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SERVICE MANUAL

PK

001641

HAMAMATSU, JAPAN

1.43K-257

Printed in Japan '00.06

CONTENTS

SPECIFICATIONS ···································································· 3
PANEL LAYOUT ······································································· 4
CIRCUIT BOARD LAYOUT ······················································ 6
BLOCK DIAGRAM ···································································· 8
DISASSEMBLY PROCEDURE················································· 9
LSI PIN DESCRIPTION ·························································· 12
IC BLOCK DIAGRAM ····························································· 14
CIRCUIT BOARDS ································································· 15
TEST PROGRAM ··································································· 24
DATA INITIALIZATION ··························································· 26
MIDI IMPLEMENTATION CHART ·········································· 27
PARTS LIST
OVERALL CIRCUIT DIAGRAM

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

PSR-280

PSR-282

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Содержание PORTATONE PSR-280

Страница 1: ...UT 4 CIRCUIT BOARD LAYOUT 6 BLOCK DIAGRAM 8 DISASSEMBLY PROCEDURE 9 LSI PIN DESCRIPTION 12 IC BLOCK DIAGRAM 14 CIRCUIT BOARDS 15 TEST PROGRAM 24 DATA INITIALIZATION 26 MIDI IMPLEMENTATION CHART 27 PARTS LIST OVERALL CIRCUIT DIAGRAM This document is printed on chlorine free ECF paper with soy ink PSR 280 PSR 282 ...

Страница 2: ...ction of expensive components and failure of the product to perform as specified For these reasons we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative IMPORTANT This presentation or sale of this manual to any individual or firm does not constitute authorization certification recognition of any ap...

Страница 3: ...ntrols Transpose Tuning Accompaniment Volume Song Volume Metronome Volume MIDI Reverb DSP Harmony Grade Talking Effects Reverb 8 types DSP 37 types Harmony 26 types Song 100 Songs 5 User Songs Song Clear Track Clear Recording Song User Song 5 Songs Real Time Recording Recording Tracks 1 2 3 4 5 CHORD MIDI Clock Bulk Send Receive Initial Send Auxiliary jacks PHONES OUTPUT DC IN 10 12 V MIDI IN OUT ...

Страница 4: ...ht 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...

Страница 5: ...erall 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 ...

Страница 6: ...30 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 L MK H MKS3 PN VR CN911 CN910 CN101 CN912 CN820 CN810 CN801 CN601 CN701 CN702 CN601 CN501 CN911 CN801 CN1 CN703 CN706 CN705 CN701 CN704 2NC V524070 3 PSR 280 PSR 282 6 CIRCUIT BOARD LAYOUT ...

Страница 7: ...M VR V539060 WH050 PN PW CN911 AM CN911 4P AM PSW V539040 WH060 AM CN101 DM CN101 5P DM AM1 V538990 WH100 AM CN601 DM CN601 6P DM AM2 V539000 WH200 AM CN810 SPEAKER R 2P AM SP R V539140 WH300 SPEAKER R AM CN820 SPEAKER L 2P AM SP L V560490 WH400 SPEAKER L LCD CN1 DM CN701 12P DM LCD V538980 WH500 LCD UNIT AM CN912 2P AM LCD V539120 L70 POWER SUPPLY AM POWER V539130 380 KEYBOARD ASSEMBLY DM MKS V61...

Страница 8: ...K QCLK IC501 LPF EQ POWER AMP PHONES OUTPUT IC502 IC800 IC810 IC820 1 3 15 2 1 17 12 14 7 7 7 2 6 2 5 6 CN101 CN601 CN101 CN601 JK620 JK630 JK900 JK640 CN820 1 2 1 2 CN810 IC820 IC810 3W x 2 CN501 CN501 CN801 CN801 MASTER VOLUME MIDI I F IC601 3 3V REG Tweeter L SUSTAIN MIDI IN MIDI OUT DC IN 10 12V BATTERIES 1 5V x 6 Tweeter R SP L 4 SP R 4 IC102 5V REG IC930 5V REG IC920 5V REG IC940 3 3D 5D 5V ...

