yamaha cp4 40stage 2014jan


Contents

Features: Designed for the Stage Authentic acoustic- and electric-piano sounds

Ease-of-use

Wooden keys

Portable

Comparison of CP4 and CP40 STAGE Keyboard

Number of Voices

Number of control sliders

Connectors and Power supply


Contents

Assembly of the CP4 STAGE (CP40 STAGE) Upper and Lower case assemblies

Upper:

Character LCD

PNL, PNR, SLD, AJK, DJK, (DCIN) and DM circuit boards

PS ERP assembly * CP4 STAGE only

Lower: NW GKS keyboard (GHD LKS keyboard)


Contents

Service Topics

How to check the CP4/40 STAGE Checking the settings

Data backup, Initializing the settings

Firmware version update

Block diagram

Test Program and DM Test points

How to disassemble the CP4/40 STAGE 1. Accessing the keyboard

2. Accessing the circuit boards


Features: Designed for the Stage

Authentic acoustic- and electric-piano sounds

Ease-of-use

Wooden keys

Portable


Additions: Auto Power Off

The CP4/40 STAGE features the Auto Power Off function.

Default setting: 30 minutes

- Press the [UTILITY] button and select the 01: General.

- Select AutoOff and set the value.

- Press the [STORE] button to end.

This message will appear.

How to change the setting:

Disabling Auto Power Off (simple method):

Auto power off

disabled


Additions: Auto Power Off

NOTE:

The power switch is a lock type switch.

To turn the power on after the Auto Power Off is executed:

1. Press the power switch to the OFF (Standby) position.

2. Press the power switch again to the ON position.


Comparison of CP4 and CP40 STAGE

Keyboard

Number of Voices




Keyboard: NW GKS vs. GHD LKS

CP4 STAGE and CP40 STAGE are equipped with a different kind of Graded Hammer (GH) keyboard.

Keyboard CP4 STAGE CP40 STAGE

GH keyboard Type NW GKS GHD LKS

- White key Natural wood

(synthetic Ivory Key-tops)

-

(Resin)

- Rubber contact 3 contacts 2 contacts


Number of Voices

CP4 STAGE includes the CFX sound. CP4 STAGE CP40 STAGE

Voices 433 297

- CFX 15 -

- CF 15 15

- S6 15 -

- Rd 15 3

- Wr 6 6

- CP800 8 8

- DX 18 18

- Clav, Organ 67 49

- Strings,Choir, PAD 86 67

- Others 174 117

- Others (Drum) 14 14



CP4 STAGE.

CP4 STAGE CP40 STAGE

Parts 3 2

Effects

- Master equalizer 5 bands 3 bands



Connectors CP4 STAGE CP40 STAGE

Output

PHONES

L/MONO, R

L,R (XLR)

PHONES

L/MONO,R

-

Foot switch SUSTAIN, ASSIGNABLE

Foot Controller 2 jacks 1 jack

MIDI IN, OUT

USB TO HOST, TO DEVICE

AUX IN 1 jack (stereo mini-jack)

Power supply CP4 STAGE CP40 STAGE

Power cord

(AC IN)

AC adaptor PA-150

(DC IN)


Assembly of the CP4 STAGE

(CP40 STAGE)

Upper and Lower case assemblies

Upper:

Character LCD

PNL, PNR, SLD, AJK, DJK, (DCIN) and DM circuit boards

PS ERP assembly * CP4 STAGE only

Lower:

NW GKS keyboard (GHD LKS keyboard)



Upper case assembly

Lower case assembly

DJK

PNL

LCD SLD

PNR

DM AJK PS ERP

NW GKS keyboard



Upper case assembly

Lower case assembly

DJK

PNL

LCD SLD

PNR

DM AJK DCIN

GHD LKS keyboard


Service Topics

How to check the CP4/40 STAGE

Checking the settings Data backup, Initializing the settings


Block diagram



Checking the settings

1. Prepare: A compatible USB flash memory device

Connect the USB flash memory to the [TO DEVICE] terminal.

2. Call up the save display:

- Press the [FILE] button.

