Yamaha P-200 Service Manual

SERVICE MANUAL

ELECTRONIC PIANO

SY

011392

HAMAMATSU, JAPAN

1.96K-759 Printed in Japan '98.03

CONTENTS

CIRCUIT BOARD LAYOUT······························································ 3
BLOCK DIAGRAM·············································································· 4
DISASSEMBLY PROCEDURE························································5
LSI PIN DESCRIPTION··································································· 13
IC BLOCK DIAGRAM······································································ 16
CIRCUIT BOARDS··········································································· 17
TEST PROGRAM············································································· 21
INSPECTIONS·················································································· 23
SPECIFICATIONS ··········································································· 24
PANEL LAYOUT··············································································· 25
ERROR MESSAGES······································································· 26
INITIALIZE························································································· 27
MIDI DATA FORMAT······································································· 28
MIDI IMPLEMENTATION CHART················································· 37
PARTS LIST
OVERALL CIRCUIT DIAGRAM

19980301-198000

P-200

2

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/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.

LITHIUM BATTERY HANDLING

This product uses a lithium battery for memory back-up.

WARNING: Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following

precautions when handling or replacing lithium batteries.

Leave lithium battery replacement to qualified service personnel.
Always replace with batteries of the same type.
When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells.
Never solder directly to the cells. Perform the soldering as quickly as possible.
Never reverse the battery polarities when installing.
Do not short the batteries.
Do not attempt to recharge these batteries.
Do not disassemble the batteries.
Never heat batteries or throw them into fire.

ADVARSEL!

Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det
brugte batteri tilbage til leverandøren.

VARNING

Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens instruktion.

VAROITUS

Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.

The following information complies with Dutch Official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF
BATTERIES.

•Please refer to the diassembly procedure for the removal of Back-up Battery.

•Leest u voor het verwijderen van de backup batterij deze beschrijving.

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 you body may have

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

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

unit.

WARNING

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

CIRCUIT BOARD LAYOUT

P-200

3

Speaker-L Speaker-R

AC cord

Earth wire

Earth wire

WHEEL1
(PITCH)

WHEEL2
(MODULATION)

HP

GH-D SW L GH-D SW HKeyboard assembly

Power transformer

FU60P

MA60

MJ

DM

PN4PN1PN2

PN3

LCD assembly

POWER switch

Location

Connector Assembly

Destination

Keyboard

Pin L Parts No.

Connector assembly listed above are not available as service parts.

2NC-87520 3/3

3

BLOCK DIAGRAM

P-200

4

DM

PN2

LCD

WHEEL AN4..5

GHD88Key

BEND

LCD

CONT.

CS

SW LED

FRONT PANEL

PN1 PN4

MJ

SW LED

LOW MIDEQHI

IN OUT

MIDI

MIDI

THRU

FC SUS SOS SOFT

REAR PANEL

LINE OUT

L/MONO R L/MONO R

LINE IN

SPEAKER

OFF/ON

SW1

MOD

+5D

FLIP

FLOP

FLIP

FLOP

TR

ARRAY

TR

ARRAY

TA1

TA2

IC14

IC15

IC20

16MHz

FLIP

FLOP

ACK

CN4

CN2

KSN2

LCDCONT

DB0..7

KPB0..2

AN0..2

RXD0

TXD0

AN6

PA2

PA1

PA0

INL

INR

LCDCONT

RESET

SCK1

PA7

RXD1

D8..15

D8..15

KEYBOARD

HP

PN3

MA60

FU60P

AN3

KPB2..3

KPA0..2

KPA0..7

KPB0..3

KPB3

PB0..2

CN1,6 CN12 CN7,8

CN1,2

CN9

CN4

CN5

CN1

CN3

CN7

CN1

PHONES

CN2

CN8

SPEAKER(L)

13cm 30W

SPEAKER(R)

