Kawai ES4/es1P User manual

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

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■Contents
Specifications................................................................... 3
Hardware List ................................................................... 4
Opening Procedure ......................................................... 5
Case Assembly ................................................................ 6
Keyboard Unit (RG88 Type) ............................................. 7
Keyboard Disassembling Procedure ............................... 8
Electrical Parts List .......................................................... 9
P.W.B. KEP-126 (23), (24) Assembly Parts List ............ 10
P.W.B KEP-196 – 198 (1) Assembly Parts List ............ 10
P.W.B KEP-192 – 194 (1) Assembly Parts List ............ 11
P.W.B KEP-099 (4) Assembly Parts List ....................... 12
Cable Wiring Specification (1) ....................................... 13
Block Diagram ................................................................ 15
P.W.B. KEP-126 Assembly [TOP] .................................. 16
P.W.B. KEP-126 Assembly [BACK] ................................ 17
P.W.B. KEP-126 Circuit 1/4 ............................................ 18
P.W.B. KEP-126 Circuit 2/4 ............................................ 19
P.W.B. KEP-126 Circuit 3/4 ............................................ 20
P.W.B. KEP-126 Circuit 4/4 ............................................ 21
P.W.B. KEP-196 – 198 Assembly .................................. 22
P.W.B. KEP-196 – 198 Circuit ........................................ 23
P.W.B. KEP-192 – 194 Assembly 1/2 ............................ 24
P.W.B. KEP-192 – 194 Assembly 2/2 ............................ 25
P.W.B. KEP-192 – 194 Circuit 1/2 .................................. 26
P.W.B. KEP-192 – 194 Circuit 2/2 .................................. 27
P.W.B. KEP-099 Assembly ............................................. 28
P.W.B. KEP-099 Circuit .................................................. 29
P.W.B. KKB-015 Circuit .................................................. 30
Key Switch Matrix .......................................................... 31

– 3 –
■Specifications
* Specifications are subject to change without notice.
ES4 es1P
88 Keys with Advanced Hammer Action IV
Maximum 96
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)
Chorus, Delay (3), Tremolo, Rotary (2) —
Room 1, Room 2, Stage, Hall 1, Hall 2
Equal (Piano Only), Mersenne pure (Major),
Mersenne pure (minor), Pythagorean,
Meantone, Werckmeister III, Kirnberger III,
Equal (flat), Equal
Master Volume, Dual, Split, Master Volume, Dual,
Dual/Split Balance, Transpose, Tune, Transpose, Tune, Damper Effect,
Damper Effect, String Resonance, Brilliance, String Resonance, Brilliance, EQ (3)
EQ (3), Touch Curve (Normal, Light (2), Touch Curve (Normal, Light (2),
Heavy (2), Off), Heavy (2), Off)
MIDI (16 part multi-timbral capability) MIDI (16 part multi-timbral capability)
2 Tracks, 4 Songs 2 Tracks, 4 Songs
The total memory capacity is approximately The total memory capacity is approximately
10,000 notes. 15,000 notes.
Damper (Sustain, Soft with optional foot pedal)
* F-1r: Normally closed switch
Headphone (2), LINE IN (Stereo), LINE OUT (L/MONO, R), PEDAL, MIDI (IN, OUT), USB
13W x 2
35W 30W
PS-153 15V 4A (+) Center
5 cm x 6
2” x 6
136.2 x 32.1 x 13.8 cm
54” x 13” x 5”
20.7 kg, 46 LB’s
Model
Keyboard
Polyphony
Preset Tones
Effects
Reverb
Temperaments
Other Features
Recorder
Pedal
Jacks
Output Power
Power Consumption
Adapter
Speakers
Dimensions
(W x D x H)
Weight

