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GUI/SW2/SRC/sch/audio/pioneer-a6-amp-input.sch 11.4 KB
v 20150930 2
C 40000 40000 0 0 0 title-A3.sym
C 49600 49600 1 180 0 pnp-2.sym
{
T 49000 49200 5 10 0 0 180 0 1
device=PNP_TRANSISTOR
T 49100 49300 5 10 1 1 180 0 1
refdes=Q404
T 49300 49000 5 10 1 1 0 6 1
value=2SA750
}
C 53000 47500 1 180 1 pnp-2.sym
{
T 53600 47100 5 10 0 0 180 6 1
device=PNP_TRANSISTOR
T 53500 47200 5 10 1 1 180 6 1
refdes=Q406
T 53300 46900 5 10 1 1 0 0 1
value=2SA1015
}
C 50400 46900 1 0 0 npn-2.sym
{
T 51000 47400 5 10 0 0 0 0 1
device=NPN_TRANSISTOR
T 50900 47500 5 10 1 1 0 0 1
refdes=Q402b
T 50700 47300 5 10 1 1 0 0 1
value=2SC2291
}
C 54000 47500 1 0 1 npn-2.sym
{
T 53400 48000 5 10 0 0 0 6 1
device=NPN_TRANSISTOR
T 53500 48200 5 10 1 1 180 0 1
refdes=Q408
T 53700 47900 5 10 1 1 0 6 1
value=2SC1815
}
C 46600 44600 1 90 0 voltage-1.sym
{
T 46100 44700 5 10 0 0 90 0 1
device=VOLTAGE_SOURCE
T 45900 45000 5 10 1 1 180 8 1
refdes=Vin
T 46600 44600 5 10 0 0 0 0 1
value=AC 0 DC 0
}
N 49000 51000 56000 51000 4
C 55100 43400 1 90 0 zener-1.sym
{
T 54500 43800 5 10 0 0 90 0 1
device=ZENER_DIODE
T 54100 43700 5 10 1 1 0 0 1
refdes=DZ701
T 54000 43500 5 10 1 1 0 0 1
value=EQA0135
T 55100 43400 5 10 0 0 270 0 1
comment=36V Zener
}
C 51100 51000 1 90 1 diode-1.sym
{
T 50500 50600 5 10 0 0 270 2 1
device=DIODE
T 51600 50400 5 10 1 1 0 6 1
refdes=D402
T 51600 50200 5 10 1 1 0 6 1
value=1S2473
}
C 53400 50000 1 270 0 resistor-2.sym
{
T 53750 49600 5 10 0 0 90 8 1
device=RESISTOR
T 54100 49600 5 10 1 1 0 6 1
refdes=R414
T 54000 49400 5 10 1 1 0 6 1
value=300
}
C 54400 50300 1 270 0 resistor-2.sym
{
T 54750 49900 5 10 0 0 270 0 1
device=RESISTOR
T 54700 50000 5 10 1 1 180 6 1
refdes=R416
T 54700 49700 5 10 1 1 0 0 1
value=18k
}
N 53500 50900 53500 51000 4
C 54800 48900 1 180 1 capacitor-4.sym
{
T 55000 47800 5 10 0 0 0 2 1
device=POLARIZED_CAPACITOR
T 54600 48900 5 10 1 1 180 6 1
refdes=C408
T 55000 48200 5 10 0 0 0 2 1
symversion=0.1
T 55500 48900 5 10 1 1 180 6 1
value=47u
}
N 53500 46500 53500 45700 4
N 54000 48000 54800 48000 4
N 54500 48000 54500 49400 4
N 53400 48700 54500 48700 4
N 53500 48500 53500 49100 4
N 54500 50300 54500 51000 4
N 56000 44300 56000 49400 4
N 55700 48000 56000 48000 4
N 56000 50300 56000 51000 4
N 54500 48700 54800 48700 4
N 55700 48700 56000 48700 4
N 52400 46300 52400 48700 4