13cm 30W

CN9

CN6

CN2

CN1

CN3

CN1

CN4

CN11

CN10

CN13

CN6

CN6

CN5

CN3

CN32CN31

CN4

CN5

CN4

IC5

POWER AMP

MIX

IC2

IC1

INL

INR

M.VOL

MIX

POWER AMP

Trans Assy

POWER

SUPPLY

POWER SWITCH

AC IN

FUSE

LINE

FILTER

MUTING

CIRCUIT

PB0..7

KPB0.7

CN22,21

-VCC

+VCC

-VCC

+VCC

+50

+B

+5A

-5A

+5A

-5A

+5A

-5A

5V

REG

MUTE

-12

-12

+12

-12

+12

+12

PSRAM

256k

IC12

D8..15

D0..7

A0..14

A0..6

D8..15

A0..5

D8..15

A0..18

A1..18

PA0-2

AN0-7

AN7

D0..15

D0..15

A0..13

D8..15

MT1 MD8

SY1

CKM1

SY0

CKM0

CD

CD

IC13

PSRAM

256k

L
R

LPF

LPF

IC33

IC32

IC30

D/A

20bit

IC1

IC19

IC23

3V

BATTERY
(CR2032)

BATCK

BATCK

BACK

UP

MAIN CPU

H8/3002

XQ375A0

INITIAL
CLEAR

256k

SRAM

IC3

4M
ROM
(DIP)

IC2

IC31

D/A

20bit

DSPNDSPN

EST

IC29

MDA

MI1

DCK
LE
DACL
DACR
CD

GEW9-2

WAVE

ROM

32M

A21

A21

A0..20
D0..15

A0..20
D0..15

IC5

GEW9-2

IC4

IC26

11.2896MHz

IC8

IC9

WAVE

ROM

32M

IC6

IC7

IC11IC10

28CA1-8812237

DISASSEMBLY PROCEDURE

P-200

5

1 Opening Control Panel Unit

Remove the four (4) screws marked [240]
located under the keybed. (Fig. 1)

* Lift the control panel unit from the front and

pass strings through two side plates and both
ends of the keybed, as shown in the figure so
that hinges are not damaged. (Fig. 2)

CAUTION:MAKE SURE THAT THE
UPPER CASE IS SECURE.

[

240

]

[

240

]: Pan Head Screw PW 5.0 x 25 MFZN2BL(VB919400)

(Fig. 1)

(Fig. 2)

Bottom side

Strings

Control panel unit

Keybed

P-200

6

2 DM Circuit Board

2-1 Open the control panel unit. (see procedure 1)
2-2 Remove the four (4) screws marked [920A]. The

DM circuit board can then be removed. (Fig. 3)
* Lithium battery is not a part of DM circuit

board. When you replace the DM circuit
board, remove the lithium battery and install
it in the new circuit board.

3 PN1 Circuit Board

3-1 Open the control panel unit. (see procedure 1)
3-2 Remove the nine (9) screws marked [920B] and

one(1) screw marked [920C]. The PN1 circuit
board can then be removed. (Fig. 3)

4 PN2 Circuit Board

4-1 Open the control panel unit. (see procedure 1)
4-2 Remove the DATA ENTRY knob.
4-3 Remove the five (5) screws marked [920D]. The

PN2 circuit board can then be removed. (Fig. 3)

5 PN3 Circuit Board

5-1 Open the control panel unit. (see procedure 1)
5-2 Remove the VOLUME knob.
5-3 Remove the two (2) screws marked [920E]. The

PN3 circuit board can then be removed. (Fig. 3)

6 PN4 Circuit Board

6-1 Open the control panel unit. (see procedure 1)
6-2 Remove the three EQUALIZER knobs.
6-3 Remove the one(1) screw marked [920C] and

three (3) screws marked [920F]. The PN4 circuit
board can then be removed. (Fig. 3)

7 LCD Assembly

7-1 Open the control panel unit. (see procedure 1)
7-2 Remove the three (3) screws marked [920G]. The

