Pioneer Portatone psr-280 User manual

SERVICE MANUAL

PK 001641

HAMAMATSU, JAPAN

1.43K-257 Printed in Japan '00.06

CONTENTS

SPECIFICATIONS···································································· 3

PANEL LAYOUT······································································· 4

CIRCUIT BOARD LAYOUT······················································ 6

BLOCK DIAGRAM···································································· 8

DISASSEMBLY PROCEDURE················································· 9

LSI PIN DESCRIPTION·························································· 12

IC BLOCK DIAGRAM ····························································· 14

CIRCUIT BOARDS································································· 15

TEST PROGRAM··································································· 24

DATA INITIALIZATION··························································· 26

MIDI IMPLEMENTATION CHART·········································· 27

PARTS LIST

OVERALL CIRCUIT DIAGRAM

This document is printed on chlorine free (ECF) paper with soy ink.

PSR-280

PSR-282

PSR-280/PSR-282

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.

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.

WARNING

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

originally installed.

SPECIFICATIONS

PSR-280/PSR-282

Keyboards

• 61 standard-size keys (C1 - C6), with Touch Response and

Dynamic Filter.

Display

• Large multi-function LCD display (backlit)

Setup

• STANDBY/ON

• MASTER VOLUME: MIN - MAX

Panel Controls

• OVERALL (L, R), SONG, VOICE, STYLE, PORTABLE

GRAND, DJ, METRONOME, [0]-[9], [+](YES), [-](NO),

DEMO, TOUCH, HARMONY, Dict., L, R, TEMPO/TAP

Voice

• 118 panel voices + 10 Drum Kits + 128 GM Voices

• Polyphony: 32

• Voice Set

Auto Accompaniment

• 100 styles

• Accompaniment Control: ACMP ON/OFF, SYNC STOP,

SYNC START, START/STOP,

INTRO/ENDING, MAIN A/B(AUTO

FILL)

• Fingering : Multi fingering

• Accompaniment Volume

Yamaha Educational Suite

• Dictionary

• Lesson 1-4

One Touch Setting

• Voice (for each style or song)

Overall controls

• Transpose

• Tuning

• Accompaniment Volume

• Song Volume

• Metronome Volume

• MIDI

• Reverb

• DSP

• Harmony

• Grade

• Talking

Effects

• Reverb: 8 types

• DSP: 37 types

• Harmony: 26 types

Song

• 100 Songs + 5 User Songs

• Song Clear, Track Clear

Recording

• Song

User Song: 5 Songs

Real Time Recording

Recording Tracks: 1, 2, 3, 4, 5, CHORD

MIDI

• Clock

• Bulk Send/Receive

• Initial Send

Auxiliary jacks

• PHONES/OUTPUT, DC IN 10-12 V, MIDI IN/OUT, SUSTAIN

Amplifier

• 3.0 W + 3.0 W

Speakers

• 12 cm x 2 + 3 cm x 2

Power Consumption

• 15 W (when using PA-3B power adaptor)

Power Supply

• Adaptor: Yamaha PA-3B AC power adaptor

• Batteries: Six “D” size, SUM-1, R-20 or equivalent batteries

Dimensions (W x D x H)

• 933 x 370 x 129 mm (36-3/4" x 14-5/8" x 5-1/6")

Weight

• 5.5 kg (12 lbs., 2 oz.)

Supplied Accessories

• Music Stand

• Owner’s Manual

• Song Book

Optional Accessories

• Headphones: HPE-150

• AC power adaptor: PA-3B

• Footswitch: FC4, FC5

• Keyboard stand: L-2L, L-2C

PSR-280/PSR-282

PANEL LAYOUT

3 4

7 7

2423

222120

1716151413

1Power switch ([STANDBY/ON])