N 52400 48700 52500 48700 4
C 50800 50100 1 270 0 resistor-2.sym
{
T 51150 49700 5 10 0 0 270 0 1
device=RESISTOR
T 51100 49800 5 10 1 1 180 6 1
refdes=R410
T 51100 49500 5 10 1 1 0 0 1
value=2.2K
}
N 46400 44300 53500 44300 4
C 49300 44300 1 90 0 capacitor-1.sym
{
T 48600 44500 5 10 0 0 90 0 1
device=CAPACITOR
T 49200 44900 5 10 1 1 0 0 1
refdes=C402
T 48400 44500 5 10 0 0 90 0 1
symversion=0.1
T 49200 44500 5 10 1 1 0 0 1
value=560p
}
N 49100 48300 52400 48300 4
N 53400 46300 53500 46300 4
C 48600 45600 1 0 0 spice-njfet-1.sym
{
T 49400 46000 5 10 0 0 0 0 1
device=FET_TRANSISTOR
T 48800 46200 5 10 1 1 0 6 1
refdes=J426a
T 48800 46000 5 10 1 1 0 6 1
value=2SK129
}
C 51400 45600 1 0 1 spice-njfet-1.sym
{
T 50600 46000 5 10 0 0 0 6 1
device=FET_TRANSISTOR
T 51200 46200 5 10 1 1 0 0 1
refdes=J426b
T 51200 46000 5 10 1 1 0 0 1
value=2SK129
}
C 49600 46900 1 0 1 npn-2.sym
{
T 49000 47400 5 10 0 0 0 6 1
device=NPN_TRANSISTOR
T 49100 47500 5 10 1 1 0 6 1
refdes=Q402a
T 49300 47300 5 10 1 1 0 6 1
value=2SC2291
}
C 52500 48500 1 0 0 diode-1.sym
{
T 52900 49100 5 10 0 0 0 0 1
device=DIODE
T 52700 49200 5 10 1 1 0 0 1
refdes=D420
T 52600 49000 5 10 1 1 0 0 1
value=1S2473
}
C 49200 50700 1 90 1 resistor-2.sym
{
T 48850 50300 5 10 0 0 270 2 1
device=RESISTOR
T 48900 50400 5 10 1 1 180 0 1
refdes=R408
T 48900 50100 5 10 1 1 0 6 1
value=2.2k
}
C 50100 45800 1 90 0 resistor-2.sym
{
T 49750 46200 5 10 0 0 90 0 1
device=RESISTOR
T 50200 46400 5 10 1 1 180 6 1
refdes=R406
T 50200 46100 5 10 1 1 0 0 1
value=33k
}
C 47800 44500 1 90 0 resistor-2.sym
{
T 47450 44900 5 10 0 0 90 0 1
device=RESISTOR
T 47500 45100 5 10 1 1 180 0 1
refdes=R472
T 47500 44800 5 10 1 1 0 6 1
value=10k
}
C 50100 49400 1 90 0 resistor-2.sym
{
T 49750 49800 5 10 0 0 90 0 1
device=RESISTOR
T 50200 50000 5 10 1 1 180 6 1
refdes=R452
T 50200 49700 5 10 1 1 0 0 1
value=220k
}
N 49100 48600 49100 47900 4
N 50900 47900 50900 49200 4
N 49600 49100 50900 49100 4
N 49600 47400 50400 47400 4
N 50000 49400 50000 47400 4
N 49100 50700 49100 51000 4
N 49100 49600 49100 49800 4
N 50000 50300 50000 51000 4
N 50900 46900 50900 46300 4
N 49100 46900 49100 46300 4
N 48600 45800 47500 45800 4
N 49100 45600 50900 45600 4
N 50000 47400 50000 46700 4
N 50000 45800 50000 45600 4
N 50000 45600 50000 44100 4
N 50000 43100 50000 43200 4
N 48600 45200 48600 45800 4
N 48600 45300 49100 45300 4
