Casio CDP-120 Service Manual & Parts List Download Page 7

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CDP-120

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NOMENCLATURE OF KEYS

F#3G#3A#3 C#4D#4 F#4G#4A#4 C#5D#5 F#5G#5A#5

F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6

D#3

C2 D2 E2 F2 G2 A2 B2 C3 D3 E3

C#3

A#2

G#2

F#2

D#2

C#2

C1 D1 E1 F1 G1 A1 B1

A0 B0

A#1

A#0

G#1

F#1

D#1

C#1

A#6

G#6

F#6

D#6

C#6

A#7

G#7

F#7

D#7

C#7

BUTTON MATRIX

SWO0

SWO1

SWI3

STRINGS

GRAND PIANO 2

SWI4

GRAND PIANO 1

HARPSICHORD

SWI5

DEMO, FUNCTION

ELEC PIANO

Summary of Contents for CDP-120

Page 1: ...CDP 120 Ver 1 Dec 2012 CDP 120 JUL 2011 ELECTRONIC KEYBOARD...

Page 2: ...CONTENTS SPECIFICATIONS 1 BLOCK AND WIRING DIAGRAM 2 PCB INFORMATION 3 CIRCUIT DESCRIPTION 4 PRINTED CIRCUIT BOARDS 6 DISASSEMBLY 9 DIAGNOSTIC PROGRAM 25 EXPLODED VIEW 28 PARTS LIST 30 SCHEMATIC DIAG...

Page 3: ...ial Default 440 0 Hz MIDI 16 multi timbre received GM Level 1 standard Inputs Outputs USB port TYPE B Damper Pedal jack Standard jack Phones Output jack Stereo standard jack Output Impedance 3 Output...

Page 4: ...2 2 pin CN1 2 pin CN20 5 pin CN4 5 pin USB PHONES J2 PEDAL J5 SPEAKER L SPEAKER R MAIN VOL VR1 CN19 4 pin CN801 16 pin FI0 FI10 SI0 SI10 KC0 KC7 LOUT ROUT KI0 KI2 KC0 KC1 PEDAL APO POFF MUTE MIC IN MP...

Page 5: ...IN M914 MDA1 MPU Flash Memory 64 Mbit Power Supply Circuit Filter USB Port Power Amp PCB PCB UNIT PSA1 M914 PSA1 Power Supply Circuit Power Amplifier Headphones Amplifier Power Switch Main Volume DC 1...

Page 6: ...A3 2 B32 C42 FI5 C4 1 D41 D4 1 E41 F41 F4 1 G41 G4 1 SI5 C4 2 D42 D4 2 E42 F42 F4 2 G42 G4 2 FI6 A41 A4 1 B41 C51 C5 1 D51 D5 1 E51 SI6 A42 A4 2 B42 C52 C5 2 D52 D5 2 E52 FI7 F51 F5 1 G51 G5 1 A51 A5...

Page 7: ...F5 G5 A5 B5 C6 D 3 C2 D2 E2 F2 G2 A2 B2 C3 D3 E3 B6 A6 G6 F6 E6 D6 C7 C 3 A 2 G 2 F 2 D 2 C 2 C1 D1 E1 F1 G1 A1 B1 A0 B0 A 1 A 0 G 1 F 1 D 1 C 1 A 6 G 6 F 6 D 6 C 6 B7 A7 G7 F7 E7 D7 C8 A 7 G 7 F 7 D...

Page 8: ...CDP 120 6 PRINTED CIRCUIT BOARDS Main PCB M914 MDA1 Power Amp PCB M914 PSA1...

Page 9: ...CDP 120 7 Keyboard PCB M914 KYA1 Keyboard PCB M914 KYB1...

Page 10: ...CDP 120 8 Keyboard PCB M914 KYC1...

Page 11: ...blanket before starting disassembling z z There are several kinds of screws Be sure to use the correct type of screws when reassembling It is advisable to sort the screws as shown below after removin...

Page 12: ...ght or four screws and then remove eight or four LOWER COVERs NOTE To remove only the main panel unit undo four screws and remove the four LOWER COVERs indicated with red circles in the illustration b...

Page 13: ...ain panel unit is connected to the lower case unit with the connectors and FFC Use caution when turn over the main panel unit A 6 Release the connector lock and remove the FFC A 7 Remove two connector...

Page 14: ...DP 120 12 A 8 Undo three screws on the RIGHT SIDE CASE and then remove the RIGHT SIDE CASE RIGHT SIDE CASE A 9 Undo three screws on the LEFT SIDE CASE and then remove the LEFT SIDE CASE LEFT SIDE CASE...

Page 15: ...ws on the RIGHT SIDE INNER CASE and then remove the right panel unit RIGHT SIDE INNER CASE Right panel unit A 11 Undo two screws on the LEFT SIDE INNER CASE and then remove the left panel unit LEFT SI...

Page 16: ...MDA1 PCB M914 MDA1 PCB Connectors M914 PSA1 C REMOVE THE M914 PSA1 PCB POWER AMP PCB C 1 Remove the ROTARY KNOB ROTARY KNOB C 2 Remove two connectors from the M914 MDA1 PCB M914 MDA1 PCB M914 PSA1 PC...

Page 17: ...EAKER Left speaker Right speaker Lead wire Black Lead wire Red Lead wire Red Lead wire Black E REMOVE THE KY ASSY E 1 Undo three screws and then remove the LEFT SIDE INNER CASE LEFT SIDE INNER CASE E...

