ELECTRONIC PIANO SERVICE MANUAL CONTENTS(目次) SPECIFICATIONS(総合仕様)··············································· 3 PANEL LAYOUT(パネルレイアウト)···································· 4 DISASSEMBLY PROCEDURE(分解手順) ···························· 7 LSI PIN DESCRIPTION(LSI 端子機能表) ··························· 16 IC BLOCK DIAGRAM(IC ブロック図)································ 21 CIRCUIT BOARDS(シート基板図) ····································· 22 TEST PROGRAM(テストプログラム) ··························· 35/38 FACTORY SET(初期化) ······················································ 41 MIDI IMPLEMENTATION CHART ·········································· 42 MIDI DATA FORMAT ······························································...
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IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.
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AC Power Cord, Foot Pedal FC3, Music Rest, Owner’s Manual, CD-ROM(TOOLS for P-250), TOOLS for P-250 Installation Guide, Data List *1: If you use long file names, or store song files, the P-250 will be able to handle fewer performance files. 総合仕様...
P-250 (分解手順) DISASSEMBLY PROCEDURE CP ユニットの開け方 Opening Control Panel Unit (所要時間:約 3 分) (Time required: about 3 minutes) 棚板下より、 [240]のネジ6本を外し、 CPユニットの手 前を持ち上げて開けます。 (図 1) Remove the six (6) screws marked [240] located under the keybed. (Fig. 1) ※ このとき、CP ユニットを開けすぎて背面の蝶番を壊...
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P-250 Side cover L(腕木L) Side cover R(腕木R) Wheel assembly (Pitch Bend)(ホイールAss'y) Wheel assembly (Modulation)(ホイールAss'y) Speaker grille assembly L Control panel unit Speaker grille assembly R (SPグリルAss'y L) (液晶ディスプレイ) (CPユニット) (SPグリルAss'y R) PN-EQ [730A] [730B] [520] [510B] [510B] [120] [510A] [510A]...
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P-250 AJK シート AJK Circuit Board (所要時間:約 10 分) (Time required: about 10 minutes) CP ユニットを開けます。 (1 項 参照) A ジャック Ass'y を外します。 (2 項 参照) Open the control panel unit. (See procedure 1.) Remove the A-JACK assembly. (See procedure 2.) [260A]のネジ4本、 [A]のU字金具4個を外し、 AJKシー...
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P-250 FU60 Circuit Board FU60 シート (所要時間:約 10 分) (Time required: about 10 minutes) CP ユニットを開けます。 (1 項 参照) Open the control panel unit. (See procedure 1.) FU カバーを外します。 (2 項 参照) (U モデルのみ) FU60Ass'y を外します。 (2 項 参照) Remove the FU cover. (See procedure 2.) (U model only) Remove the FU60 assembly.
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P-250 H.P.Ass'y、HP シート Headphones Jack Assembly, HP Circuit Board (所要時間:約 10 分) (Time required: about 10 minutes) CP ユニットを開けます。 (1 項 参照) [250F]のネジ 2 本、 [750A]のネジ 4 本、 [730C]のネジ 1 Open the control panel unit. (See procedure 1.) Remove the two (2) screws marked [250F], the four (4) 本、...
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P-250 口金 Ass'y Front Rail Assembly (所要時間:約 10 分) (Time required: about 10 minutes) 12-1 CP ユニットを開けます。 (1 項 参照) 12-2 棚板下側から、 [230]のネジ 8 本を外し、鍵盤前金具 12-1 Open the control panel unit. (See procedure 1.) 12-2 Remove the eight (8) screws marked [230] under the Ass'y と一緒に口金...
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P-250 GHD EBUS 鍵盤の分解 Disassembling the Keyboard ※ シートをはずす前に、接点ゴムを歪ませないように、 After inserting a round stick (Rod: TX000670) between the フレームとハンマーの間に丸棒(ロッド:TX000670) frame and the keys, remove the circuit boards. (Fig. 17) を挿入しておきます。 (図 17) Round stick (Rod: TX000670) (丸棒) Fig. 17(図17) 14-1 GHD EBUS L, MK SUB Circuit Board 14-1 GHD EBUS L, MK SUB シート...
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P-250 14-4 白鍵 14-4 White key Insert a thin plate between the white keys, near the triangle 薄い金尺状のものを鍵盤の間に挿入して (白鍵盤支点 付近の三角マークの示す方向側の隙間) [D]のストッ mark around the fulcrum of the key, and press down the stopper marked [D] to remove the key. (Fig. 19, Fig. 20) パーを下げ、...
