PSR-640/640 Service Manual

PSR-640/640 Service Manual

SERVICE MANUAL

PSR-740

PK 001627

PSR-740 19990901-160000

PSR-640 19990901-120000

PSR-640

CONTENTS

SPECIFICATIONS

PANEL LAYOUT

PSR-740 BLOCK DIAGRAM

PSR-640 BLOCK DIAGRAM

CIRCUIT BOARD LAYOUT

DISASSEMBLY PROCEDURE

LSI PIN DESCRIPTION

IC BLOCK DIAGRAM

.............................................. 3/4

...................................... 5

.... 6

.... 7

................. 8

............................. 10

............................... 14

.................................. 19

CIRCUIT BOARDS

TEST PROGRAM

DATA INITIALIZATION

ALERT MESSAGE LIST

........................................ 20

............................. 25/27

.......................................... 29

................... 30/32

MIDI DATA FORMAT ................. 34

PSR-740 MIDI IMPLEMENTATION CHART ......................... 49

PSR-640 MIDI IMPLEMENTATION CHART ......................... 50

PARTS LIST

OVERALL CIRCUIT DIAGRAM

HAMAMATSU, JAPAN

1.82K-9201 Printed in Japan ‘99.08

6

PSR-740/PSR-640

PSR-740 BLOCK DIAGRAM

PN

IC29

17-19 21

5

7

IC25

IC33

13

14

27

28

29

IC24

81

101

135

136

IC23

134 102,103

77

76,222,225

IC6

108

120

114

94,96

5

43

48

114

123

IC4

122

IC15

TA2

IC19

TA1

IC18

11

IC11

(1)

11 13 32

IC20

11

IC21

IC16

IC17

19

17

10 13 14 37

IC12

(2)

11 13 32

IC9

22 24 29

IC13

15

14

13

12

4

11

IC14

IC5

6

4 39

1 3 5 7 20 21 40

34

35

234

232

231

IC28

IC14

IC10

IC14

14 29 28 13

IC7

(1)

14 29 28 13

IC8

(2)

IC15

IC310

86,98,99

IC22

8

IC32

IC2

IC320

IC210,220

33

IC510

IC3 IC1

IC30

IC26

IC31

IC27

IC410

IC610

IC710

IC1

IC2

PC1

28CA1-8814457

PSR-640 BLOCK DIAGRAM

28CA1-8813472

122

TR501-505

IC510

IC530

IC500

11

IC420

IC430

11

IC410

19

IC400

17

10 13 14 37

6

IC800

4 39

1 3 5 7 20 21 40

IC1

IC

220

IC260

IC210

IC190

108

194

196

12

11

74,73

6

43,44,101

IC100

43

48

53

114

IC200

150

151

152

10

9

158

159

163

164

IC310

(1)

11 13 32

IC320

(2)

11 13 32

IC300

22 24 29

IC330

13 14 31 30

IC350

4

15

14

13

12

11

IC360

IC360

IC290

IC370

IC610

IC900

IC310

IC210,220

IC600

25

IC610

IC320

IC410

IC610

IC710

PC1

IC510

PSR-740/PSR-640

7

PSR-740/PSR-640

LSI PIN DESCRIPTION

PIN

NO.

NAME I/O

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

/WRHH/PA23 O

DACK0/PE14 O

/WRHL/PA22 O

/CASHH/PA21 I/O

DACK1/PE15 O

VSS I

A0

A1

O

O

A2

A3

A4

VCC

A5

VSS

A6

A7

O

I

O

O

O

O

O

I

21

22

23

24

17

18

19

20

A8

A9

A10

A11

A12

A13

A14

A15

25

26

27

28

A16

VCC

A17

VSS

29 /CASHL/PA20 I/O

30 PA19 I/O

31

32

/RAS/PB2

/CASL/PB3

O

O

O

I

O

I

O

O

O

O

O

O

O

O

69

70

71

72

65

66

67

68

45

46

47

48

41

42

43

44

37

38

39

40

33

34

35

36

PA18

/CASH/PB4

VSS

RDWR/PB5

A18

A19

A20

VCC

A21

VSS

/RD

/WDTOVF

D31

D30

/WRH

/WRL

61

62

63

64

57

58

59

60

53

54

55

56

49

50

/CS1

/CS0

O

O

51

/IRQ3/PA9/TCLKD

I/O

52

/IRQ2/PA8/TCKLC

I/O

/CS3

/CS2

VSS

D29

O

O

I

I/O

D28

D27

D26

D25

VSS

D24

VCC

D23

I/O

I/O

I/O

I/O

I

I/O

I

I/O

D22

D21

D20

D19

D18

D17

VSS

D16

I/O

I/O

I/O

I/O

I/O

I/O

I

I/O

I/O

I/O

O

O

O

I

O

O

O

O

O

I

I/O

O

I

O

SH-7043A (XW485100) CPU

SH-7043 (XW180100) CPU

FUNCTION

PIN

NO.

