Yamaha P-85 ユーザーマニュアル

SERVICE MANUAL

HAMAMATSU, JAPAN

SERVICE MANUAL

&

’07.10

SPECIFICATIONS .................................................3

PANEL LAYOUT ......................................4

CIRCUIT BOARD LAYOUT .................5

DISASSEMBLY PROCEDURE ..............................6

LSI PIN DESCRIPTION .............................19

IC BLOCK DIAGRAM ..................................21

CIRCUIT BOARDS .......................................22

TEST PROGRAM .............................31/35

DATA BACKUP ...........39/43

MIDI IMPLEMENTATION CHART ...........................................47

MIDI DATA FORMAT ...............................................................48

PARTS LIST

BLOCK DIAGRAM

CIRCUIT DIAGRAM

CONTENTS

P-85

P-85S

CL

001792

P-85: 200710

P-85S: 200710

P-85/P-85S

2

WARNING

IMPORTANT NOTICE

This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic

service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users,

and have therefore not been restated.

WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury,

destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise

all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the

appointed service representative.

IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certification,

recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.

The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service

departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in

specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the

distributor’s Service Division.

WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated

by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.)

IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.

Components having special characteristics are marked and must be replaced with parts having speciﬁ cation equal to those

originally installed.

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:

BLUE : NEUTRAL

BROWN : LIVE

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured makings identifying the terminals in

your plug proceed as follows:

The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.

Making sure that neither core is connected to the earth terminal of the three pin plug.

• This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd. (2 wires)

WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/

flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.

3

P-85/P-85S

SPECIFICATIONS

Keyboard 88 keys (A-1–C7)

Sound Source AWM Stereo Sampling

Polyphony (Max.) 64

Voice Selection 10

Effect Reverb

Volume Master Volume

Controls Dual, Metronome, Transpose, Tuning, Touch (Hard/Medium/Soft/Fixed)

Pedal SUSTAIN PEDAL*

Demo Songs 10 Voice Demo Songs, 50 Piano Preset Songs

Recording/Playback 1-track recording/playback (1 user song)

MIDI Local On/Off, Transmit/Recieve channel, Program change On/Off, Control change On/Off

Jacks/Connectors MIDI (IN/OUT), PHONES, DC IN 12V, SUSTAIN, PEDAL UNIT

Main Ampliﬁ ers 6 W + 6 W

Speakers (12 cm × 6 cm) × 2

Dimensions (W × D × H) 1,326mm × 295mm × 151.5mm [52-3/16" × 11-5/8" × 5-15/16"]

Weight 11.6 kg (25 lbs., 9 oz.)

Power Supply Adaptor: PA-5D, PA-150, or an equivalent recommended by Yamaha

Power Consumption 20 W

Accessories

Owner’s Manual, Quick Operation Guide, AC Power Adaptor, Pedal (FC5), Music Rest

When an optional FC3 Foot Pedal or an optional LP-5 Pedal Unit is connected, the half pedal effect can be used.

Speciﬁ cations and descriptions in this owner’s manual are for information purposes only. Yamaha Corp. reserves the right to

change or modify products or speciﬁ cations at any time without prior notice. Since speciﬁ cations, equipment or options may

not be the same in every locale, please check with your Yamaha dealer.

P-85/P-85S

4

PANEL LAYOUT

q [STANDBY/ON] switch

w [MASTER VOLUME] slider

e [DEMO/SONG button

r SELECT [

] [ ]/TEMPO [ ] [ ] buttons

t [METRONOME] button

y [REC] button

u [PLAY] button

i VOICE buttons

o [PEDAL UNIT] jack

!0 [DC IN 12V] jack

!1 MIDI [IN] [OUT] terminals

!2 [SUSTAIN] jack

!3 [PHONES] jack

-

40

(

+



  

2'./

Shows the jacks

and terminals as

seen when viewed

from the rear of

the instrument.

