SERVICE MANUAL - go-gddq. · PDF fileSERVICE MANUAL PK 001641 ... service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable

SERVICE MANUAL

PK 001641HAMAMATSU, JAPAN

1.43K-257 Printed in Japan '00.06

CONTENTS

SPECIFICATIONS ···································································· 3PANEL LAYOUT······································································· 4CIRCUIT BOARD LAYOUT ······················································ 6BLOCK DIAGRAM ···································································· 8DISASSEMBLY PROCEDURE················································· 9LSI PIN DESCRIPTION ·························································· 12IC BLOCK DIAGRAM ····························································· 14CIRCUIT BOARDS ································································· 15TEST PROGRAM ··································································· 24DATA INITIALIZATION ··························································· 26MIDI IMPLEMENTATION CHART ·········································· 27PARTS LISTOVERALL CIRCUIT DIAGRAMThis document is printed on chlorine free (ECF) paper with soy ink.

PSR-280

PSR-282

PSR-280/PSR-282

2

WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possiblyother 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 REASONWHAT SO EVER!

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

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

IMPORTANT NOTICEThis manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed thatbasic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood bythe users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personalinjury, destruction of expensive components and failure of the product to perform as specified. For thesereasons, we advise all Yamaha product owners that all service required should be performed by an authorizedYamaha 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, andservice departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable andchanges 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 haveaccumulated 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 theunit.

WARNINGComponents having special characteristics are marked and must be replaced with parts having specification equal to thoseoriginally installed.

SPECIFICATIONS

PSR-280/PSR-282

3

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(AUTOFILL)

• 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 SongsReal Time RecordingRecording 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

4

PANEL LAYOUT

1

2

3 4

5

6

7 7

10

9

8

11

12

2423

222120

19

181716151413

1 Power switch ([STANDBY/ON])

2 [MASTER VOLUME] dial

3 [TOUCH] button

4 [HARMONY] button

5 [Dict.] (DICTIONARY) button

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

7 Overall (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

29

33

343537

3038 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

5

Rear Panel

Display

DM

AM

CN102 CN

501

CN

101

390 WH100 WH050WH060WH040

WH500 380

380WH300 WH400380WH200

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)

CN

911

CN

910

CN

101

CN912CN820

CN810

CN80

1

CN

601

CN

701

CN70

2CN

601

CN50

1

CN91

1

CN80

1

CN1

CN

703

CN706

CN705

CN701CN704

2NC-V524070 3

PSR-280/PSR-282

6

CIRCUIT BOARD LAYOUT

PSR-280/PSR-282

7

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-CN810SPEAKER R

2PAM-SP-R(V539140)WH300SPEAKER R

AM-CN820SPEAKER L

2PAM-SP-L(V560490)WH400SPEAKER L

LCD-CN1 DM-CN701 12PDM-LCD(V538980)WH500

LCD UNIT AM-CN912 2PAM-LCD(V539120)L70

POWER SUPPLYAM-POWER(V539130)380

KEYBOARD ASSEMBLYDM-MKS(V616910)390 DM-CN102 6P

AM-CN910 2P

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

Key

bo

ard

SW

MA

TR

IX

8MH

z

RE

SE

TS

WX

004.

2V

CP

UC

L1IC

1

LC

DD

RIV

ER

SW

MA

TR

IX

ST

AN

DB

Y/O

N

IC70

1

LC

DD

ISP

LA

YLD

701

LC

DBU

CKLIG

HT

CN

1

CN

102

CN

701

CN

702

CN

701

CN

911

CN

911

CN

1T

XD

1, L

SIIC

, RX

D1,

SC

LKI

PA

D0~

5, P

DT

0~7,

11,

12

C1~

C16

,S

1~S

40

S-B

US

D

0~15

, A0~

20

C-B

US

D

0~15

, A0~

20IC

103

1 9

153

14

31

21

21

SW

60

32

20 156

158,

163

, 164

5~7

IC10

1

RX

D0

TX

D0

AD

IN

CL

OC

K

DA

C

8.467

2MHz

CL0

01

DO

0, W

CLK

, QC

LK

IC50

1L

PF

EQ

PO

WE

RA

MP

PH

ON

ES

/O

UT

PU

T

IC50

2

IC80

0

IC81

0

IC82

0

13

152

1

17 12 147

7

7

2 6

2 5 6

CN

101

CN

601

CN

101

CN

601

JK62

0

JK63

0

JK90

0

JK64

0

CN

820

1 2 1 2C

N81

0

IC82

0

IC81

0

++

+ +

3W x

2C

N50

1

CN

501

CN

801

CN

801

MA

ST

ER

VO

LU

ME

MID

I I/F

IC60

1

+3.3

V R

EG

Tw

eete

r L

SU

ST

AIN

MID

I IN

MID

I OU

T

DC

IN10

-12V

BA

TT

ER

IES

1.5V

x 6

Tw

eete

r R

SP

-L 4

SP

-R 4

IC10

2

+5V

RE

GIC

930

+5V

RE

GIC

920

+5V

RE

GIC

940

+3.

3D +5D

+5V

8M R

OM

PR

OG

RA

MIC

202

1M S

RA

MIC

302

1M S

RA

MIC

301

RO

M2

32M

RO

MW

AV

EIC

201

RO

M1

+5V

CN

910

DM

MK

MK

S3

AM

PN(P

NL, P

NC, P

NR)

LC

DP

N(P

W)

PN

(VR

)28

CA

1-88

1689

5

PSR-280/PSR-282

8

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

9

1. Lower Case Assembly1-1 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 AsseemblyAfter removing the lower case assembly. (See Procedure 1.)

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

Circuit Board and UnitDM

AMPN(PW)

MKS3Keyboard 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)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)

5972123

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]

[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

10

3. Speakers3-1 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 Boards4-1 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)


5. PN(PNC), PN(PNR), LCD Circuit Boards5-1 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)


5-5 PN(PNR) Circuit Board:

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


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 assembly6-1 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

Rubber connector

(Fig. 4)

(Fig. 8)

(Fig. 9)

(Fig. 7)

Rubber contact

Rubber contact

Hooks BMK

PSR-280/PSR-282

11

7. Assembling the keyboard assembly7-1 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)

MKBlack 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)

PINNO.

I/O FUNCTIONNAME PINNO.