– 4 –
+Binding Head
P-Tite Tapping #1B-Tite S-Tite
+Truss Head +Pan Head
Machine Machine W/WahersTapping #1
■Hardware List
No. PARTS NAME Q'TY CODE No. SIZE
ES4 es1P
1 +Bind/B-Tite 3 797980 3 x 12
2 +Bind/B-Tite 4 798484 3 x 16
3 +Bind/B-Tite 37 798325 3 x 8
4 +Bind/P-Tite 12 797983 3 x 16
5 +Bind/P-Tite/Black Chromating 2 798425 3 x 10
6 +Bind/S-Tite 18 798030 3 x 8
7 +Bind/S-Tite/Black Chromating 5 812650 3 x 10
8 +Bind/Tapping #1 12 798176 3 x 35
9 +Bind/Tapping #1/Black Chromating 24 798074 3 x 12
10 +Pan/Machine Screw, w/Washers 5 812256 M5 x 20
11 +Pan/Machine Screw, w/Washers 4 797813 M5 x 25
12 +Truss/Machine Screw/Black Chromating 4 798373 M4 x 16
13 +Truss/Machine Screw/Black Chromating 5 798529 M5 x 25
14 +Truss/Tapping #1 16 797022 4 x 12
15 +Truss/Tapping #1 4 798357 4 x 14
16 +Truss/Tapping #1/Black Chromating 2 797284 4 x 8
17 Plain Washer/Black 5 797502 M3
18 +Bind/B-Tite/Black Chromating —4 797990 3 x 8
19 +Bind/P-Tite/Nickel —2 798749 2.6 x 5

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

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■Case Assembly NO. PARTS NAME Q'TY CODE NO.
ES4B es1PB es1PW
1 ARM L 1 815027 815027 815031
2 JACK PANEL L 1 814998 814998
3 GROUND TERMINAL 1 810784 810784
4 SUPPORT FITTING L 1 815000 815000
5 CHEEK BLOCK L 1 815033 815033 815037
6 WOOD BLOCK 1 815040 815040
7 INSERT NUT 2 815026 815026
8 ARM R 1 815028 815028 815032
9 JACK PANEL R 1 814999 814999
10 GROUND TERMINAL 1 810784 810784
11 SUPPORT FITTING R 1 815001 815001
12 CHEEK BLOCK R 1 815034 815034 815038
13 WOOD BLOCK 1 815040 815040
14 INSERT NUT 2 815026 815026
15 POWER SW KEY TOP 1 808909 808909
16 KEY BED 1 815039 815039
17 INSERT NUT 4 798510 798510
18 LEG 4 814941 814941
19 KEY SLIP 1 815002 815002 815004
20 CUSHION SPACER 2 813369 813369
21 KEY SLIP CUSHION 1 815019 815019
22 PANEL 1 814993 814993 814995
23 KEY TOP 19 815021 815021 815020
24 SLIDE VOL.KNOB 1 815024 815024 813806
25 LED COVER 1 813809 813809
26
SLIDE VOLUME COVER CLOTH 1 811034 811034
27 KEY STOP RAIL FELT 1 812440 812440 813246
28
MUSIC RACK STOPPER 2 810030 810030
29
MUSIC RACK STOPPER FITTING 2 815005 815005
30
BACK PANEL GENERAL ASSY. 1 815006 815006 815007
31 SPEAKER NET 1 815008 815008 815010
32 SPACER 5 815041 815041
33 BAFFLE BOARD L 1 815042 815042
34 BAFFLE BOARD R 1 815043 815043
35
BAFFLE BOARD CUSHION A 4 815016 815016
36
BAFFLE BOARD CUSHION B 4 815017 815017
37 SPEAKER BOX 2 815025 815025
38
SPEAKER BOX CUSHION 6 815018 815018
39 SPEAKER RING L 6 815023 815023
40 SPEAKER RING R 6 815085 815085
41
SPEAKER CABLE CUSHION 2 815022 815022
42 HEATSINK 1 812953 812953
43 HEATSINK FITTING L 1 815011 815011
44 HEATSINK FITTING R 1 815012 815012
45 PWB SPACER 1 815056 815056
46 SUPPORT FITTING L 1 815000 815000
47 SUPPORT FITTING R 1 815001 815001
48 MUSIC RACK 1 815080 —
49 MUSIC RACK 1 —815079
50 MUSIC RACK UNDER 1 —946190
51 MUSIC RACK FITTING 2 —946185
52 SPEAKER (KS05-010) 6 814992 814992
47
16
18
17
19
20
18
21
17
20
4
6
7
2
3
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1
5
46
43
42
45
44
38
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12
15
14
9
11
13
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30
40
39
32
32
32
39
40
32
29
28 27
22
23
25
23
29
28
26
24
48
49
51
50
51
35
34
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52
33
52
52
35
36
36
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41
41
35
35
36
36
No.16
Screw
(4x8)
No.15
Screw
(4x14)
No.10
Screw
(M5x20)
No.3
Screw
(3x8)
No.8
Screw
(3x35)
No.8
Screw
(3x35)
No.3
Screw
(3x8)
No.6
Screw
(M3x8)
No.14
Screw
(4x12)
No.14
Screw
(4x12)
No.14
Screw
(4x12)
No.14
Screw
(4x12)
No.7
Screw
(3x10)
No.9
Screw
(3x12)
No.2
Screw
(3x16)
No.4
Screw
(3x16)
No.4
Screw
(3x16) No.4
Screw
(3x16)
No.16
Screw
(4x8)
No.13
Screw
(M5x25)
No.15
Screw
(4x14)
No.14
Screw
(4x12)
No.6
Screw
(M3x8)
No.14
Screw
(4x12)
No.3
Screw
(3x8)
No.8
Screw
(3x35)
No.5
Screw
(3x10)
No.7
Screw
(3x10)
No.2
Screw
(3x16)
No.14
Screw
(4x12)
No.8
Screw
(3x35)
No.18
Screw
(3x8)
No.18
Screw
(3x8)
No.19
Screw
(2.6x5)
No.6
Screw
(3x8)
No.3
Screw
(3x8)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
No.3
Screw
(3x8)
No.6
Screw
(3x8)
No.4
Screw
(3x16)
No.9
Screw
(3x12)
No.4
Screw
(3x16)
Washer
(M3)
Washer
(M3)
Washer
(M3)
Washer
(M3)
Washer
(M3)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
No.6
Screw
(3x8)
KEP-099
KEP-193
KEP-126
KEP-192
KEP-196
KEP-197
KEP-198
KEP-194
* Screw No.: Refer to Screw List