Shows the jacks

and terminals as

seen when viewed

from the rear of

the instrument.

q

w

e

r

t

y

u

i

o

!0

!1

!2

!3

5

P-85/P-85S

CIRCUIT BOARD LAYOUT

Upper case assembly

Lower case assembly

Keyboard assembly

Speaker L Speaker R

DM

JK

HP

AM

PN1 PN2

GHL88H

GHL88MGHL88L

P-85/P-85S

6

Fig. 1

DM

CN301CN602 CN301CN602

[33]

[34][33]

[33]

[33][33]

[33] [33] [33][33][33] [37] FFC Cover

Lower case assembly

[33] [33] [33] [33] [33]

Photo 2

DISASSEMBLY PROCEDURE

1. Lower Case Assembly

(Time required: About 10 minutes)

1-1 Remove the four (4) screws marked [37]. The FFC

cover can then be removed. (Fig. 1)

1-2 Disconnect the connectors CN301 and CN602 on

the DM circuit board. (Photo 2)

1-3 Remove the fifty-seven (57) screws marked

[33] and the screw marked [34]. The lower case

assembly can then be removed. (Fig. 1)

Caution:

1. Be sure to attach the removed ﬁ lament tape just

as it was before removal.

2. Pay attention not to insert and install the cable

to the connector inversely. (Photo 1)

Front Side (Printed Side) Back Side

Photo 1

7

P-85/P-85S

DM

JK

HP

AM

[30A][30B][32]

[30B] [32]

[30B]

[36]

[30A]

[30C] [30C]

Lower case assembly

Speaker L

Speaker R

[30D]

Fig. 2

2. DM Circuit Board

(Time required: About 11 minutes)

2-1

Remove the lower case assembly. (See procedure 1.)

2-2 Remove the four (4) screws marked [30A]. The

DM circuit board can then be removed. (Fig. 2)

3. AM Circuit Board

(Time required: About 12 minutes)

3-1

Remove the lower case assembly. (See procedure 1.)

3-2 Remove the eleven (11) screws marked [30B] and

the screw marked [36]. The AM circuit board can

then be removed. (Fig. 2)

4. JK Circuit Board

(Time required: About 11 minutes)

4-1

Remove the lower case assembly. (See procedure 1.)

4-2 Remove the four (4) screws marked [30C]. The JK

circuit board can then be removed. (Fig. 2)

5. HP Circuit Board

(Time required: About 11 minutes)

5-1

Remove the lower case assembly. (See procedure 1.)

5-2 Remove the four (4) screws marked [30D]. The

HP circuit board can then be removed. (Fig. 2)

6. Speaker

(Time required: About 11 minutes)

6-1

Remove the lower case assembly. (See procedure 1.)

6-2 Remove the four (4) screws marked [32]. The

speaker can then be removed. (Fig. 2)

* The right and left speakers can be removed in

the same way.

P-85/P-85S

8

Upper case assembly

[30E]

Keyboard assembly

[31] [31][31]

[30E]

Fig. 3

Slide knob

Slide knob

Fig. 4

8. PN1 Circuit Board

(Time required: About 14 minutes)

8-1 Tie a string or the like to the slide knob and pull

the string to remove the slide knob from the control

panel side. (Fig. 4)

8-2

Remove the lower case assembly. (See procedure 1.)

8-3 Remove the keyboard assembly. (See procedure 7.)

8-4 Remove the eight (8) screws marked [30F]. The

PN1 circuit board can then be removed. (Fig. 5)

7. Keyboard Assembly

(Time required: About 13 minutes)

7-1

Remove the lower case assembly. (See procedure 1.)

7-2 Remove the eight (8) screws marked [30E] and

eight (8) screws marked [31]. The keyboard

assembly can then be removed. (Fig. 3)

9

P-85/P-85S

PN1 PN2

[A] [A][A] [A]

[30G]

[30F] [30F] [30G] [30G]

Upper case assembly

Speaker grilleSpeaker grille

Fig. 5

9. PN2 Circuit Board

(Time required: About 14 minutes)

9-1

Remove the lower case assembly. (See procedure 1.)