I/O FUNCTIONNAME

123456789

101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384

ICNRFCLKI

TM2AVDD_PLLAVSS_PLL

MODE0VCC7GND8XIN

XOUTMODE1TEST0

TESTONAN0-P40AN1-P41AN2-P42AN3-P43

AVDD_ANAVSS_AN

TXD0TXD1

EXCLKSMD11SMD4SMD3SMD12SMD10SMD5SMD2SMD13SMD9SMD6SMD1SMD14VCC35GND36SMD8SMD7SMD0SMD15

SOESWESRASSCAS

REFRESHCS0

SMA0SMA16VCC49GND50SMA1SMA15SMA2SMA14SMA3SMA13SMA4SMA12SMA5

GND60VCC61SMA11SMA6SMA10SMA7SMA9SMA17SMA8SMA18SMA19SMA20SMA21SMA22SMA23CMA20CMA19VCC77GND78CMA18CMA17CMA5CMA6CMA4CMA7

III

I

IOIIIIIII

OOI

I/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/O

I/OI/OI/OI/OOOOOOOOO

OOOOOOOOO

OOOOOOOOOOOOOOO

OOOOOOO

Initial clearPLL ClockPLL ControlPower supplyGroundSWX dual mode Power supplyGroundcrystal oscillatorcrystal oscillatorSWX separate mode TEST pinTEST pinA/D converterA/D converterA/D converterA/D converterPower supplyGroundfor MIDI or TO-HOSTfor MIDICrystal oscillatorWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busWave memory data busPower supplyGroundWave memory data busWave memory data busWave memory data busWave memory data busread signalwrite signalRAS signalCAS signalREFRESH signalCS signalMemory address busMemory address busPower supplyGroundMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busGroundPower supplyMemory address bus Memory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busMemory address busProgram address busProgram address busPower supply GroundProgram address busProgram address busProgram address busProgram address busProgram address busProgram address bus

858687888990919293949596979899

100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168

CMA3CMA8CMA2CRD

CMA1CUB

VCC91GHND92

CS1CMA0CLB

CMA12CMA11CMA10CMA9

GND100CWE

CMA16CMA15CMA14CMA13CMD8CMD7CMD9CMD6

CMD10CMD5

CMD11CMD4

CMD12CMD3

CMD13CMD2

CMD14VCC119GND115CMD1

CMD15CMD0CMA21PDT15PDT14PDT13PDT12PDT11PDT10PDT9PDT8

VCC133GND134

PDT7PDT6PDT5PDT4PDT3PDT2PDT1PDT0

VCA143GND144

PAD2PAD1PAD0

VCC148GND149

PCSPWRPRD

RXD0RXD1SCLKIADINADLRDO0DO1

SYSCLKVCC161GND162WCLKQCLKBCLKSYI

IRQ0NMI

OOOOOO

OOOOOOO

OOOOOI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/O

I/OI/OI/OOI/OI/OI/OI/OI/OI/OI/OI/O

I/OI/OI/OI/OI/OI/OI/OI/O

III

IIIIIIIOOOO

OOOIII

Program address busProgram address busProgram address busread signalProgram address bushigh byte effective signalPower supplyGroundCS signalProgram address buslow byte effective signalProgram address busProgram address busProgram address busProgram address busGroundwrite signalProgram address busProgram address busProgram address busProgram address busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busProgram memory Data busPower supplyGroundProgram memory Data busProgram memory Data busProgram memory Data busProgram address busSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busPower supplyGroundSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busSWX access data busPower supplyGroundSWX access address busSWX access address busSWX access address busPower supplyGroundChip selectwrite enableread enablefor Midi or TO-HOSTfor Midi or Key scanEXT ClockA/D converterA/D converter LR clockDACDAC1/2 clockPower supplyGroundfor DAC LR clock1/12 clockIIS-DAC clockSynch signalInterrupt requestInterrupt request

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

PSR-280/PSR-282

12

LSI PIN DESCRIPTION

PSR-280/PSR-282

13

PINNO.


I/O FUNCTIONNAME

123456789

1011121314151617181920

/RES/INTNUMA7A6A5A4A3A2A1A0B0B1B2B3B4B5B6B7

VSS

III

I/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/O

ResetInterrupt requestNon-maskable interrupt

Port A

Port B

Ground

2122232425262728293031323334353637383940

C7C6C5C4C3C2C1C0D0D1D2

D3/TXD4/RXD5//CK

D6//INT2/STBYTIMERXTAL

EXTALVCC

I/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OOIOIIIOI

Port C

Port D

(Serial data output)(Serial data input)(Clock for serial operation)(Interrupt request 2)(Standby mode signal)

TimerClock

Power supply

HD63B05V0F073P (XR951A00) CPU MKS3: IC1

PINNO.


I/O FUNCTIONNAME

123456789

10111213141516171819202122232425262728293031323334353637383940

S22S21S20S19S18S17S16S15S14S13S12S11S10S9S8S7S6S5S4S3S2S1Vss

OSC1OSC2

V1V2V3V4V5

CLK1CLK2VddMD

RSR/W

EDB0DB1

OOOOOOOOOOOOOOOOOOOOOO

IO

OO

OOIII

I/OI/O

Segment signal output for LCD driving

GroundOscillatorOscillator

Power supply

Data latch clockData shift clockPower supply (+5 V)Altamated signal for LCD driver outoutDisplay data interface

Read/writeEnableData interfaceData interface

41424344454647484950515253545556575859606162636465666768697071727374757677787980

DB2DB3DB4DB5DB6DB7C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16S40S39S38S37S36S35S34S33S32S31S30S29S28S27S26S25S24S23

I/OI/OI/OI/OI/OI/OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

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

14

IC BLOCK DIAGRAM

µPC4570C (XC520A00)Dual Operational AmplifierDM: IC502

AM: IC810,820

µPD6379AGR (XR998A00)D/A ConverterDM: IC501

1

2

3

4 -V

8

7

6

5

Output A +V

Non-InvertingInput A

-DC Voltage Supply

+DC VoltageSupply

Output B

InvertingInput BNon-InvertingInput B

InvertingInput A +-

+ -

1

2

3

4 LOUT

8

7

6

5

VDD

Ground

Lch analogoutput

Power supply

Shift clock

Serial dat input

L/R clock

Voltagereference

GND

REF

ROUT

CLK

SI

LRCK

Rch analogoutput

2NA-V539790

Component side

Pattern side

to DM-CN701

2

LCD Circuit Board

CIRCUIT BOARDS

PSR-280/PSR-282

15

AM Circuit Board (XY426B0) ····················································································· 18DM Circuit Board (XY036B0) ····················································································· 16LCD Circuit Board (XY486B0) ··················································································· 15MK-H Circuit Board (XR565B0) ················································································· 23MK-L Circuit Board (XR564B0)·················································································· 22MKS3 Circuit Board (XU878B0)················································································· 22PN(PNC) Circuit Board (XY361A0)············································································ 18PN(PNL) Circuit Board (XY361A0) ············································································ 20PN(PNR) Circuit Board (XY361A0)············································································ 20PN(PW) Circuit Board (XY361A0)·············································································· 18PN(VR) Circuit Board (XY361A0) ·············································································· 18

