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Casio Privia PX-720, Service Manual & Parts Manual

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Casio Privia PX-720 Service Manual & Parts Manual Download Page 27

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2
3
4
5

PX-720_BLACK_DI_120V
PX-720_BLACK_DI_230V
PX-720_BLACK_EU
PX-720_BLACK_UK
PX-720_BLACK_US

6
7
8
9

10

PX-720_CHERRY_DI_120V
PX-720_CHERRY_DI_230V
PX-720_CHERRY_EU
PX-720_CHERRY_UK
PX-720_CHERRY_US

1

2

3

4

5

6

7

8

9

10

Price
Code

R

Remarks

N

Item

Parts No.

Parts Code

Specification

Q'TY

MAIN CASE UNIT

N

25

10286879 BOARD UNIT/TOP

TK-RJM508094*001

1

1

1

1

1

DJ

C

N

25

10286880 BOARD UNIT/TOP

TK-RJM508094*002

1

1

1

1

1

DI

C

26

10218670 SCREW/MUSIC/STAND

RJM506168-001V02

2

2

2

2

2

2

2

2

2

2

AC

C

N

27

10286872 COVER ASSY/KEY

TK-RJM508092*001

1

1

1

1

1

DQ

C

N

27

10286873 COVER ASSY/KEY

TK-RJM508092*002

1

1

1

1

1

DQ

C

28

10211850 GEAR

RJM505897-001V01

2

2

2

2

2

2

2

2

2

2

AA

C

29

10211851 SLIDE CAP

RJM505899-001V01

2

2

2

2

2

2

2

2

2

2

AA

C

30

10281460 BRACKET

RJM507981-001V01

2

2

2

2

2

2

2

2

2

2

AA

X

N

31

10286854 SIDE UNIT/LEFT

TK-RJM508098*001

1

1

1

1

1

CX

C

N

31

10286857 SIDE UNIT/LEFT

TK-RJM508098*002

1

1

1

1

1

CX

C

32

10052232 KNOB/RTR

M341402-1

1

1

1

1

1

AE

C

N

32

10281937 KNOB/RTR

M341402-002V01

1

1

1

1

1

AA

C

N

33

10281490 SIDE BLOCK/LEFT

RJM507971-001V01

1

1

1

1

1

AE

X

N

33

10281955 SIDE BLOCK/LEFT

RJM507971-002V01

1

1

1

1

1

AE

X

N

34

10281445 RUBBER KEY

RJM505783-002V02

1

1

1

1

1

1

1

1

1

1

AD

C

N

35

10286859 PCB ASSY/CNA1

TK-RJM508131*001

1

1

1

1

1

1

1

1

1

1

CJ

C

N

IC601,602

10279863 IC

TC74VHC164FT(EL.K)

