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)
circuit board can then be removed. (Fig. 3)
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)
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 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 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 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
The test results appear on the LCD.
Checks the WAVE ROMs that are connected to the CPU
The test results appear on the LCD.
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
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: -6.0 dBm +/- 2 dB PHONES R: less than -53.0 dBm
Connect the level meter (with a JIS-C filter) to the [PHONES] jack. (33 ohm load)
Set the [MASTER VOLUME] at maximum. Check D/A converter noise.
PHONES L/R: Less than -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.
The test results appear on the LCD.
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.
The test results appear on the LCD.
Checks the RAMs that are connected to the CPU.
The test results appear on the LCD.
Checks the WAVE ROM.
The test results appear on the LCD.
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
*: New Parts RANK: Japan only
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
*: New Parts RANK: Japan only
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
*: New Parts RANK: Japan only
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
*: New Parts RANK: Japan only
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
*: New Parts RANK: Japan only
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
*: New Parts RANK: Japan only
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
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
A B C D E F G H I J K L
A B C D E F G H I J K L
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