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Yamaha Clavinova CLP-955, Руководство по обслуживанию

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CLP-955

8

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 DISASSEMBLY PROCEDURE

1.

Speaker Grill Assembly and Top Board (Small) Assembly

1-1. Put up and set the music stand.  (Fig. 1)
1-2

Open the top board (big) assembly and remove the
speaker grille assembly.  (Fig. 1)

1-3

Remove the five (5) screws marked [89] with the top
board (big) assembly open.  Then raise the lid stay and
carefully lower the top board (big) assembly so the lid
stay tip comes into the recess in the top board (big)
assembly; then, fix the top board (big) assembly.

1-4

Hold up the top board (small) assembly while pulling
it toward you and remove the top board (small)
assembly.  (Fig. 1)

 (Notes)

When opening closing the top board (big) assembly,
be careful not to allow your fingers to be pinched.
Take care not to open the top board (big) assembly too
far.  If it is, excessive load may be applied to its attaching
locations with the resultant damage there.
When removing the top board (small) assembly, make
sure that the keyboard cover is kept closed.  If the top
board (small) is removed with the keyboard cover open,
the cover may be damaged.

[89]

[89]

Recess

Lid stay

Top board assembly(big)

Speaker grille assembly

Top board assembly(small)

[89]:

Truss Head Screw 3.0 

×

 25 MFZN2BL (V669600)

(Fig. 1)

Содержание Clavinova CLP-955

Страница 1: ...ee ECF paper with soy ink CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 UNIT LAYOUT 6 UNIT LAYOUT and WIRING 7 DISASSEMBLY PROCEDURE 8 LSI PIN DESCRIPTION 19 IC BLOCK DIAGRAM 21 CIRCUIT BOARDS 22 TEST PROGRAM 30 INSPECTIONS 32 MIDI IMPLEMENTATION CHART 33 PARTS LIST OVERALL CIRCUIT DIAGARAM BLOCK DIAGRAM R ...

Страница 2: ...anges in specification are subject to change without notice or obligation to retrofit Should any discrepancy appear to exist please contact the distributor s Service Division WARNING Static discharges can destroy expensive components Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit heavy gauge black wires connect to this bus IMPORT...

Страница 3: ...FT SOSTENUTO DAMPER MASTER VOLUME BRILLIANCE DEMO TRANSPOSE FUNCTION METRONOME TEMPO ts FUNCTION SONG SELECT ts NO YES PRESET SONG SPLIT LED Display PHONES 2 AUX OUT R L L R AUX IN R L L R MIDI IN OUT THRU HOST SELECT TO HOST PEDAL AUX OUT Output impedance 600 ohm AUX IN Input impedance 10 kohm Input sensitivity 0 26 V 60 W 2 16 cm 2 5 cm 2 1417 868 885 mm 55 13 16 34 13 16 34 13 16 1417 868 1225 ...

Страница 4: ...F6 G6 A6 B6 C7 MASTER VOLUME MAX MIN DEMO TRANS POSE SPLIT CHURCH ORGAN JAZZ ORGAN STRINGS CHOIR WOOD BASS E BASS GRAND PIANO 1 E PIANO 1 GRAND PIANO 2 E PIANO 2 HARPSI CHORD VIBRA PHONE REVERB ROOM HALL 1 HALL 2 STAGE TOUCH HARD MEDIUM SOFT EFFECT CHORUS SYMPHONIC TREMOLO DELAY METRO NOME TEMPO FUNCTION SONG TEMPO SONG SELECT NO YES START STOP REC TRACK 1 TRACK 2 FUNC TION PRESET SONG FUNCTION BR...

Страница 5: ...onnector and HOST SELECT Switch r MIDI IN THRU and OUT Connectors Bottom Panel Pedals TO HOST HOST SELECT PC 1 PC 2 Mac MIDI AUX IN R L L R AUX OUT R L L R MIDI IN OUT THRU q e w r METRO NOME TEMPO FUNCTION SONG TEMPO SONG SELECT NO YES START STOP REC TRACK 1 TRACK 2 FUNC TION PRESET SONG FUNCTION SONG 1 2 3 4 5 6 7 ...

Страница 6: ... View Front View Top board assembly big Top board assembly small Key cover assembly Side cover assembly End block assembly Keyboard assembly Panel assembly Front rail assembly Log assembly Pedal box assembly Music rest assembly ...