LCD assembly can then be removed. (Fig. 3)

8 MA60 assembly

8-1 Open the control panel unit. (see procedure 1)
8-2 For U.S. model: Before removing the MA60

assembly, it is necessary to remove the MA
cover by removing the four (4) screws marked
[170A]. (Fig. 3)

8-3 Remove the four (4) screws marked [170B]. The

MA60 assembly can then be removed. (Fig. 3)

9 FU60P Circuit Board

9-1 Open the control panel unit. (see procedure 1)
9-2 For U.S. model: Before removing the FU60P

circuit board, it is necessary to remove the FU
cover by removing the four (4) screws marked
[170C]. (Fig. 3)

9-3 Remove the four (4) screws marked [190A]. The

FU60P Circuit Board can then be removed. (Fig. 3)

P-200

7

10 Power Transformer

10-1 Open the control panel unit. (see procedure 1)
10-2 Remove the four (4) screws marked [220]. The

power transformer can then be removed. (Fig. 3)

11 Speakers

11-1 Open the control panel unit. (see procedure 1)
11-2 Remove the four (4) screws marked [4]. The

speaker can then be removed. (Fig. 3)
* The right and left speakers can be removed in

the same manner.

(Fig. 3)

Wheel assembly

HP assembly

[

930B

]

[

930A

]

Power switch

Left speaker

[

930A

]

[

960

]

Right speaker

Control panel unit

[4]

[

200

]

Keyboard assembly

Power transformer

FU cover

[

210

] [

200

] [

200

][

200

][

210

][

200

]

FU60P

MA60 assembly

MA cover

Jack unit

[4]

[

920A

]

[

920G

][

920D

][

920E

]

[

220

]

[

190B

] x 8

[

190A

]

x

4

[

170B

] x 4

[

170A

] x 4

[

920B

] x 9 [

920F

]

[

920C

]

[

170C

] x 4

PN3 PN2 PN4DM

LCD assembly

PN1

[920A-G]: Bind Head Tapping Screw-B 3.0 x 6 MFZN2Y (EP600130)

[170]: Bind Head Tapping Screw-1 3.5 x 12 MFZN2BL (EP030340)
[190]: Bind Head Screw 3.0 x 8 MFZN2Y (VD976600)
[220]: Bind Head Screw 4.0 x 12 MFZN2Y (EG340030)

[4]: Bind Head Tapping Screw-P 4.0 x 30 MFZN2Y (VZ893400)

[930]: Bind Head Tapping Screw-B 3.0 x 8 MFZN2BL (EP600190)
[960]: Bind Head Tapping Screw-B 4.0 x 8 MFZN2Y (EP640410)

Battery VN103500

VN103600(Battery holder for VN103500)

Notice for back-up battery removal
Push the battery as shown in figure,
then the battery will pop up.

Druk de batterij naar beneden zoals
aangeven in de tekening de batterij
springt dan naar voren.

Battery

Battery holder

P-200

8

[

230b

]

[

230b

]: Hexagonal Nut 12 x 14 x 2 MFZN2BL (VB508600)

Earth plate

U-shaped

HP

MJ

(Fig. 4) (Fig. 5)

12 Wheel Assembly

12-1 Open the control panel unit. (see procedure 1)
12-2 Remove the four (4) screws marked [930A]. The

wheel assembly can then be removed. (Fig. 3)

13 Power Switch

13-1 Open the control panel unit. (see procedure 1)
13-2 Remove the two (2) screws marked [960]. The

power switch can then be removed. (Fig. 3)

13-3 Remove the push knob from the power switch.

14 HP Circuit Board

14-1 Open the control panel unit. (see procedure 1)
14-2 Remove the two (2) screws marked [930B]. The

HP assembly can then be removed. (Fig. 3)

14-3 Remove the nut marked [230b] and remove the

holder from the HP circuit board. (Fig. 4)

15 MJ Circuit Board

15-1 Open the control panel unit. (see procedure 1)
15-2 Remove the eight (8) screws marked [190B].