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

2NA-V533420

Component side

to HAMMER SENSOR-CN3

2

DM Circuit Board

from M

KS

-CN

1

from PN(VR)-CN501from LCD-CN701from AM-CN601from PN(PNR)-CN701 from AM-CN101

PSR-280/PSR-282

16

2NA-V533420

Pattern side

2

DM Circuit Board

IC101, IC501, IC301, 302 installation detailed drawing

IC101characterdirection

Pin 1 mark

IC501

character

Pin 1 mark

IC301,302

characterdirection

Pin 1 mark

PSR-280/PSR-282

17

Component side

Component side

Component side

Component side

to Speaker-R

PN(PNC, PW, VR): 2NA-V534590AM: 2NA-V534600 3

2

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 D

M-C

N50

1

to D

M-C

N60

1to

DM

-CN

101

from

Pow

er s

uppl

y

IN OUTMIDI SUSTAIN DC IN to-12V

PHONES/OUTPUT

VOICE

STANDBY/ON

STYLE SONG

MASTERVOLUME

PSR-280/PSR-282

18

Pattern side

Pattern side

Pattern side

Pattern side

AM Circuit Board

PN(PNC, PW, VR): 2NA-V534590AM: 2NA-V534600 3

2

PN(PNC) Circuit Board

PN(PW) Circuit Board

PN(VR) Circuit Board

PSR-280/PSR-282

19

PN(PNL, PNR): 2NA-V534590

Component side

Component side

to PN(PNC)-CN706

2

PN(PNL) Circuit Board

PN(PNR) Circuit Board

Overall

HARMONY

Yamaha Education Suite

Dict.

RLESSON

L

TOUCH

to DM-CN702

TEMPO/TAP FF

MAIN/AUTO FILL

REW

INTRO/ENDING

PAUSE

SYNCSTART

SYNCSTOP

A-B REPEAT

ACMPON/OFF

STYLE

SONGSTART/STOP

START/STOP

3 2 1

6 5 4

9 8 7

+/YES 0 -/NO DJ Piano

RECORDSONG MEMORY

1AMEMORY12BANK 2345

METRONOME

Portable Grand & DJ

DEMO

Overall

REGISTRATION MEMORY

PSR-280/PSR-282

20

Pattern side

Pattern side

PN(PNL) Circuit Board

PN(PNL, PNR): 2NA-V534590 2

PN(PNR) Circuit Board

PSR-280/PSR-282

21

Component side

Component side

MK-L Circuit Board

MKS3 Circuit Board

A'

A

B'

B

B'

B

A'

A

2NA-V240490MKS3:MK-L: 2NA-VV58380

to MK-H

to MK-H

to DM-CN102

PSR-280/PSR-282

22

Component side

MK-H Circuit Board

C'

C

D'

D

D'

D

C'

C

2NA-VV583900

to MKS3-CN4

to MK-L

PSR-280/PSR-282

23

PSR-280/PSR-282

24

TEST PROGRAMA. PREPARATION

1) PA-3B (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.

B. HOW TO ENTER THE TEST PROGRAMAUTO 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 PROGRAMAUTO 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 MODEThe LCD will display “TEST” when entering the test program.To select the program number, use the [-/NO] and [+/YES] 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

1

2

3

4

11

13

14

15

19

20

TEST NO.

001: Version

002: Rom Chk1

003: Ram Chk1

004: WaveRomChk1

011: TG1 Chk

013: Pitch Chk

014: Output R

015: Output L

019: Noise

020: SW,LED Chk

LCD (initial)

Displays ROM version

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


Checks the WAVE ROMs that are connected to the CPU


Outputs the sine wave by changing the channels in sequence from C1 to C4

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 +/- 1.76 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 -53.0 dBm PHONES R: -6.0 dBm +/- 2 dB


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

PHONES L: -6.0 dBm +/- 2 dB PHONES R: less than -53.0 dBm


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

PHONES L/R: Less than -78.0 dBm

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.


Test Functions and Judgment Criteria

PSR-280/PSR-282

25

282930

31

37

41

42

43

46

47

48

TEST NO.

028: All LCD On029: All LCD Off030: I/F Chk

031: Pedal1 Chk

037: Midi Chk

041: Rom Chk2

042: Ram Chk2

043: WaveRom Chk2

046: BackUp Chk2

047: Factory Set

048: Test Exit

LCD (initial)

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

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

Connect the foot switch (FC-4 or FC-5) to the [SUSTAIN] 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.

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.

Checks the ROMs that are connected to the CPU.


Checks the RAMs that are connected to the CPU.


Checks the WAVE ROM.


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.

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.

Test Functions and Judgment Criteria

* NOTE: The above tests No. 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-280/PSR-282

26

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.

“CLr Backup” will appear briefly on the display.

CAUTION• All Registration Memory and User

song data, plus the other settingslisted above, will be erased and/orchanged when the data initializationprocedure is carried out.

• Carrying out the data initializationprocedure will usually restorenormal operation if the PSR-280freezes or begins to act erraticallyfor any reason.

[Portable Keyboard] Date:26-JAN-2000

Model PSR-280/PSR-282

TransmittedFunction...

DefaultChanged

BasicChannel

DefaultMode Messages x x

Altered

Note 0 - 127 0 - 127Number : True voice

Note ONVelocityNote OFF

After x xTouch

Key'sCh's x x

Pitch Bend x o

0,32 o o Bank Select1 o Modulation wheel*2x

6,38 x o Data Entry*27 o o Part Volume

Control 10 x o Pan11 x Expressiono*2

Change o o Sustain64

91,93,94 x o Effect Depth96,97 x o RPN Inc,Dec

100,101 x o RPN LSB,MSB*2

84 x o Portamento Cntrl*2

Prog o 0 - 127o 0 - 127Change : True # **************

System Exclusive *3o *3o

: Song Pos.Common : Song Sel. : Tune

xxx

xxx

System : ClockReal Time : Commands

oo *4

oo *4

Aux : All Sound OFF : Reset All Cntrls : Local ON/OFF : All Notes OFFMes- : Active Sensesages: Reset

Mode 1: OMNI ON , POLY Mode 2: OMNI ON ,MONO o: YesMode 3: OMNI OFF, POLY Mode 4: OMNI OFF,MONO x: No

MIDI Implementation Chart Version: 1.0

Recognized Remarks

1 - 16 1 - 161 - 16 1 - 16

*1*1

3 3

************** x

************** 0 - 127

o 9nH,v=1-127 o 9nH,v=1-127o 9nH,v=0 o 9nH,v=0 or 8nH

xxxxox

o(120,126,127)o(121)xo(123-125)ox

MIDI IMPLEMENTATION CHART

PSR-280/PSR-282

27

NOTE:*1 By default (factory settings) the PSR-280 ordinarily functions as a 16-channel multi-timbral tone generator, and incoming data does not

affect the panel voices or panel settings. However, the MIDI messages listed below do affect the panel voices, auto accompaniment, and songs.

