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PARTS LIST このサービスマニュアルはエコパルプ (ECF: 無塩素系漂白パルプ)を使用しています。 BLOCK DIAGRAM(ブロックダイアグラム) このサービスマニュアルは 大豆油インクで印刷しています。 OVERALL CIRCUIT DIAGRAM(総回路図) This document is printed on chlorine free (ECF) paper with soy ink. PK 000344 P-120 20011015-160000 P-120S HAMAMATSU, JAPAN L-120 20011015-9000 L-120S 1.702K-5011 Printed in Japan ’01, 09...
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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.
P-120/P-120S I DISASSEMBLY PROCEDURE ( 分 解 手 順 ) Lay the soft cloth under the unit to protect it from 作業を行うときは、本体に傷がつくのを防ぐた め、やわらかい布などを敷いてください。 being scratched. Top Board Assembly (Time required: about 2min) 屋根Ass'y( 所要時間:約2分) Apply a masking tape to the edge of the top board 屋根Ass'yのふちにマスキングテープなどを貼...
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P-120/P-120S DMシート( 所要時間:約3分) DM Circuit Board (Time required: about 3min) 屋根Ass'yを外します。(1項参照) Remove the top board assembly. (See procedure.1) Remove the two (2) screws marked [290a] and the [290a]のネジ2本と[320]のネジ2本を外し、DM シートを外します。(Fig.4) two (2) screws marked [320]. The DM circuit board can then be removed. (Fig.4) 屋根Ass'yを取り付けるとき、腕木Ass'yに傷が...
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P-120/P-120S PNLシート( 所要時間:約3分) PNL Circuit Board (Time required: about 3min) [80]のスライドツマミ2個を外します。(Fig.5) Remove the two (2) slide knobs marked [80]. (Fig.5) 屋根Ass'yを外します。(1項参照) [240a]のネジ2本と、[300]のネジ2本を外し、パ Remove the top board assembly. (See procedure.1) Remove the two (2) screws marked [240a] and two ネル補強金具を外します。(Fig.6) (2) screws marked [300]. The panel angle assembly [130b]のネジ8本と[240b]のネジを外し、PNL...
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P-120/P-120S DJACKシート( 所要時間:約5分) DJACK Circuit Board (Time required: about 5min) 屋根Ass'yを外します。(1項参照) Remove the top board assembly. (See procedure.1) Remove the keyboard assembly. (See procedure.7) 鍵盤Ass'yを外します。(7項参照) 本体の底面より[230a]のネジ4本と[360]のネジ1 Remove the four (4) screws marked [230a] and the screw marked [360] from the bottom of the unit.
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P-120/P-120S AJACKシート、SWシート( 所要時間:約6分) AJACK Circuit Board, SW Circuit Board (Time required: about 6min) 屋根Ass'yを外します。(1項参照) Remove the top board assembly. (See procedure.1) 鍵盤Ass'yを外します。(7項参照) 腕木Ass'y Lを外します。(8-3項参照) Remove the keyboard assembly. (See procedure.7) Remove the side cover assembly L. (See proce- [240b]のネジ3本を外し、AJACKシートAss'yを dure.8-3) 外します。(Fig.12)
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P-120/P-120S 口棒Ass'y( 所要時間:約8分) Front Rail Assembly (Time required: about 8min) 11-1 屋根Ass'yを外します。(1項参照) 11-1 Remove the top board assembly. (See procedure.1) 11-2 Remove the keyboard assembly. (See procedure.7) 11-2 鍵盤Ass'yを外します。(7項参照) 11-3 腕木Ass'y L, Rを外します。(8-3項、10項参照) 11-3 Remove the side cover assembly (L) and the side cover assembly (R).
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P-120/P-120S Take care not to damage the key spring when ※ このとき、白鍵を前方にずらしすぎてスプリン グを傷めないように、十分注意して作業をして removing a key. A black key can be removed after both adjacent ください。 ※ 黒鍵は、両隣の白鍵を外すと、外すことができます。 white keys have been removed. 12-5 Hammer, White Key 12-5 ハンマー白鍵 After a key has been removed, push the key spring 白鍵を外し、スプリングを一度下に押し込み、...
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P-120/P-120S 13-3 White (Black) Key 13-3 白鍵 (黒鍵) [C] 部とキーガイドに白鍵 (黒鍵) をくわえさ After a key has been fit to part [F] and the key guide, make sure that the spring is fixed to the key. せ、鍵盤の支点内側のバネ受け部に、スプリン グが確実に入っていることを確認したら、 [B] Then press part [E] of the key down. (Fig.22) 13-4 GHDcl SW L circuit board.
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P-120/P-120S HG73C205AFD (XU947C00) SWX00B TONE GENERATOR DM : IC007, 008 NAME FUNCTION NAME FUNCTION Initial clear CMA3 RFCLKI PLL Clock CMA8 Program address bus PLL Control CMA2 AVDD_PLL Power supply read signal AVSS_PLL Ground CMA1 Program address bus MODE0 SWX dual mode...
