Numark iDJ3 Service Manual

MS/CN/RE/DM
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ASSY NUMBER:
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1
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2
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3
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4
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5
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6
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D
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C
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B
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A
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C
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D
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B
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A
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COMPANY:
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TITLE:
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PART NUMBER:
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FILENAME:
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SCALE:
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RELEASED:
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DRAWN:
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DATED:
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DATED:
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SIZE:
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SHEET:
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OF
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5
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5
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NKC6IOA13A.sch
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C
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9-79-0571-0-0
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9-40-0571-0
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NKC6 IO PCB
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NUMARK
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OUTPUT
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Vpp=2.145Vpp
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INVERTING LPF
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G = 1.66 = 4.4dB @ 1kHz
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Fc = 40kHz
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INVERTING MIX 1
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Vout = +2.0dBV
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Vout = +2.0dBV
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G=1=0dB
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MIC PREAMP
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G = 440 = 52.9B @ 1kHz
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Vpp=5.1Vpp
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MIC INPUT
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Vpp=11.5mVpp
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MASTER OUT
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INVERTING MIX 2
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Vout = +2.0dBV
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G=1=0dB
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IPOD
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MASTER LEVEL
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G=0 to 0.5
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INVERTING GAIN
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G=2
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Vpp=2.145Vpp
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HEADPHONES
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INVERTING LPF
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G = 1.66 = 4.4dB @ 1kHz
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Fc = 40kHz
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Vout = +2.0dBV
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INVERTING
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DRIVER
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Heaphones board
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MASTER DAC
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OUTPUT
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CUE DAC
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CUE LEVEL POT
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Vout = -1.0dBV
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G=0 to 0.5
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G=2
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IPOD LEVEL POT
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Vout = +2.0dBV
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G=0 to 1
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SOURCE SELECT
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& LEVEL POT
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OUTPUT
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0.9Vrms (-0.9dBV)
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INVERTING GAIN
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Vout = +2.0dBV
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G = 1.4
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NJM2112 can drive 2.5kohm load to within 0.5V of rail
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-4V charge pump may sag to -3.5V
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Therefore Full Scale = 3.0V +3.0V = 6.0Vpp (+6.53dBV)
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Vout = +2dBV
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IPOD
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INPUT
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0.6Vrms (1.70Vpp)
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Main board
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Copyright (c) 2010 Numark
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Numark iDJ3 Specifications

General

Mixer section	Yes
Product color	Black, Silver
Scratcher type	Digital Vinyl System (DVS) scratcher
USB direct playback	-
Built-in optical drive	No
Number of mixer channels	3 channels
Number of scratcher platters	2
Headphone outputs	1
USB connector type	USB Type-B
Apple docking compatibility	iPhone, iPod
Minimum RAM	0.512 GB
Minimum processor	Pentium 4, AMD Athlon XP
Minimum storage drive space	20 MB
Minimum display resolution requirement	1024 x 768 pixels
Cables included	USB
Bundled software	Virtual DJ LE