• MIDI Master Tuning• System exclusive messages for changing the Reverb Type, Chorus Type, and DSP Type.

*2 Messages for these control change numbers cannot be transmitted from the PSR-280 itself. However, they may be transmitted when playing the accompaniment or using the Harmony effect.

*3 Exclusive<GM System ON> F0H, 7EH, 7FH, 09H, 01H, F7H

• This message automatically restores all default settings for the instrument, with the exception of MIDI Master Tuning.

<MIDI Master Volume> F0H, 7FH, 7FH, 04H, 01H, ll, mm, F7H• This message allows the volume of all channels to be changed simultaneously (Universal System Exclusive).• The values of “mm” is used for MIDI Master Tuning. (Values for “ll” are ignored.)

<MIDI Master Tuning> F0H, 43H, 1nH, 27H, 30H, 00H, 00H, mm, ll, cc, F7H• This message simultaneously changes the tuning value of all channels.• The values of “mm” and “ll” are used for MIDI Master Tuning.• The default value of “mm” and “ll” are 08H and 00H, respectively. Any values can be used for “n” and “cc.”

<Bulk Dump>• This is used for saving (recording) User data (User songs and Registration Memory).• These messages control the clock setting for the accompaniment.

<Reverb Type> F0H, 43H, 1nH, 4CH, 02H, 01H, 00H, mmH, llH, F7H• mm: Reverb Type MSB• ll: Reverb Type LSBRefer to the Effect Map (page 86) for details.

<Chorus Type> F0H, 43H, 1nH, 4CH, 02H, 01H, 20H, mmH, llH, F7H• mm: Chorus Type MSB• ll: Chorus Type LSBRefer to the Effect Map (page 86) for details.

<DSP Type> F0H, 43H, 1nH, 4CH, 02H, 01H, 40H, mmH, llH, F7H• mm: DSP Type MSB• ll: DSP Type LSBRefer to the Effect Map (page 86) for details.

<DRY Level> F0H, 43H, 1nH, 4CH, 08H, 0mH, 11H, llH, F7H• ll: Dry Level• 0m: Channel Number

*4 When the accompaniment is started, an FAH message is transmitted.When accompaniment is stopped, an FCH message is transmitted.When the clock is set to External, both FAH (accompaniment start) and FCH (accompaniment stop) are recognized.

PSR-280/PSR-282

28

PSR-280/PSR-282

29

Effect map

REVERB

If the received value does not contain an effect type in the TYPE LSB, the LSB will be directed to TYPE 0.The numbers in parentheses in front of the Effect Type names correspond to the number indicated in the display.By using an external sequencer, which is capable of editing and transmitting the system exclusive messages and parameter changes, you can select the Reverb, Chorus and DSP effect types which are not accessible from the PSR-280/PSR-282 panel itself. When one of the effects is selected by the external sequencer, “ - ” will be shown on the display.

***

TYPEMSB

TYPE LSB00 01 02 08 16 17 18 19 20

000 No Effect001 (1)Hall1 (2)Hall2002 Room (3)Room1 (4)Room2003 Stage (5)Stage1 (6)Stage2004 Plate (7)Plate1 (8)Plate2

005...127 No Effect

DSPTYPEMSB

TYPE LSB00 01 02 08 16 17 18 19 20

000 No Effect001 (1)Hall1 (2)Hall2002 Room (3)Room1 (4)Room2003 Stage (5)Stage1 (6)Stage2004 Plate (7)Plate1 (8)Plate2005 Delay L,C,R (26)Delay L,C,R006 (27)Delay L,R007 (28)Echo008 (29)Cross Delay009 (9)Early Reflection1 (10)Early Reflection2010 (11)Gate Reverb011 (12)Reverse Gate

012...019 No Effect020 (30)Karaoke

021...064 No Effect065 Chorus (14)Chorus2066 Celeste067 Flanger

(13)Chorus1(16)Flanger2(15)Flanger1

068 Symphonic069 Rotary Speaker070 Tremolo071 Auto Pan072 (18)Phaser073 Distortion074 (33)Overdrive075 (34)Amp Simulation076 (36)3Band EQ

(32)Distortion Soft(35)EQ Telephone

077 (37)2Band EQ078 Auto Wah

(17)Symphonic(19)Rotary Speaker1(21)Tremolo1(24)Auto Pan (20)Rotary Speaker2 (22)Tremolo2 (23)Guitar Tremolo

(31)Distortion Hard

(25)Auto Wah079...127 No Effect

CHORUSTYPEMSB

TYPE LSB00 01 02 08 16 17 18 19 20

000...064 No Effect065 Chorus Chorus2066 Celeste Chorus1067 Flanger Flanger1 Flanger2

068...127 No Effect

CONTENTS

OVERALL ASSEMBLY······························································································································ 2KEYBOARD ASSEMBLY ·························································································································· 4ELECTRICAL PARTS ··························································································································· 5~9

PARTS LIST

WARNING

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

A: Australian modelB: British modelC: Canadian modelD: German modelE: European modelF: French modelH: North European modelI : Indonesian modelJ : Japanese model

M: South African modelO: Chinese modelQ: South-east Asia modelT: Taiwan modelU: U.S.A. modelV: General export model (110 V)W: General export model (220 V)N,X: General export modelY: Export model

Notes: DESTINATION ABBREVIATIONS

• The numbers in “ QTY ” show quantities for each unit.• The parts with “ - - ” in “ PART NO. ” are not available as spare parts.• The mark “ ” in the remarks column indicates that these parts are interchangeable.• The second letter of the shaded ( ) part number is O, not zero.• The second letter of the shaded ( ) part number is I, not one.

220

30

50

40

20250

280

210360

350 (PNC)

350 (PNR)

250350

(PW)350

(VR)

350

(PNL)250

250

250

10b

90

10 Upper case assembly

10c

10a

70

120

140130

80

60110

100

L70

L30

L50L60

150

LCD unit

L10

L20

20 30

50

40

250280

340

390

370

240400

240290

270

310

190c

160

170 300380

180

260

L40

L100

190d

190a

190 Lower case assembly

Keyboard assembly(See page 4)

190c

190b

190b

260

200270

PSR-280/PSR-282

2

OVERALL ASSEMBLY

PSR-280/PSR-282

3

OVERALL ASSEMBLYOverall AssemblyOverall AssemblyUpper Case AssemblyUpper Case AssemblyUpper CaseUpper CaseSpeaker GrilleSpeaker GrilleSpeakerSpeakerStopperSpongePN RubberPN Rubber

PN RubberPN RubberPN RubberPN Rubber

PN RubberPN RubberPN Rubber

LCD UnitKeyboard AssemblyTerminalSpring TerminalLower Case AssemblyLower CaseHolder, LegBind Head Tapping Screw-PFootBattery Cover AssemblyPush KnobVolume KnobBind Head Tapping Screw-BBind Head Tapping Screw-PBind Head Tapping Screw-PBind Head Tapping Screw-PBind Head Tapping Screw-PAdhesive TapeAdhesive TapeVibration-proof TapeShield BoxCircuit BoardCircuit boardCircuit BoardConnector AssemblyConnector AssemblyCord Holder

LCD UnitBack Light AssemblyLCD PanelLCDRubber ConnectorRubber ConnectorBind Head Tapping Screw-PCircuit BoardConnector AssemblyAdhesive Tape

ACSSESSORIESMusic RestAC AdapterAC AdapterJapanese GuideChinese Guide

DESCRIPTION

101010a10a10b10c203040506070

8090100110

120130140

150160170180190190a190b190c190d200210220240250260270280290300310340350360370380390400

L10L20L30L40L40L50L60L70L100

REF NO.