N 49100 45300 49100 45200 4
C 48700 44300 1 90 0 resistor-2.sym
{
T 48350 44700 5 10 0 0 90 0 1
device=RESISTOR
T 48400 45000 5 10 1 1 180 0 1
refdes=R404
T 48400 44700 5 10 1 1 0 6 1
value=100k
}
N 49100 46600 47700 46600 4
N 47700 46600 47700 45400 4
N 47700 44500 47700 44300 4
N 46600 45800 46400 45800 4
C 47500 45900 1 180 0 resistor-2.sym
{
T 47100 45550 5 10 0 0 180 0 1
device=RESISTOR
T 46800 46000 5 10 1 1 0 0 1
refdes=R402
T 46900 45500 5 10 1 1 0 0 1
value=1k
}
N 52100 46600 50900 46600 4
N 53500 44800 53500 44300 4
C 51500 44500 1 90 0 resistor-2.sym
{
T 51150 44900 5 10 0 0 90 0 1
device=RESISTOR
T 51200 45100 5 10 1 1 180 0 1
refdes=R420
T 51200 44800 5 10 1 1 0 6 1
value=2.4k
}
N 51400 45800 51400 45400 4
N 51400 44500 51400 44300 4
N 46400 45800 46400 45500 4
N 46400 44600 46400 44300 4
C 55100 42000 1 180 0 vee-1.sym
C 48000 41950 1 0 0 vdc-1.sym
{
T 48700 42500 5 10 0 1 0 0 1
refdes=Vcc
T 47900 42500 5 10 1 1 0 6 1
value=DC +49V
}
C 48000 41850 1 180 1 vdc-1.sym
{
T 47600 41350 5 10 0 1 180 6 1
refdes=Vee
T 47900 41200 5 10 1 1 0 6 1
value=DC -49V
}
C 47725 41650 1 0 0 gnd-1.sym
{
T 47725 41650 5 10 0 0 0 0 1
netname=GND
}
C 48500 40650 1 180 0 vee-1.sym
{
T 48500 40650 5 10 0 0 0 0 1
netname=Vee
}
C 48100 43150 1 0 0 vcc-1.sym
{
T 48100 43150 5 10 0 0 0 0 1
netname=Vcc
}
N 48300 41950 48300 41850 4
N 48300 41950 47825 41950 4
C 55000 42900 1 90 1 resistor-2.sym
{
T 54650 42500 5 10 0 0 270 2 1
device=RESISTOR
T 55100 42600 5 10 1 1 180 6 1
refdes=R707
T 55100 42300 5 10 1 1 0 0 1
value=4.0k
}
C 55800 50300 1 270 0 capacitor-4.sym
{
T 56900 50100 5 10 0 0 270 0 1
device=POLARIZED_CAPACITOR
T 55500 50100 5 10 1 1 0 0 1
refdes=C414
T 56500 50100 5 10 0 0 270 0 1
symversion=0.1
T 55500 49500 5 10 1 1 0 0 1
value=330u
}
N 52400 46300 52500 46300 4
T 50000 41000 9 18 1 0 0 0 1
Pioneer A6 Integrated Audio Amplifier
T 49500 40400 9 11 1 0 0 0 1
pioneer-a6-amp-input.sch
T 50300 40100 9 11 1 0 0 0 1
1
T 51200 40100 9 11 1 0 0 0 1
1
T 53400 40400 9 11 1 0 0 0 1
2016 - 07 - 07
T 53400 40100 9 11 1 0 0 0 1
M S Waters
C 40300 42900 1 0 0 spice-model-1.sym
{
T 40400 43600 5 10 0 1 0 0 1
device=model
T 40400 43500 5 10 1 1 0 0 1
refdes=A1
T 41600 43200 5 10 1 1 0 0 1
model-name=2SK129
T 40800 43000 5 10 1 1 0 0 1
file=../../lib/models/2sk129.mod
}
C 40300 42000 1 0 0 spice-model-1.sym
{
T 40400 42700 5 10 0 1 0 0 1
