal FLASH ROM)

 

 

233

SLD MON

I

Sled servo monitor signal input from the motor driver (IC551)

 

234

VLON

O

Power supply control signal output for the laser diode drive to the power control (IC901)

235

SLEEP

O

System sleep control signal output to the power control (IC901)

“H”: sleep ON

 

 

 

 

236

FFCLR

O

Input latch output for the start switching to the power control (IC901)

 

 

 

 

 

237

CHG GAIN

O

Charge gain control signal output to the power control (IC601)

 

 

 

 

 

238

CHG

O

Charge ON/OFF control signal output to the power control (IC601) “H”: charge ON

239, 240

NC

O

Not used (open)

 

 

 

 

241

MIFVDD3

Power supply terminal (for the microcomputer I/F block) (+2.3V)

 

242

MIFVSS2

Ground terminal (for the microcomputer I/F block)

 

 

 

 

 

 

 

 

243

TEST2

O

Input terminal for the main test (normally open)

 

 

 

 

 

 

 

 

 

 

244

NC

Not used (open)

 

 

 

 

 

 

 

 

 

 

 

 

38

Image 40
Contents Battery life1 Specifications927-991-13 Table of Contents DisassemblyDiagrams Exploded ViewsFlexible Circuit Board Repairing Section Servicing NotesSection General Looking at controlsDisassembly Flow Section DisassemblyPanel ASSY, Bottom Panel ASSY, Upper Section LCD MODULE, Panel ASSY, UpperCase ASSY, BATTERY, Main Board Main Board AssySTRIP, Ornamental MD Mechanism Deck MT-MZR900-171, Chassis ASSY, SETService ASSY, OP LCX-4R Holder Assy Motor Flexible BoardMOTOR, DC Sled M602 Section Test Mode Setting Method of Test ModeOperation in Setting the Test Mode Releasing the Test ModeConfiguration of Test Mode Manual ModeTransition method in Manual Mode A n u a l011 C 6 8 S 0 F F J 0011 0 6 3 B 0 0XX 1 0 0 0Reset the error display code Description of Error Indication CodesSetting method of Reset the Error Display Code Description of Indication History000 P * * R 000000 FF RPLAYReset ResNV CCResOK? 021 Res871 V5num 872 V5datAssy00 762 Vc1PWMADJ OK SetTmpHrefPw WritPwAssy Assy11Ofst OfstOKAdjustment Method of Overall CD and MO Adjustment Mode Overall CD and MO adjustment items000 *** NG CD OKResume CC 043 ResResClr PatClr CC023 0D6000 023 0D6008023 0D6100 023 0D61A1023 0D5DAA 023 0D5E04023 0D6120 023 0D6400023 0D6909 023 0D6C00023 0D6CF6 023 0D6D00023 0D751C 023 0D7600023 0D7603 023 0D7800Block Diagram Servo Section DiagramsSection Block Diagram Audio Section Block Diagram KEY CONTROL/DISPLAY/POWER Supply Section Waveforms Vp-pPrinted Wiring Boards Semiconductor LocationMZ-R900 IC Block Diagrams IC301 AK4562VNS-LXPC18A22FCR2 IC PIN Function Description Pause KEY MIC SenseXtest MIFVSS3 Adio AVD2 AVS2 AdrbDSPVDD2 DSPVSS1Spcu SpcvTEST1, TEST0 EVASSB Data SSB CLKXPD ADA XCS LCDLCD STB LCD RSTSection Exploded Views Panel SectionChassis Section MT-MZR900-171 Not suppliedMD Mechanism Deck Section MT-MZR900-171 Main Electrical Parts List SemiconductorsConnector MainXPC18A22FCR2 RES-CHIP CASE, Battery Charge Except JEW Memo Revision History