P-120/P-120S YMZ702-D (XR632A00) KSN2 (Key Scanner) GHDcl SW L KSN2 NAME FUNCTION NAME FUNCTION Ground Power supply Serial data Key block (open drein) Acknowledge/mode select Clock for serial data Initial clear MK15 TST1 Test mode MK14 TST2 (L,L: normal mode, others: test)
P-120/P-120S SN75C1168NST-E (XU073A00) PC4570G2 (XF291A00) Line Driver / Receiver Dual Operational Amplifier DJACK: IC002 DM: IC013, 022 AJACK: IC101, 102 +DC Voltage Output A Supply Inverting Output B Input A Inverting Non-Inverting Input B Input A Non-Inverting -DC Voltage Supply...
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P-120/P-120S DM Circuit Board Note: See parts list for details of circuit board component parts. 注:シートの部品詳細はパーツリストをご参照ください。...
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P-120/P-120S AMP Circuit Board to AJACK CN103 to Speaker L Component Side(部品側) Note: See parts list for details of circuit board component parts. 注:シートの部品詳細はパーツリストをご参照ください。 2NA-V802050...
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P-120/P-120S AJACK Circuit Board Note: See parts list for details of circuit board component parts. 2NA-V790950 注:シートの部品詳細はパーツリストをご参照ください。...
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P-120/P-120S AJACK Circuit Board Note: See parts list for details of circuit board component parts. 2NA-V790950 注:シートの部品詳細はパーツリストをご参照ください。...
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P-120/P-120S DJACK Circuit Board SUSTAIN MIDI AUX PEDAL PEDAL HOST SELECT TO HOST to DM CN6 Component Side (部品側) Pattern Side (パターン側) SW Circuit Board STANDBY/ Pattern Side (部品側) (パターン側) to AJACK CN101 Component Side DJACK: 2NA-V790950 Note: See parts list for details of circuit board component parts.
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P-120/P-120S PNR Circuit Board GRAND PIANO1 E.PIANO2 GRAND PIANO2 E.PIANO1 to PNL CN102 to PNL CN101 TRACK1 TRACK2 START/STOP CHURCH JAZZ STRINGS CHOIR ORGAN ORGAN HALL3 HALL2 HALL1 E.CLAVI CHORD HARPSICHORD VIBRAPHONE VARIATION ROOM CHORUS HARD MEDIUM TRANSPOSE SOFT REVERB...
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P-120/P-120S PNL Circuit Board TEMPO to PNR CN202 to PNR CN201 to AJACK CN104 to DM CN2 to DM CN1 MASTER VOLUME BRILLIANCE DEMO METRONOME START/STOP FUNCTION # TEMPO DOWN TEMPO UP TEMPO/FUNCTION # USER1 USER2 PRESET SONG SONG -/NO...
P-120/P-120S I TEST PROGRAM Preparation • To check the unit, the following measuring instruments and jigs are required. Measuring instruments: Frequency counter (Input impedance 1MΩ or more) Level meter (JIS-C curve) Oscilloscope Jigs:Foot Switch FC4 MIDI cable Serial cable (in which pin 3 and pin 5, pin 6 and pin 8 are short-circuited respectively) •...
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P-120/P-120S Test Items 7-seg. LED Test Function and Judgment criteria etc. (01: ROM Version Check Checks ROM version. Make sure that the 7-seg.LED alternately indicates "Px.x" (version of the pro- gram) and "Uy.y" (version of the wave). (02: ROM Check 1 Checks the ROMs on CPU bus.
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P-120/P-120S Connect a level meter to the [AUX OUT LEVEL FIXED L] jack and the [AUX OUT LEVEL FIXED R] jack. (Application load is 10kΩ) Acceptable level ranges are as follows. L: -75.0 [dBm] or less R: +1±2 [dBm] (15: Output Level L Check Connect a level meter to the [PHONES] jack.
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P-120/P-120S Connect a level meter to the [AUX OUT LEVEL FIXED L] jack and the [AUX OUT LEVEL FIXED R] jack. (Application load is 10kΩ) Acceptable level range is as follows. L, R: -90.0 [dBm] or less (20: SW, LED Check Press the appropriate switch for the number which the 7-seg.LED indicates,...
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P-120/P-120S (42: RAM Check 2 This test checks all the RAMs. The 7-seg.LED indicates the test result as follows. When the result is good: PAS When the result is no good: nG (43: Wave ROM Check 2 This test checks all the Wave ROMs.
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P-120/P-120S テスト項目 番号 LED 表示 テスト内容および判定条件など (01: ROM バージョン 7 セグ LED に "Px.x" (プログラムのバージョン) と "Uy.y" (ウェーブのバージョ チェック ン)が、交互に表示されることを確認します。 (02: ROM チェック 1 CPU バス上の ROM がチェックされます。 7 セグ LED に以下の判定結果が表示されることを確認します。 OK のとき: PAS NG のとき: nG (03: RAM チェック 1 CPU バス上の...