The JACK unit can then be removed. (Fig. 3)

15-3 Remove the eight (8) U-shaped holders and

remove the earth plate from the MJ circuit
board. (Fig. 5)

P-200

9

16 Keyboard Assembly

16-1 Open the control panel unit. (see procedure 1)
16-2 Remove the nine (9) screws marked [200] and

two (2) screws marked [210]. The keyboard
assembly can then be removed. (Fig. 3)
* When taking the keyboard assembly out of the

main unit, slide it backward and hold it in the
middle. Lift the keyboard assembly from the
front and take it out of the main unit as shown
in the figures. (Fig. 6 and Fig. 7)

* Do not hold the keyboard by the ends.

17 Disassembling the Keyboard

* After inserting a round stick (Rod:TX000670)

between the frame and keys, remove the
circuit boards. (Fig. 8)

17-A Take the keyboard assembly out of the main

unit. (see procedure 16)

17-B Remove the GH-D SW (L) circuit board by

removing the seven (7) screws marked [260A].
(Fig. 9)

17-C Remove the GH-D SW (H) circuit board by

removing the ten (10) screws marked [260B].
(Fig. 9)
* Keys can be removed without removing the

circuit boards.

* After removing the GH-D SW (L) and GH-D

SW (H) circuit boards, and the rubbers can
then be removed.

(Fig. 6) (Fig. 7)

Keyboard assembly

Keyboard assembly

P-200

10

17-D Insert a thin plate between the white keys, near

the triangle mark around the fulcrum of the key,
and press down the stopper marked [A] to
remove the key. (Fig. 8, Fig. 10 and Fig. 11)
* Take care not to damage the key spring when

removing a key.
* A black key can be removed after the white
keys on either side have been removed.

17-E After a key has been removed, push a key spring

down once to take it out of the hook. (Fig. 12)
Place the keyboard assembly upside-down and
peel the stopper away. Then hammer of the
white key can then be removed. (Fig. 13)

(Fig. 11) (Fig. 12)

(Fig. 9)(Fig. 10)

(Fig. 8)

[

260A

]

[C]

[D]

[B]

[

260B

]

[

260

]: Bind Head Tapping Screw-P 3.0 x 10 MFZN2Y

(VT413400)

Keyboard assembly

White key

Thin metal plate etc

GH-D SW(L)

GH-D SW(H)

Insert a round
stick before removing
circuit boards.

Spring

Spring

Hook

[A]

Rod (TX000670)

P-200

11

18 Assembling the Keybed

18-A Place the keyboard assembly upside-down,

insert a hammer assembly into the frame, and
put the stopper on. (Fig. 14)
* There are four (4) weights of hammers.

18-B Place the keyboard assembly rightside up. Fix

key springs on the frame by setting one at each
slit and pushing down once on each key?
spring?. (Fig. 14 and Fig. 15)
* Be careful of the direction of the spring.

18-C After a key has been fit to part [F] and key

guide, make sure that the spring is fixed to the
key and then press down part [E] of the key.
(Fig. 16)

18-D Tighten the seven (7) screws marked [260A] to

fix the GH-D SW (L) circuit board. (Fig. 9)

18-E Tighten the ten (10) screws marked [260B] to

fix the GH-D SW (H) circuit board. (Fig. 9)
* Install the circuit boards in the keyboard

assembly so that the hooks hold it as shown in
figure 17.

(Fig. 13)

Hammer, white key

Stopper (L88)

(Fig. 14) (Fig. 15)

Spring

Frame

Frame

Hook

Hammer, white key

Stopper (L88)

up

P-200

12

19 Main Unit

19-1 Remove the four (4) knob bolts. (Fig. 18)
19-2 Then, carefully lift the main unit up from the

side boards and slide it toward the back. Next,
raise it, taking care not to pinch your fingers.
(Fig. 19)

CAUTION: WATCH YOUR FINGERS
WHEN DOING THIS!!