Страница 7: ...N2 Connector Assembly PN1 Connector Assembly DM DJACK Connector Assembly KRD KRD Connector Assembly KRD KRD Connector Assembly VOL Connector Assembly KRD KRD Connector Assembly KRD KRD Connector Assembly GND Connector Assembly 3P 8P 4P 7P 400 9P 600 8P 12P 8P 10P 450 5P 600 11P 200 8P 400 7P 700 2P 150 VS35370 V609080 V202710 VK10970 VK11540 V550670 V609070 V609060 VJ98170 VK11500 VK10290 V222620 ...

Страница 8: ...op board small assembly while pulling it toward you and remove the top board small assembly Fig 1 Notes When opening closing the top board big assembly be careful not to allow your fingers to be pinched Take care not to open the top board big assembly too far If it is excessive load may be applied to its attaching locations with the resultant damage there When removing the top board small assembly...

Страница 9: ...Tapping Screw 1 3 5X12 MFZN2BL EP030340 7 FU120L Assembly 85 Bind Head Tapping Screw 1 3 5X12 MFZN2BL EP030340 4 MA120 Assembly 85 Bind Head Tapping Screw 1 3 5X12 MFZN2BL EP030340 2 PK Connector Assembly 85 Bind Head Tapping Screw 1 3 5X12 MFZN2BL EP030340 2 PEDAL Circuit Board 25c Bind Head Tapping Screw B 3 0X8 MFZN2BL EP600190 4 Power Transformer 86 Bind Head Tapping Screw B 4 0X10 MFZN2BL EP6...

Страница 10: ...screws marked 4A TheA JACK circuit board can then be removed Fig 3 4 D JACK Circuit Board 4 1 Remove the speaker grille assembly and the top board small assembly See Procedure 1 4 2 Remove the JACK unit assembly See Procedure 2 4 3 Remove the six 6 screws marked 4B The D JACK circuit board can then be removed Fig 3 5 FU12L Circuit Board 5 1 Remove the speaker grille assembly and the top board smal...

Страница 11: ...See Procedure 1 6 2 Remove the MA120 assembly See Procedure 2 6 3 Remove the five 5 screws marked 1B the four 4 screws marked 2 and the one 1 screw marked 3 The MA120 circuit board can then be removed Fig 5 7 KEY COVER Assembly 7 1 Remove the speaker grille assembly and the top board small assembly See Procedure 1 7 2 Remove the one 1 screw marked 88 and then the rack cover Fig 6 The right rack co...

Страница 12: ...ard small assembly See Procedure 1 10 2 Remove the key cover assembly See Procedure 7 10 3 Remove the panel assembly See Procedure 8 10 4 Remove the twelve 12 screws marked 220B The PNL circuit board can then be removed Fig 7 11 PNR Circuit Board 11 1 Remove the speaker grille assembly and the top board small assembly See Procedure 1 11 2 Remove the key cover assembly See Procedure 7 11 3 Remove t...

Страница 13: ... HP Circuit Board 15 1 Remove the speaker grille assembly and the top board small assembly See Procedure 1 15 2 Remove the key cover assembly See Procedure 7 15 3 Remove the panel assembly See Procedure 8 15 4 Remove the end block assembly Left See Procedure 12 15 5 Remove the HP Jack assembly See Procedure 14 15 6 Remove the two 2 hex nuts marked A The HP circuit board can then be removed Fig 9 1...

Страница 14: ...18 PL Circuit Board 18 1 Remove the speaker grille assembly and the top board small assembly See Procedure 1 18 2 Remove the key cover assembly See Procedure 7 18 3 Remove the panel assembly See Procedure 8 18 4 Remove the end block assembly L R See Procedure 12 18 5 Remove the keyboard unit See Procedure 16 18 6 Remove the front rail assembly See Procedure 17 18 7 Remove the one 1 screw marked 25...

Страница 15: ...8 screws marked 81 and the eight 8 screws marked 89 The block top can then be removed Fig 13 21 BAFFLE BOARD Assembly 21 1 Remove the speaker grille assembly and the top board small assembly See Procedure 1 21 2 Remove the key cover assembly See Procedure 7 21 3 Remove the panel assembly See Procedure 8 21 4 Remove the end block assembly L R See Procedure 12 21 5 Remove the keyboard unit See Proce...

Страница 16: ...al box assembly with pedal pillars Fig 16 Note The PK connector assembly wire is still connected to the main unit so take care not to damage the bundle wire 24 2 Remove the bundle wire from the main unit Fig 16 24 3 Lay a soft cloth over the floor Place the removed unit on it carefully so as not to damage it Use enough care not to get hurt in this procedure 24 4 Remove the eight 8 screws marked 40...

