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- Kawai
- Musical Instrument
- MP4
- Service Manual
Kawai MP4 Service Manual
Summary of MP4
Page 1
Kawai musical instruments manufacturing co., ltd. Manufacturing date april 2005 mp4 service manual se981e-s0504.
Page 2: ■ Contents
– 2 – ■ contents specifications ................................................................... 3 hardware list ................................................................... 4 case assembly ................................................................ 5 panel assembly .....................
Page 3: ■ Specifications
– 3 – ■ specifications * specifications are subject to change without notice. 88 keys with advanced hammer action iv 96 voices 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),...
Page 4: ■ Hardware List
– 4 – +binding head toothed lock washer p-tite s-tite machine +truss head +oval countersunk head +pan head machine machine tapping #2 tapping #1 ■ hardware list no. Type size remarks 1 +binding head machine screw m2.6 x 4 2 +binding head/s-tite 3 x 6, 8/4 x 8 3 +binding head/s-tite 3 x 10 black chro...
Page 5: ■ Case Assembly
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 5 – kep-186 kep-182 kep-187 kep-188 kep-099 kep-181 kep-180 kep-126 kep-189 kt-026 lcd kep-179 1 3 2 kep-185 4 26 9 10 11 12 2 25 15 14 12 13 23 22 20 19 20 21 21 17 16 7 8 8 5 6 18 24 24 screws (4x12) screws (4x...
Page 6: ■ Panel Assembly
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 6 – ■ panel assembly 13 1 12 7 3 8 2 6 4 5 4 6 5 2 2 9 10 14 11 15 1 814891 wheel knob 2 2 811555 key top 40 3 813702 lcd cover 1 4 939900 slide vr cover 5 5 812630 slide vr cover cloth 5 6 804969 slide vr knob 5...
Page 7
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 7 – 17 13 12 16 10 15 14 15 14 11 1 5 6 2 18 7 8 3 4 9 ■ keyboard unit (rg88 type) 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 w...
Page 8
A b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 8 – 2 2 1 1 1 open snap ring pliers grasp white key fulcrum point 2 black key stopper fulcrum point stopper fulcrum point ■ keyboard disassembling procedure first, remove the keyboard fixing screws (10 pcs.) at t...
Page 9: ■ Parts List
– 9 – code no. Parts name q'ty parts number remarks model 237769 p.W.B. Assy 1 kep-126 (22) cpu 237770 p.W.B. Assy 1 kep-179~185 (1) panel,hp 237773 p.W.B. Assy 1 kep-186~189 (2) analogs,a/d,jack,power 120v 237774 p.W.B. Assy 1 kep-186~189 (3) analogs,a/d,jack,power 230v 237772 p.W.B. Assy 1 kep-099...
Page 10
– 10 – code no. Parts name q'ty parts number parts address 812215 mpu 1 mb91101apf-g u2 814414 mg 1 k022-fp u6 810368 voltage regulator 1 njm78l05ua-te1 u17 813047 voltage regulator 1 µ pc2933at u27 812219 op amp 3 njm4580e-t1 u13,14,18 237690 flash rom 1 kp448a-f9fp u3 814848 dram 1 glt440l16-35tc ...
Page 11
– 11 – code no. Parts name q'ty parts number parts address p.W.B. Kep-179~185 (1) assembly parts list kep-179 (panel left) 813111 led 8 el3105vrt/tr1-11 (a) led1,2,3,4,5,6,11,12 814696 led 4 gl2hd6 led7,8,9,10 812662 led 4 gl2eg6 led13,14,15,16 813838 led 4 spr-325mvw led17,18,19,20 800625 diode 12 ...
Page 12
– 12 – code no. Parts name q'ty parts number parts address model kep-186 (a/d joint, analog) 803995 logic 2 tc74hc4051ap u2,4 808457 logic 1 hd74hc595p u3 808098 op-amp 1 njm3404ad u1 809426 op-amp 2 ba15532 u9,10 812222 op-amp 1 la6517 u8 808973 transistor 1 dta114esatp q7 812527 transistor 3 2sc53...