(Fig. 16) (Fig. 17)

Keyboard assembly : bottom side

White key

[E]

Spring

Key guide

[F]

GH-D SW(L)

GH-D SW(H)

(Fig. 18) (Fig. 19)

Knob bolt

Knob bolt

P-200 P-200

Key board stand

LP-3

Key board stand
LP-3

LSI PIN DESCRIPTION

P-200

13

PIN
NO.

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

I/O

O
O

I
I
I
I
I
I
I
I

O
O

O

I
I

O

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
I/O
I/O

O
O
O
O
O
O
O
O

O
O
O
O

PA6
PA7

VCC

PB0
PB1
PB2
PB3
PB4
PB5

PB6//DREQ0
PB7//DREQ1

/RESO

VSS
P90/TXD0
P91/TXD1
P92/RXD0
P93/RXD1
P94/SCK0
P95/SCK1

P40/D0
P41/D1
P42/D2
P43/D3

VSS

P44/D4
P45/D5
P46/D6
P47/D7

D8

D9
D10
D11
D12
D13
D14
D15

VCC

A0

A1

A2

A3

A4

A5

A6

A7
VSS

A8

A9
A10
A11

NAME

Port A
Address bus
Power supply

Port B

Reset
Ground
Transmit data (MIDI OUT)
KSN-ACK
Receive data (MIDI IN)
KSN-RX
Port 9
Port 9

(Ground)

Data bus

Power supply

Address bus

(Ground)

FUNCTION

PIN

NO.

51
52
53
54
55
56
57
58
59
60
61
62
63
64
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

I/O

O
O
O
O
O
O
O
O

I
I
I

O

I
I
I

I

O
O

O
O
O

I
I
I

I
I
I
I
I
I
I
I
I

O
O
O
O
O

I
I

I
O
O
O

A12
A13
A14
A15
A16
A17
A18
A19

VSS
P60//WAIT
P61//BREQ
P62//BACK

Ø

/STBY

/RES

NMI

VSS

EXTAL

XTAL

VCC

/AS

/RD

/HWR
/LWR

MD0
MD1
MD2

AVCC

VREF
P70/AN0
P71/AN1
P72/AN2
P73/AN3
P74/AN4
P75/AN5
P76/AN6
P77/AN7

AVSS

P80
P81//CS3
P82//CS2
P83//CS1
P84//CS0

VSS

PA0

PA1

PA2

PA3

PA4

PA5

NAME

Address bus

Ground
Port 6
Øout

Stand-by mode signal
Reset
Non-maskable interrupt
Ground
Clock
Clock
Power supply
Address strobe
Read strobe
Write strobe (High)
Write strobe (Low)

Mode select
Analog power supply

Reference voltage
Analog data input (EQ)
Analog input (EQ)
Analog data input
Analog input (CS)
Analog data input (BEND)
Analog input (MOD)
Analog input (FC)
Analog input (BAT)
Analog ground
Port 8

Chip select

Ground

Port A

FUNCTION

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20

I/O

O
O
O
O
O
O

I
I
I
I
I
I
I
I
I
I
I
I
I

O

BK5
BK4
BK3
BK2
BK1

BK0
MK15
MK14
MK13
MK12
MK11
MK10
MK05
MK04
MK03
MK02
MK01
MK00

XIN

XOUT

NAME

Key block (open drain)

1st make contact

2nd make contact

Crystal osc. input (4 MHz)
Crystal osc. output (4 MHz)

FUNCTION

PIN
NO.

