Sony MX-E501 service manual 188,189 Not used open 190

Page 51

MZ-E501

Pin No.

Pin Name

I/O

Description

156, 157

TEST1, TEST0

I

Terminal 1, 0 for the main test

 

 

 

 

158

EVA

I

EVA/FLASH chip discrimination terminal

 

 

 

 

159

OPR LED

O

Operation LED control (Not used in this set)

160

SSB DATA

I/O

Input/output of SSB serial data

 

 

 

 

161

SSB CLK

SSB serial clock

162

MCUVSS0

Ground (for the microcomputer block)

 

 

 

 

163

OPR_LED_R_PWM

O

Operation LED (R) control PWM

164

VL PWM

PWM for the laser power supply voltage control

165

VC PWM

PWM for the system power supply voltage control

 

 

 

 

166

SPDL_AUX_PWM

O

Spindle auxiliary control PWM

167

OPR_LED_G_PWM

O

Operation LED (G) control PWM

 

 

 

 

168

NC

O

Not used (open)

 

 

 

 

169

CLK SEL

O

Not used (open)

170

OPEN CLOSE

I

Not used (open)

SW

 

 

 

 

 

 

 

171

GND SW

O

Not used (open)

172

SET CODE0

O

Set code 0

 

 

 

 

173

SET CODE1

O

Set code 1

 

 

 

 

174

SET CODE2

O

Set code 2

 

 

 

 

175

SET CODE3

O

Set code 3

 

 

 

 

176

MIFVDD1

Power supply (for the microcomputer I/F block)

177

MIFVSS1

Ground (for the microcomputer I/F block)

 

 

 

 

178

AOUT SEL

O

HP/LINE changeover signal output Not used (open)

 

 

 

 

179

SI0

I

Serial data input (CH0)

 

 

 

 

180

SO0

O

Serial data output (CH0)

 

 

 

 

181

SCK0

O

Serial clock signal output (CH0)

 

 

 

 

182

XGUM ON

I

Not used (open)

183

BEEP

O

Beep sound output

184

NC

Not used (open)

 

 

 

 

185

VD. SEL

O

Not used (open)

 

 

 

 

186

XMUTE

O

Not used (open)

 

 

 

 

187

LCD_RST_AUX

O

Not used (open)

188,189

NC

O

Not used (open)

190

X PATCH

I

Not used (connected to ground)

191

OPT DET

I

Not used (open)

192

XJACK DET

I

Not used (open)

 

 

 

 

193

XMIC DET

I

Not used (open)

 

 

 

 

194, 195

PD S0, PD S1

O

PD IC mode changeover 0, 1

196

MIFVDD2

Power supply (for the microcomputer I/F block)

 

 

 

 

197 to

MODE1 to 3

O

Not used (open)

199

 

 

 

 

 

 

 

200, 201

HD CON 1, 2

O

Not used (open)

 

 

 

 

202

NC

O

Not used (open)

203

XCS ADA

O

Not used (open)

 

 

 

 

204

XPD ADA

O

Not used (open)

205

XCS LCD

O

Not used (open)

 

 

 

 

15

Image 51
Contents MZ-E501 SpecificationsExploded Views Table of ContentsDisassembly DiagramsSection Servicing Notes Location and Function of Controls Group Section GeneralCase ASSY, Holder Assy Section DisassemblyBracket Assy Mechanism DeckOptical PICK-UP Assy LCX-4E Main BoardSection Test Mode Setting the Test ModeGeneral Manual Mode Overall Adjustment ModeHow to set the Manual mode Self-diagnostic mode SELF-DIAGNOSTIC Display ModeEIB KEY Check ModeSound Skip Check Result Display Mode Setting the Key Check modeSection Electrical Adjustments Manual Power AdjustmentsReset NV Vc PWM Duty H adjustment method Electrical offset adjustment methodOverall CD and MO adjustment method Resume clear method Overall CD and MO adjustment itemsMZ-E501 Waveforms Section DiagramsMain Board Block DiagramSemiconductor Printed Wiring Board Main Section Side aSide B Printed Wiring Board Main Section Side BOprledgh MZ-E501 2222 IC301 TA2131FL EL IC Block DiagramsIC901 XPC18A32FCR2 IC PIN Function Description MIFVSS3 OprledglXtest OprledrlDSPVSS0 AVS2 AvssAPC DSPVDD0Spcv DSPVDD2DSPVSS1 SpcuVL PWM TEST1, TEST0SSB CLK MCUVSS0TSB SLV CHK LCD STBLCD RST REC LEDMain Section Section Exploded Views5961 Mechanism SectionSection Electrical Parts List MainXPC18A32FCR2 Ver 1.1 Memo MZ-E501 Before change After change How to distinguish the sets¥ Signal path Main Board Main Board + Line Tantalums Schematic Diagram Main /3 See page 9 for IC Block Diagrams IC Block Diagrams IC901 XPC18A32FCR2 Signal C input from the optical pick-up detector IC601 CXD2671-207GA System Control AVS2 Avss DSPVDD2 188,189 Not used open 190 LCD STB 1uF 10% C102 126-246-11 IC XPC18A32FCR2 SWITCH, Tactile VOL− Ver Date Description of Revision Revision History