Страница 9: ...bly 1 1 Remove the battery cover assembly Fig 1 1 2 Remove the fifteen 15 screws marked 260A and two 2 screws marked 270A The lower case assembly can then be removed Fig 1 2 Circuit Board and Units on the Panel Asseembly After removing the lower case assembly See Procedure 1 Remove the following screws each circuit board and can be removed Fig 2 Circuit Board and Unit DM AM PN PW MKS3 Keyboard Ass...

Страница 10: ...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 ...

Страница 11: ... Check that the rubber contact has been firmly placed into position in the area indicated by the arrow Figure 10 When fitting the rubber contacts raise both ends of the frame so that do not push the rubber contact up Install the MK circuit board in the assembly so that the hooks B hold it as shown in Figure 11 Fig 7 8 9 White Keys Rubber contact Hooks A Black Keys Fig 5 MK Black Keys White Keys DF...

Страница 12: ...0 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 CMA3 CMA8 CMA2 CRD CMA1 CUB VCC91 GHND92 CS1 CMA0 CLB CMA12 CMA11 CMA10 CMA9 GND100 CWE CMA16 C...

Страница 13: ... 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 Vss OSC1 OSC2 V1 V2 V3 V4 V5 CLK1 CLK2 Vdd M D RS R W E DB0 DB1 O O O O O O O O O O O O O O O O O O O O O O I O O O O O I I I I O I O Segment signal output for LCD driving Ground Oscillator Oscillator Power supply Data latch clock Data shift clock Power supply...

Страница 14: ...verter DM IC501 1 2 3 4 V 8 7 6 5 Output A V Non Inverting Input A DC Voltage Supply DC Voltage Supply Output B Inverting Input B Non Inverting Input B Inverting Input A 1 2 3 4 LOUT 8 7 6 5 VDD Ground Lch analog output Power supply Shift clock Serial dat input L R clock Voltage reference GND REF ROUT CLK SI LRCK Rch analog output ...

Страница 15: ...XY036B0 16 LCD Circuit Board XY486B0 15 MK H Circuit Board XR565B0 23 MK L Circuit Board XR564B0 22 MKS3 Circuit Board XU878B0 22 PN PNC Circuit Board XY361A0 18 PN PNL Circuit Board XY361A0 20 PN PNR Circuit Board XY361A0 20 PN PW Circuit Board XY361A0 18 PN VR Circuit Board XY361A0 18 Note See parts list for details of circuit board component parts ...

Страница 16: ...2NA V533420 Component side to HAMMER SENSOR CN3 2 DM Circuit Board from MKS CN1 from PN VR CN501 from LCD CN701 from AM CN601 from PN PNR CN701 from AM CN101 PSR 280 PSR 282 16 ...

Страница 17: ...20 Pattern side 2 DM Circuit Board IC101 IC501 IC301 302 installation detailed drawing IC101 character direction Pin 1 mark IC501 character Pin 1 mark IC301 302 character direction Pin 1 mark PSR 280 PSR 282 17 ...

Страница 18: ... 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 DM CN501 to DM CN601 to DM CN101 from Power supply IN OUT MIDI SUSTAIN DC IN to 12V PHONES OUTPUT VOICE STANDBY ON STYLE SONG MASTER VOLUME PSR 280 PSR 282 18 ...

Страница 19: ...Pattern side Pattern side Pattern side Pattern side AM Circuit Board PN PNC PW VR 2NA V534590 AM 2NA V534600 3 2 PN PNC Circuit Board PN PW Circuit Board PN VR Circuit Board PSR 280 PSR 282 19 ...

Страница 20: ...ducation Suite Dict R LESSON L TOUCH to DM CN702 TEMPO TAP FF MAIN AUTO FILL REW INTRO ENDING PAUSE SYNC START SYNC STOP A B REPEAT ACMP ON OFF STYLE SONG START STOP START STOP 3 2 1 6 5 4 9 8 7 YES 0 NO DJ Piano RECORD SONG MEMORY 1 A MEMORY 1 2 BANK 2 3 4 5 METRONOME Portable Grand DJ DEMO Overall REGISTRATION MEMORY PSR 280 PSR 282 20 ...