21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

I/O

O

I
I
I
I
I

I
O
O
O
O
O
O
O
O
O

GND

VDD

SO
ACK
XCK

/IC

TST1
TST2

XCKINH

BK14
BK13
BK12
BK11
BK10

BK9
BK8
BK7
BK6

GND

VDD

NAME

Ground
Power supply
Serial data
Acknowledge/Mode select
Clock for serial data
Initial clear
Test mode
(L, L: normal mode, others: test)
Inhibit of serial clock

Key block (open drain)

Ground
Power supply

FUNCTION

HD6413002FP16 (XQ375A00) CPU <H8/3002>

YMZ702-D (XR632A00) KSN2 (Key Scanner)

P-200

14

PIN
NO.

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

I/O

I
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
I/O
I/O

O
O
O
O
O
O
O
O

O
O
O
O
O
O
O
O
O
O
O

I

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

Vss

A0
A1
A2
A3
A4

A5
D0
D1
D2
D3
D4
D5
D6
D7
D8

Vss

D9

D10
D11
D12
D13
D14

D15
/IRQ
MA0
MA1
MA2
MA3
MA4
MA5
MA6

Vss
MA7
MA8
MA9

MA10
MA11
MA12
MA13
MA14
MA15
MA16
MA17

MAE

V

DD

MA18
MA19
MA20
MA21
MA22

/MWR

BDIR

MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9

MD10

NAME

Ground

Address bus

Data bus

Ground

Data bus

Interrupt request

External memory address bus

Ground

External memory address bus

Memory address enable
Power supply

External memory address bus

Memory write control
Data bus direction

External memory data bus

FUNCTION

YMW259 (XJ752C00) GEW9-F (AWM Tone Generator & Digital Filter)

PIN
NO.

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

I/O

I/O
I/O
I/O
I/O
I/O

I
I

O

I

O
O

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
O

I

I
O
O
O
O
O
O
O

I

I
O
O
O
O

I

I

I

I
O

I

Vss
MD11
MD12
MD13
MD14
MD15

/IC

SYI

SYO

CKMI

CKMO

V

DD

XOUT

XIN

Vss

RA0
RA1
RA2
RA3
RA4
RA5
RA6
RA7
RA8

RA9
RA10
RA11
RA12
RA13
RA14

RD0

RD1

Vss
RD2
RD3
RD4
RD5
RD6
RD7

/CE

/OE
/WE
TP1
TP0
DCK

LE
MCK64
MCK32

MOA
MOB
MOC

V

DD

MI1

MI2
DRA
DRB
DLA
DLB

/CS

/RD
/WR
8/16

CDO

A-1

NAME

Ground

External memory data bus

Initial clear
Synch. pulse input
Synch. pulse output
Clock 12.8 MHz input
Clock 12.8 MHz output
Power supply

Clock
Ground

not used

not used
Ground

not used

Chip enable
Output enable
Write enable

Test pin
DAC clock

Latch enable
Clock 6.4 MHz output
Clock 3.2 MHz output

MEL format data output
Power supply

MEL format data input
R-channel serial data output
L-channel serial data output

Chip select
Read control
Write control
Bus width 8 bit/16 bit
Control data output
Address bus

FUNCTION

P-200

15

PIN
NO.

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

I/O

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

I/O

I

I
O
O

I

I
O

I
O

I
O

I
O
O

O
O
O
O
O
O

MDAT9
MDAT8
MDAT7
MDAT6
MDAT5
MDAT4
MDAT3
MDAT2
MDAT1

Vss

MDAT0

SI1

SI0
SO1
SO0

XMD

XCLK

/TO

/CRS

CDO

CDI

TIM1

/OE
R/W

MAD15

V

DD

MAD14
MAD13
MAD12
MAD11
MAD10

MAD9

NAME

External RAM data bus

(Ground)

Data input
Data output

ACIA synch. mode
ACIA clock
Timer output
CDI reset
Command output
Command input
Timer 1
Output enable
Read/write

(Power supply)

External RAM address bus

FUNCTION

PIN
NO.

