Kawai MP4 Service Manual
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Kawai MP4 Service Manual

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MP4

Service Manual

Manufacturing Date April 2005
Kawai Musical Instruments
Manufacturing Co., Ltd.
SE981E-S0504

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Summary of Contents for Kawai MP4

  • Page 1: Service Manual

    Service Manual Manufacturing Date April 2005 Kawai Musical Instruments Manufacturing Co., Ltd. SE981E-S0504...

  • Page 2: Table Of Contents

    I Contents Specifications ..............3 P.W.B. KEP-126 Circuit 2/4 ..........19 Hardware List ..............4 P.W.B. KEP-126 Circuit 3/4 ..........20 Case Assembly ..............5 P.W.B. KEP-126 Circuit 4/4 ..........21 Panel Assembly ............... 6 P.W.B. KEP-179 – 185 (1) Assembly ......22 Keyboard Unit (RG88 Type) ..........

  • Page 3: Specifications

    I Specifications Keyboard 88 Keys with Advanced Hammer Action IV Max. Polyphony 96 Voices Sound Harmonic Imaging Technology. 64 Sounds. Piano (8), E. Piano (12), Mallet (2), Clavi (2), Organ (2), Harpsicord (1), Drawbar (13), Strings (4), Brass (4), Vocal (3), Pad (5), Bass (8). Setup 64 Setup Memories 4 Band (±...

  • Page 4: Hardware List

    I Hardware List Type Size Remarks +Binding Head Machine Screw M2.6 x 4 +Binding Head/S-Tite 3 x 6, 8/4 x 8 +Binding Head/S-Tite 3 x 10 Black Chromating +Binding Head/P-Tite 3 x 6/4 x12 +Binding Head/P-Tite 3 x 10 Black Chromating +Truss Head Tapping #1 4 x 12, 16 +Truss Head Tapping #1...

  • Page 5: Case Assembly

    I Case Assembly Screws Washer (M7) Screws Screws (3x10) (3x10) Nut (M7) Screws (3x6) (3x6) KEP-186 Nut (M7) KEP-126 < Case Parts List > Screws Screws Washer KEP-179 (3x6) (4x12) (M7) Screws No. Code No. Name Description Q’ty Screws (3x6) (4x16) Screws 948229 Key Bed...

  • Page 6: Panel Assembly

    I Panel Assembly No. Code No. Name Description Q’ty 814891 Wheel Knob 811555 Key Top 813702 LCD Cover 939900 Slide VR Cover 812630 Slide VR Cover Cloth 804969 Slide VR Knob 811799 Rotary Volume Knob 814853 LCD PMC16021E8-SBL 813805 USB Connecter YKF45-0002 10 808473 MIDI Jack YKF51-5053...

  • Page 7: Keyboard Unit (Rg88 Type)

    I Keyboard Unit (RG88 Type) <Keyboard Parts List> Code No. Parts Name Description Q’ty Code No. Parts Name Description Q’ty 814849 Complete Keyboard Unit 947907A Hammer Assy (White Key Low) Key No. 1- 15 814651 White Key (C) 947908A Hammer Assy (White Key Mid-Low) Key No.

  • Page 8: Keyboard Disassembling Procedure

    I Keyboard Disassembling Procedure First, remove the keyboard fixing screws (10 pcs.) at the bottom of the piano and slide the Keyboard unit backward. <How to take a key off> <How to take a hammer off> 1. Lift the hammer at the fulcrum point. 1.

  • Page 9: Electronic Parts List

    I Parts List Electronic Parts List Code No. Parts Name Q'ty Parts Number Remarks Model 237769 P.W.B. Assy KEP-126 (22) 237770 P.W.B. Assy KEP-179~185 (1) PANEL,HP 237773 P.W.B. Assy KEP-186~189 (2) ANALOGS,A/D,JACK,POWER 120V 237774 P.W.B. Assy KEP-186~189 (3) ANALOGS,A/D,JACK,POWER 230V 237772 P.W.B.

  • Page 10: P.w.b. Kep-126 Assembly Parts List

    P.W.B. KEP-126 Assembly Parts List Code No. Parts Name Q'ty Parts Number Parts Address 812215 MB91101APF-G 814414 K022-FP 810368 Voltage Regulator NJM78L05UA-TE1 µ PC2933AT 813047 Voltage Regulator 812219 OP AMP NJM4580E-T1 U13,14,18 237690 Flash ROM KP448A-F9FP 814848 DRAM GLT440L16-35TC 814416 SRAM UT62L2568LS-70LL/UT62L2568LS-70LLI U9 814854...

  • Page 11: Kep-179 ~ 185 Assembly Parts List

    P.W.B. KEP-179~185 (1) Assembly Parts List Code No. Parts Name Q'ty Parts Number Parts Address KEP-179 (Panel Left) 813111 EL3105VRT/TR1-11 (A) LED1,2,3,4,5,6,11,12 814696 GL2HD6 LED7,8,9,10 812662 GL2EG6 LED13,14,15,16 813838 SPR-325MVW LED17,18,19,20 800625 Diode 1SS133T-77 D1,2,3,4,5,6,7,8,9,10,11,12 808345 Switch EVQ21305R/KSH0612AT SW1,2,3,4,5,6,7,8,9,10,11,12 804643 Slide Volume RS30111AC015A VR2,3,4,5...

