Casio PRIVIA PX-130 Troubleshooting guide

ELECTRONIC KEYBOARD
(without price)
PX-130
JUL. 2009
PX-130WE
Ver. 5 : Jan. 2011
INDEX

CONTENTS
SPECIFICATIONS..................................................................................................................... 1
BLOCK AND WIRING DIAGRAM ............................................................................................ 2
PCB LAYOUT ........................................................................................................................... 3
CIRCUIT DESCRIPTION .......................................................................................................... 4
PRINTED CIRCUIT BOARDS................................................................................................... 6
DISASSEMBLY....................................................................................................................... 11
DIAGNOSTIC PROGRAM ...................................................................................................... 32
EXPLODED VIEW................................................................................................................... 39
PARTS LIST............................................................................................................................ 41
SCHEMATIC DIAGRAMS....................................................................................................... 47

– 1 –
SPECIFICATIONS
Keyboard 88-key piano keyboard, with Touch Response
Maximum Polyphony 128 notes
Tones 16
Layer (excluding bass tones)
Split (Low-range bass tones only)
Effects Brilliance (–3 to 0 to 3), Reverb (4 types), Chorus (4 types), DSP,
Acoustic Resonance
Metronome Beats: 0, 2, 3, 4, 5, 6
Tempo Range: 20 to 255
Duet Adjustabletonerange(−1to2octaves)
Music Library Number of Songs: 60, User Songs: 1 (memory capacity: up to 65 KB) *
* Based on 1 KB = 1024 bytes, 1 MB = 10242bytes
Song volume: Adjustable
Part On/Off: L, R
Recorder Functions: Real-time recording, playback
Number of Song: 1
Number of Tracks: 2
Capacity: Approximately 5,000 notes total
 RecordedDataProtection:Built-inashmemory
Pedals Damper
(Soft and sostenuto pedal operations enabled by the optional SP-32 Pedal Unit.)
Other Functions Touch Select: 3 types, Off
Transpose: 2 octaves (–12 to 0 to 12)
Tuning: A4 = 440.0 Hz ± 99 cents (variable)
Temperament
Octave shift
Operation lock
MIDI 16-channel multi-timbre receive
Inputs/Outputs PHONES jacks:Stereo mini jacks × 2
  Outputimpedance:3Ω
Output Voltage: 1.5 V (RMS) MAX
Power: 12 V DC
USB port: TYPE B
Damper Pedal Jack: Standard jack
Pedal connector
Speakers [13 cm × 6 cm (rectangular)] × 2 (Output 8 W + 8 W)
Power Requirements AC Adaptor: AD-A12150LW
Power Consumption 12 V 18 W
Dimensions 132.2 (W) × 28.6 (D) × 13.5 (H) cm (52 1/16 × 11 1/4× 5 5/16 inch)
Weight Approximately 11.2 kg (24.7 lbs)

– 2 –
BLOCK AND WIRING DIAGRAM
CN601 (12 pin)
CN4 (12 pin)
CN5 (5 pin)
CN2 (20 pin)
CN802 (20 pin)
CN801 (12 pin) CN803 (12 pin)
CN1 (30 pin)
CN804 (30 pin)
CN801 (20 pin)
CN603 (20 pin)
CN602 (14 pin)
CN803 (14 pin) CN601 (14 pin) CN601 (12 pin) CN602 (12 pin)
CN802 (14 pin)
CN12 (10 pin)
CN201 (5 pin)
CN206 (4 pin)
CN211
CN601 (4 pin)
CN202 (10 pin)
CN205
CN213
USB
(CN9)
BUTTONS
CN602 (5 pin)
SPEAKERS
POWER
SWITCH
DAMPER
PEDAL (J204)
PHONES (J601, J602)
(R)
(L)
12 V
DC IN
(J202)
PEDAL
MPU
IC5
DAC
IC13
HEADPHONE
AMPLIFIER
IC201 POWER
AMPLIFIER
IC202
SDRAM
(256 Mbit)
IC2
VD3
VCP
VA3
VD5
VD5
LOUT
ROUT
VD5
VA12
VA12
VA5
POWER SUPPLY
CIRCUIT
IC1, Q7, C107-C113
POWER SUPPLY CIRCUIT
IC203, Q207, D203, D204,
C231, C233-C237, C239
KEY
CONTROLLER
IC14
MAIN PCB
(M900-MDA1)
SUB PCB
(M900-PSA1)
KEYBORAD PCB
(MACP-KYB1)
KEYBORAD PCB
(MACP-KYD1)
CONSOLE PCB
(M900-CNA1)
KEYBORAD PCB
(MACP-KYA2)
KEYBORAD PCB
(MACP-KYB2)
KEYBORAD PCB
(MACP-KYA1)
KEYBORAD PCB
(MACP-KYC1)
KEYBORAD PCB
(MACP-KYC2)
VOLUME PCB
(M900-CNA2)
JACK PCB
(M900-HPA1)
FI0-FI10, SI0-SI10, KC0-KC7
KI0-KI10,
KO0-KO-7, NC
SDD0-SD015
SDA0-SDA12, SDBA0, SDBA1
NOR
FLASH MEMORY
(256 Mbit)
IC6
PSRAM
(32 Mbit)
IC7
D0-D15
A1-A23
A1-A21
D0-D15
D0-D15