Page 18: ...CDP 120 16 E 4 Undo three screws and then remove the KY ASSY KY ASSY LOWER CASE UNIT...

Page 19: ...cedures as removing black keys Tool The tool used in the photos in this section was converted from a gardening ID tag The size and shape of an ID tag accord to the dimensions below Note on shaping an...

Page 20: ...the two tools between the rib of the chassis and a key A 2 When the tools are inserted to a certain depth the key begins to be lifted and can then be removed Cross section image Tools Chassis Tool Ke...

Page 21: ...at the foot of each key C E G B D F A C E G B D F A C E G B D F A C E G B SA D B F A C E G B D F A C E G B D F A C E G B D F A SC Install a black key before installing the white keys on either of its...

Page 22: ...gainst the resin part of the chassis B 4 Using the chassis tweezer contact as a fulcrum point press down against the resin part in the direction of the red arrow in the illustration below and then dis...

Page 23: ...of Hammer W for a white key B for a black key Hammer Code The hammers for white keys are coded W1 W2 W3 and W4 The hammers for black keys are coded B1 B2 B3 and W4 Location to install the hammer A ha...

Page 24: ...white keys 1 Use the tweezers to set a hammer at its correct location 2 Press the chassis with the tip of tweezers 3 Using the chassis tweezers contact as a fulcrum point press down the metal part of...

Page 25: ...FC C 2 Remove 23 screws and then remove the M914 KYA1 KYB1 KYC1 PCBs FFC M914 KYA1 PCB M914 KYB1 PCB M914 KYC1 PCB C 3 Remove eight rubber contact strips NOTE One rubber contact strip is shorter than...

Page 26: ...lightly in the direction of the red arrow in the illustration below while tightening a screw 3 Install eight rubber contact strips NOTE Be sure to install the short rubber contact strip at the correc...

Page 27: ...ition Windows XP Professional 32 bit 2 Windows Vista 32 bit 3 Windows 7 32 bit 64 bit HOW TO START THE DIAGNOSTIC PROGRAM 1 Hold down the FUNCTION GRAND PIANO 2 and HARPSICHORD buttons at the same tim...

Page 28: ...at the end press the STRINGS button again to return to the root mode B ROM VERSION CHECK B 1 Press the HARPSICHORD button to perform the ROM VERSION CHECK B 2 Press the A0 key If the result passes The...

Page 29: ...s the STRINGS button to return to the root mode E USB CHECK NOTE The following procedures are for a PC with Windows XP E 1 Connect the main unit to the PC with a USB cable E 2 Open the windows Device...

Page 30: ...CDP 120 28 EXPLODED VIEW KEYBOARD UNIT 35 34 39 40 1 2 32 33 29 28 32 51 55 54 54 47 47 53 46 52 56 56 48 49 49 49 48 50 55 37 28 30 44 45 41 43 36 38 42 40 44 45 41 36 30 31 31...

Page 31: ...CDP 120 29 KEYBOARD UNIT 4 11 8 18 19 14 15 20 12 17 7 13 9 10 21 22 23 3 26 27 24 25 25 22 24 23 16 5 6...

Page 32: ...atest Parts Price Code at PARTS FINDER on the Casio Service WEB site https www servicecasio com 3 As for spare parts order and supply refer to the GUIDEBOOK for Spare parts Supply published separately...

Page 33: ...1 1 1 1 X Q4 69409403 TRANSISTOR 2SA1576AT106R 1 1 1 1 X Q1 Q3 69300298 TRANSISTOR 2SC4081T106R 3 3 3 3 X KEYBOARD PCB 3 10399792 PCB UNIT KY and RUBBER CONTACT TK RJM511215 001 1 1 1 1 C KYA1 KYB1 K...

Page 34: ...1V01 1 1 1 1 X N 39 10398237 CASE SUB UNIT PANEL RIGHT RJM511006 001V01 1 1 1 1 X 40 10130104 FABRIC TAPE 10X180 M440259 002V01 2 2 2 2 X 41 10284878 SPEAKER C0612J01 2 2 2 2 X N 42 10164046 HARNESS E...

Page 35: ...CDP 120 33 SCHEMATIC DIAGRAMS Main PCB M914 MDA1 USB to KYB1 CN803 to PSA1 CN3 to PSA1 CN4 Not used...

Page 36: ...CDP 120 34 Power Amp PCB M914 PSA1 MAIN VOL VR1 POWER SWITCH SW1 LEFT SPEAKER RIGHT SPEAKER to MDA1 CN20 to MDA1 CN11 PHONES J2 to RIGHT SPEAKER DC 12 V IN J3 PEDAL J5 to LEFT SPEAKER...

Page 37: ...CDP 120 35 Keyboard PCB M914 KYA1 to KYB1 CN802...

Page 38: ...CDP 120 36 Keyboard PCB M914 KYB1 to KYA1 CN801 to MDA1 CN14 to KYC1 CN805...

Page 39: ...CDP 120 37 Keyboard PCB M914 KYC1 to KYB1 CN804...

Page 40: ...CASIO COMPUTER CO LTD Overseas Service Division 6 2 Hon machi 1 Chome Shibuya ku Tokyo 151 8543 Japan Ver 1 Dec 2012 Correction of the EXPLODED VIEW P28 Correction of the PARTS LIST P32...

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