2[MASTER VOLUME] dial

3[TOUCH] button

4[HARMONY] button

5[Dict.] (DICTIONARY) button

6LESSON [L] (Left) and [R] (Right) buttons

7Overall (left, right) buttons

8[DEMO] button

9[Piano] button

10 [METRONOME] button

11 [DJ] button

12 Numeric keypad, [+/YES] and [-/NO] buttons

13 [ACMP ON/OFF] / [A-B REPEAT] button

14 [SYNC STOP] button

15 [SYNC START] / [ PAUSE] button

16 [START/STOP] button

17 [INTRO/ENDING] / [ REW] button

18 [MAIN/AUTO FILL] / [ FF] button

19 [TEMPO/TAP] button

20 [SONG] button

21 [STYLE] button

22 [VOICE] button

23 [SONG MEMORY] buttons

24 REGISTRATION MEMORY buttons

Front Panel

25 26 27 28

343537

38 39 36

3140 41 32

25 MIDI IN, OUT terminals

26 SUSTAIN jack

29 Indicators

30 Overall indicator

31 Notation

32 Keyboard

33 Measure

34 Beat marks

35 Chord

27 PHONES/OUTPUT jack

28 DC IN 10-12V jack

36 Song/Voice/Style name and number, Tempo

37 Song track indicators

38 Touch indicator

39 Harmony indicator

40 Sync Stop indicator

41 Accompaniment On indicator

PSR-280/PSR-282

Rear Panel

Display

CN102

CN501CN101

390 WH100 WH050WH060WH040

WH500 380

380WH300 WH400380

WH200

WH500WH010

L70WH020

L70WH400WH300

WH040

WH050WH030

LCD unit Upper case assembly

Speaker R (Tweeter)

Speaker R (Woofer)

Speaker L (Tweeter)

Speaker L (Woofer)

Keyboard assembly

PN(PNR) PN(PNC)

LCD

PN(PNL)

PN(PW)

MK-LMK-H

MKS3

PN(VR)

CN911

CN910

CN101

CN912

CN820

CN810

CN801

CN601

CN701

CN702

CN601

CN501

CN911

CN801

CN1

CN703

CN706

CN705

CN701 CN704

2NC-V524070 3

PSR-280/PSR-282

CIRCUIT BOARD LAYOUT

PSR-280/PSR-282

PN(PNR)-CN701 DM-CN702 14PDM-PN-R

Connector AssemblyPart No.

(V539010)

Location Destination Remarks

WH010

PN(PNR)-CN703 PN(PNL)-CN704 9PPN-R-PN-L(V539100)

WH020

PN(PNL)-CN705 PN(PNC)-CN706 4PPN-L-PN-C(V539110)

WH030

PN(VR)-CN501 DM-CN501 4PDM-VR(V539030)

WH040

PN(VR)-CN801 AM-CN801 4PAM-VR(V539060)

WH050

PN(PW)-CN911 AM-CN911 4PAM-PSW(V539040)

WH060

AM-CN101 DM-CN101 5PDM-AM1(V538990)

WH100

AM-CN601 DM-CN601 6PDM-AM2(V539000)

WH200

AM-CN810 SPEAKER R 2PAM-SP-R(V539140)

WH300

SPEAKER R

AM-CN820 SPEAKER L 2PAM-SP-L(V560490)

WH400

SPEAKER L

LCD-CN1 DM-CN701 12PDM-LCD(V538980)

WH500

LCD UNIT AM-CN912 2PAM-LCD(V539120)

L70

POWER SUPPLYAM-POWER(V539130)

380

KEYBOARD ASSEMBLY

DM-MKS(V616910)

390

DM-CN102 6P

AM-CN910 2P

* Connector assembly listed above are not available as service parts.