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

I/O

O
O
O
O
O
O
O
O
O

I
I

O

I
I

O

I
O
O
O
O

I

I
O
O

I/O
I/O
I/O
I/O
I/O
I/O

MAD8
MAD7
MAD6
MAD5
MAD4
MAD3
MAD2
MAD1
MAD0

Vss

/TSTR

/TST1

CLKM

SYW

CLK

/CE

/IC
MDTS4
MDTS3
MDTS2
MDTS1

MDSI1

MDSI0
MDSO1
MDSO0

V

DD

MDAT15
MDAT14
MDAT13
MDAT12
MDAT11
MDAT10

NAME

External RAM address bus

Ground
Test R
Test 1
1/2 clock
Synch. signal input
Clock
External RAM chip enable
Initial clear

MOD data test

Wave add data input
Wave add data input

Power supply

External RAM data bus

FUNCTION

PIN
NO.

1
2
3
4
5
6
7
8
9

10

I/O

I
I

I

DATA

CLK

NC

+VDD

D.COM

-VDD
L.E
NC
NC
NC

NAME

Data input
Clock

Power supply (+5 V) Digital
Digital ground
Power supply (-5 V) Digital
Latch enable

FUNCTION

PIN
NO.

11
12
13
14
15
16
17
18
19
20

I/O

I/O

O

I/O
I/O

+VCC

BPO-DC

NC

LOUT
A.COM2
A.COM1

SERVO-DC

NC

REF-DC

-VCC

NAME

Power supply (+5 V)
Bipolar de-couple

Output current
Analog ground
Analog ground
Servo de-couple

Reference de-couple
Power supply (-5 V)

FUNCTION

YSS208 (XI816A00) DSPN (Digital Signal Processor)

PCM1702U (XP551A00) DAC (Digital to Analog Converter)

PIN
NO.

1
2
3
4
5
6
7
8

I/O

I

O

I
I
I

O

Vss

SI0
SO0
BC0

WC0

SI2
SO2
Vdd

NAME

Ground
Serial data input 0
Serial data output 0
Bit clock channel 0
Word clock channel 0
Serial data input 2
Serial data output 2
Power supply

FUNCTION

PIN
NO.

9
10
11
12
13
14
15
16

I/O

I
I
I
I
I
I

O

I

M0
M1
M2
M3

WC1

BC1
SO1

SI1

NAME

Mode select

Word clock channel 1
Bit clock channel 1
Serial data output 1
Serial data input 1

FUNCTION

YM3422B (XE862B00) ES1 (Format Converter)

