Numark MIXDECK EXPRESS BLACK

SPECIFICATION
CD FUNCTION
PITCH RANGE……………………….Press and release the pitch button to cycle through pitch fader settings of +/- 6%, 12%, 25%
and 100%.You can also disable the pitch fader by pressing the pitch button again after
selecting 100%.
PITCH BEND +,-……………………...Allows you to briefly adjust the speed of the music faster or slower for as long as
the button is held.
TIME…………………………………..Toggles the display to show elapsed time, time remaining on the current song, or
time remaining of an entire audio CD.
MODE………………………………....There are two playback modes(Auto-Cue . Continuous).
PROG……………………………….....This button helps you create a program – a sequence of tracks to play continuously.
CUE…………........................................Returns and pauses the music at the last set cue point.
PLAY/PAUSE........................................Starts or resumes playback if the Deck is paused. Pauses playback if the Deck is playing.
LOOP IN/OUT / RELOOP………….....These buttons are used to define your beginning and ending loop points (LOOP IN and
LOOP OUT) or to replay or restart your loop (RELOOP).
TRACK…………………………………Used to skip from track to track, for folder navigation and as an "enter" button.
TAP……………….…………………….Pressing this button in time with the beat will help the built-in BPM counter detect the
proper tempo. Holding the button for 2 seconds will cause the BPM counter to
reset and recalculate.
SCRATCH………………………………Turns scratch mode on or off.
SEARCH……………………………......When engaged, search mode will allow you to use the center of the jog wheel to
quickly scan through the current track.
REVERSE…………………..…….…....Press this button to reverse playback of the track (the button will be lit). Press it again to
return to Normal playback.
BRAKE……………………….....…......Press this button to activate braking (the button will be lit).
SOURCE……………………….............Press the SOURCE button to choose which audio source you want to play
(CD, USB A, USB B, or USB MIDI controller).
EJECT……………….………………….Press this button to eject the CD.
SERVICE MANUAL
MODEL:MIXDECK EXPRESS BLACK

Numark MIXDECK EXPRESS BLACK Specifications

General

Type	DJ Controller
Decks	2
Channels	2
USB	Yes
Compatibility	Serato DJ Intro
Media	USB, CD
Inputs	2 x RCA
Outputs	RCA
Microphone Input	Yes
Headphone Output	Yes

Summary

SPECIFICATION

PITCH RANGE

Cycles pitch fader settings (+/- 6%, 12%, 25%, 100%). Can be disabled.

PITCH BEND +,-

Briefly adjusts music speed faster or slower while button is held.

CUE

Returns and pauses music at the last set cue point.

PLAYPAUSE

Starts/resumes playback or pauses playback.

LOOP INOUTRELOOP

Defines loop points or restarts a loop.

SOURCE

Chooses audio source: CD, USB A, USB B, or MIDI controller.

MIXER FUNCTION

INPUT CONNECTORS

Details RCA and 1/4" TRS jack inputs for microphone and line/phono.

OUTPUT CONNECTORS

Details RCA and 1/4" TRS jack outputs for master, phone, and aux.

AUDIO OUTPUT SPECIFICATIONS

Performance Standards

Specifies output level, S/N ratio, frequency response, and distortion.

DISASSEMBLY PROCEDURES

CABINET AND BOTTOM CHASSIS REMOVAL

Steps to remove the unit's outer cabinet and bottom chassis.

FRONT PCB AND SLOT-IN LOADER REMOVAL

Procedure for removing the front PCB and slot-in loader assembly.

SWITCHING POWER AND MAIN PCB REMOVAL

Procedure for removing the switching power and main PCB assemblies.

OTHER PCB ASSEMBLY REMOVAL

Steps to remove LCM, Mixer, CTRL, and Cross Fader PCB assemblies.

PACKING DIAGRAM

Included Components

Visual guide of all items included in the product packaging.

WIRING DIAGRAM

Internal Component Connections

Schematic showing electrical connections between internal components.

EXPLODE DRAWING

Assembly Breakdown View

Exploded view illustrating the physical arrangement of internal parts.

BILL OF MATERIALS (BOM)

Component Part List

List of all parts, P/N, description, quantity, and reference numbers.

SCHEMATICS - DSP

NC21 DSP Section

Schematic diagram for the Digital Signal Processor (DSP) module.

SCHEMATICS - POWER & IO

NC21 Power and IO Circuitry

Schematic for power supply and input/output interfaces.

SCHEMATICS - POWER REGULATOR

DSP Core Power Regulator

Schematic detailing the power regulator for the DSP core.

SCHEMATICS - INPUTOUTPUT

NC21 IO Circuits

Schematic for the main input/output circuits.

SCHEMATICS - MICROCONTROLLER

NC21 MICON Section

Schematic diagram for the microcontroller (MICON) unit.

SCHEMATICS - SOUND CARD

NC21 Sound Card Circuitry

Schematic diagram for the sound card functionality.

PCB LAYOUTS - MAIN

Main PCB Component Layout

Layout of components on the main printed circuit board.

SCHEMATICS - FUN (LEFT)

NC21 Fun Left PCB Schematic

Schematic for the left-side functional PCB.

PCBS - FRONT AND LEFT FUN

NC21 Front PCB Schematic

Schematic diagram for the front panel PCB.

NC21 Fun Left PCB Layout

Component layout for the left-side functional PCB.

NC21 Shielding PCB Schematic

Schematic diagram for the shielding PCB.

SCHEMATICS - FUN (RIGHT)

NC21 Fun Right PCB Schematic

Schematic for the right-side functional PCB.

PCB LAYOUTS - FUN (RIGHT)

NC21 Fun Right PCB Component Layout

Layout of components on the right-side functional PCB.

SPARE PCB

NC21 Spare PCB Schematic

Schematic diagram for the spare PCB.

SCHEMATICS - MIXER

NC21 Mixer Circuitry

Schematic for the mixer section, including gain and fader controls.

ROHM SERVO PCB

Servo Control Schematic and Layout

Schematic and component layout for the servo motor control board.