NAME I/O

HH write/Port A

DMA transfer strobe/Port E

HL write/Port A

HH Column address strobe/Port A

DMA transfer strobe/Port E

Ground

Address bus

Power supply

Address bus

Ground

85

86

87

88

81

82

83

84

77

78

79

80

73

74

75

76

D9

D8

D7

D6

VCC

D5

VSS

D4

D15

D14

D13

D12

VCC

D11

VSS

D10

Address bus

93

94

95

96

89

90

91

92

D3

D2

D1

D0

VSS

XTAL

MD3

EXTAL

Power supply

Address bus

Ground

HL Column address strobe/Port A

Port A

Row address strobe/Port B

97

98

99

100

101

102

103

Column address strobe (low) /Port B 104

Port A 105

Column address strobe (high) /Port B 106

Ground

DRAM read/write /Port B

Address bus

107

108

MD2

NMI

VCC/FW

PA16

PA17

MD1

MD0

PLLVCC

PLLCAP

PLLVSS

CK/PA15

/RES

I

I

-

I/O

I/O

I

I

I

I

I/O

I

I

109 DREQ0/PE0 I/O

110 TIOC0B/PE1 I/O

Power supply

Address bus

Ground

Read

111 /DREQ1/PE2 I/O

112 VCC I

113

114

PE3

PE4

I/O

I/O

Watch dog timer overflow

Data bus

Data bus

High write

115

116

117

118

PE5

PE6

VSS

AN0 /PF0

I/O

I/O

I

I

Low write

Chip select

Chip select

Interrupt request/Port A/clock

119

120

121

122

AN1/ PF1

AN2 /PF2

AN3 /PF3

AN4 /PF4 I

I

I

I

Interrupt request/Port A/clock

Chip select

Chip select

Ground

123

124

125

126

AN5/PF5

AVSS

AN6/PF6

AN7/PF7 I

I

I

I

Data bus

127

128

129

130

AVREF

AVCC

VSS

RxDO I

I

I

I

I

I

I

I

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I

I/O

I

I/O

I/O

I/O

I/O

I/O

I

I/O

I

I/O

Ground

Data bus

Power supply

Data bus

Ground

Data bus

139

140

141

142

143

144

131 TxDO

132 /IRQ0/SCK0

133

134

RxD1

TxD1/PA4

135 VCC

136 /IRQ1/SCK1

137

138

PE7

PE8

PE9

PE10

VSS

PE11

PE12

PE13

I/O

I/O

I

I/O

I/O

I/O

O

I

I

I/O

I

I

I/O

I/O

Power supply

Data bus

Ground

Data bus

Power supply

Data bus

Ground

Data bus

Ground

Crystal oscillator

Mode select

Crystal oscillator

Mode select

Non-maskable interrupt

Power supply

Port A

Port A

Mode select

Mode select

PLL Power supply

PLL capacitor

PLL Ground

Clock/Port A

Reset

DMA transfer request/Port E

MTU input capture/output compare (ch 0)/Port E

DMA transfer request/Port E

Power supply

Port E

Ground

Port E

FUNCTION

Data bus

Ground

Analog input/Port F

Analog ground

Analog input/ Port F

Analog input /Port F

Analog reference voltage

Analog power supply

Ground

Receive data

Transmit data

Interrupt request/Serial clock

Receive data

SCI/Port A

Power supply

Interrupt request/Serial clock

Port E

14

PSR-740/PSR-640

HG73C205AFD (XU947C00) SWX00B TONE GENERATOR

NAME I/O

SMA16

VCC49

GND50

SMA1

SMA15

SMA2

SMA14

SMA3

SMA13

SMA4

SMA12

SMA5

GND60

VCC61

SMA11

SMA6

SMA10

SMA7

SMA9

SMA17

SMA8

SMD6

SMD1

SMD14

VCC35

GND36

SMD8

SMD7

SMD0

SMD15

SOE

SWE

SRAS

SCAS

REFRESH

CS0

SMA0

SMA18

SMA19

SMA20

SMA21

SMA22

SMA23

CMA20

CMA19

VCC77

GND78

CMA18

CMA17

CMA5

CMA6

CMA4

CMA7

ICN

RFCLKI

TM2

AVDD_PLL

AVSS_PLL

MODE0

VCC7

GND8

XIN

XOUT

MODE1

TEST0

TESTON

AN0-P40

AN1-P41

AN2-P42

AN3-P43

AVDD_AN

AVSS_AN

TXD0

TXD1

EXCLK

SMD11

SMD4

SMD3

SMD12

SMD10

SMD5

SMD2

SMD13

SMD9

PIN

NO.

60

61

62

63

56

57

58

59

64

65

66

67

68

52

53

54

55

48

49

50

51

44

45

46

47

40

41

42

43

36

37

38

39

32

33

34

35

75

76

77

78

79

80

81

82

83

84

69

70

71

72

73

74

28

29

30

31

24

25

26

27

20

21

22

23

16

17

18

19

12

13

14

15

8

9

10

11

6

7

4

5

1

2

3

I

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

I

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

I

I

I

I

I

I

I

O

I

I

I

I

FUNCTION

Initial clear

PLL Clock

PLL Control

Power supply

Ground

SWX dual mode

Power supply

Ground crystal oscillator crystal oscillator

SWX separate mode

TEST pin

TEST pin

A/D converter

A/D converter

A/D converter

A/D converter

Power supply

Ground for MIDI or TO-HOST for MIDI

Crystal oscillator

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus

Power supply

Ground

Wave memory data bus

Wave memory data bus

Wave memory data bus

Wave memory data bus read signal write signal

RAS signal

CAS signal

REFRESH signal

CS signal

Memory address bus

Memory address bus

Power supply

Ground

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Ground

Power supply

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Memory address bus

Program address bus

Program address bus

Power supply

Ground

Program address bus

Program address bus

Program address bus

Program address bus

Program address bus

Program address bus

NAME I/O

I/O

I/O

I/O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I

I

I

I

I

I

I

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

I

I

I

O

O

O

O

O

O

O

O

O

O

O

O

O

I

I

I

PDT8

VCC133

GND134

PDT7

PDT6

PDT5

PDT4

PDT3

PDT2

PDT1

PDT0

VCA143

GND144

PAD2

PAD1

PAD0

VCC148

GND149

PCS

PWR

PRD

CMD13

CMD2

CMD14

VCC119

GND115

CMD1

CMD15

CMD0

CMA21

PDT15

PDT14

PDT13

PDT12

PDT11

PDT10

PDT9

RXD0

RXD1

SCLKI

ADIN

ADLR

DO0

DO1

SYSCLK

VCC161

GND162

WCLK

QCLK

BCLK

SYI

IRQ0

NMI

GND100

CWE

CMA16

CMA15

CMA14

CMA13

CMD8

CMD7

CMD9

CMD6

CMD10

CMD5

CMD11

CMD4

CMD12

CMD3

CMA3

CMA8

CMA2

CRD

CMA1

CUB

VCC91

GHND92

CS1

CMA0

CLB

CMA12

CMA11

CMA10

CMA9

PIN

NO.

140

141

142

143

144

145

146

147

132

133

134

135

136

137

138

139

148

149

150

151

152

124

125

126

127

128

129

130

131

116

117

118

119

120

121

122

123

159

160

161

162

163

164

165

166

167

168

153

154

155

156

157

158

108

109

110

111

112

113

114

115

100

101

102

103

104

105

106

107

96

97

98

99

92

93

94

95

85

86

87

88

89

90

91

FUNCTION

Program address bus

Program address bus

Program address bus read signal

Program address bus high byte effective signal

Power supply

Ground

CS signal

Program address bus low byte effective signal

Program address bus

Ground write signal

Program address bus

Program address bus

Program address bus

Program address bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program memory Data bus

Power supply

Ground

Program memory Data bus

Program memory Data bus

Program memory Data bus

Program address bus

SWX access data bus

Power supply

Ground

SWX access data bus

Power supply

Ground

SWX access address bus

Power supply

Ground

Chip select write enable read enable for Midi or TO-HOST for Midi or Key scan

EXT Clock

A/D converter

A/D converter LR clock

DAC

DAC

1/2 clock

Power supply

Ground for DAC LR clock

1/12 clock

IIS-DAC clock

Synch signal

Interrupt request

Interrupt request

15

PSR-740/PSR-640

16

TC203C760HF-002 (XS725A00)