P-200

16

IC BLOCK DIAGRAM

Q

DCK

OE

Q

DCK

OE

Q

DCK

OE

Q

DCK

OE

OUTPUT

CONTROL

1Q

1D

2D

2Q

3Q

3D

4D

4Q

GND

1 20

2 19

3 18

4 17

5 16

6 15

7 14

8 13

9 12

10 11

HD74AC32FPEL (XK452A00)
Quad 2 Input OR

SN74HC132NSR (XL112A00)
Quad 2 Input NAND

1

2

31A1Y

42A

52B

62Y

7GND

1B

14

13

12

Vcc

4A

11 4Y

10 3B

93A

83Y

4B

1

2

31A1Y

42Y

52A

62B

7GND

1B

14

13

12

VDD

4A

11 4Y

10 3Y

93B

83A

4B

SN74HC139NSR (XC727A00)
Dual 2 to 4 Demultiplexer

1

2

3

4

5

6

7

1G

1A

1B

1Y0

1Y1

1Y2

1Y3

A

G

B

Y0

Y1

Y2

Y3

16

15

14

13

12

11

10

Vcc

2G

2A

2B

2Y0

2Y1

2Y2

8

GND

9

2Y3

Y2

Y3

Y1

Y0

B

A

G

µ PC4570HA (XB247A00)
Dual Operational Amplifier

SN74HC374ANSR (XQ042A00)
Octal 3-State D-FF

µ PC4570G2 (XF291A00)
Dual Operational Amplifier

TC7S04F (XM182A00)
Inverter Gate

VCC

8Q

8D

7D

7Q

6Q

6D

5D

5Q

CLOCK

Q

DCK

OE

Q

DCK

OE

Q

DCK

OE

Q

DCK

OE

1

2

3

5

4

NC

GND

Vcc

OUT Y

IN A

1A2 3 4 5 6 7 8 9

+V -IN -V

+INOUT

AAA

+V-IN

+IN OUT

BBB

-

+

B

-

+

1

2

3

4-V

8

7

6

5

Output A +V

Non-Inverting

Input A

-DC Voltage Supply

+DC Voltage
Supply

Output B

Inverting
Input B

Non-Inverting
Input B

Inverting

Input A

+-

+-

to LCD assembly

to MA60-CN4 to MJ-CN1 to Keyboard

Component side Pattern side

to PN2-CN21 to PN1-CN1

to PN1-CN2

to PN3

-CN31

to MJ

-CN5

to MJ

-CN2

to PN4

-CN41

to PN2

-CN22

to Wheel

assembly

2NA-VZ88550

1

CIRCUIT BOARDS

P-200

17

DM Circuit Board

Note : See parts list for details of circuit board

component parts.

STORE PERF. A to DM-CN7 to DM-CN8

CS

DATA ENTRY

PS1

-1/NO

PS2

+1/YES

SPLIT

BALANCE

TRANSPOSE

DETUNE

MIDI

PAGE

CONTRAST

to DM-CN1 to DM-CN6

VOLUME to DM-CN9 EQUALIZER

to DM-CN13

to MJ-CN3

Component side

Component side Component side

Component side

2NA-VT36040

0

EDIT PREF. B VOICE PIANO1

SYSTEM

PIANO2

MIDI FILTER

PIANO3

PC TABLE

PIANO4

CHANNEL

E. PIANO1

LOCAL

E. PIANO2

CS FC

E. PIANO3PSVIBES

NAME

ORGAN1

ORGAN

COMBINATION

ORGAN2

PB MW

STRINGS

KBD SENS

BASS

INT.EQ

REVERB

EFFECT
ROOM

CHORUS

SYMPHONIC

TREMOLO

STAGE
HALL

MODULATION

LOW MIDDLE HIGH

anode cathode

P-200

18

PN1 Circuit Board

PN2 Circuit Board

PN3 Circuit Board PN4 Circuit Board

LED installing

Note : See parts list for details of circuit board

component parts.

P-200

19

PHONES

Earth wire
VG60540

to MJ-CN7

Component side

Component side

HP : 2NA-VT83360

MJ : 2NA-VT35990

0

IN OUT

MIDI

THRU FOOT CONTROLLER SOFT SOSTENUTO SUSTAIN

to DM-CN3to DM-CN5

to MA60-CN6

to DM-CN10

to SP-Rto SP-Lto PN3-CN32

to MA60-CN5

to HP-CN1

L/MONO

OUTPUT

R L/MONO

INPUT SPEAKER

R ON OFF

MJ Circuit Board

HP Circuit Board

Note : See parts list for details of circuit board

component parts.

P-200

20

Component sideComponent side

MA60 : 2NA-VT14420

1

FU60P : 2NA-VT45890

0

to Power Transformer
secondary

to Power Transformer Primary to POWER SW

R1, R2, C2, C14, C15, DB3: not installed to DM-CN11 AC IN

to MJ-CN4

to MJ-CN6

CAUTION: REPLACE WITH SAME TYPE

5A 125V FUSE.

ATTENTION: UTILISER UN FUSIBLE DE

RECHANGE DE MÉME TYPE DE 5A 125V

NOTE : The symbol ( ) shows Slow operating fuse.

5A 125V

STK401-XXX

Insulation sheet (VJ834500)

IC1

IC5

TR1IC3.4

VT740000

Spacers

VT443500

MA60 Circuit Board FU60P Circuit Board

Note : See parts list for details of circuit board

component parts.