Numark NK06, Service Manual

Page: 40 / 82

9-79-0476-4-0
NK06AN400A.sch
09/16/2008
AUDIO NOTES
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NUMARK
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DATE: LTR ECO NO: APPROVED:
REVISION RECORD
ASSY NUMBER:
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NK06 ANALOG PCB
9-40-0476-4
C. NICOLLS/JAB/AP
DAC OUTPUT
Vdac=2Vrms
2nd order LPF
Fc = 44.1kHz
K = -3.258
-18.4Vpp
-6.52Vrms
Q=~Butterworth
(Multiple Feedback)
Single Ended
K=-1*2
13.04Vrms
24.5dBu
DRIVER
K=-0.523
3.41Vrms
10.6dBV
DRIVER
K=-0.523
3.41Vrms
10.6dBV
to
Differential
DAC OUTPUT
Vdac=2Vrms
2nd order LPF
Fc = 44.1kHz
K = -3.258
-18.4Vpp
-6.52Vrms
Q=~Butterworth
(Multiple Feedback)
DAC OUTPUT
Vdac=2Vrms
-18.4Vpp
-6.52Vrms
DRIVER
K=-1.69
11.0Vrms
20Vpp + 5dB
(fuclip)
2nd order LPF
Fc = 44.1kHz
K = -3.258
Q=~Butterworth
(Multiple Feedback)
ADC INPUT
Vadc=2Vrms
MIC INPUT
PREAMP
K = 510 (54.1dB)
INVERTING SUM
K = -1.3475
LINE INPUT
TRIM
K = 0-1
EQ
K=1
DC BLOCKING
K = 1
5.66Vpp
2Vrms
CODEC PAGE INPUT PCB (9-40-0478(G)) LINE/XLR
Vmin for FS
Vmax for clip
5.66Vpp
2Vrms
Vmax for clip
none
0.42Vpp
0.15Vrms
Vmin for FS
Vmax for clip
14.1Vpp
5Vrms
-0.566Vpp
-0.2Vrms
Vmin for FS
0.82mVpp
0.29mVrms
Vmin for FS
Vclip
27mVpp
9.8mVrms
PAGE
0.42Vpp
0.15Vrms
Vmin for FS
Vmax for clip
14.1Vpp
5Vrms
With +-12V rails:
5532 Spec Design
MaxOut +-9.2V +11/-10.5V
Expected THD (from 5532) at MaxOut:
0.0006% @ 1kHz
0.0006% @ 20Hz
0.004% @ 20kHz
Rated THD of DAC:
0.0032%
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BUFFER
K=-10
-0.566Vpp
-0.2Vrms
Vmin for FS
Vmax for clip
-0.566Vpp
-0.2Vrms
HP PCB
(9-40-0478(G))