  • Page 12: Kep-186 ~ 189 Assembly Parts List

    P.W.B. KEP-186~189 (2)(3) Assembly Parts List Code No. Parts Name Q'ty Parts Number Parts Address Model KEP-186 (A/D Joint, ANALOG) 803995 LOGIC TC74HC4051AP U2,4 808457 LOGIC HD74HC595P 808098 OP-AMP NJM3404AD 809426 OP-AMP BA15532 U9,10 812222 OP-AMP LA6517 808973 Transistor DTA114ESATP 812527 Transistor 2SC5395-T12-E...

  • Page 13: Kep-099 Assembly Parts List

    Code No. Parts Name Q'ty Parts Number Parts Address Model 811711 High Voltage Capacitor DE1E3KX472MB5BA01 C75,78 805992 Electrolytic Capacitor ESMG6R3ELL102MHB5D C83 807041 Electrolytic Capacitor ESMG6R3ELL332MJ20S C81 707418 Electrolytic Capacitor ESMG160ELL470ME11D C84 809769 Electrolytic Capacitor ESMG250ELL4R7ME11D C69,71 808738 Electrolytic Capacitor ESMG250ELL471MJC5S C67 807403 Electrolytic Capacitor ESMG250ELL222MK25S C68,70...

  • Page 14: Cable Wiring Specification

    I Cable Wiring Specification CN-7 CN-9 CN-4 KEP-181 CN-5 KEP-179 KEP-182 KEP-180 CN-3 CN-2 CN-1 CN-10 CN-8 CN-6 CN-1 KEP-126 CN-4 CN-3 CN-7 CN-6 CN-9 CN-14 CN-1 CN-10 KT-026 BROWN CN-16 CN-11 KEP-186 CN-15 CN-21 BLUE CN-14 CN-15 CN-17 CN-2 CN-18 KEP-189 CN-13...

  • Page 15: Block Diagram

    I Block Diagram – 15 –...

  • Page 16: Kep-126 (22) Assembly [Top]

    I P.W.B. KEP-126 (22) Assembly [TOP] X : Not Mounted – 16 –...

  • Page 17: Kep-126 (22) Assembly [Back]

    I P.W.B. KEP-126 (22) Assembly [Back] X : Not Mounted – 17 –...

  • Page 18: Kep-126 Circuit 1/4

    I P.W.B. KEP-126 Circuit 1/4 – 18 –...

  • Page 19: Kep-126 Circuit 2/4

    I P.W.B. KEP-126 Circuit 2/4 – 19 –...

  • Page 20: Kep-126 Circuit 3/4

    I P.W.B. KEP-126 Circuit 3/4 – 20 –...

  • Page 21: Kep-126 Circuit 4/4

    I P.W.B. KEP-126 Circuit 4/4 – 21 –...

  • Page 22: Kep-179 - 185 (1) Assembly

    I P.W.B. KEP-179 – 185 (1) Assembly Name KEP-179 ZONE SELECT 4 ZONE SELECT 3 ZONE SELECT 2 ZONE SELECT 1 EFFECT ZONE ON/OFF 1 ZONE ON/OFF 2 ZONE ON/OFF 3 SW10 ZONE ON/OFF 4 SW11 TONE MODIFY SW12 MIDI CC# KEP-180 SW13 SW SW14 EFX...

  • Page 23: Kep-179 - 185 Circuit 1/2

    I P.W.B. KEP-179 – 185 Circuit 1/2 – 23 –...

  • Page 24: Kep-179 - 185 Circuit 2/2

    I P.W.B. KEP-179 – 185 Circuit 2/2 – 24 –...

  • Page 25: Kep-186 - 189 (2) Assembly

    I P.W.B. KEP-186 – 189 (2) Assembly X : Not Mounted – 25 –...

  • Page 26: Kep-186 - 189 (3) Assembly

    I P.W.B. KEP-186 – 189 (3) Assembly X : Not Mounted – 26 –...

  • Page 27: Kep-186 - 189 Circuit 1/3

    I P.W.B. KEP-186 – 189 Circuit 1/3 – 27 –...

  • Page 28: Kep-186 - 189 Circuit 2/3

    I P.W.B. KEP-186 – 189 Circuit 2/3 – 28 –...

  • Page 29: Kep-186 - 189 Circuit 3/3

    I P.W.B. KEP-186 – 189 Circuit 3/3 – 29 –...

  • Page 30: Kep-099 (3) Assembly

    IP.W.B. KEP-099 (3) Assembly X : Not Mounted – 30 –...

  • Page 31: Kep-099 Circuit

    I P.W.B. KEP-099 Circuit – 31 –...

  • Page 32: Kkb-015 Circuit

    I P.W.B. KKB-015 Circuit ....c t i c t i – 32 –...

  • Page 33: Key Switch Matrix

    I Key Switch Matrix – 33 –...

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