– 3 –
PCB LAYOUT
MACP-KYA1, MACP-KYA2,
MACP-KYB1, MACP-KYB2
MACP-KYC1, MACP-KYD1,
MACP-KYC2
MACP-KYA1 MACP-KYA2 MACP-KYB1
M900-MDA1M900-PSA1M900-CNA1M900-CNA2
MACP-KYB2
MACP-KYC1
M900-HPA1
MACP-KYD1 MACP-KYC2
Left side
PCBs Components
Main PCB M900-MDA1 MPU, Reset IC, SDRAM (256 Mbit), Flash Memory (256 Mbit),
PSRAM (32 Mbit), Power Supply Circuit, Key Controller, USB Port
Sub PCB M900-PSA1 DC12VTerminal,PowerSupplyCircuit,Filter,PowerAmplier,
Damper Pedal Jack
Console PCBs M900-CNA1 Buttons
Volume PCB M900-CNA2 Main Volume
Jack PCB M900-HPA1 Phones Jacks
Keyboard PCBs MACP-KYA1 Keyboard
MACP-KYA2
MACP-KYB1
MACP-KYB2
MACP-KYC1
MACP-KYC2
MACP-KYD1

– 4 –
CIRCUIT DESCRIPTION
KEY MATRIX
KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7
FI0 A0A0#B0C1C1#D1D1#E1
SI0 A0A0#B0C1C1#D1D1#E1
FI1 F1F1#G1G1#A1A1#B1C2
SI1 F1F1#G1G1#A1A1#B1C2
FI2 C2#D2D2#E2F2F2#G2G2#
SI2 C2#D2D2#E2F2F2#G2G2#
FI3 A2A2#B2C3C3#D3D3#E3
SI3 A2A2#B2C3C3#D3D3#E3
FI4 F3F3#G3G3#A3A3#B3C4
SI4 F3F3#G3G3#A3A3#B3C4
FI5 C4#D4D4#E4F4F4#G4G4#
SI5 C4#D4D4#E4F4F4#G4G4#
FI6 A4A4#B4C5C5#D5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#E7
FI10 F7F7#G7G7#A7A7#B7C8
SI10 F7F7#G7G7#A7A7#B7C8
KO0 KO1 KO2 KO3 KO4 KO5 KO6 KO7
KI0 A03A0#3B03C13C1#3D13D1#3E13
KI1 F13F1#3G13G1#3A13A1#3B13C23
KI2 C2#3D23D2#3E23F23F2#3G23G2#3
KI3 A23A2#3B23C33C3#3D33D3#3E33
KI4 F33F3#3G33G3#3A33A3#3B33C43
KI5 C4#3D43D4#3E43F43F4#3G43G4#3
KI6 A43A4#3B43C53C5#3D53D5#3E53
KI7 F53F5#3G53G5#3A53A5#3B53C63
KI8 C6#3D63D6#3E63F63F6#3G63G6#3
KI9 A63A6#3B63C73C7#3D73D7#3E73
KI10 F73F7#3G73G7#3A73A7#3B73C83

