Akai MPC-1000 Service manual

Music production Center

SERVICE MANUAL

SAFETY INSTRUCTIONS

INFORMATIONS

1. Parts identified by the  symbol are critical for safety. Replace them only with the parts number specified.

2. In addition to safety, other parts and assemblies are specified for conformance with such regulations as those applying to spurious radiation. These must also be replaced only with the specified replacements. Examples : Noise blocking capacitors, noise blocking filters,

etc.

3. Use specified internal wiring. Note especially :

1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

4. Use specified insulating materials for hazardous live parts. Note especially :

1) Insulation Tape

2) PVC tubing

3) Spacers (insulating barriers)

4) Insulation sheets for transistors

5) Plastic screws for fixing micro switches

5. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.), wrap the ends of the wires securely around the terminals before soldering.

SYMBOLS FOR PRIMARY DESTINATION

Unit destinations are indicated with letters as shown below.

Symbols Principal Destinations

A U.S.A B England E Europe J Japan

V X1 X4

MAKE YOUR CONTRIBUTION TO PROTECT THE ENVIRONMENT

Used batteries with the ISO symbol for recycling as well as small accumulators (rechargeable batteries), mini-batteries (cells) and starter batteries should not be thrown into the garbage can. Please leave them at an appropriate depot.

PRECAUTIONS FOR LITHIUM BATTERY

The lithium battery may explode when [OBSERVE THE FOLLOEING WHEN REPLACING]

Germany Japan Universal Area

incorrectly replaced.

6. Make sure that wires do not contact heat producing parts (heat sinks, oxide metal film resistors, fusible resistors, etc.).

7. Check that replaced wires do not contact sharp edged or pointed parts.

8. Also check areas surrounding repaired locations.

9. Make sure that foreign objects (screws, solder droplets, etc.) do not remain inside the set.

SAFETY CHECK AFTER SERVICING

After servicing, make measurements of leakage-current or resistance in order to determine that exposed parts are acceptably insulated from the supply circuit. The leakagecurrent measurement should be done between accessible metal parts (such as chassis, ground terminal, microphone jacks, signal input/output connectors, etc.) and the earth ground through a resistor of 1500 ohms paralleled with a 0.15  F capacitor, under the unit’s normal working conditions. The leakage-current should be less than 0.5 mA rms AC. The resistance measurement should be done between accessible exposed metal parts and power cord plug prongs with the power switch (if included) “ON”. The resistance should be more than 2.2 M ohms.

 Replace with the same make and type or equivalent recom

mended by manufacturer.

 Place battery in correct polarity.  Do not short the terminals.  Do not charge battery.  Do not dispose of battery in fire.

SERVICE MANUAL

I. SPECIFICATIONS

General

Display

240 x 64 dot graphic LCD w/back light

Memory card slot

Compact Flash (The size of the compact flash card the MPC1000 can handle is from 32MB to 2GB)

Dimentions (W x H x D)

330 x 75.5 x 228.2(Max 234.6)

Weight

3.45kg

Power reqirement

19W

Sound generator

Sampling rate

44.1kHz

Memory capacity

16MB standard (11.5MB for sound memory), expandable to 128MB

Recording time

136sec. (16MB, MONO), 24m28sec. (128MB, MONO)

Memory expansion slot

1 x for optional EXM128

Data format

16-bit linear

Polyphony

Dynamic filtering

2 x 2-pole filter per voice

Filter type

Low pass, Band pass, High pass

Preset sound memory

5MB

Number of programs

Effects

2 stereo effects and Master effect

Effect type

Chorus, Flanger, Bit grunger, 4 band EQ, Compressor, Phase shifter, Tremolo, Flying pan, Reverb Master effect: 4 band EQ, Compressor

Sequencer

Maximum events

100,000 notes

Resolution

96 parts per 1/4-note

Sequences

Tracks per sequence

MIDI output channels

32 (16 channels x 2 outputs)

Song mode

20 songs, 250 steps per song

Drum pad

16 (velocity and pressure sensitive)

Drum pad banks

Sync mode

MIDI clock

* The specifications are subject to change without the prior notice.

SERVICE MANUAL

* The specifications are subject to change without the prior notice.