Страница 21: ...Pattern side Pattern side PN PNL Circuit Board PN PNL PNR 2NA V534590 2 PN PNR Circuit Board PSR 280 PSR 282 21 ...

Страница 22: ...Component side Component side MK L Circuit Board MKS3 Circuit Board A A B B B B A A 2NA V240490 MKS3 MK L 2NA VV58380 to MK H to MK H to DM CN102 PSR 280 PSR 282 22 ...

Страница 23: ...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 ...

Страница 24: ...ays 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 finis...

Страница 25: ...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 ...

Страница 26: ...n the keyboard CLr Backup will appear briefly on the display CAUTION All Registration Memory and User song data plus the other settings listed above will be erased and or changed when the data initialization procedure is carried out Carrying out the data initialization procedure will usually restore normal operation if the PSR 280 freezes or begins to act erratically for any reason ...

Страница 27: ... RPN Inc Dec 100 101 x o RPN LSB MSB 2 84 x o Portamento Cntrl 2 Prog o 0 127 o 0 127 Change True System Exclusive 3 o 3 o Song Pos Common Song Sel Tune x x x x x x System Clock Real Time Commands o o 4 o o 4 Aux All Sound OFF Reset All Cntrls Local ON OFF All Notes OFF Mes Active Sense sages Reset Mode 1 OMNI ON POLY Mode 2 OMNI ON MONO o Yes Mode 3 OMNI OFF POLY Mode 4 OMNI OFF MONO x No MIDI Im...

Страница 28: ...IDI 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 cloc...

Страница 29: ... TYPE MSB TYPE LSB 00 01 02 08 16 17 18 19 20 000 No Effect 001 1 Hall1 2 Hall2 002 Room 3 Room1 4 Room2 003 Stage 5 Stage1 6 Stage2 004 Plate 7 Plate1 8 Plate2 005 Delay L C R 26 Delay L C R 006 27 Delay L R 007 28 Echo 008 29 Cross Delay 009 9 Early Reflection1 10 Early Reflection2 010 11 Gate Reverb 011 12 Reverse Gate 012 019 No Effect 020 30 Karaoke 021 064 No Effect 065 Chorus 14 Chorus2 066...

Страница 30: ...Indonesian model J Japanese model M South African model O Chinese model Q South east Asia model T Taiwan model U U S A model V General export model 110 V W General export model 220 V N X General export model Y 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 indica...

Страница 31: ...ase assembly 10c 10a 70 120 140 130 80 60 110 100 L70 L30 L50 L60 150 LCD unit L10 L20 20 30 50 40 250 280 340 390 370 240 400 240 290 270 310 190c 160 170 300 380 180 260 L40 L100 190d 190a 190 Lower case assembly Keyboard assembly See page 4 190c 190b 190b 260 200 270 PSR 280 PSR 282 2 OVERALL ASSEMBLY ...

Страница 32: ...201800 XV806A00 XV947A00 V5145600 V5145800 V5146100 V5146400 V5146500 V5146600 V5146700 V5150100 V5146900 V2386100 VI663700 VI865800 V3337900 VI104400 EP600280 CB043750 VM754600 VQ218800 VU432400 EP600250 EP600280 EP600300 VK228100 VB931600 VN195400 VA126100 VJ861500 V5345900 V5346000 V5334200 CB817510 V5265000 V5339100 V5263900 V3755900 V5415400 EP600280 V5478400 VA126100 V3385300 VT368600 VY9443...

Страница 33: ...630220 VU328600 VH1809C0 VH181100 VH181200 VH181300 VH181400 VU328400 VU328500 EP600310 VB205200 VS756700 TX920280 VV583800 VV583900 V2404900 VV583100 VV583600 VV583500 VV583700 PART NO 16M C61 MKS3 3 0X8 MFZN2Y 3 0X8 MFZN2BL C61 C61 16M 16L CEGBDEA 16L CEGB 16L DFA 16L C 16L 16M OCT 2M 12KEYS 16M C 2M 1KEY 3 0X16 MFZN2Y 3 0X16 MFZN2BL 3 0X16 MFZN2B G 31KA KBD SW MKS3 KBD SW MKS3 MK L MK S KBS3 MK...