Page 13
– 13 – 811711 high voltage capacitor 2 de1e3kx472mb5ba01 c75,78 805992 electrolytic capacitor 1 esmg6r3ell102mhb5d c83 807041 electrolytic capacitor 1 esmg6r3ell332mj20s c81 707418 electrolytic capacitor 1 esmg160ell470me11d c84 809769 electrolytic capacitor 2 esmg250ell4r7me11d c69,71 808738 electr...
Page 14
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 14 – ■ cable wiring specification kep-126 cn-10 cn-3 cn-22 ferrite core vinyl binder binder filament tape inshlock tie cn-18 cn-19 cn-20 blue brown cn-8 cn-7 cn-6 cn-10 cn-4 cn-1 cn-2 cn-5 cn-9 cn-18 cn-13 cn-14 ...
Page 15: ■ Block Diagram
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 15 – ■ block diagram.
Page 16
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 16 – ■ p.W.B. Kep-126 (22) assembly [top] x : not mounted.
Page 17
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 17 – ■ p.W.B. Kep-126 (22) assembly [back] x : not mounted.
Page 18
– 18 – 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 b c d e f g h i j a b c d e f g h i j a ■ p.W.B. Kep-126 circuit 1/4.
Page 19
– 19 – 2 b a c d e f g h i j b a c d e f g h i j 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 ■ p.W.B. Kep-126 circuit 2/4.
Page 20
– 20 – 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 b a c d e f g h i b a c d e f g h i ■ p.W.B. Kep-126 circuit 3/4.
Page 21
– 21 – 2 1 b a c d e f g h b a c d e f g h 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ■ p.W.B. Kep-126 circuit 4/4.
Page 22
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 22 – ■ p.W.B. Kep-179 – 185 (1) assembly headphone kep-179 sw1 zone select 4 sw2 zone select 3 sw3 zone select 2 sw4 zone select 1 sw5 effect sw6 eq sw7 zone on/off 1 sw8 zone on/off 2 sw9 zone on/off 3 sw10 zone...
Page 23
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 23 – ■ p.W.B. Kep-179 – 185 circuit 1/2.
Page 24
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 24 – ■ p.W.B. Kep-179 – 185 circuit 2/2.
Page 25
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 25 – ■ p.W.B. Kep-186 – 189 (2) assembly line out r line out l/mono expression foot sw damper/soft x : not mounted.
Page 26
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 26 – ■ p.W.B. Kep-186 – 189 (3) assembly line out r line out l/mono expression foot sw damper/soft x : not mounted.
Page 27
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 27 – ■ p.W.B. Kep-186 – 189 circuit 1/3.
Page 28
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 28 – ■ p.W.B. Kep-186 – 189 circuit 2/3.
Page 29
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 29 – ■ p.W.B. Kep-186 – 189 circuit 3/3.
Page 30
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 30 – ■p.W.B. Kep-099 (3) assembly usb midi in midi out thru x : not mounted.
Page 31: ■ P.W.B. Kep-099 Circuit
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 31 – ■ p.W.B. Kep-099 circuit.
Page 32: ■ P.W.B. Kkb-015 Circuit
A b c d e f g h i j k a b c d e f g h i j k 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 – 32 – ■ p.W.B. Kkb-015 circuit 8 3 1 c h 4 7 15 14 13 12 11 10 9 7 1-4 key 5-8 key 9-12 key 13-16 key 13-16 key 17-20 key 21-24 key 29-32 key 6 16 5 4 3 2 1 8 v 5 2 / z 3 7 4 8 3 1 c h 4 7 15 14 13 12 11 10 9 7 33...
Page 33: ■ Key Switch Matrix
– 33 – ■ key switch matrix a b c d e f g h i j k a b c d e f g h i j k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 0 2 1 2 2 2 3 2 4 2 0 a 0 # a 0 b 1 c 1 # c 1 d 1 # d 1 e 1 f 1 # f 1 g 1 # g 1 a 1 # a 1 b 2 c 2 # c 2 d 2 # d 2 e 2 f 2 # f 2 g...