2

2

2

2

2

2

2

2

2

2

AN

C

N

VR601

10273791 VARIABLE RESISTOR

F-09KGH-CASIO-1

1

1

1

1

1

1

1

1

1

1

AJ

C

D607,608,

609,610

23153132 DIODE

1SS133T-77

4

4

4

4

4

4

4

4

4

4

AA

X

D401-406

10171338 LED

LT2P71-81-M1-S06

6

6

6

6

6

6

6

6

6

6

AA

C

N

SW601-607

10228658 TACT SWITCH

THVV502GAA

7

7

7

7

7

7

7

7

7

7

AA

X

N

36

10286860 PCB ASSY/CNA2

TK-RJM508133*001

1

1

1

1

1

1

1

1

1

1

CD

C

N

36-1

10281486 BRACKET

RJM507979-001V01

1

1

1

1

1

1

1

1

1

1

AC

X

J601,602

10171449 CONNECTOR

JY-6360*04-070

2

2

2

2

2

2

2

2

2

2

AE

C Phone Jack

L601,602

10206672 COIL

R2318-RB53856396NP

2

2

2

2

2

2

2

2

2

2

AA

X

N

37

10286855 SIDE UNIT/RIGHT

TK-RJM508099*001

1

1

1

1

1

CN

C

N

37

10286858 SIDE UNIT/RIGHT

TK-RJM508099*002

1

1

1

1

1

CN

C

38

69245260 BUTTON/POWER

M340318-1

1

1

1

1

1

AA

C

38

10203292 BUTTON/POWER

M340318-002V01

1

1

1

1

1

AA

C

N

39

10281491 SIDE BLOCK/RIGHT

RJM507972-001V01

1

1

1

1

1

AE

X

N

39

10281956 SIDE BLOCK/RIGHT

RJM507972-002V01

1

1

1

1

1

AE

X

N

40

10229392 POWER SWITCH

SDDL1PCHL011

1

1

1

1

1

1

1

1

1

1

AS

C

N

41

10284864 HARNESS

EH-2P-115-M681A

1

1

1

1

1

1

1

1

1

1

AI

C

N

42

10281487 BRACKET

RJM507980-001V01

2

2

2

2

2

2

2

2

2

2

AA

X

N

43

10286882 CASE ASSY/MIDDLE

TK-RJM508097*001

1

1

1

1

1

DU

C

N

43

10286856 CASE ASSY/MIDDLE

TK-RJM508097*002

1

1

1

1

1

DU

C

43-1

10288159 BOARD ASSY/FRONT

TK-RJM508102*001

1

1

1

1

1

C

43-1

10288160 BOARD ASSY/FRONT

TK-RJM508102*002

1

1

1

1

1

C

44

10259521 DAMPER ASSY

TK-RJM507005*001

1

1

1

1

1

1

1

1

1

1

BB

C

45

10256108 STOPPER

RJM506780-001V01

2

2

2

2

2

AC

C

N

45

10281501 STOPPER

RJM506780-002V01

2

2

2

2

2

AE

C

N

46

10286862 PCB ASSY/CNA4

TK-RJM508137*001

1

1

1

1

1

1

1

1

1

1

BS

C

D611

10203050 LED

231XHD

1

1

1

1

1

1

1

1

1

1

AA

C

N

47

10269833 CUSHION

RJM507817-001V01

2

2

2

2

2

2

2

2

2

2

AA

C

N

48

10281584 BOX/PCB

RJM507974-001V01

1

1

1

1

1

1

1

1

1

1

BK

X

49

10268012 FERRITE CORE

K5ARH16X9X17

1

1

1

1

1

1

1

1

1

1

AX

C BOX

50

10212699 FERRITE CORE

K5ARP40X6.5X12

1

1

1

1

1

1

1

1

1

1

AS

C FCC

68

10246756 TAPE

RJM507041-001V01

6

6

6

6

6

6

6

6

6

6

AA

C

69

10256109 BOARD/DECOR

RJM506627-001V01

1

1

1

1

1

1

1

1

1

1

AH

C

Summary of Contents for Privia PX-720

Page 1: ...ELECTRONIC KEYBOARD without price PX 720 PX 720C SEP 2007 Ver 6 Oct 2015 PX 720C INDEX...

Page 2: ...ONTENTS SPECIFICATIONS 1 BLOCK AND WIRING DIAGRAM 2 PCB LAYOUT 3 CIRCUIT DESCRIPTION 4 PRINTED CIRCUIT BOARDS 5 DISASSEMBLY 7 DIAGNOSTIC PROGRAM 18 EXPLODED VIEW 21 PARTS LIST 23 SCHEMATIC DIAGRAMS 27...

Page 3: ...Tracks 2 Capacity Approximately 5 000 notes total Recorded Data Protection Built in ash memory Pedals Damper soft sostenuto Other Functions Touch Select 3 types Off Transpose 2 octaves 12 to 0 to 12...

Page 4: ...r Supply Circuit IC202 Q206 Q207 12V VA12 5V VD5 5V VE5 12V VC Speakers L R Main Volume CONSOLE PCB M681 CNA1 CONSOLE PCB M406 CNA4 Keyboard PCBs MCPZ KYA1 KYB2 KYA3 SUB PCB M408 PSA1 CONSOLE PCB M681...

Page 5: ...DAC Key controller SUB PCB M408 PSA1 Power supply circuit Filter Power amplifer Console PCBs M681 CNA1 Button Main volume M681 CNA2 Phones jack M681 CNA3 DC 12V terminal MIDI OUT IN terminals M681 CN...

Page 6: ...D5 E5 SI6 A4 A4 B4 C5 C5 D5 D5 E5 FI7 F5 F5 G5 G5 A5 A5 B5 C6 SI7 F5 F5 G5 G5 A5 A5 B5 C6 FI8 C6 D6 D6 E6 F6 F6 G6 G6 SI8 C6 D6 D6 E6 F6 F6 G6 G6 FI9 A6 A6 B6 C7 C7 D7 D7 E7 SI9 A6 A6 B6 C7 C7 D7 D7 E...

Page 7: ...5 PRINTED CIRCUIT BOARDS Main PCB M408 MDA1 Sub PCB M408 PSA1...

Page 8: ...6 Console PCB M681 CNA1 Console PCB M681 CNA2 Console PCB M681 CNA3 Console PCB M681 CNA4...

Page 9: ...hen assembling 1 Remove the Connector and Pedal cord 2 Remove 2 screws and then the Pedal unit 3 To damage neither the oor nor the main body the main body is put on the mat or the blanket etc 4 Remove...

Page 10: ...y 1 Remove the 20 screws and then the back of the speaker box 2 Remove the 4 screws for each speaker and then take out the speakers left and right Removing the T BRD UNIT 1 Remove 18 screws and then t...

Page 11: ...ove the 4 screws and the 2 stoppers on the left and right ends Precautions During Assembly To avoid any risk of damaging the stoppers during installation do not use an electric screwdriver 2 Remove th...

Page 12: ...10 Removing the PCBs M408 MDA1 PCB M408 PSA1 PCB M681 CNA3 PCB 1 Remove the twist ties that hold the cables in place 3 Remove the PCB case M408 MDA1 PCB M408 PSA1 PCB M681 CNA3 PCB 2 Remove 8 screws...