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P-250 GHD EBUS 鍵盤の組立 Assembling the Keyboard 15-1 ハンマー白鍵(ハンマー黒鍵) 15-1 Hammer, White Key (Hammer, Black Key) GHD EBUS鍵盤の裏側より、 ハンマー白鍵 (黒鍵) を Place the keyboard assembly upside-down, insert a ham- フレームに差し込み、 ストッパー(L88̲W)を取り付 mer assembly into the frame, and put the stopper (L88_W) けます。 (図 23)...
P-250 (LSI 端子機能表) LSI PIN DESCRIPTION µ PD780031AYGK-NO1-9ET (XZ916100) LED DRIVER/SWITCH SCAN ········································ 16 µ PD780031AYGK-NO2-9ET (X0031100) LKS ·················································································· 16 HD6417709SHF200B (X2687A00) CPU (SH3) ················································································· 17 T8F02TB-0102 (X0060A00) SWP50 ·································································································· 18 M66291GP (X2156A00) USB Controller ·························································································· 20 PCM1730E-1/2K (X2077A00) DAC (Digital to Analog Converter) ····················································· 20...
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P-250 HD6417709SHF200B (X2687A00) CPU (SH3) DM: IC014 NAME FUNCTION NAME FUNCTION CK enable / Port K CKE/PTK5 Mode control RAS3L/PTJ0 RAS address bus / Port J Vcc(RTC) Power supply +1.8 V PTJ1 Port J XTAL2 CASL/PTJ2 CAS address bus / Port J...
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P-250 T8F02TB-0102 (X0060A00) SWP50 DM: IC012 OUTER OUTER NAME FUNCTION NAME FUNCTION VSS2 Ground VSS2 Ground VDDC Power supply +1.5 V VDDC Power supply +1.5 V CD15 HMA15 CD13 HMA16 Wave memory address bus CD14 HMA22 HMA25 VDDS Power supply +3 V...
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P-250 OUTER OUTER NAME FUNCTION NAME FUNCTION AB22 VSS2 Ground VSS2 Ground AC23 VDDC Power supply +1.5 V VDDC Power supply +1.5 V AD24 DMAL1 MELI6 MEL wave data input AE25 DCSL2 MELI7 ADLR Power supply +3 V AF26 DRAS0...
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P-250 M66291GP (X2156A00) USB Controller DM: IC002 NAME FUNCTION NAME FUNCTION Core Vcc Core power supply Ground USB data (-) USB data (+) Vbus V bus input Data bus Tr ON Tr ON output TEST TEST input D8/P0 /Dack1 DMA reception signal 1...
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P-250 (IC ブロック図) IC BLOCK DIAGRAM TC74VHC14FT (XV890A00) TC74VHC32FT (XY945A00) TC74VHCT245AFT (XT744A00) Hex Inverter Quad 2 Input OR Octal 3-State Bus Transceiver DM: IC006 DM: IC007 DM: IC009, 010 SN75C1168NSR (XU073A00) TC7SU04F (XY447A00) TC7WH32FU(TE12L) (XY364A00) Line Driver/Receiver Inverter Gate Dual 2 Input OR Gate...
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P-250 AJK Circuit Board not installed not installed L/MONO L/MONO INPUT OUTPUT (部品側) Component side (パターン側) Pattern side 2NA-V849970...
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P-250 DM Circuit Board not installed to DJK-CN8 not installed to AJK-CN500 not installed to DJK-CN5 not installed to PNL-CN101, to DJK-CN6 not installed PN-EQ-CN10, (部品側) Component side EBUS2 wire harness (to GHD EBUS L-CN1) 2NA-V755310-4...
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P-250 DM Circuit Board (パターン側) Pattern side 2NA-V755310-5...
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P-250 PNL Circuit Board to DM-CN4, PN-EQ-CN10, EBUS2 wire harness (to GHD EBUS L-CH1) to WHEEL Ass'y TRACK1 SONG SELECT SONG BALANCE NEW SONG SYNCHR 2NA-V845480-1, 2...
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P-250 to PNR-CN81 to PNR-CN71 EXTRA TRACK1 TRACK2 TRACKS SONG FILE MIDI OUT PANEL LOCK DOWN START/ SONG SETTING STOP TEMPO SYNCHRO START SONG (部品側) Component side (パターン側) Pattern side 2NA-V845480-1, 2...