Страница 34: ... C0945 0947 C0948 C0949 C0950 CN101 CN601 CN801 CN810 CN820 CN910 CN911 CN912 REF NO V5346000 V5334200 V5478400 VV583900 VV583800 V2404900 V5345900 V5346000 EP600190 VA078900 VC694800 UA354680 VR168700 VR169000 VR168900 FG612470 VT757800 FG612470 VC694800 UA354680 VR168700 VR169000 VR168900 FG612470 VT757800 FG612470 VC694800 UA654470 UA654470 UR837470 UR846470 UN846470 UN846470 UA654470 UA654470 ...

Страница 35: ...0 VF968800 VF968800 VB835000 VB835000 VF968800 VF968800 VB835000 VB835000 VF968800 VF968800 VB835000 VB835000 VF968800 VF968800 HF756330 HF756680 HF756560 HF757150 HF757150 HF756560 HF755220 HF756220 HF756330 HF756680 HF756560 HF757150 HF757150 HF756560 HF755220 HF756220 HF756330 HF756330 HF757100 HF757100 VU317000 HF753220 HF753220 HF755100 HF755330 HF756330 HF756330 HF757100 HF757100 VU317000 HF...

Страница 36: ...4 C0505 C0506 C0507 C0508 C0509 C0510 C0511 C0512 C0514 C0515 C0516 C0517 C0601 C0602 C0603 CA101 CA701 CA702 CL001 CN101 CN102 CN501 CN601 CN701 REF NO HF755330 HF757100 HF756470 HF757100 HF756470 HF756560 HF756560 HF755120 HF755120 VU847300 IC174070 V5334200 EP600190 VA078900 UR828100 VC694800 FG652100 VC694800 UR828100 VC694800 VC694800 UR828100 UR828100 VC694800 UR828100 VC694800 UR828100 VC69...

Страница 37: ...63100 VK863100 VA078900 VA078900 VA078900 VA078900 VA078900 VA078900 VB835000 VB835000 VF968800 VF968800 VA078900 VA078900 VB835000 VB835000 VF968800 VF968800 HF757470 HF755220 HF757100 HF755100 HF755100 HF757470 HF755100 HF755100 HF755100 HF757470 HF757470 HF758100 HF758100 HF757470 HF757470 HF755100 HF756220 HF756220 HF757220 HF757220 HF755220 HF755220 HF757100 HF757220 HF756270 HF757470 HF75610...

Страница 38: ...37800 VK025600 VK025100 V2404900 VA078900 FG651220 VR027400 FG651220 VR027400 UR828100 VD930900 VM902400 VP755200 VT487100 VN002100 VQ305500 VF728300 VK025600 VK025100 VK024900 XR951A00 HF456470 VL631400 HF456470 VL631400 HF457470 VL632600 VH373200 V5345900 VI878200 VI879200 VI878700 VI878700 VI878200 VI878200 VI878200 VI878200 VB941200 VB941200 VY980400 VZ048400 XV806A00 XV947A00 V5265000 V526390...

Страница 39: ...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 GND 4 ON OFcont 4 3 2 1 REGULATOR 5V S 81250SGY Z XT625A00 2 1 3 3 OUTPUT 2 INPUT 1 GND REGULATOR 3 3V µPC29M33HF XT333A00 1 2 3 3 OUTPUT 2 COMMON 1 INPUT 20E1 FC4 VL723600 DIODE 1 2 1 ANODE 2 C...

Страница 40: ... DM CN102 CPU LCD DRIVER LCD HARMONY ON OFF TOUCH ON OFF REVERB YES2 DITIONARY LESSON L LESSON R A B REPEAT ACMP ON OFF SYNC STOP SYNC START START STOP INTRO ENDING MAIN AUTO FULL TEMPO TAP TRANSPOSE DEMO METRONOME PORTABLE GRAND 1 2 3 4 5 6 7 8 9 NO 0 BANK 2 1 MEMORY ACMP 5 4 3 2 1 RECORD YES FF REW SONG STYLE VOICE PAUSE 28CC1 8812655 28CC1 8811360 28CC1 8811360 28CC1 8816890 28CC1 8816890 28CC1...

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