Page 13: ...Connector SPEAKER R Connector M681 CNA4 Connector Pedal FPC Keyboard Connector M408 MDA1 Connector M681 CNA3 Connector M681 CNA2 Connector SPEAKER L Connector Power SW 5 Remove 4 screws and the M408...

Page 14: ...hen the Pedal connector Removing the Front board 1 Remove the 10 screws and lift up the front board The panel is still connected by a lead 2 Remove the front board Front board Removing the M681 CN4 PC...

Page 15: ...13 To remove the CN PANEL 2 Remove 4 screws and the CN PANEL CN PANEL Removing the Side block 1 Remove the 6 screws left and right The left side The right side 2 Remove the side units left and right...

Page 16: ...CNA1 PCB M681 CNA2PCB 1 Remove the side case 4 Remove 4 screws 5 Remove the volume knob and the rubber key and M681 CNA1 PCB 2 Remove 2 screws and the M681 CNA2 unit 3 Remove 2 nuts and the M681 CNA2...

Page 17: ...15 Disassembling the right side unit Power switch 1 Remove the side case 2 Remove 2 screws and the Power switch Power switch...

Page 18: ...16 2 Remove 24 screws and then the KEY BOARD ASSY 3 Remove the keys To remove the Keyboard 1 Remove 2 screws and then 2 brackets...

Page 19: ...er keys One of the keys has the different length from others 5 Remove 9 screws then the MCPZ KYA1 PCB 6 Remove 11 screws then the MCPZ KYB2 PCB 7 Remove 9 screws then the MCPZ KYA3 PCB How to install...

Page 20: ...NOME RECORDER and buttons at the same time turn the power ON Wait for con rmation chords C4 E4 G4 sound 2 Release METRONOME RECORDER and buttons Diagnostic program 1 Automatic Test RAM check ROM check...

Page 21: ...nal ROM 07061813550 0 7 0 6 1 8 1 3 5 5 External ROM 07061813550 0 7 0 6 1 8 1 3 5 5 Internal ROM LED Sequence External ROM LED Sequence 1 0 LED 1 0 LED 2 7 L CLASSIC LED 2 7 L CLASSIC LED 3 0 LED 3 0...

Page 22: ...rom the jack L LED lights There are 2 headphone jacks Repeat Steps for each jack Press TONE SETTING button to nish the headphone check The con rmation chords C4 E4 G4 sound and the light on L LED turn...

Page 23: ...21 EXPLODED VIEW 26 25 27 4 6 30 28 29 13 15 20 21 22 12 10 11 40 42 41 43 39 37 31 38 47 1 48 9 14 19 18 17 16 29 28 49 69 36 1 35 36 32 33 34 24 2 3 5 45 45 42 44 7 50 8 23 68 68 46 43 1...

Page 24: ...22 Screw 8 Screw cap 8 Screw 2 Screw cap 2 Clip 2 56 67 54 55 66 66 70 71 53 57 52 51 60 61 64 59 62 58 63 58 65 51 3 51 4 51 2 51 1 51 5 52 3 52 2 52 1 52 5 52 4...

Page 25: ...spare parts department if you need these parts for refurbish 1 Prices and speci cations are subject to change without prior notice 2 As for spare parts order and supply refer to the GUIDEBOOK for Spa...

Page 26: ...1 1 1 1 1 1 1 AA C Q201 204 206 208 212 10206673 TRANSISTOR KTC3199 GR AT P 5 5 5 5 5 5 5 5 5 5 AA C CONSOLE N 3 10286861 PCB ASSY CNA3 TK RJM508135 001 1 1 1 1 1 1 1 1 1 1 BW C J603 10208247 CONNECT...

Page 27: ...WITCH THVV502GAA 7 7 7 7 7 7 7 7 7 7 AA X N 36 10286860 PCB ASSY CNA2 TK RJM508133 001 1 1 1 1 1 1 1 1 1 1 CD C N 36 1 10281486 BRACKET RJM507979 001V01 1 1 1 1 1 1 1 1 1 1 AC X J601 602 10171449 CONN...

Page 28: ...BOARD SPEAKER RJM505681 002V01 1 1 1 1 1 CN X 57 10127139 CONNECTOR ELP 4P 134 M417 1 1 1 1 1 1 1 1 1 1 AL C 58 10203698 NUT S WLA0 4X16Z3NQ 8 8 8 8 8 8 8 8 8 8 AA X N 59 10286837 BOARD ASSY PEDAL TK...

Page 29: ...27 SCHEMATIC DIAGRAMS Main PCB M408 MDA1...

Page 30: ...28...

Page 31: ...29 Sub PCB M681 PSA1...

Page 32: ...30 Console PCB M681 CNA1...

Page 33: ...31 Console PCBs M681 CNA2 CNA3 CNA4 Console PCB M681 CNA2 Console PCB M681 CNA3 Console PCB M681 CNA4...

Page 34: ...pecifics of PCB LAYOUT was added P3 Ver 2 Dec 2007 Correction of the EXPLODED VIEW P21 to P22 Correction of the PARTS LIST P25 to P26 Ver 3 Jan 2008 Correction of the PARTS LIST P26 Ver 4 Feb 2009 Cor...

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