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1
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■Keyboard Unit (RG88 Type)
<Keyboard Parts List>
No. Code No. Parts Name Description Q’ty
814849 Complete Keyboard Unit 1
1 814651 White Key (C) 7
814652 White Key (D) 7
814653 White Key (E) 7
814654 White Key (F) 7
814655 White Key (G) 7
814656 White Key (A) 7
814657 White Key (B) 8
814658 White Key (AA) lowest A key 1
814659 White Key (CC) highest C key 1
2 814660 Black Key 36
3 814661 Chassis (A-G#) 7
814662 Chassis (A-C) 1
4 947901A Rib Assy 8
5 814650 Guide Spacer 16
6 947902 Front Rail 1
7 947903 Stopper Rail 1
8 947904 Switch Rail 1
9 947905 Back Rail 1
No. Code No. Parts Name Description Q’ty
10 947907A Hammer Assy (White Key Low) Key No. 1- 15 9
947908A Hammer Assy (White Key Mid-Low) Key No. 16- 32 10
947909A Hammer Assy (White Key Mid-High) Key No. 33- 63 18
947910A Hammer Assy (White Key High) Key No. 64- 88 15
947911A Hammer Assy (Black Key Low) Key No. 1- 15 6
947912A Hammer Assy (Black Key Mid-Low) Key No. 16- 32 7
947913A Hammer Assy (Black Key Mid-High) Key No. 33- 63 13
947914A Hammer Assy (Black Key High) Key No. 64- 88 10
11 814664 Slip Tape 88
12 814665 Guide Tape 88
13 813171 Key Stopper Cushion 1
14 814666 Stopper Felt 2
15 814667 Hammer Upper-Limit Cushion 1
16 814668 Hammer Lower-Limit Cushion 1
17 237347 PWB, KKB-015 Assy 1
800760 IC (Decoder) 74HC138P 3
807339 Diode 1S2076A 176
18 813175 Rubber Contact F-E (12-cup) 8

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–8 –
22
1
1
1
open
Snap Ring pliers
grasp
WHITE KEY
Fulcrum point
2BLACK KEY
Stopper Fulcrum point
Stopper Fulcrum point
■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>
1.Spread the key at fulcrum point and lift it up. (We recommend to use Snap Ring pliers.
If not available, use a flat blade (tapered) screwdriver.)
2.Pull the key off. (Pay attention to the stopper.)
* To remove a black key, the white keys on either side must be removed first.
<How to take a hammer off>
1.Lift the hammer at the fulcrum point.
2.Pull the hammer off.