- -- -

V5253000V5502600

- -- -

V5201700V5201800XV806A00XV947A00

- -- -

V5145600V5145800

V5146100V5146400V5146500V5146600

V5146700V5150100V5146900

- -V2386100VI663700VI865800V3337900

- -VI104400EP600280CB043750VM754600VQ218800VU432400EP600250EP600280EP600300VK228100VB931600VN195400VA126100VJ861500

- -V5345900V5346000V5334200

- -- -

CB817510

- -V5265000V5339100V5263900V3755900V5415400EP600280V5478400

- -VA126100

V3385300VT368600VY944300V5242400V5303700

PART NO.

LEFTRIGHT12.0cm 4ohm 3W3.0cm

A3 YEC GY/OR

F OR/BLI BL/GYJ GYK GY/RE/BE

L GYM GYN RE/GY/BL

F16M C61 MKS3+-

CH3.0X8 MFZN2YBL T1.6

3.0X8 MFZN2Y3.0X8 MFZN2Y3.0X12 MFZN2Y3.0X25 MFZN2Y4.0X8 MFZN2BL12X7012X5018X25LOWERPNAMDMAM-POWER 2PDM-MKS 6PS-14B

FBTYPE-BRCD2143TSS-105LPO-SS-105L3.0X8 MFZN2YLCDAM-LCD 2P12X50

PA-3B JPPA-32 CH

PSR-280/PSR-282PSR280 J,U,C,W,O (V524070)PSR282 U,C (V549940)PSR280 J,U,C,W,OPSR282 U,CPSR280 J,U,X,W,O (V525260)PSR282 U,C (V550350)

WOOFERTWEETER

(V364540)(V364550)

DEMOYamaha Education Suite/LESSONPortable Grand & DJTOUCH,HARMONYLCD Select L,RSTYLE/SONG,PAUSE,START/STOP,REW,FF,TEMPO/TAPSONG,STYLE,VOICE0-9 Keys,-/NO,+/YESRECORD,SONG MEMORY,REGISTRATION MEMORY

(V541500)

(V311450)

STANDBY/ONMASTER VOLUME MIN/MAX

(V527510)

(V539130)(V616910)

(V541500)

(V539120)

PSR-280 JPSR-280 OPSR-280 JPSR-280 O

REMARKS

2222

2

365

9392058

172

228

QTY RANK

**

**

**

****

***

***

***

*

*

**

0703

11

0101

03010101010101030303

03

01

01

03

060910

*: New Parts RANK: Japan only

PSR-280/PSR-282

4

KEYBOARD ASSEMBLYBind Head Tapping Screw-PBind Head Tapping Screw-PFrameFrameWhite KeyWhite KeyWhite KeyWhite KeyBlack KeyFeltRubber SheetRubber ContactRubber ContactBind Head Tapping Screw-PBind Head Tapping Screw-PBind Head Tapping Screw-PGreaseCircuit Board Assembly

Circuit Board AssemblyCircuit BoardCircuit BoardCircuit BoardCableCableCableCableSpongeSpongeAdhesive TapeAdhesive Tape

DESCRIPTION

303050506060a60b8090100110120130140140140150160

S1S2S3S4S5S6S7S8S9S10S11

REF NO.

V2386100EP600280EP630220

- -VU328600VH1809C0

- -- -

VH181100VH181200VH181300VH181400VU328400VU328500EP600310VB205200VS756700TX920280

- -

- -VV583800VV583900V2404900VV583100VV583600VV583500VV583700

- -- -- -- -

PART NO.16M C61 MKS33.0X8 MFZN2Y3.0X8 MFZN2BLC61C61 16M16L CEGBDEA16L CEGB16L DFA16L C'16L #

16M OCT 2M 12KEYS16M C' 2M 1KEY3.0X16 MFZN2Y3.0X16 MFZN2BL3.0X16 MFZN2BG-31KAKBD SW MKS3

KBD SW MKS3MK-LMK-SKBS3MK-A 12PMK-B 12PMK-C 7PMK-D 5PA 16MB 16MC 12D 12

PSR-280/PSR-282

(VS15380)

(VH18090)(VH18910)

(V240470)

(V240470)

(VV61890)(VV61900)(VV61910)(VV61920)

REMARKS

22

555

5

5

212121

22

3

QTY RANK

0101

1005

01030301060501010110

09091003030303

KEYBOARD ASSEMBLY


90

60

60b60a

80

50

110

140

120

130

160

120

120

120

120

100

S6

S4 S1

S3

30

S5S2

S7

PSR-280/PSR-282

5

ELECTRICAL PARTSCircuit BoardCircuit BoardCircuit BoardCircuit BoardCircuit BoardCircuit BoardCircuit Board

Circuit BoardBind Head Tapping Screw-BJumper WireSemiconductive Cera. Cap.Mylar CapacitorMonolithic Mylar CapacitorMonolithic Mylar CapacitorMonolithic Mylar CapacitorCeramic Capacitor-BMonolithic Ceramic Cap.Ceramic Capacitor-BSemiconductive Cera. Cap.Mylar CapacitorMonolithic Mylar CapacitorMonolithic Mylar CapacitorMonolithic Mylar CapacitorCeramic Capacitor-BMonolithic Ceramic Cap.Ceramic Capacitor-BSemiconductive Cera. Cap.Mylar CapacitorMylar CapacitorElectrolytic Cap.Electrolytic Cap.Electrolytic Cap.-BPElectrolytic Cap.-BPMylar CapacitorMylar CapacitorElectrolytic Cap.Electrolytic Cap.Electrolytic Cap.-BPElectrolytic Cap.-BPElectrolytic Cap.Electrolytic Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Electrolytic Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Electrolytic Cap.Electrolytic Cap.Electrolytic Cap.Electrolytic Cap.Electrolytic Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Electrolytic Cap.Cable HolderCable HolderWire TrapCable HolderCable HolderBase Post ConnectorWire TrapWire Trap

DESCRIPTION

C0601C0801C0802C0803C0804C0805C0806C0807C0810C0811C0812C0813C0814C0815C0816C0817C0820C0821C0822C0823C0824C0825C0826C0831C0832C0833C0834C0835C0836C0841C0842C0843C0844C0845C0921C0922C0923C0924C0925C0931C0932C0933C0941C0942C0944C0945-0947C0948C0949C0950CN101CN601CN801CN810CN820CN910CN911CN912

REF NO.

