Kawai ES4/es1P Service Manual
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Kawai ES4/es1P Service Manual

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DIGITAL PIANO
ES4/es1P

Service Manual

Manufacturing Date June 2005
Copyright © 2006 Kawai Musical Instruments Mfg. Co.,Ltd. All rights reserved.
Kawai Musical Instruments
Manufacturing Co., Ltd.
SE984E-S0512
month of issue: January 2006

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Summary of Contents for Kawai ES4/es1P

  • Page 1: Service Manual

    DIGITAL PIANO ES4/es1P Service Manual Manufacturing Date June 2005 Kawai Musical Instruments Manufacturing Co., Ltd. SE984E-S0512 month of issue: January 2006 Copyright © 2006 Kawai Musical Instruments Mfg. Co.,Ltd. All rights reserved.

  • Page 2: Table Of Contents

    I Contents Specifications ..............3 P.W.B. KEP-126 Circuit 1/4 ..........18 Hardware List ..............4 P.W.B. KEP-126 Circuit 2/4 ..........19 Opening Procedure ............5 P.W.B. KEP-126 Circuit 3/4 ..........20 Case Assembly ..............6 P.W.B. KEP-126 Circuit 4/4 ..........21 Keyboard Unit (RG88 Type) ..........

  • Page 3: Specifications

    I Specifications Model es1P Keyboard 88 Keys with Advanced Hammer Action IV Polyphony Maximum 96 Preset Tones Piano (3), E. Piano (3), Organ (3), Piano1 (4), Piano2 (4), E.Piano (4), Organ (4) Harpsi/Mallets (3), Strings (3), Choir/Pad (3), Harpsi (4), Strings (4), Choir/Bass (4) Bass (3) Effects Chorus, Delay (3), Tremolo, Rotary (2)

  • Page 4: Hardware List

    I Hardware List Q'TY PARTS NAME CODE No. SIZE es1P +Bind/B-Tite 797980 3 x 12 +Bind/B-Tite 798484 3 x 16 +Bind/B-Tite 798325 3 x 8 +Bind/P-Tite 797983 3 x 16 +Bind/P-Tite/Black Chromating 798425 3 x 10 +Bind/S-Tite 798030 3 x 8 +Bind/S-Tite/Black Chromating 812650 3 x 10...

  • Page 5: Opening Procedure

    I Opening Procedure * Screw No.: Refer to Screw List No.11 Screw (M5 x 25) No.12 Screw (M4 x 16) No.11 Screw (M5 x 25) – 5 –...

  • Page 6: Case Assembly

    I Case Assembly CODE NO. PARTS NAME Q'TY ES4B es1PB es1PW ARM L 815027 815027 815031 JACK PANEL L 814998 814998 GROUND TERMINAL 810784 810784 SUPPORT FITTING L 815000 815000 CHEEK BLOCK L 815033 815033 815037 WOOD BLOCK 815040 815040 KEP-196 INSERT NUT 815026...

  • 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 10 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. Spread the key at fulcrum point and lift it up. (We recommend to use Snap Ring pliers. 1.

  • Page 9: Electrical Parts List

    I Parts List Electrical Parts List Code No. Parts Name Q'ty Parts Number Remarks Model 237806 P.W.B. Assy KEP-126 (23) 237807 P.W.B. Assy KEP-126 (24) es1P 237808 P.W.B. Assy KEP-196 – 198 (1) PANEL 237809 P.W.B. Assy KEP-192 – 194 (1) ANALOG 237810 P.W.B.

  • Page 10: Kep-126 (23), (24) Assembly Parts List

    P.W.B. KEP-126 (23), (24) Assembly Parts List Code No. Parts Name Q'ty Parts Number Parts Address 812979 KP430-F7FP (MB91F109PF-G) 814414 K022-FP MB87L8040 814435 RESET IC BD5245 FVE-TR 810368 REGULATOR NJM78L05UA-TE1 812219 OP-AMP NJM4580E-T1 U13,14,18,22 µPC2933AT-E1 813047 REGULATOR 814447 FLASH ROM KP461-F9FP (A29L160HTV-70) U3 (ES4 model) 814447...