– 5 –
NOMENCLATURE OF KEYS
F#3G#3 A#3 C#4D#4 F#4G#4A#4 C#5D#5 F#5G#5 A#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 B6A6G6F6E6D6 C7
C#3A#2G#2F#2D#2C#2
C1 D1 E1 F1 G1 A1 B1A0 B0
A#1A#0 G#1F#1D#1C#1 A#6G#6F#6D#6C#6
B7A7G7F7E7D7 C8
A#7G#7F#7D#7C#7
BUTTON MATRIX
SO0 SO1 SO2
SI0 FUNCTION METRONOME (R) ELEC PIANO, DUET
SI1 ―SONG u/n, DEMO GRAND PIANO (MODERN),
REVERB
SI2 ―GRAND PIANO (CLASSIC),
CHORUS RECORDER (L)

– 6 –
PRINTED CIRCUIT BOARDS
Top View
Bottom View
Top View
Bottom View
Main PCB M900-MDA1 Sub PCB M900-PSA1
Jack PCB M900-HPA1
Top View Bottom View

– 7 –
Console PCB M900-CNA1 Volume PCB M900-CNA2
Top View
Top View
Bottom View
Top View
Bottom ViewBottom View
KEYBOARD PCB MACP-KYA1

– 8 –
KEYBOARD PCB MACP-KYA2
KEYBOARD PCB MACP-KYB1
Bottom View
Top View

– 9 –
KEYBOARD PCB MACP-KYB2
KEYBOARD PCB MACP-KYC1
Bottom View
Top View

– 10 –
KEYBOARD PCB MACP-KYC2
KEYBOARD PCB MACP-KYD1
Bottom View
Top View
Top View
Bottom View

– 11 –
DISASSEMBLY
The photos show a prototype. The appearance of the instrument, such as color, may
differ from the actual model.
Removing the main panel

Remove 16 screws and eight L-COVERs on the bottom surface of the main unit.1.
You will see a screw inside when you remove an L-COVER. Undo and remove the screw through each2.
opening (eight screws in total).
Do not drop the screws inside the main unit.NOTE:
Do not touch the hammer with the screwdriver while loosening the screws.NOTE:
L-COVER

– 12 –
Place the main unit with the keys facing up. Undo three screws on the right side case.3.
Remove the right side case.4.
Right side case
Undo three screws on the left side case.5.
Remove the left side case.6.
The power switch and the M900-HPA1 PCB are assembled to the left side case. Do not pullNOTE:
the left side case forcibly.
Left side case
M900-HPA1 PCB Power switch
Undo and remove two screws from each side case (S-CASE-IL and S-CASE-IR).7.

– 13 –
Remove the main panel.8.

– 14 –
Removing the main PCB (M900-MDA1)

Release the lock and remove two FFCs.1.
Remove two connectors.2.
Remove the pedal connector connected to the lower case.3.
FFC (Keyboard) FFC (Keyboard)
Connector (M900-PSA1)Connector (M900-CNA1)
Pedal connector
Remove the screw below the USB jack on the back of the main unit.4.
RemovevescrewsandthenthemainPCB(M900-MDA1).5.

– 15 –
Removing the sub PCB (M900-PSA1)

Remove four connectors.1.
Unsolder the FFC connected to the M900-CNB2 PCB shown on the top right.2.
Remove six screws and then the sub PCB (M900-PSA1).3.
Connector (Left speaker) Connector (Power switch)
Connector (Right speaker)
Connector (M900-HPA1) M900-CNA2 PCB
FFC (M900-PSA1)

– 16 –
Removing the console PCB (M900-CNA1) and the volume PCB (M900-CNA2)

Remove 10 screws and then the console PCB (M900-CNA1).1.
Disengage the volume knob on the front of the main panel.2.
Remove three screws and then the volume PCB (M900-CNA2).3.
Once the console PCB (M900-CNA1) is removed, you may disengage the button, the LED cover, the
LED spacer, and the nonwoven band.

– 17 –
Removing the power switch and the jack PCB (M900-HPA1)

Remove four screws on the left side case, and disengage the jack PCB (M900-HPA1) and the power1.
switch.
Removing the speakers

Remove three screws.1.
Remove two hooks and then the speaker cover.2.
Remove four screws and then the speaker.3.
Similarly remove the other speaker.4.
Speaker cover
Hooks
Power switch
M900-HPA1 PCB

– 18 –
Removing the KY-ASSY

Remove all three screws from either side case (S-CASE-IL and S-CASE-IR), and then remove both1.
side cases.
Remove 26 screws on the bottom of the main unit.2.
Remove three screws and then the KY-ASSY.3.
KY-ASSY