V5346000V5334200V5478400VV583900VV583800V2404900V5345900

V5346000EP600190VA078900VC694800UA354680VR168700VR169000VR168900FG612470VT757800FG612470VC694800UA354680VR168700VR169000VR168900FG612470VT757800FG612470VC694800UA654470UA654470UR837470UR846470UN846470UN846470UA654470UA654470UR837470UR846470UN846470UN846470UR828100UR827330UR865470VC694800UR848100VC694800UR867100VC694800UR867100UR749470UR828100VC694800UR867100UR838100UR838100UR838100UR837100UR867100VC694800VC694800UR837100VI878300VI878400VK024800VI878000VI878000LB918020VK024800VK024600

PART NO.

AMDMLCDMK-HMK-LMKS3PN

AM3.0X8 MFZN2BL0.550.1 25V Z0.068 50V JECQ-V1H224JL3ECQ-V1H334JL3ECQ-V1H274JL3470P 50V K1.000 25V Z470P 50V K0.1 25V Z0.068 50V JECQ-V1H224JL3ECQ-V1H334JL3ECQ-V1H274JL3470P 50V K1.000 25V Z470P 50V K0.1 25V Z0.047 50V J0.047 50V J47.00 16.0V4.7 25.0V4.7 25.0V4.7 25.0V0.047 50V J0.047 50V J47.00 16.0V4.7 25.0V4.7 25.0V4.7 25.0V100.00 10.0V33.00 10.0V0.47 50.0V0.1 25V Z100.00 25.0V0.1 25V Z10.00 50.0V0.1 25V Z10.00 50.0V4700 25.0V100.00 10.0V0.1 25V Z10.00 50.0V100.00 16.0V100.00 16.0V100.00 16.0V10.00 16.0V10.00 50.0V0.1 25V Z0.1 25V Z10.00 16.0V51048 5P TE51048 6P TE52147 4P TE51048 2P TE51048 2P TEXH 2P TE52147 4P TE52147 2P TE

PSR-280/PSR-282(XY426B0)(XY360B0)(XY486B0)

(VV70120)(XR565B0)(VV70110)(XR564B0)

(XU878B0)(XY361A0)

(XY426B0)

REMARKS

3

QTY RANK

***

*

*

090910

01

01010101010101010101010101010101010101010101010101010101010101010101010101010501010101010101010101010101010101010101

ELECTRICAL PARTS


PSR-280/PSR-282

6

DiodeDiodeHeat SinkICICICICICICPhone JackDIN ConnectorDIN ConnectorPhone JackConnectorJumper WireJumper WireJumper WireCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCoilCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorMetal Oxide Film ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorMetal Oxide Film ResistorCarbon ResistorCarbon ResistorCarbon Resistor

DESCRIPTIOND0901D0902HS001IC800IC810IC820IC920IC930IC940JK620JK630JK640JK800JK900J0001J0003J0004L0621L0622L0621L0622L0631-0633L0631-0633L0641-0643L0641-0643L0801-0803L0801-0803L0901L0902L0901L0902R0801R0802R0803R0804R0805R0807R0808R0810R0811R0812R0813R0814R0815R0817R0818R0820R0821R0822R0823R0824R0825R0826R0827R0828R0829R0831R0832R0833R0834R0835R0836R0837R0838

REF NO.

VL723600VL723600

- -XQ619A00XC520A00XC520A00XL450A00XT625A00XL450A00VB312600VJ107200VJ107200LB101870VC664500VA078900VA078900VA078900VB835000VB835000VF968800VF968800VB835000VB835000VF968800VF968800VB835000VB835000VF968800VF968800VB835000VB835000VF968800VF968800VB835000VB835000VF968800VF968800HF756330HF756680HF756560HF757150HF757150HF756560HF755220HF756220HF756330HF756680HF756560HF757150HF757150HF756560HF755220HF756220HF756330HF756330HF757100HF757100VU317000HF753220HF753220HF755100HF755330HF756330HF756330HF757100HF757100VU317000HF753220HF753220HF755100

PART NO.20E1-FC420E1-FC4

LA4705NAUPC4570CUPC4570CPQ05RA1S-81250SGY-ZPQ05RA1YKB21-5012 BL5P YKF51-50505P YKF51-5050YKB21-5006HEC23050.550.550.55FL5R200QNT 20uHFL5R200QNT 20uHSBT-0260TF 60uHSBT-0260TF 60uHFL5R200QNT 20uHFL5R200QNT 20uHSBT-0260TF 60uHSBT-0260TF 60uHFL5R200QNT 20uHFL5R200QNT 20uHSBT-0260TF 60uHSBT-0260TF 60uHFL5R200QNT 20uHFL5R200QNT 20uHSBT-0260TF 60uHSBT-0260TF 60uHFL5R200QNT 20uHFL5R200QNT 20uHSBT-0260TF 60uHSBT-0260TF 60uH3.3K 1/4 J6.8K 1/4 J5.6K 1/4 J15.0K 1/4 J15.0K 1/4 J5.6K 1/4 J220.0 1/4 J2.2K 1/4 J3.3K 1/4 J6.8K 1/4 J5.6K 1/4 J15.0K 1/4 J15.0K 1/4 J5.6K 1/4 J220.0 1/4 J2.2K 1/4 J3.3K 1/4 J3.3K 1/4 J10.0K 1/4 J10.0K 1/4 J0.1 1W J2.2 1/4 J2.2 1/4 J100.0 1/4 J330.0 1/4 J3.3K 1/4 J3.3K 1/4 J10.0K 1/4 J10.0K 1/4 J0.1 1W J2.2 1/4 J2.2 1/4 J100.0 1/4 J

(V243900)POWER AMP 17WOP AMPOP AMPREGULATOR +5VREGULATOR +5VREGULATOR +5VSUSTAINMIDI INMIDI OUTPHONES/OUTPUTDC IN 12-12V

REMARKS QTY RANK

*

*

0101

0501010302030201010301

01010101010101010101010101010101010101010101010101010101010101010101010101010101

0101010101010101

010101


PSR-280/PSR-282

7

Carbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorProtector SwitchTransistorConnector AssemblyConnector AssemblyConnector AssemblyConnector Assembly