Страница 17: ... so as not to distort the contact rubber 26 2 AEXL88 L circuit board Remove the seven 7 screws marked 260A The AEXL88 L circuit board can then be removed Fig 19 26 3 AEXL88 H circuit board Remove the ten 10 screws marked 260B The AEXL88 H circuit board can then be removed Fig 19 The white and black keys may be removed together with the AEXL88 L and the AEXL88 H circuit boards 26 4 White key Insert...

Страница 18: ... in the hammer white black key Push down these ends once and then fasten them on the frame hook Fig 25 Take care of the direction of the spring 27 3 White black key Add the white black key to the E part and key guide and make sure that the spring is securely in the recess on the inside of the key board fulcrum Then fasten the white black key while slowly pushing down the upper D part Fig 26 27 4 A...

Страница 19: ... bus Program address bus 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 CMA3 CMA8 CMA2 CRD CMA1 CUB VCC91 GHND92 CS1 CMA0 CLB ...

Страница 20: ...De emphasis select1 mode control BCK De emphasis select2 mode control Latch input format select PCM1716E XU829A00 DAC Digital to Analog Converter DM IC610 PIN No NAME I O FUNCTION PIN No NAME I O FUNCTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 BK5 BK4 BK3 BK2 BK1 BK0 MK15 MK14 MK13 MK12 MK11 MK10 MK05 MK04 MK03 MK02 MK01 MK00 XIN XOUT O O O O O O I I I I I I I I I I I I I O Key block o...

Страница 21: ... 1 2 3 4 5 6 7 A B Select Enable Output B C C G2A G2A G2B G2B G1 G1 Y7 Y7 16 15 14 13 12 11 10 Vcc Y0 Y0 Y1 Y1 Y2 Y2 Y3 Output Y3 Y4 Y4 Y5 Y5 8 GND 9 Y6 A Y6 1 2 3 4 5 6 7 13 12 11 10 9 8 14 1A 1B 1Y 2A 2B 2Y VDD 4B 4A 4Y 3B 3A 3Y Vss 1 2 3 4 5 6 7 1B 1A 1R 1DE 2R 2A 2B 16 15 14 13 12 11 VCC 1D 1Y 1Z 2DE 2Z 2Y 8 GND 9 10 2D 1 2 3 4 5 6 7 Output 1 Inverting Input 1 Non inverting Input 1 DC Voltage ...

Страница 22: ...ton is pressed in this case the display returns to the item selection List of the test program No LED display Initial Test functions and judgement criteria 1 T01 Version Displays ROM version Displays ROM P0 1 W0 1 versions alternately P0 1 PROGRAM Ver 0 1 W0 1 WAVE Ver 0 1 2 T02 ROM Check1 Checks ROM Checks all ROMs connected to CPU s bus Checks that PAS is displayed 3 T03 RAM Check1 Check RAM Che...

Страница 23: ...d with PAS displayed on LCD 32 T32 Soste Pdl Check Checks the sostenuto pedal Carries out the test and checks that if the sostenuto pedal is turned ON C3 is produced and if it is turned OFF C4 is produced with PAS displayed on LCD 33 T33 Damper Check Checks the damper pedal Carries out the test and checks that if the damper pedal is fully stepped down C3 is produced and if it is returned to a non ...

Страница 24: ...TRINGS CHOIR WOOD BASS E BASS SPLIT REBARB EFFECT TOUCH TABLE 1 1 Checking PHONES and AUX OUT 1 1 With 1 kHz 20 dBm sine wave in AUX IN L L R check that AUX OUT output is as follows with no signals on AUX R AUX OUT L L R 10 dBm 2 dB AUX OUT R 60 dBm or less PHONES L 14 dBm 2 dB PHONES R 40 dBm or less 1 2 With 1 kHz 20 dBm sine wave in AUX IN R check that AUX OUT output is as follows with no signa...

Страница 25: ... After key s Touch Ch s Pitch Bender Control Change 0 32 Bank Select 07 Volume 11 Expression 64 Damper 66 Sostenuto 67 Soft pedal 91 Reverb Depth 94 Effect Depth 120 All sounds off 121 Reset All Controllers Program Change True System Exclusive System Song Position Song Select Common Tune System Clock Real Time Commands Aux Local ON OFF All Notes Off Messages Active Sense Reset 123 127 Notes 1 Reci...

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