NAME

VDDS

ADLR

MELI0

MELI1

MELI2

MELI3

MELI4

MELI5

MELI6

MELI7

VSS

DAC0

DAC1

WCLK

MELO0

MELO1

MELO2

MELO3

MELO4

MELO5

MELO6

MELO7

SYSL3

SYSL4

SYSL5

SYSL6

SYSL7

KONI0

KONI1

VDDS

VSS

KONI2

KONI3

SYSH5

SYSH6

SYSH7

KONO0

KONO1

KONO2

KONO3

VSS

SYSL0

SYSL1

SYSL2

VSS

CD15

/CS

/WR

/RD

VDDS

SYSH0

SYSH1

SYSH2

SYSH3

SYSH4

CD5

CD6

CD7

CD8

CD9

CD10

CD11

CD12

CD13

CD14

VDD

CA7

CA8

CA9

CA10

CA11

VSS

CD0

CD1

CD2

CD3

CD4

Vss

CA0

CA1

CA2

CA3

CA4

CA5

CA6

RD0

VSS

RD17

RD16

RD15

RD14

RD13

RD12

RD11

RD10

RD9

RD8

VDDS

RA0

/RRAS

/RWE

VSS

RD7

RD6

RD5

RD4

RD3

RD2

RD1

/RCAS

RA8

RA7

RA6

VDD

VSS

RA5

RA4

RA3

RA2

RA1

PIN

NO.

80

81

82

83

76

77

78

79

84

85

86

69

70

71

72

65

66

67

68

73

74

75

58

59

60

61

54

55

56

57

62

63

64

47

48

49

50

43

44

45

46

51

52

53

36

37

38

39

32

33

34

35

40

41

42

25

26

27

28

21

22

23

24

29

30

31

15

16

17

18

19

20

11

12

13

14

9

10

7

8

5

6

3

4

1

2

98

99

100

101

102

103

104

105

106

107

108

91

92

93

94

87

88

89

90

95

96

97

109

110

111

112

113

114

115

116

117

118

119

120

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I

I

I

I

I

I

I

I

I

I

I

I

O

O

O

O

O

O

I

I

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I

I

I

I

I

I

I

I

I

I

O

I

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

I/O

I

I

I

O

O

O

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

Address bus internal register

Data bus of internal register

Chip select

Write strobe

Read strobe

(Power supply)

(Ground)

NSYS/LNSYS upper 16 bits

Key on data

ADC word clock

MEL wave data input

FUNCTION

(Ground)

NSYS input/LNSYS output lower 8 bits

Key on data

DAC output

DAC0/DAC1 word clock

(Power supply)

(Ground)

MEL wave data output

(Ground)

DRAM column address strobe

DRAM address bus

(Power supply)

(Ground)

DRAM row address strobe

DARM write enable

(Ground)

DRAM data bus

(Ground)

(Power supply)

(Ground)

(Power supply)

(Ground)

(Power supply)

I

I

O

I

O

I

I

I

I

I

I

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

I/O

O

O

O

O

O

O

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

NAME

LMD11

LMD12

LMD13

LMD14

LMD15

VSS

LMA0

LMA1

LMA2

LMA3

LMA4

LMD2

LMD3

LMD4

LMD5

LMD6

LMD7

VDDS

VSS

LMD8

LMD9

LMD10

HMA11

HMA12

HMA13

HMA14

HMA15

HMA16

HMA17

HMA18

HMA19

HMA20

HMA21

HMA22

HMA23

HMA24

VSS

/MRAS

/MCAS

/MOE

/MWE

VSS

LMD0

LMD1

VSS

HMD0

HMD1

HMD2

HMD3

HMD4

HMD5

HMD6

HMD7

HMD8

HMD9

HMD10

HMD11

HMD12

HMD13

HMD14

HMD15

VSS

HMA0

HMA1

HMA2

HMA3

HMA4

HMA5

HMA6

HMA7

HMA8

HMA9

HMA10

VSS

VDD

LMA24

VSS

SYO

SYOD

QCLK

HCLK

CK256

SYSCLK

VDDS

SYI

MCLKI

MCLKO

VDD

XIN

XOUT

VSS

/IC

CHIP2

SLAVE

/TESTO

/ACI

DCTEST

VDDS

LMA15

LMA16

LMA17

VDD

VSS

LMA18

LMA19

LMA20

LMA21

LMA22

LMA23

LMA5

LMA6

LMA7

LMA8

LMA9

LMA10

LMA11

VSS

LMA12

LMA13

LMA14

PIN

NO.

196

197

198

199

200

201

202

203

204

205

206

185

186

187

188

189

190

191

192

193

194

195

174

175

176

177

178

179

180

181

182

183

184

163

164

165

166

167

168

169

170

171

172

173

152

153

154

155

156

157

158

159

160

161

162

141

142

143

144

145

146

147

148

149

150

151

131

132

133

134

135

136

137

138

139

140

121

122

123

124

125

126

127

128

129

130

218

219

220

221

222

223

224

225

226

227

228

207

208

209

210

211

212

213

214

215

216

217

229

230

231

232

233

234

235

236

237

238

239

240

FUNCTION

(Ground)

Wave memory data bus (Upper data memory)

(Ground)

(Ground)

(Power supply)

Wave memory address bus (Upper 16 bits)

(Ground)

RAS when DRAM(s) is connected to wave memory

CAS when DRAM(s) is connected to wave memory

Wave memory output enable

Wave memory write enable

(Ground)

Wave memory data bus (Lower data memory)

(Power supply)

(Ground)

(Ground)

(Ground)

Wave memory address bus (Lower data memory)

(Power supply)

(Ground)

Sync. signal for master clock

(Ground)

Sync. signal for HCLK/QCLK

1/12 master clock (64 Fs)

1/6 master clock (128 Fs)

1/3 master clock (256 Fs)

1/2 master clock (384 Fs)

(Power supply)

Sync. clock

Master clock input

Master clock output

(Power supply)

Crystal osc. input

Crystal osc. output

(Ground)

Initial clear

2 chips mode enable

Master/Slave select when 2 chips mode

Test pin

(Power supply)

PSR-740/PSR-640

YSS236-F (XT013A00) VOP3

PIN

NO.