- Select the 01: Save and then press the [ENTER] button.

3. Set the file name:

- Set the file name and then press the [ENTER] button.

4. Execute: Press the [+1/Yes] button.

3.

Data backup procedure



Initializing the settings (There are 2 ways.)

1. Call up the Factory Set display:

Press the [UTILITY] button, select the 07: JOB and 01: FactorySet.

3. Execute: Press the [+1/Yes] button.

1. Enter the Test Program

2. Select the 042 Factory Set

3. Execute: Press the [ENTER] button.

A. Normal mode

B. Test mode

2. Set the PowerON Auto parameter to off.

2.



1. Preparation:

- Check the Firmware version:

Press the [UTILITY] button.

Select the 07: JOB and 02: Version.

- Download the Firmware Updater:

1. Download the latest Firmware Updater from Yamaha

website.

2. Copy the program file (xxx.PRG) to a compatible USB flash

memory device.

!No other files should be present in the USB flash memory!




2. Enter the update mode:

- Connect the USB flash memory to the [TO DEVICE] terminal.

- Hold down the [ ] (play) button, then press the power on.

3. Execute: Press the [ ] (play) button.

4. Reboot:

- Turn off the instrument and remove the USB flash memory.

- Turn the power on and confirm the Firmware version.



Service Topics




Block diagram (CP4 STAGE)



Block diagram Operation & system control section

Audio signal section

Power supply section

SLD

Panel

LCD

PNL PNR

PNL signal

Pitch

Bend PB

Modulation

Wheel MOD

Master

Volume MVOL

Sliders SLD[0-2]

Switches S[*]

LEDs L[*], D[*]

PNR signal

Encoder S[2, 3]

Switches S[*]

LEDs L[*], D[*]

SLD signal

Sliders SLD[3-7]

CPU (IC1)

E-bus

(IC18)

CPU

DM





Keyboard

E-bus

IC

E-bus

IC

CPU DM

CP4 STAGE CP40 STAGE





Other Interface (USB, MIDI, Foot controller and Foot switch )

DM CPU (IC1)

DJK

E-bus

(IC18)


Block diagram

CPU

DA

DC

Operation & system control section



ROM/RAM

Wave

ROM/RAM

System control & sound processing

CPU error detect

(To mute output)


Block diagram

DA

Operation & system control section



Audio signal

DM

Amp

Amp

Amp Amp

Amp





Power supply (CP4 STAGE)

AC

DCDC

Reg.

Reg.

Hi Side

SW

Standby

Control circuit

(Auto power off)

IC29

IC21

IC16

DA

PANEL, Keyboard, DJACK

CPU

USB

+15V, -15V

Distorted or No sound

Not booting up

Amp

+5D

+3.3D

+1.2D

PB&MW

15V

E-bus IC

IC7

ROM, RAM

STBY

Power SW

Power

supply Fuse





Power supply (CP40 STAGE)

PA-150

DCDC

Reg.

DCDC

Hi Side

SW Standby

Control circuit

(Auto power off)

IC29

IC28

IC16

DA

PANEL, Keyboard, DJACK

CPU

USB

+9A

Distorted or No sound

Not booting up

Amp

+5D

+3.3D

+1.2D

PB&MW

+5A

E-bus IC

IC7 ROM, RAM

STBY

Power SW

Reg.

Reg.

IC400

IC21 Poly SW

12V


Service Topics




Block diagram



Test Program and DM test points

Refer to the service manual. * Similar to the CP series.

Test Program Memory check2 (Full address)

Panel check (switches, LEDs,

LCD, sliders and encoders)

USB and MIDI check

etc

DM Test points Voltage checks

Signal output checks


Service Topics

How to disassemble the CP4/40 STAGE

1. Accessing the keyboard

2. Accessing the circuit boards


Thank you for your attention

yamaha cp4 40stage 2014jan

Documents

cp4 stage cp40 stage

cp4 stage cp40 stage

cp4 stage cp40 stage

cp440 stage

ghd lks cp4 stage

auto power

power switch

contacts yamaha corporation