device=model
T 40400 42600 5 10 1 1 0 0 1
refdes=A2
T 41600 42300 5 10 1 1 0 0 1
model-name=2SC2291
T 40800 42100 5 10 1 1 0 0 1
file=../../lib/models/2sc2291.mod
}
C 40300 41100 1 0 0 spice-model-1.sym
{
T 40400 41800 5 10 0 1 0 0 1
device=model
T 40400 41700 5 10 1 1 0 0 1
refdes=A3
T 41600 41400 5 10 1 1 0 0 1
model-name=2SA750
T 40800 41200 5 10 1 1 0 0 1
file=../../lib/models/2sa750.mod
}
C 40300 40200 1 0 0 spice-model-1.sym
{
T 40400 40900 5 10 0 1 0 0 1
device=model
T 40400 40800 5 10 1 1 0 0 1
refdes=A4
T 42000 40500 5 10 1 1 0 0 1
model-name=2SC1815
T 40800 40300 5 10 1 1 0 0 1
file=../../lib/models/2sc1815.mod
}
C 43500 40200 1 0 0 spice-model-1.sym
{
T 43600 40900 5 10 0 1 0 0 1
device=model
T 43600 40800 5 10 1 1 0 0 1
refdes=A5
T 44800 40500 5 10 1 1 0 0 1
model-name=2SA1015
T 44000 40300 5 10 1 1 0 0 1
file=../../lib/models/2sa1015.mod
}
C 43500 41100 1 0 0 spice-model-1.sym
{
T 43600 41800 5 10 0 1 0 0 1
device=model
T 43600 41700 5 10 1 1 0 0 1
refdes=A17
T 44800 41400 5 10 1 1 0 0 1
model-name=EQU0135
T 44000 41200 5 10 1 1 0 0 1
file=../../lib/models/eqa0135.mod
}
C 43500 42900 1 0 0 spice-model-1.sym
{
T 43600 43600 5 10 0 1 0 0 1
device=model
T 43600 43500 5 10 1 1 0 0 1
refdes=A14
T 44800 43200 5 10 1 1 0 0 1
model-name=MZ100
T 44000 43000 5 10 1 1 0 0 1
file=../../lib/models/mz100.mod
}
T 40300 50400 9 10 1 0 180 6 3
J426 is a temperature coupled pair of 2SK129 JFETs for which specs. aren't available.
It seems that the uPA68H is similar so it's data sheet has been used to create the
SPICE model.
T 51400 40700 9 12 1 0 0 0 1
Power Amplifier Input Stage
C 55700 48200 1 180 0 zener-1.sym
{
T 55300 47600 5 10 0 0 180 0 1
device=ZENER_DIODE
T 55000 47600 5 10 1 1 0 0 1
refdes=DZ404
T 55000 47400 5 10 1 1 0 0 1
value=MZ100
}
C 53400 45700 1 270 0 resistor-2.sym
{
T 53750 45300 5 10 0 0 270 0 1
device=RESISTOR
T 53700 45400 5 10 1 1 180 6 1
refdes=R446
T 53700 45100 5 10 1 1 0 0 1
value=2.2k
}
C 55800 44300 1 270 0 capacitor-4.sym
{
T 56900 44100 5 10 0 0 270 0 1
device=POLARIZED_CAPACITOR
T 55900 44200 5 10 1 1 180 0 1
refdes=C708
T 56500 44100 5 10 0 0 270 0 1
symversion=0.1
T 55900 43500 5 10 1 1 0 6 1
value=100u
}
C 43500 42000 1 0 0 spice-model-1.sym
{
T 43600 42700 5 10 0 1 0 0 1
device=model
T 43600 42600 5 10 1 1 0 0 1
refdes=A16
T 44800 42300 5 10 1 1 0 0 1
model-name=1S2473
T 44000 42100 5 10 1 1 0 0 1