  • Page 11: Kep-192 - 194 (1) Assembly Parts List

    P.W.B KEP-192 – 194 (1) Assembly Parts List Code No. Parts Name Q'ty Parts Number Parts Address Model KEP-192 (AMP) 800676 M5218AP U2,4 812222 LA6517 811018 PST600C 812950 TA8221AH 807032 PQ05RD11 812125 Transistor 2SC3792 Q4,5 812527 Transistor 2SC5395 Q2,6,7,8,9,10,11,12,13,14,16,17 810851 Transistor DTC143ES Q1,15...

  • Page 12: Kep-099 (4) Assembly Parts List

    Code No. Parts Name Q'ty Parts Number Parts Address Model KEP-194 (POWER SW) 815073 Diode SF5S4-7100 814982 DC Jack LGP7031-1200C 803428 Connector B3P-VH CN12 813212 Push Switch SDKLA-AP 813940 Screw Terminal TP00799-23 P.W.B KEP-099 (4) Assembly Parts List Code No. Parts Name Q'ty Parts Number...

  • Page 13: Cable Wiring Specification (1)

    I Cable Wiring Specification (1) – 13 –...
  • Page 14 I Cable Wiring Specification (1) – 14 –...

  • Page 15: Block Diagram

    I Block Diagram – 15 –...

  • Page 16: Kep-126 Assembly [Top]

    I P.W.B. KEP-126 Assembly [TOP] 104C 102C 102C 102C 104C B601 102R 103R 104C 102C 102C 102R 103R 103R B601 102C 102R 105R B601 102R 104C 2933 103C 222R 102R 104C 103R 222R 104C B601 B601 100uF 102R 102R 6.3V 102R 103R 104C...

  • Page 17: Kep-126 Assembly [Back]

    I P.W.B. KEP-126 Assembly [BACK] １０４Ｃ 105C Ｂ６０１ １０３Ｒ １０４ＣＢ６０１ １０４Ｃ ３３２Ｒ １０３Ｒ １０４Ｃ １０４Ｃ １０２Ｃ １０２Ｒ １０３Ｒ １０２Ｒ １０３Ｒ １０４Ｃ 100μF/6.3V １０４Ｃ Ｂ６０１ １０４Ｃ Ｂ６０１ ＵＴ６２Ｌ２５６８ＬＳ−７０ＬＬ 105C １０４Ｃ １０１Ｒ １０１Ｒ １０１Ｒ 0R0R １０４Ｃ １０１Ｒ Ｂ６０１ 0R0R Ｂ６０１ １０２Ｃ ３３２Ｒ 0R0R ３３２Ｒ...

  • Page 18: Kep-126 Circuit 1/4

    I P.W.B. KEP-126 Circuit 1/4 C113 102C/50V C117 104C/25V C114 102C/50V C118 104C/25V C115 102C/50V C119 104C/25V C116 102C/50V C120 104C/25V 1011 121314 151617 181920 212223 242526 272829 303132 333435 36373839 404142 434445 464748 4950 C121 102C/50V C122 104C/25V C123 102C/50V C124 104C/25V...

  • Page 19: Kep-126 Circuit 2/4

    I P.W.B. KEP-126 Circuit 2/4 (1-2J) 3.3V 3.3V 3.3V CPU_BUS EM41 3.3V B601 EM42 EM43 3.3V 3.3V B601 B601 104C/25V 104C/25V 104C/25V BYTE BYTE MA16 MA16 MA15 MD15 MA15 MD15 D15/A-1 D15/A-1 MA14 MD07 MA14 MD07 MA13 MD14 MA13 MD14 3.3V MA12 MD06...

  • Page 20: Kep-126 Circuit 3/4

    I P.W.B. KEP-126 Circuit 3/4 332C/50V 332C/50V 3.3V U13(1/3) U18(1/3) AK4393 NJM4580E NJM4580E 24BIT-DAC 102R 102R 102R 102R 332R 332R 332R 332R OFSET-L (3-10E) OFSET-R (3-15E) MAIN-DAC (3-12I) (3-12J) 102C/50V 102C/50V DVSS CKS2 DVDD CKS1 MCLK CKS0 102R 102R U14(1/3) U14(2/3) 225C/16V NJM4580E...