Keyboard SW MATRIX

8MHz

RESET SWX00

4.2V

CPU

CL1 IC1

LCD

DRIVER SW MATRIX STANDBY/ON

IC701

LCD

DISPLAY

LD701

LCD

BUCKLIGHT

CN1

CN102 CN701 CN702

CN701 CN911

CN911

CN1

TXD1, LSIIC, RXD1, SCLKI PAD0~5, PDT0~7, 11, 12

C1~C16,

S1~S40

S-BUS D0~15, A0~20

C-BUS D0~15, A0~20

IC103

153 14

312 1

SW60

156

158, 163, 164

5~7

IC101

RXD0

TXD0

ADIN

CLOCK

DAC

8.4672MHz

CL001

DO0, WCLK, QCLK

IC501 LPF

POWER

AMP PHONES/

OUTPUT

IC502

IC800

IC810

IC820

1521

147

CN101

CN601

CN101

CN601

JK620

JK630

JK900

JK640

CN820 1

CN810

IC820

IC810

3W x 2

CN501

CN801CN801

MASTER

VOLUME

MIDI I/F

IC601

+3.3V REG

Tweeter L

SUSTAIN

MIDI IN

MIDI OUT

DC IN

10-12V

BATTERIES

1.5V x 6

Tweeter R

SP-L 4

SP-R 4

IC102

+5V REG

IC930

+5V REG

IC920

+5V REG

IC940

+3.3D

+5D

+5V

8M ROM

PROGRAM

IC202

1M SRAM

IC302

1M SRAM

IC301

ROM2

32M ROM

WAVE

IC201

ROM1 +5V

CN910

MKS3

PN(PNL, PNC, PNR)

LCD PN(PW)

PN(VR) 28CA1-8816895

PSR-280/PSR-282

BLOCK DIAGRAM

DM AM

MKS3

PN(PW)

Keyboard assembly [A]

[240]

Lower shield box

[260B][280][250C]

[260B] [250A] [250A] [30]

[260B] [250A]

[250B][250A]

[270B]

[270B] [270B]

[250C]: Bind Head Tapping Screw-P 3.0 x 8 MFZN2Y (EP600280) [280]: Bind Head Tapping Screw-P 4.0 x 8 MFZN2BL (VB931600)

(Fig. 2)

Speaker R

(Tweeter)

Speaker R

(Woofer)

[250C] [280] [250C]

Speaker L

(Tweeter)

Speaker L

(Woofer)

[250C]

+– +–

Battery cover assembly[260A] Lower case assembly

[260A]

[260A][260A]

[270A] [270A]

[260A]

[260A]: Bind Head Tapping Screw-P 3.0 x 12 MFZN2Y (EP600300) [270A]: Bind Head Tapping Screw-P 3.0 x 25 MFZN2Y (VK228100)

(Fig. 1)

DISASSEMBLY PROCEDURE

PSR-280/PSR-282

1. Lower Case Assembly

1-1 Remove the battery cover assembly. (Fig. 1) 1-2 Remove the fifteen (15) screws marked [260A] and two

(2) screws marked [270A]. The lower case assembly can

then be removed. (Fig. 1)

2. Circuit Board and Units on the Panel Asseembly

After removing the lower case assembly. (See Procedure 1.)

Remove the following screws, each circuit board and can be removed. (Fig. 2)

Circuit Board and Unit

PN(PW)

MKS3

Keyboard Assembly

[260B]

[240]

[250A]

[250B]

[A]

[30]

[270B]

Bind Head Tapping Screw-P 3.0 x 12 MFZN2Y (EP600300)

Bind Head Tapping Screw-B 3.0 x 8 MFZN2Y (EP600250)

Bind Head Tapping Screw-P 3.0 x 8 MFZN2Y (EP600280)

Push Knob (VQ218800)

Bind Head Tapping Screw-P 3.0 x 8 MFZN2Y (EP600280)

Bind Head Tapping Screw-P 3.0 x 25 MFZN2Y (VK228100)

Ref. No. Screw QTY

PN(VR)LCD

PN(PNL)

PN(PNC)

PN(PNR)

[250D][L50]

[250H] [250E]

[250E]

[250E][250F] [250F]

[250H]

[250G]

[250H]

[250G]

[250H]

LCD unit

[250]: Bind Head Tapping Screw-P 3.0 x 8 MFZN2Y (EP600280) [L50]: Bind Head Tapping Screw-P 3.0 x 8 MFZN2Y (EP600280)

(Fig. 3)

PSR-280/PSR-282

3. Speakers

3-1 Remove the lower case assembly. (See Procedure 1.)

3-2 Woofer:

Remove the four (4) screws marked [280]. The right and

left speakers (woofer) can then be removed. (Fig. 2)

3-3 Tweeter:

Remove the two (2) screws marked [250C]. The right and

left speakers (tweeter) can then be removed. (Fig. 2)

4. PN(VR), PN(PNL) Circuit Boards

4-1 Remove the lower case assembly. (See Procedure 1.)

4-2 Remove the AM circuit board. (See Procedure 2.)

4-3 PN(VR) Circuit Board:

Remove the three (3) screws marked [250D]. The PN(VR)

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

4-4 PN(PNL) Circuit Board:

Remove the six (6) screws marked [250E]. The PN(PNL)

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

5. PN(PNC), PN(PNR), LCD Circuit Boards

5-1 Remove the lower case assembly. (See Procedure 1.)

5-2 Remove the DM circuit board. (See Procedure 2.)

5-3 Remove the AM circuit board. (See Procedure 2.)

5-4 PN(PNC) Circuit Board:

Remove the three (3) screws marked [250F]. The PN(PNC)

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

5-5 PN(PNR) Circuit Board:

Remove the eight (8) screws marked [250G]. The PN(PNR)

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

5-6 LCD Circuit Board:

Remove the four (4) screws marked [250H]. The LCD unit

can then be removed. (Fig. 3)

Remove the eight (8) screws marked [L50]. The LCD circuit

board can then be removed. (Fig. 3)

* When re-install the LCD, place it so that the small protrusion

on the LCD faces the inside on the right. (Fig. 4)

6. Disassembling the keyboard assembly

6-1 Remove the keyboard assembly. (See Procedure 2.)

6-2 Remove the two (2) screws marked [30]. The MKS3 circuit

board can then be removed. (Fig. 2)

6-3 Remove the MK circuit board while pressing the fifteen

(15) hooks A inward, and then remove the rubber contact.

(Fig. 5)

6-4 Remove the twenty-one (21) screws marked [140], then

remove the black keys from the lower notes. Afterwards,

remove the white keys DFA and C' and then remove the

white keys CEGB from the higher notes. At this time, lift

the keys from the front and slide them towards you.The

keys can then be removed from the assembly. (Fig. 6)

Conductor side

• LCD unit

Rubber connector

(Fig. 4)

(Fig. 8)

(Fig. 9)

(Fig. 7)

Rubber contact

Hooks B

PSR-280/PSR-282

7. Assembling the keyboard assembly

7-1 Install the white keys CEGB from the lower notes, and

then install the DFA keys and C' key. Afterwards install

the black keys from the higher notes, and tighten the

twenty-one (21) screws marked [140]. (Fig. 6)

7-2 Install the rubber contacts in the assembly while pressing

the keys as shown in Figure 9. Check that the rubber

contact has been firmly placed into position in the area

indicated by the arrow Figure 10.

* When fitting the rubber contacts, raise both ends of the

frame so that do not push the rubber contact up. Install the

MK circuit board in the assembly so that the hooks B hold

it as shown in Figure 11. (Fig. 7, 8, 9)

White Keys

Rubber contact

Hooks A

Black Keys

(Fig. 5)

MK Black Keys White Keys DFA

White Keys CEGB

White Key C'

[140]

[140]: Bind Head Tapping Screw-P 3.0 x 16 MFZN2Y (EP600310) or

[140]: Bind Head Tapping Screw-P 3.0 x 16 MFZN2BL (VB205200) or

[140]: Bind Head Tapping Screw-P 3.0 x 16 MFZN2B (VS756700)

(Fig. 6)

NO. I/O FUNCTIONNAME PIN

NO. I/O FUNCTIONNAME

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

SMD6

SMD1

SMD14

VCC35

GND36

SMD8

SMD7

SMD0

SMD15

SOE

SWE

SRAS

SCAS

REFRESH

CS0

SMA0

SMA16

VCC49

GND50

SMA1

SMA15

SMA2

SMA14

SMA3

SMA13

SMA4

SMA12

SMA5

GND60

VCC61

SMA11

SMA6

SMA10

SMA7

SMA9

SMA17

SMA8

SMA18

SMA19

SMA20

SMA21

SMA22

SMA23

CMA20

CMA19

VCC77

GND78

CMA18

CMA17

CMA5

CMA6

CMA4

CMA7

I/O

Initial clear

PLL Clock

PLL Control

Power supply

Ground

SWX dual mode

Power supply

Ground

crystal oscillator

SWX separate mode

TEST pin

A/D converter

Power supply

Ground

for MIDI or TO-HOST

for MIDI

Crystal oscillator

Wave memory data bus

Power supply

Ground

Wave memory data bus

read signal

write signal

RAS signal

CAS signal

REFRESH signal

CS signal

Memory address bus

Power supply

Ground

Memory address bus

Ground

Power supply

Memory address bus

Program address bus

Power supply

Ground

Program address bus

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

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

CMA3

CMA8

CMA2

CRD

CMA1

CUB

VCC91

GHND92

CS1

CMA0

CLB

CMA12

CMA11

CMA10

CMA9

GND100

CWE

CMA16

CMA15

CMA14

CMA13

CMD8

CMD7

CMD9

CMD6

CMD10

CMD5

CMD11

CMD4

CMD12

CMD3

CMD13

CMD2

CMD14

VCC119

GND115

CMD1

CMD15

CMD0

CMA21

PDT15

PDT14

PDT13

PDT12

PDT11

PDT10

PDT9

PDT8

VCC133

GND134

PDT7

PDT6

PDT5

PDT4

PDT3

PDT2

PDT1

PDT0

VCA143

GND144

PAD2

PAD1

PAD0

VCC148

GND149

PCS

PWR

PRD

RXD0

RXD1

SCLKI

ADIN

ADLR

DO0

DO1

SYSCLK

VCC161

GND162

WCLK

QCLK

BCLK

SYI

IRQ0

NMI

I/O

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 memory Data bus

Power supply

Ground

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

1/2 clock

Power supply

Ground

for DAC LR clock

1/12 clock

IIS-DAC clock

Synch signal

Interrupt request

HG73C205AFD (XU947C00) SWX00B (Tone Generator) DM: IC101

PSR-280/PSR-282

LSI PIN DESCRIPTION

PSR-280/PSR-282

NO. I/O FUNCTIONNAME PIN

NO. I/O FUNCTIONNAME

/RES

/INT

NUM

VSS

I/O

Reset

Interrupt request

Non-maskable interrupt

Port A

Port B

Ground

D3/TX

D4/RX

D5//CK

D6//INT2

/STBY

TIMER

XTAL

EXTAL

VCC

I/O

Port C

Port D

(Serial data output)

(Serial data input)

(Clock for serial operation)

(Interrupt request 2)

(Standby mode signal)

Timer

Clock

Power supply

HD63B05V0F073P (XR951A00) CPU MKS3: IC1

NO. I/O FUNCTIONNAME PIN

NO. I/O FUNCTIONNAME

S22

S21

S20

S19

S18

S17

S16

S15

S14

S13

S12

S11

S10

Vss

OSC1

OSC2

CLK1

CLK2

Vdd

R/W

DB0

DB1

I/O

Segment signal output for LCD

driving

Ground

Oscillator

Power supply

Data latch clock

Data shift clock

Power supply (+5 V)

Altamated signal for LCD driver outout

Display data interface

Read/write

Enable

Data interface

DB2

DB3

DB4

DB5

DB6

DB7

C10

C11

C12

C13

C14

C15

C16

S40

S39

S38

S37

S36

S35

S34

S33

S32

S31

S30

S29

S28

S27

S26

S25

S24

S23

I/O

Data interface

Common signal output for LCD

driving

Segment signal output for LCD

driving

KS0076BQ-00 (XV226A00) LCD DRIVER LCD: IC701

PSR-280/PSR-282

IC BLOCK DIAGRAM

µPC4570C (XC520A00)

Dual Operational Amplifier

DM: IC502

AM: IC810,820

µPD6379AGR (XR998A00)

D/A Converter

DM: IC501

4-V

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

4LOUT

VDD

Ground

Lch analog

output

Power supply

Shift clock

Serial dat input

L/R clock

Voltage

reference

GND

REF

ROUT

CLK

LRCK

Rch analog

output

2NA-V539790

Component side

Pattern side

to DM-CN701

LCD Circuit Board

CIRCUIT BOARDS

PSR-280/PSR-282

AM Circuit Board (XY426B0) ····················································································· 18

DM Circuit Board (XY036B0) ····················································································· 16

LCD Circuit Board (XY486B0) ··················································································· 15

MK-H Circuit Board (XR565B0) ················································································· 23

MK-L Circuit Board (XR564B0)·················································································· 22

MKS3 Circuit Board (XU878B0)················································································· 22

PN(PNC) Circuit Board (XY361A0)············································································ 18

PN(PNL) Circuit Board (XY361A0) ············································································ 20

PN(PNR) Circuit Board (XY361A0)············································································ 20

PN(PW) Circuit Board (XY361A0)·············································································· 18

PN(VR) Circuit Board (XY361A0) ·············································································· 18

Note: See parts list for details of circuit board component parts.

2NA-V533420

Component side

to HAMMER SENSOR-CN3

DM Circuit Board

from MKS-CN1

from PN(VR)-CN501from LCD-CN701from AM-CN601 from PN(PNR)-CN701 from AM-CN101

PSR-280/PSR-282

2NA-V533420

Pattern side

DM Circuit Board

IC101, IC501, IC301, 302 installation detailed drawing

IC101

character

direction

Pin 1 mark

IC501

character

Pin 1 mark

IC301,302

character

direction

Pin 1 mark

PSR-280/PSR-282

Component side

to Speaker-R

PN(PNC, PW, VR): 2NA-V534590

AM: 2NA-V534600 3

AM Circuit Board

PN(PNC) Circuit Board

PN(PW) Circuit Board

PN(VR) Circuit Board

to Speaker-L from LCD unit

from PN(PNL)-CN705

to DM-CN501

to DM-CN601 to DM-CN101

from Power supply

IN OUT

MIDI SUSTAIN DC IN to-12V

PHONES/

OUTPUT

VOICE

STANDBY/ON

STYLE SONG

MASTER

VOLUME

PSR-280/PSR-282

Pattern side

AM Circuit Board

PN(PNC, PW, VR): 2NA-V534590

AM: 2NA-V534600 3

PN(PNC) Circuit Board

PN(PW) Circuit Board

PN(VR) Circuit Board

PSR-280/PSR-282

PN(PNL, PNR): 2NA-V534590

Component side

to PN(PNC)-CN706

PN(PNL) Circuit Board

PN(PNR) Circuit Board

Overall

HARMONY

Yamaha Education Suite

Dict.

RLESSON L

TOUCH

to DM-CN702

TEMPO/TAP

MAIN/AUTO FILL

REW

INTRO/ENDING

PAUSE

SYNC

START SYNC

STOP

A-B REPEAT

ACMP

ON/OFF

STYLE

SONG

START/STOP

321

654

987

+/YES 0 -/NO DJ Piano

RECORDSONG MEMORY

1AMEMORY12BANK 2345

METRONOME

Portable Grand & DJ

DEMO

Overall

REGISTRATION MEMORY

PSR-280/PSR-282

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