9-2 Remove the keyboard assembly. (See procedure 7.)

9-3 Remove the ten (10) screws marked [30G]. The

PN2 circuit board can then be removed. (Fig. 5)

10. Speaker Grille

(Time required: About 14 minutes)

10-1

Remove the lower case assembly. (See procedure 1.)

10-2 Remove the keyboard assembly. (See procedure 7.)

10-3 Set the six (6) hooks [A] parallel to the groove in

the upper case assembly. (Fig. 5)

10-4 Remove the speaker grille.

* The right and left speaker grilles can be

removed in the same way.

P-85/P-85S

10

PK cable

Cord clamper

Fig. 6

Pedal assembly

Keyboard stand

Pedal board assembly

Fig. 7

Plate Upper pedal case

Pedal assembly

[160A]

[150]

Fig. 8

11. Pedal Assembly, PEDAL Circuit Board

(Time required: About 4 minutes)

11-1

Disconnect the PK cable from the [PEDAL UNIT]

jack. (Fig. 6)

11-2

Tilt the keyboard stand backward to lift the forward

bottom portions and remove the pedal assembly.

(Fig. 7)

* The pedal assembly is just ﬁ t into the concave

portion in the middle of the pedal board assembly.

11-3 Place the pedal assembly upside down, remove

the three (3) screws marked [150] to remove the

pedal plate. (Fig. 8)

11-4 Remove the eight (8) screws marked [160A]. The

upper pedal case can then be removed. (Fig. 8)

11-5 Remove the six (6) screws marked [160B]. The

stopper stay assembly can then be removed.

(Fig. 9)

11

P-85/P-85S

Stopper stay assembly

[160B]

Pedal pieceLower pedal case

PEDAL

Lower pedal case

[90]

Fig. 9

Fig. 10

Fig. 11

11-6 Rotate and remove the three (3) pedal pieces from

the lower pedal case. (Fig. 10)

11-7 Remove the six (6) screws marked [90]. The

PEDAL circuit board can then be removed. (Fig. 11)

P-85/P-85S

12

[270B]

A-1 Key

B-1 Key

One octave

(C0–B0)

[270A] [270A] [270A] [270A] [270A] [270A] [270A] [270C]

C7 Key

One octave

(C1–B1)

One octave

(C2–B2)

One octave

(C3–B3)

One octave

(C4–B4)

One octave

(C5–B5)

One octave

(C6–B6)

• Keyboard assembly

Fig. 12

Grease

Rubber contact

GHL88M

End lug of white key

Fig. 13

Actuate rubber

Remove in this way.

Fig. 14

12. Disassembling the Keyboard Assembly

12-1 White key assembly and black key assembly

Remove the four (4) screws marked [270A] ﬁ xing

the black and white key assembly for one octave

(C–B). To remove the back of the black and white

key assembly of each octave, while pushing the

end lug of white keys rearward and lifting the back

of keys, slide the black and white key assembly

towards you. (Fig.12, Fig.13)

12-2 When removing white keys numbered as A-1 and

B-1 key and black key, remove two (2) screws

marked [270B] and then lift the back of the keys

and slide the black and white keys towards you.

(Fig. 12)

12-3 When removing the C7 key, remove a screw

marked [270C] and then lift the back of C7 key

and slide it towards you. (Fig. 12)

Note: When removing white key assembly and black key

assembly, be careful not to allow grease to attach to

the circuit board and rubber contacts, etc. (Fig. 13)

12-4 Actuate Rubber

Remove the actuate rubber. (Fig. 14)

13

P-85/P-85S

One octave

(C–B)

One octave

(C–B)

One octave

(C#–C)

Rubber contact Key

[260A]

Rubber contact

[260B] [260C]

Rubber contact

Rubber contact Rubber contact

Rubber contact

GHL88H

GHL88MGHL88L

• Keyboard assembly

Fig. 15

Fig. 15-1

12-5 Rubber Contact

Remove the black and white key assembly for two

octaves related to the subject rubber contact. The

rubber contact can then be removed.