file=../../lib/models/1s2473.mod
}
N 54900 44600 56000 44600 4
N 54900 44600 54900 44300 4
N 54900 43400 54900 42900 4
N 56000 43400 56000 43100 4
C 49900 44100 1 270 0 resistor-2.sym
{
T 50250 43700 5 10 0 0 270 0 1
device=RESISTOR
T 49800 43800 5 10 1 1 180 0 1
refdes=R450
T 49800 43500 5 10 1 1 0 6 1
value=22k
}
N 56000 43100 54900 43100 4
N 54900 43100 50000 43100 4
T 51700 47900 9 10 1 0 0 6 1
N1:45.6V
T 50300 43200 9 10 1 0 0 0 1
N12:-34.4V
T 54100 47800 9 10 1 0 0 0 1
N8:11.2V
T 50100 45400 9 10 1 0 0 0 1
N17:0.46V
T 48400 47900 9 10 1 0 0 0 1
N2:9.8V
T 48300 46900 9 10 1 0 0 0 1
N16:5.9V
T 51600 46900 9 10 1 0 0 6 1
N7:5.9V
C 52500 46100 1 0 0 capacitor-1.sym
{
T 52700 46800 5 10 0 0 0 0 1
device=CAPACITOR
T 52400 46100 5 10 1 1 0 0 1
refdes=C404
T 52700 47000 5 10 0 0 0 0 1
symversion=0.1
T 53100 46100 5 10 1 1 0 0 1
value=39p
}
C 53400 50900 1 270 0 resistor-2.sym
{
T 53750 50500 5 10 0 0 270 0 1
device=RESISTOR
T 54100 50600 5 10 1 1 180 0 1
refdes=R418
T 53700 50300 5 10 1 1 0 0 1
value=22
}
C 47600 51000 1 0 0 vcc-1.sym
C 48200 44000 1 0 0 gnd-1.sym
N 53000 47000 52400 47000 4
C 52000 45400 1 270 0 resistor-2.sym
{
T 52350 45000 5 10 0 0 270 0 1
device=RESISTOR
T 52300 45100 5 10 1 1 180 6 1
refdes=R470
T 52300 44800 5 10 1 1 0 0 1
value=10k
}
N 52100 45400 52100 46600 4
N 52100 44500 52100 44300 4
T 40300 49500 9 10 1 0 180 6 2
R707 is actually 2.2k but current is drawn thro. it by both L & R channels. Only one
channel is simulated here so it's value has been adjusted to compensate.
T 53600 45800 9 10 1 0 0 0 1
N4:10.4V
T 53600 49000 9 10 1 0 0 0 1
N9:47.5V
T 40300 50700 9 10 1 0 0 0 3
The input range 5.0mV to 8.5mV corresponds to an output range (across R414) of 
1.4V to 0V. The effective (usable) output range is 1.4V to 0.7V corresponding to the
input range 4.4mV to 6.6mV.
C 55400 46000 1 0 0 gnd-1.sym
N 55500 46300 56000 46300 4
C 49000 50900 1 0 1 resistor-2.sym
{
T 48600 51250 5 10 0 0 0 6 1
device=RESISTOR
T 48300 51200 5 10 1 1 0 0 1
refdes=R460
T 48400 50700 5 10 1 1 0 0 1
value=100
}
C 52500 50900 1 90 1 capacitor-4.sym
{
T 51400 50700 5 10 0 0 270 2 1
device=POLARIZED_CAPACITOR
T 51800 50700 5 10 0 0 270 2 1
symversion=0.1
T 52600 50600 5 10 1 1 180 6 1
refdes=C302
T 52600 50300 5 10 1 1 0 0 1
value=1u
}
C 52200 49700 1 0 0 gnd-1.sym
N 52300 50900 52300 51000 4
N 48100 51000 47800 51000 4