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P-250 PNR Circuit Board to LCD to DM-CN1 to DM-CN2 to PNL-CN80 GRAND GRAND E.PIANO 1 E.PIANO 2 E.PIANO 3 PIANO 1 PIANO 2 CONTRAST SYNTH. ORGAN 1 ORGAN 2 STRINGS CHOIR EXIT VOICE/PERFORMANCE PN-EQ Circuit Board to PNL-CN101, DM-CN4,...
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P-250 to PNL-CN70 HARP- VIBRA- CLAVI. SICHORD PHONE VOICE SPLIT REVERB CHORUS PERFORMANCE MIDI SETTING EDIT VARIATION MASTER EQ EDIT GUITAR BASS OTHER SETTING PERFORM. FILE Component side (部品側) FU60 Circuit Board to Power Transformer (Primary) to POWER Switch not installed...
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P-250 GHD EBUS L Circuit Board V851480 Component side (部品側)...
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P-250 GHD H Circuit Board to GHD M-CN2 Component side (部品側) 2NAK8-V852140...
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P-250 GHD M Circuit Board (部品側) Component side 2NAK8-V852150...
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P-250 DJK Circuit Board not installed not installed to DM-CN8 to DM-CN5 to MA60-CN4 to DM-CN3 to DM-CN7 THRU TO HOST MIDI PC-2 MIDI HOST SELECT (部品側) Component side ASSIGNABLE FOOT PEDAL (パターン側) Pattern side PJK Circuit Board ASSIGNABLE FOOT PEDAL...
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P-250 MA60 Circuit Board MK SUB Circuit Board not installed to GHD EBUS L-CN5 to GHD EBUS L-CN4 (部品側) Component side to DJK-CN10, not installed AJK-CN540 (部品側) Component side CAUTION: REPLACE WITH SAME TYPE 5A 125V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 5A 125V.
While pressing the [C#2], [F2] and [G#2] keys, turn on the [POWER] switch. 3. Proceeding through the Test Program When the test program is activated, the sign “TEST P-250” appears on the LCD display. Select the test program item by pressing the [UP ] or [DOWN ] button of [TEMPO].
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P-250 LCD (initial) Test Function and Judgment criteria 012:EQ Low Checks the EQ-LOW frequency. Measured value: - 4.0 dBm +/-2 dB Measurement terminal Outputs the sine wave at about 65.4 Hz (C1). (PAN=Center) MA60-CN6 013:EQ Mid Checks the EQ-MID frequency.
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P-250 LCD (initial) Test Function and Judgment criteria 032:To Host Chk Short-circuit between pins 3 and 5, pins 6 and 8 of the [TO HOST] terminal and perform the test. Change the [HOST SELECT] switch position according to the LCD indication and check that the following tone is output at each postiion.
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[MODULATION]: 最小 MASTER EQ. [LOW]−[HIGH]: 中央 2. テストプログラムの起動 [C2#]と[F2]と[G2#]の鍵盤を同時に押さえながら、 [POWER]スイッチをON にします。 3. テストの進め方 テストプログラムが起動されると、LCD に TEST P-250 と表示されます。 [TEMPO]の[UP ]、 [DOWN ]ボタンを押して、テストプログラムの項目を選択します。 [MIDI OUT]ボタンを押して、テストを実行します。 結果が OK の場合は、再度[MIDI OUT]ボタンを押して項目選択表示に戻します。 [TEMPO]の[UP ]、 [DOWN ]ボタンを押して、次のテスト項目を選択します。 テスト結果が OK だった項目には、項目名の先頭に * (アスタリスク)が表示されます。 テスト結果が NG の場合は、 [SONG SELECT]の[ ]ボタンを押して、項目選択表示に戻します。 その後、 [POWER]スイッチを OFF にして、テストプログラムを終了します。...
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P-250 LCD 表示 テスト内容及び判定条件など EQ-LOW 周波数チェック 測定値:-4.0 dBm ± 2 dB 012:EQ Low 測定端子 65.4Hz(C1)の正弦波を PAN =センターで出力します。 MA60-CN6 013:EQ Mid EQ-MID 周波数チェック 測定値:-5.0 dBm ± 2 dB 1 pin: L ch 523Hz(C4)の正弦波を PAN =センターで出力します。 3 pin: R ch EQ-HIGH 周波数チェック 測定値:-2.0 dBm ± 2 dB 014:EQ High 2, 4 pin: GND 4186Hz(C7)の正弦波を PAN =センターで出力します。 015:D/A Noise 押鍵発音時、ビット落ちノイズ等が無いことを確認します。 LCD に D/A Noise OK と表示されます。...