(Fig. 15, Fig. 15-1)

* Note that the rubber contact has a specific

installation direction.

* One rubber contact ﬁ ts for C# – C (for C – B

keys).

P-85/P-85S

14

GHL88M

FFC cable

Frame

FFC cable

Filament tape

CN2 (27P)

GHL88M

CN2

(27P)

Through hole

Filament tape

• Keyboard assembly

Fig. 16

12-6 GHL88L Circuit Board

Remove the black and white key assembly (A-1 –

B2). (See procedure 12-1)

Remove the six (6) screws marked [260A]. The

GHL88L circuit board can then be removed. (Fig. 15)

12-7 GHL88M Circuit Board

Remove the black and white key assembly (C1 –

B5). (See procedure 12-1)

Remove the seven (7) screws marked [260B]. The

GHL88M circuit board can then be removed. (Fig. 15)

Detach the ﬁ lament tape and disconnect the FFC

cable. (Fig. 16)

12-8 GHL88H Circuit Board

Remove the black and white key assembly (C5 –

C7). (See procedure 12-1)

Remove the ﬁ ve (5) screws marked [260C]. The

GHL88H circuit board can then be removed. (Fig. 15)

15

P-85/P-85S

Frame

Hammer, white key

Hammer, black key

Bearing claw

Hammer axis

Bottom side

Push

Hammer, W1 (white key)

Hammer, B1 (black key)

Bearing claw

Bearing section

Fig. 17

Fig. 18

• Keyboard assembly

12-9 Hammer (White Key), (Black Key)

Remove the black and white key assembly for the

related keys.

With the key frame placed upside down, push the

hammer forward from the rear, then a click sound

is heard and the hammer bearing section can be

removed from the hammer axis of the key frame.

Take out the hammer sideways. (Fig. 17, Fig. 18)

* When removing the hammer, use care not to

cause damage to the hammer bearing and its

claw.

P-85/P-85S

16

Frame

Hammer, white key

Hammer, black key

Hammer axis

Bottom side

Pull forward

Bearing section

Apply grease

Fig. 19

• Keyboard assembly

13. Assembling the Keyboard Assembly

13-1 Hammer (White Key), (Black Key)

After applying grease to the bearing section of

the hammer, bring the hammer (white key) (black

key) sideways from the rear, ﬁ t its bearing section

to the hammer axis of the key frame and pull it

forward until a click sound is heard. (Fig. 19)

* There are 8 hammer types differing in weight.

Be sure to check the type of the hammer for

correct installation. (See the table below)

Part Name Range for Applicable Tone Name

White Key

Hammer, W1 A-1 – F1

Hammer, W2 G1 – E3

Hammer, W3 F3 – D5

Hammer, W4 E5 – C7

Black Key

Hammer, B1 A#-1 – F#1

Hammer, B2 G#1 – D#3

Hammer, B3 F#3 – C#5

Hammer, B4 D#5 – A#6

13-2 GHL88L Circuit Board

Tighten the six (6) screws marked [260A] to ﬁ x the

GHL88L circuit boards. (Fig. 15)

13-3 GHL88M Circuit Board

Connect the FFC cable to CN2 of the GHL88M

circuit board, attach the ﬁ lament tape. (Fig. 16)

Pass the end of the cable into the through hole in

the frame and pull it out from its outlet. (Fig. 16)

Tighten the seven (7) screws marked [260B] to ﬁ x

the GHL88M circuit board. (Fig. 15)

17

P-85/P-85S

Rubber contact

GHL88L

Triangle mark

Front

Rubber contact

Clip

GHL88L

Fig. 20 Fig. 21

Actuate rubber

Fit in this way.

Apply grease

Fig. 22

13-4 GHL88H Circuit Board

Tighten the five (5) screws marked [260C] to fix

the GHL88H circuit board. (Fig. 15)

13-5 Rubber Contact

Note that the rubber contact has speciﬁ c installation

direction. Be careful not to install it in the wrong

direction.