  • Page 21: Kep-126 Circuit 4/4

    I P.W.B. KEP-126 Circuit 4/4 (2-2E) KBD_BUS U25(1/7) 104C/25V 74HCT7007 U23(1/7) 74HCT7007 (1-7E) PNLCK EM16 BK1608HS601-T 3.3V EM33 B601 U25(2/7) U23(7/7) EM17 BK1608HS601-T 74HCT7007 74HCT7007 U23(2/7) 74HCT7007 R131 102R CN12 (1-4H) PNLG R132 102R U25(3/7) C112 R133 102R 74HCT7007 R159 104C U23(3/7) R142...

  • Page 22: Kep-196 - 198 Assembly

    I P.W.B. KEP-196 – 198 Assembly SW10 Demo Piano Split E.Piano Redistration Organ Harpsi/Mallets Bass Strings Choir/Pad es1P Demo Piano1 Relax Piano2 Concert Magic E.Piano Organ Choir/Bass Harpsi Strings SW11 SW12 SW13 SW14 SW15 SW16 SW17 SW18 SW19 Transpose Touch Play/Stop Rec Rhythm/Metronome Effects Reverb...

  • Page 23: Kep-196 - 198 Circuit

    I P.W.B. KEP-196 – 198 Circuit KEP-197 S8B-PH-K-S PTOP MTOP KEP-126 CN17 ORGAN HD74HC166P E.PIANO 10UF/16V SERIAL INPUT 473C/16V SHIFT/LOAD PIANO CHOIR PARALLEL INPUT H OUTPUT QH SW10 LED9 DEMO 3105VRT CLOCK INHIBIT STRING CLOCK SW1 D1 0R0R CLEAR SPLIT HARPSI LED7 3105VRT...

  • Page 24: Kep-192 - 194 Assembly 1/2

    I P.W.B. KEP-192 – 194 Assembly 1/2 – 24 –...

  • Page 25: Kep-192 - 194 Assembly 2/2

    I P.W.B. KEP-192 – 194 Assembly 2/2 – 25 –...

  • Page 26: Kep-192 - 194 Circuit 1/2

    I P.W.B. KEP-192 – 194 Circuit 1/2 KEP-192 U2(3/3) TA8221AH B9B-PH-K-S M5218AP 333R 1UF/50V 472R 333R 220C/50V 223R 102C/50V 104C/50V 104C/50V A+13V 4.7UF/50V REF1 SIG1R U4(1/3) REF1 M5218AP SIG1L U2(1/3) M5218AP SPMUTE 472R U4(3/3) MUTE M5218AP HPIN 333R 1UF/50V 333R 220C/50V KEP-126 1UF/50V...

  • Page 27: Kep-192 - 194 Circuit 2/2

    I P.W.B. KEP-192 – 194 Circuit 2/2 KEP-193 KEP-194 YKB21-5006 SBT-0160W 680R/0.5W 102C/50V CN10 102C/50V B4B-PH-K-S SBT-0160W YKB21-5006 680R/0.5W CN13 B3P-VH SBT-0160W HPSW 680R/0.5W TO Switch KEP-192 102C/50V 102C/50V SBT-0160W 680R/0.5W SSSF122-S06N0 SDKLA1-AP1 SPSW TO KEP-192 CN8 SF5S4 +15V YKB21-5074 SBT-0160W LPG7031-1200 102C/50V...

  • Page 28: Kep-099 Assembly

    I P.W.B. KEP-099 Assembly X : Not Mounted – 28 –...

  • Page 29: Kep-099 Circuit

    I P.W.B. KEP-099 Circuit – 29 –...

  • Page 30: Kkb-015 Circuit

    I P.W.B. KKB-015 Circuit ....c t i c t i – 30 –...

  • Page 31: Key Switch Matrix

    I Key Switch Matrix – 31 –...

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