Inputs / Outputs

Record input (L and R)

1/4-inch stereo phone x 2, balanced -40dBu, input impedance 11k ohms; Max. Input level +10dBu

Digital input

RCA-pin x 1 S/PDIF

Stereo output (L and R)

1/4-inch phone x 2 unbalanced +11dBu, output impedance 1k Ohms, Max. output level +17dBu

4 individual outputs

1/4-inch phone x 4 unbalanced +11dBu, output impedance 1k Ohms, Max. output level +17dBu

Phones output

1/4-inch stereo phone x 1, 200mW / 100 ohms

Digital output

RCA-pin x 1 S/PDIF

MIDI inputs

5-pin DIN x 2

MIDI outputs

5-pin DIN x 2

USB

Slave connector x 1, USB MASS STORAGE CLASS support. (You need Windows 2000/Me/XP or later version, or MacOS 9.x/10.x or later version. )

Footswitches

1/4-inch phone x 2

Standard accessories

32MB Compact Flash card, Power cable, Operator's manual

Options

EXM128

128MB expansion memory card

Data Compatibility (THRU Computer)

MPC2000XL

SEQ, WAV, PGM (Most parameters of PGM file can be loaded.)

MPC4000

SEQ, WAV , PGM (DRUM program only. Only note assign and tune are loaded.)

MPC3000

No compatibility

Z4/Z8

WAV only

S5000/6000

WAV only

S1000/3000

No compatibility

SERVICE MANUAL

II. DISASSEMBLY

In case of trouble, etc., necessitating dismantling, please dismantle in the order shown in the illustrations. Reassemble in the reverse order.

ZS-820454X

ZS-820455X

ZS-820454X

SERVICE MANUAL

III. PRINCIPAL PARTS LOCATION

BA - L4033A502D PC OPERATION - F BLK

EM - 821776X IND LCD PS24064LRU - ETA - H03

BA - L4033A502A PC OPERATION - R BLK

BA - L4033A501B PC AD/DA BLK

BA - L4033A502C PC OPERATION - L BLK

BA - L4033A501A PC CPU BLK

BA - L4033A502B PC PAD BLK

BA - L4033A502E PC MIDI BLK

BA - L4033A501E PC FILTER BLK

BA - L4033A501C PC FRONT BLK

SERVICE MANUAL

BA - L4033A501D PC HD CONNECT BLK

BP - 821839X SW POW SNP - 9031

IV. SUPPLEMENTARY INFORMATION

[Update procedure]

===How to copy the OS binary file to a CF card using a MPC1000 and a computer==== Below procedure will utilize the MPC1000 as a Compact flash writer.

Required Equipment : Compact Flash (CF), Computer with USB mass storage class support (Windows

1. Copy/Download the OS data to a computer’s hard disc drive and extract it ’s data.

2. Insert a Compact Flash card into the MPC1000.

3. Turn on the power of the MPC1000.

4. Go to Load mode, then press USB (F4).

5. Connect a USB cable between the computer and the MPC1000. (Display will change from “Status=Not Connected ” to “Status=Connected ”)

6. The CF in the MPC1000 will be mounted as a drive on the computer.

7. Copy the OS binary file to the CF in the MPC1000.

8. Disconnect the USB cable. (MPC1000 will not accept any user in put while a USB

XP/ME/2000 or Mac OSX, OS9.x)

cable is connected)

Note: The OS data can also be copied to a Compact Flash card using any other Compact Flash card reader/writer. In this case it is not necessary to connect the MPC1000 to a

====How to update the MPC1000==== MPC1000 is updated using a Compact Flash card containing OS data.

Insert a CF containing OS data into the MPC1000.

Turn on the power of the MPC1000 while pressing down the “Window ” button.

To start the update process, p ress the “REC” button. After the update process is

Note: The MPC1000 can not be updated from a computer via USB directly – updating is

====Hidden model====

( Note: V1.06 is not supported.)

computer.

finished the MPC1000 will re - boot automatically.

only possible using a CF card.

The MPC1000 has the following hidden modes, which can be accessed by certain input sequences or holding down a key while powering on the unit. Currently these modes are not supported in OS Version 1.06.

[Owner Name]

Mode > Other > F3/FOOTSW > F6 > Enter owner name [Initialize parameter]

in the startup screen, “Owner Name” will be displayed.

Hold down the ERASE button while powering on the unit. [Memory Check]

Hold down the PLAY button while powering on the unit. [Demo mode ]

Hold down the Bank “D” button while powering on the unit. In this mode “Internal memory” on the Save page can not be selected . In the startup screen “Demo” will be displayed

instead of “MPC1000”. Once demo mode has been activated it will remain active even if power is turned off and on again. To turn off the Demo mode, hold down the Bank “D” button while powering on the unit.

SERVICE MANUAL

+ 15 hidden pages