70

71

72

73

74

75

76

77

78

79

80

63

64

65

66

67

68

69

57

58

59

60

61

62

53

54

55

56

40

41

42

43

44

45

36

37

38

39

46

47

48

49

50

51

52

16

17

18

19

20

21

12

13

14

15

9

10

11

7

8

5

6

1

2

3

4

29

30

31

32

33

34

35

22

23

24

25

26

27

28

NAME

VDD

VSS

WD19

WD18

WD17

WD16

WD15

WD14

VDD

VSS

WD13

WD12

WD11

WD10

WA02

VDD

VSS

WA01

WA00

WEN

OEN

RASN

CASN

CEN

VSS

WA17

WA16

WA15

WA14

WA13

WA12

WA11

WA10

VDD

VSS

WA09

WA08

WA07

WA06

WA05

WA04

WA03

WD09

WD08

WD07

VDD

VSS

WD06

WD05

WD04

WD03

WD02

WD01

WD00

VDD

VSS

TST2

TST1

TST0

SI1

SI0

DB1

DB0

VDD

VSS

ODFM

OFS3

OFS2

OFS1

OFS0

MS

LRCLK

SI7

SI6

VDD

VSS

SI5

SI4

SI3

SI2

I/O

I

I

I

I

I

I

I

I

I

I

I

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

I

I

I

I

I

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

Power supply

External memory address bus

Ground

Power supply

Test output

Memory select

LR clock for ADC

Serial input

Ground

Power supply

Serial input

FUNCTION

External memory address bus

Ground

Power supply

External memory address bus

External memory control (WEN)

External memory control (OEN)

External memory control (RASN)

External memory control (CASN)

External memory control (CEN)

Ground

Power supply

External memory data bus

Ground

Power supply

External memory data bus

Ground

Power supply

External memory data bus

Ground

Power supply

Output bit type select for DAC

Ground

Power supply

Output mode select for DAC

Serial output format select

PIN

NO.

150

151

152

153

154

155

156

143

144

145

146

147

148

149

157

158

159

160

133

134

135

136

137

138

139

140

141

142

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

96

97

98

99

100

101

92

93

94

95

85

86

87

88

81

82

83

84

89

90

91

109

110

111

112

113

114

115

102

103

104

105

106

107

108

NAME I/O

CD07

CD06

CD05

VDD

VSS

CD04

CD03

CD02

CD01

CD00

VDD

VDD(PLL)

CPO

CPIN

REF

VSS(PLL)

(NC)

VDD

VSS

TSTCS

CA6

CA5

CA4

CA3

CA2

VDD

VSS

CA1

CA0

CSN

RDN

WRN

BTYP

VDD

VSS

CD15

CD14

CD13

CD12

CD11

VDD

VSS

CD10

CD09

CD08

VDD

VSS

MICN

CLKIN

SYWIN

SYW

SYWD

VDD

VSS

CLKO

WCLK

HCLK

QCLK

TSTCI

VDD

VSS

(NC)

SO7

SO6

SO5

VDD

VSS

SO4

SO3

SO2

SO1

SO0

WDCK

SWPKON

IRQN

VDD

VSS

XTAL_I

XTAL_O

MCLK

O

O

O

O

I

I

I

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

I

O

O

I

I

O

O

O

O

I

I

I

I

I

I

I

I

I

I

I

I

Serial output

Ground

Power supply

FUNCTION

Serial output

Data enable for DAC

SWP00 format key on output

EG interrupt

Ground

Power supply

Quartz crystal terminal

Quartz crystal terminal

Oscillate clock output

Ground

Power supply

Initial clear

Master clock input

Sync.signal input

Sync.signal output

Sync.signal output

Ground

Power supply

For test (512 fs output)

2 times sync.clock output (256 fs)

4 times sync.clock output (128 fs)

8 times sync.clock output (64 fs)

PLL test input

Ground

Power supply

PLL control output

PLL control input

PLL control intput

Ground

Power supply

PLL test input

CPU address bus

Ground

Power supply

CPU address bus

Lo/Hi select in 8 bits write

Chip select

Register read

Register write

Data bus type select

Ground

Power supply

CPU data bus

Ground

Power supply

CPU data bus

Ground

Power supply

CPU data bus

Ground

17

PSR-740/PSR-640

18

HD63B05V0F073P (XR951A00) CPU

PIN

NO.

9

10

11

12

13

14

15

16

17

18

19

20

7

8

5

6

3

4

1

2

NAME

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I

I

I

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

A2

A1

A0

B0

B1

B2

B3

B4

/RES

/INT

NUM

A7

A6

A5

A4

A3

B5

B6

B7

VSS

I/O

Reset

Interrupt request

Non-maskable interrupt

Port A

Port B

Ground

FUNCTION

PIN

NO.

29

30

31

32

33

34

35

36

37

38

39

40

25

26

27

28

21

22

23

24

NAME I/O

D0

D1

D2

D3/TX

D4/RX

D5//CK

D6//INT2

/STBY

C3

C2

C1

C0

C7

C6

C5

C4

TIMER

XTAL

EXTAL

VCC

I/O

I/O

I/O

O

I

O

I

I

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I

O

I

FUNCTION

Port C

Port D

Timer

Clock

(Serial data output)

(Serial data input)

(Clock for serial operation)

(Interrupt request 2)

(Standby mode signal)

Power supply

AK5351-VF-E2 (XV510A00) ADC (Analog to Digital Converter)

PIN

NO.

8

9

10

11

12

6

7

4

5

1

2

3

NAME

AINR+

AINR-

VREF

VA

AGND

AINL+

AINL-

TST1

HPFE

TST2

TST3

VD

I/O

I

I

-

-

I

I

O

I/O

I/O

I/O

-

FUNCTION

Analog signal input (R channel +)

Analog signal input (R channel -)

Reference voltage

Analog power supply

Analog ground

Analog signal input (L channel +)

Analog signal input (L channel -)

Test mode setting 1

HPF on/off

Test mode setting 2

Test mode setting 3

Digital power supply

PIN

NO.

20

21

22

23

24

13

14

15

16

17

18

19

NAME

DGND

TST4

AMODE2

/PD

MCLK

SCLK

LRCK

FSYNC

SDATA

CMODE

SMODE1

VB

I/O

-

I/O

I

I

I/O

I

I/O

O

I

I

-

FUNCTION

Digital ground

Test mode setting 4

Interface clock select 2

Power-down mode

Master clock input

Serial data clock

Input/Output channel clock

Frame synch. clock

Serial data output

Master clock select

Interface clock select 1

Digital power supply

PCM1716E (XU829A00) DAC (Digital to Analog Converter)

PIN

NO.

7

8

9

10

1

2

3

4

5

6

NAME

LRCK

DATA

BCK

CLKO

XTI

XTO

DGND

VDD

Vcc2R

AGND2R

I/O

-

-

-

-

I

O

I

I

I

O

FUNCTION

Data input

Bit clock

Clock input

Clock input

Clock out

Digital ground

Digital power supply (+5 V)

Analog power supply (+5 V)

Analog ground

PIN

NO.