– 9 –
Code No. Parts Name Q'ty Parts Number Remarks Model
237806 P.W.B. Assy 1 KEP-126 (23) CPU ES4
237807 P.W.B. Assy 1 KEP-126 (24) CPU es1P
237808 P.W.B. Assy 1 KEP-196 – 198 (1) PANEL
237809 P.W.B. Assy 1 KEP-192 – 194 (1) ANALOG
237810 P.W.B. Assy 1 KEP-099 (4) USB/MIDI
237347 P.W.B. Assy 1 KKB-015 (1) KEYBOARD
805062 PH Standard Color Cable 1 PH-04-0950-YEL AMP-JACK
947667 PH Standard Color Cable 1 PH-09-0150-WHT CPU-AMP
815061 PH Standard Color Cable 1 PH-06-0200-BLU AMP-PANEL
942695 PH Standard Color Cable 1 PH-08-0250-GRY CPU-PANEL
815060 PH Standard Color Cable 1 PH-05-0550-GRN CPU-JACK
815068 CPU POWER Cable 1 AMP-CPU
815063 POWER Cable 1 INLET-AMP
815065 SP Cable R 1 AMP-SP
815066 SP Cable L 1 AMP-SP
815064 LINE OUT Cable 1 AMP-JACK
815059 KEYBOARD Cable 1 CPU-KEYBOARD
815067 USB Cable 1 CPU-USB/MIDI
810784 EARTH Cable 1 1007#18 65 T-T INLET-EARTH
814987 AC adaptor 1 PS-153 15VDC 4A (+) CENTER
809168 AC Cable 1 DC-354-J12 es1P
815340 AC Cable 1 US SZC7S ME301P ES4 (US,GE120)
809170 AC Cable 1 EC-511-E07 ES4 (CD,GE230)
809171 AC Cable 1 SC-078-J02 ES4 (AU)
813178 AC Cable 1 2P FOR BS 2.5M BA ES4 (CG)
■Parts List
Electrical Parts List

– 10 –
KEP-196 (VOLUME)
813787 SLIDE VOLUME 1 RS30112 VR1
804578 Connector 1 S6B-PH-K-S CN2
KEP-197 (PANEL)
812220 IC(HCMOS) 1 74HC166P U1
808457 IC(HCMOS) 3 74HC595P U2,3,4
805851 Transistor 7 DTC143TS Q1,2,3,4,5,6,7
810922 LED DISPLAY 1 LB-203ML LED1,
813111 LED 10 3105VRT LED2,3,4,5,6,7,8,9,10,11
800625 DIODE 10 1SS133T-77 D1,2,3,4,5,6,7,8,9,10
808345 SWITCH 10 KSH0612AT SW1,2,3,4,5,6,7,8,9,10
804580 CONNECTOR 1 S8B-PH-K-S CN1
809434 Cable Holder 1 51048-0900 CN4
KEP-198 (PANEL)
813111 LED 7 3105VRT LED14,15,16,17,18,19,20
800625 DIODE 9 1SS133T-77 D11,12,13,14,15,16,17,18,19
808345 SWITCH 9 KSH0612AT SW11,12,13,14,15,16,17,18,19
809434 Cable Holder 1 51048-0900 CN3
945265 Panel Joint Cable 1
Code No. Parts Name Q'ty Parts Number Parts Address
812979 CPU 1 KP430-F7FP (MB91F109PF-G) U2
814414 TG 1 K022-FP MB87L8040 U6
814435 RESET IC 1 BD5245 FVE-TR U29
810368 REGULATOR 1 NJM78L05UA-TE1 U17
812219 OP-AMP 6 NJM4580E-T1 U13,14,18,22
813047 REGULATOR 1 µPC2933AT-E1 U27
814447 FLASH ROM 1 KP461-F9FP (A29L160HTV-70) U3 (ES4 model)
814447 FLASH ROM 1 KP462-F9FP (A29L160HTV-70) U3 (es1P model)
814418 DRAM 1 IC41LV16257-35T-EL U4
814416 SRAM 1 UT62L2568LS-70LL UT62L2568LS-70LLI U9
814981 ROM 1 KP459-MDFW MR27V12800J U8
814074 DAC 2 AK4393VF-E2 U15
812217 LOGIC 2 TC74HCT7007AF-TP1 U23,25
804056 LOGIC 1 HD74HC245FPEL U24
812958 X'tal Oscillator 1 DSO751SV 33.8688MHz X2
812722 X'tal Oscillator 1 SMD-49 12.5MHz CX-49G 12.5MHz X1
813358 Chip Bead 27 BLM18AG601SN1D EM1,2,5,8,9,10,13,14,15,16,17,19,20,
22,33,34,40,41,42,44,45,46,47,49,51
R16,93
P.W.B. KEP-126 (23), (24) Assembly Parts List
Code No. Parts Name Q'ty Parts Number Parts Address
P.W.B KEP-196 – 198 (1) Assembly Parts List