[POWER] switch to turn on the power す)にしても、 基本設定に戻すことができます。 この場合、 保存用メモリーの中のファイルは消去されません。保存 to the P-250. The files saved in storage memory are not erased. If you wish to erase the files in memory at this time, press and 用メモリーの中のファイルも同時に消去したい場合は、...
P–250 MIDI DATA FORMAT Many MIDI messages listed in the MIDI Data Format are expressed in decimal numbers, binary numbers and hexadecimal numbers. Hexadecimal numbers may include the letter “H” as a suffix. Also, “n” can freely be defined as any whole number. To enter data/values, refer to the table below. Decimal Hexadecimal Binary...
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P–250 MIDI CHANNEL MESSAGE (1) O: available Status byte 1st Data byte 2nd Data byte MIDI Reception (respond/ignore) MIDI Transmission (generated data) PLAY Main MIDI Events Panel Recorded Status Data (HEX) Parameter Data (HEX) Parameter Song Layer Left Keyboard Song MIDI PLAY (main generation method)
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P–250 MIDI CHANNEL MESSAGE (2) Parameters controlled by NRPN (Non-Registered Parameter Numbers) NRPN Data Entry MIDI Reception (respond/ignore) MIDI Transmission (generated data) PLAY Main Parameter Data Range Panel Recorded Song Layer Left Keyboard Song MIDI PLAY (main generation method) from panel LeftLayer Vibrato Rate mm : 00H-40H-7FH (-64...0...+63)
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P–250 MIDI Parameter Change table (SYSTEM INFORMATION) MIDI Reception (respond/ignore) MIDI Transmission (generated data) PLAY Address Size Data Main Parameter Data Range Panel Recorded Song Layer Left Keyboard Song MIDI PLAY (main generation method) from panel LeftLayer 20-7F Model Name 1 32...127(ASCII CHARACTER) 20-7F Model Name 14...
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P–250 MIDI Reception (respond/ignore) MIDI Transmission (generated data) PLAY Address Size Data XG Default Main Parameter Data Range Panel Recorded Song Layer Left Keyboard Song MIDI PLAY (main generation method) from panel LeftLayer 00-7F VARIATION TYPE MSB Refer to Effect Parameter List 05(=DELAY L,C,R) 00-7F VARIATION TYPE LSB...
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P–250 MIDI Reception (respond/ignore) MIDI Transmission (generated data) PLAY Address Size Data Main Parameter Data Range Panel Recorded Song Layer Left Keyboard Song MIDI PLAY (main generation method) from panel LeftLayer 00-7F INSERTION EFFECT PARAMETER 1 MSB Refer to Effect Parameter List O (* Depends on Insertion Type) 00-7F INSERTION EFFECT PARAMETER 1 LSB...
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P–250 MIDI Reception (respond/ignore) MIDI Transmission (generated data) PLAY Address Size Data XG Default Main Parameter Data Range Panel Recorded Song Layer Left Keyboard Song MIDI PLAY (main generation method) from panel LeftLayer 00-01 Rcv PITCH BEND OFF, ON 00-01 Rcv CH AFTER TOUCH(CAT) OFF, ON 00-01...
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– TOTAL SIZE n: Drum Setup Number (0-1) rr: note number (0D-5B) In the following cases, the P-250 will initialize all Drum Setups. XG SYSTEM ON received GM SYSTEM ON received DRUM SETUP RESET received (only when in XG mode) •...
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Panel Song Keyboard Song MIDI LeftLayer (main generation method) 50 11 0n 02 dd F7 F0= Exclusive status 11110000 43= YAMAHA ID 01000011 73= Clavinova ID 01110011 String 01= Model ID (Clavinova common ID) 00000001 Resonance 50= SubID 01010000 (Other Setting)
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P-250 P-250 OVERALL CIRCUIT DIAGRAM 1/4 (DM) REGULATOR +2.0V REGULATOR +1.5V (+VCC-ADJ) RESET to PNR-CN91 to PNR-CN92 FLASH ROM SDRAM 64M MASK ROM BUFFER to PJK-CN10 to DJK-CN5 to DJK-CN1 to PJK-CN11 FLASH ROM FLASH ROM SDRAM 64M to PNL-CN101,...
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P-250 P-250 OVERALL CIRCUIT DIAGRAM 2/4 (GHD EBUS L, MK SUB, GHD M, GHD H, WML, WMH) (A-1 ~ F2 # ) GHD EBUS L MK SUB to PN-EQ-CN10, PNL-CN101, DM-CN4 Not installed not installed 28CC1-8819224 28CC1-8819027 to DM-CN14 (WML)