21

22

23

24

15

16

17

18

19

20

NAME

Vcc1

VOUTL

NC

EXTL

AGND2L

Vcc2L

/ZERO

/RST

/CS/IWO

MODE

I/O

O

I

I

I

-

O

-

O

-

-

11

12

13

14

EXTR

NC

VOUTR

AGND1

O

-

O

-

Rch, analog output

Rch, analog voltage output

Analog ground

25

26

27

28

/MUTE

MD/DM0

MC/DM1

ML/IIS

I

I

I

I

FUNCTION

Analog power supply (+5 V)

Lch, analog voltage output

Lch, analog output

Analog ground

Analog power supply (+5 V)

Zero data flag

Reset

Chip select

Mode control select

(H: Software, L: Hardware)

Mute control

Mode control data/ De-emphasis select1

Mode control BCK/De-emphasis select2

Mode control Latch/input format select

HD63266F (XI939A00) FDC (Floppy Disk Controller)

PIN

NO.

27

28

29

30

31

32

23

24

25

26

19

20

21

22

15

16

17

18

11

12

13

14

7

8

9

10

1

2

3

4

5

6

NAME

D7

/DREQ

/IRQ

/DEND

VSS3

1/2 EX1

VCC1

NUM1

NUM3

IFS

SFORM

/INP

/READY

/WPRT

8"//5"

XTALSET

/RESET

E//RD

RW//WR

/CS

/DACK

RS0

RS1

VSS1

VSS2

D0

D1

D2

D3

D4

D5

D6

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

Data transmission speed

Clock select

Rest

Enable/Read

Read/write/Write

Chip select

DMA acknowledge

Register select

Ground

Data bus

FUNCTION

DMA request

Interrupt request

Data end

Ground

Power supply

Host interface select

Format data

Index pulse

Ready from FDD

Write control signal

PIN

NO.

59

60

61

62

63

64

55

56

57

58

51

52

53

54

47

48

49

50

43

44

45

46

39

40

41

42

33

34

35

36

37

38

NAME

/HDIR

/HLOAD

/HSEL

VSS7

/DS0

/DS1

/DS2

/DS3

VSS8

/MON0

/MON1

/MON2

/MON3

VSS9

/TRKO

/INDEX

/RDATA

XTAL2

EXTAL2

NC

XTAL1

EXTAL1

VSS4

VSS5

NC

VCC2

VCC3

VCC4

/WGATE

/WDATA

VSS6

/STEP

I/O

O

O

I

I

I

O

O

O

O

O

O

O

O

O

O

O

O

FUNCTION

Track 00 signal

Index signal

Read data input from FDD

Clock

Clock

Ground

Power supply

Write control

Writ data to FDD

Ground

Step signal to control head of FDD

Direction

Head load

Head select

Ground

Drive select

Ground

Motor on

Ground

-

I

I

I

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

I

I

I

I

I

-

-

-

O

O

O

O

O

O

O

O

OSC1

OSC2

/CS

A0

Vdd

D0

D1

D2

D3

D4

D5

D6

D7

XD3

/VRD

/RES

NC

NC

/RD

/WR

SEL2

SEL1

VA5

VA4

VA3

VA2

VA1

VA0

/VWR

/VCE

SED1335F0B (XQ595A00) LCDC (LCD Controller)

PIN

NO.

17

18

19

20

21

22

23

24

25

26

27

28

29

30

13

14

15

16

9

10

11

12

5

6

7

8

1

2

3

4

NAME I/O FUNCTION

VRAM address bus

VRAM read/write

Memory control

Not used

Initial clear

Not used

Not used

Read strobe

Write strobe

Bus select

Bus select

Clock

Clock

Chip select

Data mode select

Power supply

Data bus

Data bus output for 4 bit dot

NAME

VD2

VD1

VD0

VA15

VA14

VA13

VA12

VA11

VA10

VA9

VA8

VA7

VA6

NC

XD2

XD1

XD0

XECL

XSCL

Vss

LP

WF

YDIS

YD

YSCL

VD7

VD6

VD5

VD4

VD3

PIN

NO.

47

48

49

50

51

52

53

54

55

56

57

58

59

60

43

44

45

46

39

40

41

42

35

36

37

38

31

32

33

34

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

O

O

-

O

O

O

I/O

I/O

I/O

I/O

I/O

O

-

O

O

O

O

O

O

FUNCTION

Data bus output for 4 bit dot

S driver enable, chain clock

Data bus shift clock

Ground

X driver latch pulse

Frame signal for X/Y driver

Power down signal for displaying off mode

Scan start signal

Scan shift clock

VRAM data bus

VRAM address bus

Not used

PSR-740/PSR-640

IC BLOCK DIAGRAM

SN74HCU04NSR (XC723A00)

SN74HCU04N (IG142250)

Hex Inverter

DM: IC10,16(PSR-740) IC420(PSR-640)

JACK: IC02

1A

1

1Y

2

2A

3

2Y

4

3A

5

3Y

6

Vss

7

14

VDD

13

6A

12

6Y

11

5A

10

5Y

9

4A

8

4Y

SN74HC08NSR (XD831A00)

HD74LVC08FP (XU720A00)

Quad 2 Input AND

DM: IC15(PSR-740) IC370(PSR-640)

1A 1

1B 2

1Y 3

2A 4

2B 5

2Y 6

VSS 7

14 VDD

13 4B

12 4A

11 4Y

10 3B

9 3A

8 3Y

TC74HC32AF (XN241A00)

Quad 2 Input OR

DM: IC14(PSR-740) IC360(PSR-640)

1A 1

1B 2

1Y 3

2A 4

2B 5

2Y 6

GND 7

14 Vcc

13 4B

12 4A

11 4Y

10 3B

9 3A

8 3Y

TC74HC138AF (XM970A00)

TC74HC138AFEL (XW762A00)

3 to 8 Demultiplexer

DM: IC13,19(PSR-740) IC350,510(PSR-640)

SN74HC374ANSR (XQ042A00)

Octal 3-State D-Type Flip-Flop

DM: IC18,20(PSR-740) IC430,500(PSR-640)

Select

A

1

B

2

C

3

G2A

4

Enable

G2B

5

G1

6

Output

Y7

7

GND

8

B

A

Y0

C Y1

G2A Y2

G2B Y3

G1 Y4

Y7

Y6

Y5

16

Vcc

15

YO

14

Y1

13

Y2

12

Y3

11

Y4

10

Y5

9

Y6

Output

OUTPUT

CONTROL

1

1Q 2

1D 3

Q

OE

D CK

20 Vcc

Q

OE

CK D

19 8Q

18 8D

2D 4

2Q 5

D CK

OE

Q

CK

OE

D

Q

17 7D

16 7Q

3Q 6

3D 7

Q

OE

D CK

Q

OE

CK D

15 6Q

14 6D

4D 8

4Q 9

D CK

OE

Q

CK

OE

D

Q

13 5D

12 5Q

GND 10 11 CLOCK

SN75C1168N (XU463A00)

Line Driver / Receiver

JACK: IC01

1B

1

1A

2

1R

3

1DE

4

2R

5

2A

6

2B

7

GND

8

16

Vcc

15

1D

14

1Y

13

1Z

12

2DE

11

2Z

10

2Y

9

2D

M5227P (XF751A00)

5-Band Graphic Equalizer

AM: IC210,220

IN1

NF1

IN2

NF2

IN3

NF3

IN4

NF4

1

47k

+-

2

540

3

+-

47k

4

540

5

540

+-

47k

+ -

16

10k

15

10k

14

-Vcc

GND

+Vcc

13

OUT

12

-IN

6

540

7

8

540

47k

11

+IN

+-

47k

47k

+ -

540

10

9

NF5

IN5

M5223AFP (XV117A00)

M5223AL (XW373A00)

Dual Operational Amplifier

DM: IC33(PSR-740)

MIC: IC100(PSR-740)

Output A

Inverting

Input A

Non-Inverting

Input A

Ground

1

2

3

4 -V

+

+ -

+V 8

7

6

5

+DC Voltage

Supply

Output B

Inverting

Input B

Non-Inverting

Input B

LB1443N (XF483A00)

LED Driver

MIC: IC001(PSR-740)

1 2 3 4 5 6 7 8 9

D1 D2 D3 D4 GND D5 OUT IN VCC

µ

PC4570HA (XB247A00)

Dual Operational Amplifier

AM: IC320,510

A

-

B

1

+V

2 3

-IN

OUT

A A

4

+IN

A

5

-V

6

+IN

B

7

-IN

8

B

OUT

B

9

+V

19

PSR-740/PSR-640

TEST PROGRAM

A. PREPARATION

1) PA-6 (AC adaptor) is used.

2) The volume is usually moved to the use position when no volume change is required.

3) Measuring instruments: frequency counter, level meter (with JIS-C filter)

Note: Connect a stereo plug to the [PHONES] jack at 33 ohms.

4) Jigs: foot switch, MIDI cable, floppy disk (2HD & 2DD)

B. HOW TO ENTER THE TEST PROGRAM

AUTO MODE

While pressing the C3#, F3 and G3# keys, turn the [STANDBY/ON] switch on.

MANUAL MODE

While pressing the C2#, F2 and G2# keys, turn the [STANDBY/ON] switch on.

C. PROCEEDING THROUGH THE TEST PROGRAM

AUTO MODE

When the test program is started, the test is automatically executed.

When confirmation is necessary, the test program stops operating and waits for the instruction. At this time, press the

[START/STOP] button; the next test is automatically executed.

MANUAL MODE

The LCD will display “TEST” when entering the test program.

To select the program number, use the [BACK] and [NEXT] buttons.

To execute the test, press the [START/STOP] button.

To proceed to the next test, press the [START/STOP] button.

D.

TEST PROGRAM LIST

TEST NO.

1

2

3

4

7

9

10

11

13

14

LCD (initial)

001: Version

Displays ROM version

Test Functions and Judgment Criteria

002: Rom Chk1

ROM (Program, Wave) versions are displayed alternately on the LCD.

Checks the ROM

The test results appear on the LCD.

Checks all the RAMs that are connected to the CPU

003: Ram Chk1

The test results appear on the LCD.

004: WaveRomChk1 Checks the WAVE ROMs that are connected to the CPU

007: FDD Chk

The test results appear on the LCD.

Insert the floppy disks one by one (2DD and 2HD).

Checks the floppy disk drive unit

009: Eff1Ram Chk Checks the effect RAM1

010: Eff2Ram Chk Checks the effect RAM2

(PSR-740 only)

011: TG1 Chk

013: Pitch Chk

014: Output R

Outputs the sine wave by changing the channels in sequence from C1 to C6

After auto-scaling is finished, individual keys can be played. (If playing two or more keys

simultaneously, the first pressed key has priority to make a sound.)

Connect the frequency counter to the [PHONES] jack.

Sets PAN to Center and produces a signal at 440 +/- 0.22 Hz

Check that the correct signal is produced.

Connect the level meter (with a JIS-C filter) to the [PHONES] jack. (33 ohm load)

Set the [MASTER VOLUME] at maximum and check the output level (1 kHz).

PHONES L: less than -50.0 dBm PHONES R: -8.0 dBm +/- 2 dB

Connect the monaural plugs of the level meter (with a JIS-C filter) to the [AUX OUT] jacks.

AUX OUT L: less than -50.0 dBm AUX OUT R: -6.0 dBm +/- 2 dB

25

PSR-740/PSR-640

15

19

20

28

29

31

21

22

23

33

34

35

37

38

39

41

42

43

46

47

48

015: Output L

019: D/A Noise

Connect the level meter (with a JIS-C filter) to the [PHONES] jack. (33 ohm load)

Set the [MASTER VOLUME] at maximum and check the output level (1 kHz).

PHONES L: -8.0 dBm +/- 2 dB PHONES R: less than -50.0 dBm

Connect the monaural plugs of the level meter (with a JIS-C filter) to the [AUX OUT] jacks.

AUX OUT L: -6.0 dBm +/- 2 dB AUX OUT R: less than –50.0 dBm

Connect the level meter (with a JIS-C filter) to the [PHONES] jack. (33 ohm load)

Set the [MASTER VOLUME] at maximum. Check D/A converter noise.

PHONES L/R: Less than -72.0 dBm (PSR-740), Less than -80.0 dBm (PSR-640)

020: SW,LED Chk Check the switches on the panel.

Press the switches that are displayed on the LCD. A pre-assigned note is output when pressing the switch. (With some switches, the corresponding LED will light up.)

The test results appear on the LCD.

021: All LED On

022: Red LED On

Check that the all LEDs on the panel are on.

Check that the all red LEDs on the panel are on.

023: GreenLED on Check that the all green LEDs on the panel are on.

028: All LCD On

Check that all LCD dots are on. The LCD becomes black.

029: All LCD Off

031: Pedal1 Chk

Check that all LCD dots are off. The LCD becomes white.

Connect the foot switch (FC-4 or FC-5) to the [FOOT SWITCH] jack.

Check that the C3 note is output when pressing and releasing the pedal and the C4 note is output when pressing the pedal again.

033: PB Chk

034: MOD Chk

Check that the C3 note is output when rotating the [PITCH BEND] wheel to minimum and the C4 note is output when rotating it to maximum.

Check that the C3 note is output when rotating the [MODULATION] wheel to minimum and the C4 note is output when rotating it to maximum.

035: EXP Pedal Chk Connect the expression pedal (FC-7) to the [FOOT VOLUME] jack.

Check that the C3 note is output and the LCD displays 0 when pressing the expression pedal to the lowered position and the C4 note is output and the LCD displays 127 when backing it to the raised position.

037: Midi Chk After connecting the [MIDI IN] jack and [MIDI OUT] jack with a MIDI cable, execute the test. Set the [HOST SELECT] switch to MIDI

Check that the C4 note is output and that the test results appear on the LCD.

For factory test use only

038: To Host Chk

039: MIC Chk

(PSR-740 only)

Connect a microphone to the [MIC/LINE IN] jack and speak to it.

Set the [MIC/LINE] select switch to MIC and set the [INPUT VOLUME] at maximum.

Check that the voice is converted to the 1-octave- upper tone without noise.

Checks the ROMs that are connected to the CPU.

041: Rom Chk2

042: Ram Chk2

The test results appear on the LCD.

Checks the RAMs that are connected to the CPU.

The test results appear on the LCD.

043: WaveRomChk2

Checks the WAVE ROM.

The test results appear on the LCD.

046: BackUp Chk2 Performs the RAM back-up check.

Check that the display reads “NG,” then turn off the power switch.

Enter the test program and perform the RAM back-up checks, then check again.

047: Factory Set

048: Test Exit

Check that the LCD displays “OK.”

Note: Do not turn on the power switch by normal mode while standing by, as the

RAM data will be lost.

All the RAMs are initialized and set to the factory preset data when executing this test.

The results appear on the LCD.

Exit from the test program after executing this test.

26

* NOTE: The above tests Nos. 41-46, require approximately 25 minutes to conduct.

If the time is not available to perform the tests, proceed the test No.47 by pressing several the [NEXT] button.

PSR-740/PSR-640

DATA INITIALIZATION

All data can be initialized and restored to the factory preset condition by turning on the power while holding the highest (rightmost) white key on the keyboard. “Now initializing the internal memory...” will appear briefly on the display.

CAUTION

• All registration and User

Style/Pad memory data, plus the other settings listed above, will be erased and/or changed when the data initialization procedure is carried out.

• Carrying out the data initialization procedure will usually restore normal operation if the PSR-740/

640 freezes or begins to act erratically for any reason.

29

PSR-740/PSR-640

ALERT MESSAGE LIST

No file on disk!

Insert another disk.

The disk contains no file to be loaded, copied, or be deleted.

Insert the disk that contains files to be loaded, copied, or deleted.

An unformatted disk is inserted.

Unformatted disk!

Disk error!

Disk write-protected!

Disk file protected!

Can’t copy or record this file.

No disk!

Insert a disk.

Disk removed!

Disk full!

Cannot continue.

Wrong disk!

Reinsert the proper disk.

Same name on disk!

Change the file name.

Cannot record!

Maximum of 60 songs can be recorded.

Memory full!

Cannot continue.

An error occurred during execution of a disk operation.

Try changing the disk.

This message also may appear when executing the Load operation if the internal memory becomes full.

The floppy disk’s write-protect tab is set to ON.

Remove the disk, set write-protect to off, re-insert the disk and attempt the operation again.

The file is a purposely “copy-protected” disk.

The Copy function is not possible.

There is no floppy disk inserted into the disk drive.

Insert a disk.

An error occured because the disk was removed during a disk operation.

Never remove a disk during a disk operation since this could damage both the disk and the drive.

The disk’s memory capacity is full and no additional data can be recorded.

Delete one or more unneeded songs (using Delete), and attempt the operation again.

When using the Copy operation, the inserted disk is different from the source or destination disk.

Remove the disk and re-insert the proper Disk.

More than one file has the same name on the disk.

Change the name.

Maximum of 60 songs can be recorded.

Delete one or more unneeded songs (using Delete), and attempt the song recording again.

If the internal memory becomes full during Style/Pad recording, this message will appear on the display and recording will stop.

30

Memory full!

Clear unnecessary data.

Data not found!

User style full!

Cannot quantize the preset data.

Cannot operate during recording.

Cannot set the MIDI function during disk operations, etc.

Cannot turn harmony

ON during Style/Pad recording.

Cannot turn DSP ON during Style/Pad recording.

Cannot enter the functions during Pad recording.

Backup error!

Now initializing the internal memory...

Host is offline!

PSR-740/PSR-640

This message appears when executing the Quantize or Recording operations (in the Style Recording mode) when the internal memory is full.

This message appears when you attempt to edit, quantize or clear the track which contains no data in the Record mode.

This message indicates that recording a new User style cannot be started when all three User styles have recorded data. Make sure to clear at least one of the three User styles before recording a new User style.

This message appears when you attempt to edit or quantize the track

(other than RHYTHM) which contains preset data in the Style Record mode.

This function cannot be used during Song/Style/Pad recording.

The MIDI function cannot be set during recording, playback, and disk operations.

Harmony cannot be turned on during Style/Pad recording.

DSP cannot be turned on during Style/Pad recording.

This message appears to indicate you cannot enter the function when you select Multi Pad function in the Multi Pad Recording mode.

The backup data is faulty.

Use the data initialization function.

All data can be initialized and restore to the factory preset condition by turning the STANDBY switch ON while holding the highest (rightmost) white key on the keyboard.

This message may appear when the Host Select switch is set appropriately and the serial cable is connected to the TO HOST but not to the PC’s serial port (or the cable is properly connected to the PC which is currently turned off).

31

2

1

A B C

PSR-740 CIRCUIT DIAGRAM (DM1/2, MKS3, MKH, MKL, INV)

D

MKS3

E F

MKH

G H I J K L M

3

CPU

28CC1-8812655

MKL

4

5

6

7

8

to PN1-CN8 to JACK-JK5 to MIC-JACK - CN5

DM

1/2

CPU

FDC

9

FDC

10

REGULATOR +9V

REGULATOR +5V

11

to AM-CN310

DC-DC CONVERTER

12

PSR-740

A B C D

Floppy Disk Drive

E F

DECODER

SRAM 1M

INVETER OR

EPROM MAIN1 32M

OR

OR

OR

AND

AND

DRAM 4M

EPROM MAIN2 32M

D-FF TRANSISTOR ARRAY

DRAM 4M

to PN1-CN2

DECODER

TRANSISTOR ARRAY

D-FF

TRANSISTOR ARRAY

SRAM 256K

to PN1-CN1

G H I

INVERTER

LCDC

INVERTER

J K

N.C.

28CC1-8814267

L M

28CC1-8811360

N

N

28CC1-8811360

O

: Mylar Capacitor

: Metal Oxide Film Resistor

Note : See parts list for details of circuit board

component parts

INV

L C D

P Q

PSR-740

1

2

3

4

5

6

7

8

9

to Back - light Assembly

10

O

11

2NA-8814265

P

PSR-740

Q

12

2

1

A B C

PSR-740 CIRCUIT DIAGRAM (DM2/2, MIC-JACK, MIC)

D

DM

2/2

5

6

7

8

9

3

4

10

11

12

PSR-740

A B C

VOP3

SWP30B

D

E

E

F G

WAVE ROM LL 32M

INVERTER

WAVE ROM LH 16M

WAVE ROM HL 32M

INVERTER

WAVE ROM HH 16M

DRAM 4M

REGULATOR +3.3V

ADC

not installed installed

( )

( )

DRAM 4M

DAC

F G

H

H I

I J K

OP AMP

OP AMP

28CC1-8814267 to AM-CN320

J K

L M N O

MIC

(RE) (GR)

LED DRIVER

0P AMP

18K

560P

100

4.7K

5600p

0P AMP

28CC1-8814266

P Q

PSR-740

1

2

5

3

4

6

7

L

MIC /LINE IN

MIC-JACK

28CC1-8814268 to DM-CN3

M

: Ceramic Capacitor

: Semi-Conductive Ceramic Capacitor

Note : See parts list for details of circuit board

component parts

N O

10

11

P

PSR-740

Q

12

8

9

4

5

to PN1-CN8

6

to JACK-JK5

7

8

9

3

2

1

A B C

PSR-640 CIRCUIT DIAGRAM (DM, MKS3, MKH, MKL, INV)

D

MKS3

E

CPU

28CC1-8812655

DM

DRAM 4M

CPU

SWX00B

F

MKH

G H I J K

MKL

RESET

DECODER

DECODER

OR

AND

DECODER

AND

PROGRAM1 ROM H 32M

SRAM 1M

DRAM 16M

ROM WAVE1 32M

PROGRAM2 ROM L32M

INVERTER

ROM WAVE2 32M

INVERTER

D-FF

to PN1-CN2

DECODER

TRANSISTOR ARRAY

to PN1-CN1

D - FF

TRANSISTOR ARRAY

47

SRAM 256K

LCDC

L

10

11

12

PSR-640

A B C D

M

E

REGULATOR +3.3V

REGULATOR +5V

DAC

F

to AM - CN320

G H

FDC

DC-DC CONVERTER

to AM - CN310

28CC1-8813199

I J K L

INV

M

28CC1-8811360

Floppy Disk Drive

N

L C D

28CC1-8811360

O

to Back - light Assembly

P Q

PSR-640

1

2

3

4

5

6

7

8

9

10

2NA-8814265

N

Note : See parts list for details of circuit board

component parts

: Ceramic Capacitor

: Mylar Capacitor

O P

11

PSR-640

Q

12

8

9

7

6

3

4

5

1

A B C D E F

PSR-740 / PSR-640 OVERALL CIRCUIT DIAGRAM (AM, HP, P.SW, VR, JACK, PN1, PN2, PN3, PN4, WH1, WH2, WH3, ENC)

G

2

to DM - CN2

(PSR-740) to DM - CN910

(PSR-640)

AM

REGULATOR +9V

to DM - CN14

(PSR-740) to DM - CN610

(PSR-640)

EQUALIZER

EQUALIZER

LA4525

POWER AMP 0.65W 2CH

*

*

POWER AMP

1.7W

LA4262

*

OP AMP

*

Parts marked are different between the models.

OP AMP

*

PSR-640

PSR-740

R503,R504

39K

470K

R603,R604

2.2K

1.8K

HP

28CC1-8813198

PHONES to Toweeter

P.SW

28CC1-8813198

VR

28CC1-8813198

to Woofer

28CC1-8813198

H

PN1

/

LANGUAGE

HELP/

DIRECT ACCESS

PN2

28CC1-8814385

PN3

28CC1-8814385

PN4

28CC1-8814385

10

NJM78L05A-T3(XJ757A00)

REGULATOR +5V

NJM78L05A(XJ596A00)

REGULATOR +5V

3

2

1

1: OUTPUT

2: COMMON

3: INPUT

PQ09RA1(XQ774A00)

REGULATOR +9V

1

2

3

1: OUTPUT

2: COMMON

3: INPUT

µ

PC2933T-E1(XS516A00)

µ

PC29M33T-E1(XU965A00)

REGULATOR +3.3V

2

1

2

3

4

SI-8050S(LF1103)

(XT514A00)

REGULATOR +5V

1: IN

2: OUT

3: GND

4: ON/OFcont.

1

3

1: V in

2: GND

3: V out

AN77L09-TA (XT676A00)

REGULATOR +9V

1

3

2

4

5

S3V20 (VR313500)

DIODE

1: V in

2: SW out

3: GND

4: V os

5: S.S

1

2

3

1: OUTPUT

2: COMMON

3: INPUT

2

1

1: ANODE

2: CATHODE

COUNT

INTRO

INTRO

MAIN / AUTO FILL

ON / OFF

SIMPLE

ENDING

28CC1-8814385

11

12

PSR-740 / PSR-640

A B C D E F G

I

H

WH1

(PSR-640)

WH3

(PSR-740)

28CC1-

8814385

WH2

28CC1-8814385

I

J

+

FOOT SWITCH

REGISTRATION MEMORY

ONETOUCH SETTING

J

JACK

K

SONG

ENC

28CC1-

8814385

K

L

L

1 2 3

4 5 6

7 8 9

- / NO 0 + / YES

DISK

UTILITY

MULTI PAD

M

M

INVERTER

*

C101, C102, C103: PSR-640 only to DM-CN4 (PSR-740) to DM-CN710 (PSR-640) to DM-CN12 (PSR-740) to DM-CN510 (PSR-640) to DM-CN10 (PSR-740) to DM-CN520 (PSR-640)

N

FOOT VOLUME

C101

*

LINE TRANSCEIVER

28CC1-8814362

O

to DM-CN5

(PSR-740) to DM-720

(PSR-640)

Note : See parts list for details of circuit board

component parts

TO SERVICE PERSONNEL

Critical Components Infomation

Components having special characteristics are marked and must be replaced with parts having specifications equel to those originally installed.

: Ceramic Capacitor

: Semi-Conductive Ceramic Capacitor

: Mylar Capacitor

N O

P Q

PSR-740 / PSR-640

1

2

3

4

5

6

7

8

9

10

11

P

PSR-740 / PSR-640

Q

12

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