* A triangle mark ( ) on the rubber contact

must face the front. (Fig. 20)

To prevent looseness of the rubber contact,

ﬁ t it securely in place using a clip or similar

object. (Fig. 21)

13-6 Actuate Rubber

After applying grease to top and bottom faces of

the actuate rubber, fit it to the white key (black

key). (Fig. 22)

P-85/P-85S

18

Contact arm

Hammer

Actuate rubber

Slit

Key guide

Actuate rubber

Slit

Contact arm

Apply grease

Key guide

Fig. 23

13-7 White key assembly and black key assembly

After applying grease to the key guide, install the

white key assembly/black key assembly. At this

time, check to make sure that the key guide of

the key frame and inside slit at the front of white

key as well as the contact arm of the hammer and

actuate rubber of the white key assembly/black

key assembly are installed properly. (Fig. 23)

Use the four (4) screws marked [270A] to fix 1

octave white key assembly/black key assembly.

(Fig. 12)

13-8 Use the two (2) screws marked [270B] to ﬁ x the

A-1 to B-1 keys. (Fig. 12)

13-9 Use a screw marked [270C] to ﬁ x the C7 key.

(Fig. 12)

19

P-85/P-85S

NO.

I/O FUNCTIONNAME

NO.

I/O FUNCTIONNAME

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

P12

P11

P10

P47/KR7

P46/KR6

P45/KR5

P44/KR4

P43/KR3

P42/KR2

P41/KR1

P40/KR0

NC

IC

X2

X1

VSS0

VDD0

/RESET

P53

P52

P51/TO2

P50/TI0/TO0

I/O

-

I

-

I

I/O

Port 1

Port 4/Key return signal detection input

Internally connected (N.C.)

Clock

Ground

Power supply

System reset

Port 5

Port 5/16-bit timer output

Port 5/External count clock input to 8-bit timer/8-bit timer output

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

P32/INTP2/CPT2

P31/INTP1

P30/INTP0

P22/RXD/SI0

P21/TXD/SO0

P20/ASCK//SCK0

P07

P06

P05

P04

P03

P02

P01

P00

NC

VDD1

VSS1

P17

P16

P15

P14

P13

I/O

-

I/O

Port 3/External interrupt input/Capture edge input

Port 3/External interrupt input

Port 2/Asynchronous serial interface serial data input/Serial interface serial data input

Port 2/Asynchronous serial interface serial data output/Serial interface serial data output

Port 2/Asynchronous serial interface serial clock input/Serial interface serial clock

Port 0

Power supply

Ground

Port 1

µPD789022GB-A15-8E

(XZ560100) CPU (MKS)

DM: IC301

AK4385ET (X6040A00) DAC (Digital to Analog Converter)

DM: IC401

NO.

NAME I/O FUNCTION

1

2

3

4

5

6

7

8

MCLK

BICK

SDTI

LRCK

PDN

CSN

CCLK

CDTI

I

Master Clock

Audio Serial Data Clock

Audio Serial Date Input

L/R Clock

Power Down mode

Chip Select

Control Data Input

NO.

NAME I/O FUNCTION

9

10

11

12

13

14

15

16

AOUTR-

AOUTR+

AOUTL-

AOUTL+

Vss

VDD

DZFR

DZFL

O

-

O

Rch Analog out(-)

Rch Analog out(+)

Lch Analog out(-)

Lch Analog out(+)

Ground

Power Supply

Rch Data Zero Input Detect

Lch Data Zero Input Detect

NO.

I/O FUNCTIONNAME

NO.

I/O FUNCTIONNAME

1

2

3

4

5

CS

VA

GND

AIN4

AIN3

I

-

I/O

Chip select

Power supply +3.3 V

Ground

Analog input

6

7

8

9

10

AIN2

AIN1

DIN

DOUT

SCLK

I/O

I

O

I

Analog input

Digital data input

Digital data output

Digital clock input

ADC084S021CIMM

(X6905A00) ADC

(Analog to Digital Converter)

DM: IC107

LSI PIN DESCRIPTION LSI

ADC084S021IMM (X6905A00) ADC (Analog to Digital Converter) ..............................19

AK4385ET (X6040A00) DAC (Digital to Analog Converter) ..........................................19

µPD789022GB-A15-8E (XZ560100) CPU (MKS) .........................................................19

YMW767-VTZ (X6055A00) CPU (SWL01T)..................................................................20

P-85/P-85S

20

NO.