Circuit BoardBind Head Tapping Screw-BJumper WireElectrolytic Cap.Semiconductive Cera. Cap.Ceramic Capacitor-SLSemiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Electrolytic Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Electrolytic Cap.Ceramic Capacitor-BCeramic Capacitor-BCeramic Capacitor-BCeramic Capacitor-BCeramic Capacitor-BCeramic Capacitor-BElectrolytic Cap.Electrolytic Cap.Semiconductive Cera. Cap.Electrolytic Cap.Ceramic Capacitor-SLCeramic Capacitor-SLSemiconductive Cera. Cap.Semiconductive Cera. Cap.Ceramic Capacitor-BSemiconductive Cera. Cap.Ceramic Capacitor ArrayCeramic Capacitor ArrayCeramic Capacitor ArrayCeramic ResonatorWire TrapWire TrapWire TrapWire TrapWire Trap

DESCRIPTIONR0839R0840R0941R0942R0943R0944R0945R0950-0953TH901TR900WH100WH200WH300WH400

C0101C0102C0104C0105C0106C0107-0109C0110C0111C0112C0113C0114C0115C0116C0117C0118C0119C0120C0201C0202C0301C0302C0303C0501C0502C0503C0504C0505C0506C0507C0508C0509C0510C0511C0512C0514C0515C0516C0517C0601C0602C0603CA101CA701CA702CL001CN101CN102CN501CN601CN701

REF NO.

HF755330HF757100HF756470HF757100HF756470HF756560HF756560HF755120HF755120VU847300IC174070

- -- -- -- -

V5334200EP600190VA078900UR828100VC694800FG652100VC694800UR828100VC694800VC694800UR828100UR828100VC694800UR828100VC694800UR828100VC694800UR828100VC694800UR828100VC694800VC694800VC694800VC694800VC694800UR828100VC694800UR837470UR837470FG613220FG613220FG612220FG612220FG612330FG612330UR866470UR866470VC694800UR837470FG652100FG652100VC694800VC694800FG613100VC694800VK994900VH484100VH484100V2192500VK024900VF728300VK024800VF728300VK025600

PART NO.330.0 1/4 J10.0K 1/4 J4.7K 1/4 J10.0K 1/4 J4.7K 1/4 J5.6K 1/4 J5.6K 1/4 J120.0 1/4 J120.0 1/4 JRUE185 1.85A 30V2SC1740S R,SDM-AM1 5PDM-AM2 6PAM-SP-R 2PAM-SP-L 2P

DM3.0X8 MFZN2BL0.55100.00 10.0V0.1 25V Z100P 50V J0.1 25V Z100.00 10.0V0.1 25V Z0.1 25V Z100.00 10.0V100.00 10.0V0.1 25V Z100.00 10.0V0.1 25V Z100.00 10.0V0.1 25V Z100.00 10.0V0.1 25V Z100.00 10.0V0.1 25V Z0.1 25V Z0.1 25V Z0.1 25V Z0.1 25V Z100.00 10.0V0.1 25V Z47.00 16.0V47.00 16.0V2200P 50V K2200P 50V K220P 50V K220P 50V K330P 50V K330P 50V K4.7 50.0V4.7 50.0V0.1 25V Z47.00 16.0V100P 50V J100P 50V J0.1 25V Z0.1 25V Z1000P 50V K0.1 25V Z100P 50V M100P 50V M100P 50V M8.4672M CST8.46MT52147 5P TE52147 6P TE52147 4P TE52147 6P TE52147 12P TE

(V538990)(V539000)(V539140)(V560490)

(XY360B0)

REMARKS QTY RANK

*

0101010101010101010301

01

010101010101010101010101010101010101010101010101010101010101010101010101010101010101010202010101010101


PSR-280/PSR-282

8

Wire TrapDiodeICICICICICICICICICICICICPhoto CouplerIC SocketIC SocketJumper WireJumper WireJumper WireJumper WireJumper WireJumper WireCoilCoilCoilCoilJumper WireJumper WireCoilCoilCoilCoilCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorResistor ArrayTransistorTransistor

Circuit BoardElectrolytic Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Cable Holder

DESCRIPTIONCN702D0601IC101IC102IC103IC201IC201IC202IC301IC301IC302IC302IC501IC502IC601IS201IS202J0104J0105J0201J0501J0601J0701L0101L0102L0101L0102L0103L0104L0105-0109L0105-0109R0101R0102R0103R0104R0108R0110R0111R0112R0114R0115R0116R0117R0118R0119R0301R0302R0501R0502R0503-0508R0601R0604R0605R0607R0608R0609R0610R0712-0721RA701TR601TR602

C0707C0708C0709CN001

REF NO.

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

V5478400UR828100VC694800VC694800VI879000

PART NO.52147 14P TE1SS133,1SS176HG73C205AFDUPC29M33HFIC-PST591D-2

M27C800-100F1M5M51008CFP-55HUPD431000AGW-70LLM5M51008CFP-55HUPD431000AGW-70LLUPD6379AGRUPC4570CPC-900VDICF-42CS-EDICF-42CS-E0.550.550.550.550.550.55FL5R200QNT 20uHFL5R200QNT 20uHSBT-0260TF 60uHSBT-0260TF 60uH0.550.55FL5R200QNT 20uHFL5R200QNT 20uHSBT-0260TF 60uHSBT-0260TF 60uH47.0K 1/4 J220.0 1/4 J10.0K 1/4 J100.0 1/4 J100.0 1/4 J47.0K 1/4 J100.0 1/4 J100.0 1/4 J100.0 1/4 J47.0K 1/4 J47.0K 1/4 J100.0K 1/4 J100.0K 1/4 J47.0K 1/4 J47.0K 1/4 J100.0 1/4 J2.2K 1/4 J2.2K 1/4 J22.0K 1/4 J22.0K 1/4 J220.0 1/4 J220.0 1/4 J10.0K 1/4 J22.0K 1/4 J2.7K 1/4 J47.0K 1/4 J1.0K 1/4 J220.0 1/4 J220.0 1/4 JRGLE8X473J2SC1740S R,S2SC1740S R,S

LCD100.00 10.0V0.1 25V Z0.1 25V Z51048 12P TE

SWX00BREGULATOR +3.3VRESET

ROM 32M PROGRAM/WAVE

MASK 8M PROGRAMSRAM 1M

SRAM 1M

DACOP AMP

(XY486B0)

REMARKS QTY RANK

*******

*

0101090302

0401030303

01010101

010101010101010101010101010101010101010101010101010101010101010101010101

01010101


PSR-280/PSR-282

9

ICCarbon ResistorCarbon ResistorCarbon ResistorResistor ArrayThermistorConnector Assembly