I/O FUNCTIONNAME

NO.

I/O FUNCTIONNAME

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

Vss

TESTN

PLLBPN

PLLV

DD

CIN

PLLVss

TRSTN

TMS

TCK

TDI

TDO

XI

XO

Vss

V

DD

ICN

ECSN

EWRN/PD5

ERDN/PD4

EA3/PD3

EA2/PD2

EA1/PD1

EA0/PD0

IOVDD

ED0/PC0

ED1/PC1

ED2/PC2

ED3/PC3

ED4/PC4

ED5/PC5

ED6/PC6

ED7/PC7

Vss

IRQ0N/PH0

TxD0

RxD0

TxD1/PG2

RxD1/PH1

SCLK1/PH2

SDO

SDI/PH3

BCLK

WCLK/SYO

SYSCLK/PG3

Vss

V

DD

IOVDD

PA0

PA1

PA2

PA3

PA4

PA5

PA6

PA7

Vss

PB0

PB1

PB2

PB3

PB4

PB5

PB6

PB7/SYI

-

I

-

I

O

I

O

-

I

-

I/O

-

I

O

I

O

I

O

I

O

-

I/O

-

I/O

Ground

Input for TEST

PLL bypass select

PLL Power supply +2.5 V

Capacitor terminal for PLL

PLL Ground

JTAG input

JTAG output

Crystal oscillator

Ground

Power supply +2.5 V

Hardware reset

CPU I/F chip select

CPU I/F write enable / Port D

CPU I/F read enable / Port D

CPU I/F address bus / Port D

Power supply +3.3 V

CPU I/F data bus / Port C

Ground

Interrupt input / Port H

Serial output

Serial input

Serial output / Port G

Serial input / Port H

External synchronization clock / Port H

Serial output

Serial input / Port H

Bit clock output

Word clock output

Clock output / Port G

Ground

Power supply +2.5 V

Power supply +3.3 V

I/O port A

Ground

I/O port B

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

Vss

IOVDD

LBN/LWRN/PF6

UBN/UWRN/PF7

RDN/PF4

MD00

MD08

MD01

MD09

MD02

MD10

MD03

Vss

MD11

MD04

MD12

MD05

MD13

MD06

MD14

MD07

MD15

WRN/PF5

Vss

VDD

IOVDD

MA17

MA16

MA15

MA14

MA13

MA12

MA11

MA10

MA09

MA08

MA07

MA06

MA05

Vss

MA04

MA03

MA02

MA01

CS0N/PG0

MA18

MA19

MA21/PF1

MA22/PF2

MA20

MA23/PF3

CSIN/PG1

MA00/PF0

Vss

V

DD

IOVDD

CS2N/PE0

CS3N/PE1

CS4N/CASN/PE2

CS5N/PE3

CS50RDN/PE4

CS51WRN/PE5

CS52WRN/PE6

CS53WRN/RASN/PE7

-

O

I/O

-

I/O

O

-

O

-

O

-

O

Ground

Power supply +3.3 V

External memory lower-byte enable / Port F

External memory upper-byte enable / Port F

External memory read enable / Port F

External memory data bus

Ground

External memory data bus

Ground

Power supply +2.5 V

Power supply +3.3 V

External memory address bus

Ground

External memory address bus

External memory chip select / Port G

External memory address bus

External memory address bus / Port F

External memory address bus

External memory address bus / Port F

External memory chip select / Port G

External memory address bus / Port F

Ground

Power supply +2.5 V

Power supply +3.3 V

External memory chip select / Port E

YMW767-VTZ (X6055A00) CPU (SWL01T)

DM: IC101, IC201

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Yamaha P-85 ユーザーマニュアル

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