Circuit BoardDiodeWire TrapWire Trap

Circuit BoardDiodeWire TrapWire Trap

Circuit BoardVibration-proof TapeJumper WireCeramic Capacitor-SLCeramic Capacitor-SLCeramic Capacitor-SLCeramic Capacitor-SLElectrolytic Cap.Semiconductive Cera. Cap.Semiconductive Cera. Cap.Ceramic Capacitor ArrayCeramic Capacitor ArrayCeramic ResonatorCeramic ResonatorWire TrapWire TrapWire TrapWire TrapICCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorCarbon ResistorResistor Array

Circuit BoardCable HolderCable HolderCable HolderCable HolderCable HolderCable HolderCable HolderCable HolderDiodeDiodePush SwitchRotary Variable ResistorConnector AssemblyConnector AssemblyConnector AssemblyConnector AssemblyConnector AssemblyConnector Assembly

SpeakerSpeaker

Back Light AssemblyLCD

DESCRIPTIONIC701R0723R0724R0725RA702TH701WH200

C1C1C2C2C3C4C4

CA1CA2CL1CL1CN1CN2CN3CN4IC1R1R1R2R2R3R3

RA1

CN501CN701CN703CN704CN705CN706CN801CN911D0001-0008SW060VR001WH010WH020WH030WH040WH050WH060

REF NO.

XV226A00HF755220HF757910HF754680V5302400VR346900

- -

VV583900VV437800VK025600VK024900

VV583800VV437800VK025600VK025100

V2404900- -

VA078900FG651220VR027400FG651220VR027400UR828100VD930900VM902400VP755200VT487100VN002100VQ305500VF728300VK025600VK025100VK024900XR951A00HF456470VL631400HF456470VL631400HF457470VL632600VH373200

V5345900VI878200VI879200VI878700VI878700VI878200VI878200VI878200VI878200VB941200VB941200VY980400VZ048400

- -- -- -- -- -- -

XV806A00XV947A00

V5265000V5263900

PART NO.KS0066U-10B220.0 1/4 J91.0K 1/4 J68.0 1/4 JRGLE5V222JERTD2FGJ801S 800DM-LCD 12P

MK-H1N4148(DO-34)52147 12P TE52147 5P TE

MK-L1N4148(DO-34)52147 12P TE52147 7P TE

MKS310X64X0.50.5522P 50V J22P 63V J22P 50V J22P 63V J100.00 10.0V0.1 25V M0.1 25V Z100P 50V K470P X12CST8.00MTW1408.00M EFOEC8004T352147 6P TE52147 12P TE52147 7P TE52147 5P TEHD63B05V0F07P4.7K 1/4 J4.7K 1/6 J4.7K 1/4 J4.7K 1/6 J47.0K 1/4 J47.0K 1/6 JRGLE12X473J

PN51048 4P TE51048 14P TE51048 9P TE51048 9P TE51048 4P TE51048 4P TE51048 4P TE51048 4P TE1SS133,1SS1761SS133,1SS176SDDLB1 J,UC,CEEA10.0K XV0141GPVN2DM-PN-R 14PPN-R-PN-L 9PPN-L-PN-C 4PDM-VR 4PAM-VR 4PAM-PSW 4P

12.0cm 4ohm 3W3.0cm

BRCD2143T

LCD DRIVER

(V538980)

(VV70120)(XR565B0)

(VV70110)(XR564B0)

(XU878B0)(VK34680)

CPU

(XY361A0)

STANDBY/ONMASTER VOLUME

(V539010)(V539100)(V539110)(V539030)(V539060)(V539040)

WOOFERTWEETER

REMARKS

22

QTY RANK

*

**

050101010103

09010101

09010101

10

0101010101010102020202010101010601010101010101

010101010101010101010302

0703


1

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

A B C D E F G H I J K L


PSR-280/PSR282PSR-280/PSR-282 OVERALL CIRCUIT DIAGRAM 1/2 ( DM, AM, PN(VR, PW) )

PSR-280/PSR282PSR-280/PSR282

to MKS3-CN1

DM

AM 1/2

AM 2/2

PN (VR)

MASTERVOLUME

to PN(PNR)-CN701to LCD-CN1

SUSTAIN

IN

MIDI

OUT

EPROM 8M PROGRAM ROM 32M PROGRAM/WAVE

SRAM 1M

SRAM 1M

SWX00B

REGULATOR +3.3V

RESET

PHOTO COUPLER DAC

OP AMP

OP AMP

OP AMP

OP AMP

OP AMP

OP AMP OP AMP

POWER AMP 17W

REGULATOR +5V

REGULATOR +5V

REGULATOR +5V

to BATTERY

PHONES/OUTPUT

to SPEAKER-R

to SPEAKER-L

to LCD

DC IN 10-12V

PQ05RA1(XL450A00)REGULATOR +5V

2: OUT

1: IN

3: GND4: ON/OFcont.

4321

REGULATOR +5VS-81250SGY-Z (XT625A00)

213

3: OUTPUT2: INPUT1: GND

REGULATOR +3.3VµPC29M33HF (XT333A00)

12

3 3: OUTPUT2: COMMON1: INPUT

20E1-FC4 (VL723600)DIODE

1

2

1: ANODE2: CATHODE

: Mylar Capacitor

: Ceramic Capacitor

: Semiconductive Cera Cap

: Metal Oxide Film Resistor

See parts list for details of circuit boardcomponent parts.

Note :

PN (PW)

STAND-BY ON

28CC1-8816889

28CC1-8816890

28CC1-881689228CC1-8816892

28CC1-8816890

1

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2



PSR-280/PSR282PSR-280/PSR-282 OVERALL CIRCUIT DIAGRAM 2/2 (PN(PNL, PNR, PNC), MK-H, MK-L, MKS3, LCD)

PSR-280/PSR282PSR-280/PSR282

PN(PNL)

PN(PNC) LCD

MKS3

MK-H

MK-L

PN(PNR)

to DM-CN702

to DM-CN701

to DM-CN102

CPU

LCD DRIVER

LCD

HARMONY ON/OFF

TOUCH ON/OFF

REVERB

YES2DITIONARY

LESSON L LESSON R

A-B REPEAT

ACMPON/OFF

SYNCSTOP

SYNCSTART

START/STOP INTRO/ENDINGMAIN/

AUTO FULL

TEMPO/TAP

TRANSPOSE

DEMO

METRONOME

PORTABLEGRAND

1 2 3

4 5 6

7 8 9

–/NO 0

BANK21MEMORYACMP54321RECORD

+/YES

FFREW

SONG STYLE VOICE

PAUSE

28CC1-8812655

28CC1-8811360

28CC1-8811360

28CC1-8816890

28CC1-8816890

28CC1-8816890

28CC1-8816890

: Semiconductive Cera Cap

See parts list for details of circuit boardcomponent parts.

Note :

to AM-CN912

Documents

SERVICE MANUAL - go-gddq. · PDF fileSERVICE MANUAL PK 001641 ... service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable