Crown D-150, D-150-A Schematic
2
1.2 SPECIFICATIONS
1.2.1 STEREO SPECIFICATIONS
Output Power
Frequency Response
1KHz
Power
Harmonic Distortion
I.M. Distortion
(60Hz-7KHz
Slewing Rate
Damping Factor
Output Impedance
Load Impedance
Voltage Gain
4:1)
80 watts per channel minimum RMS (both channels
operating) into an 8 ohm load over a bandwidth of 1Hz-20KHz
at a rated RMS sum total harmonic distortion of 0.05% of the
fundamental output voltage.
±0.1dB DC-20KHz at 1 watt into 8 ohms;
90 watts RMS into 8 ohms, per channel, both channels operating, 0.1% total harmonic
distortion.
Less than 0.001% from
watts RMS per channel into 8 ohms.
Less than 0.05% from 0.01 watt to 0.25 watts and less than
watts into 8 ohms, per channel.
6 volts per microsecond (slewing rate is the maximum
output signal, or the maximum slope of the output signal).
Greater than 400,
Less than 15 milliohms in series with less than 3 microhenries.
Rated for 8 ohm usage; safely drives-any load including completely reactive loads,
20.6±2%
or
26.3±.2dB
20Hz-400Hz,
DC-400Hz
into 8 ohms.
at maximum gain.
±1dB DC-100KHz.
and increasing linearly to 0.05% at
0.01%
value of
the
from
0.25
first
derivative
20KHz
watts to
at
80
of the
80
Input
Sensitivity
Output Signal
1.19 volts
Unbalanced, dual channel.
±2%
for 80 watts into 8 ohms.
PARTS LIST, D-150A Page 2
Schematic
Designation
R115, R215
R11
R116, R216
R117, R217
R118, R218
R123, R223
Description
10K
ohm ½ watt 1% Film
820 ohm ¼ watt 10%
33K ½ watt 5%
120 ohm ½ watt 5% Film
82 ohm ¼ watt 5% Film
5.1K
1 watt 5%
27K
½
watt 5% Film
82 ohm
2.2K ½
750 ohm
15 ohm
Selected
¼
watt 10%
watt 5% Film
¼
watt 5%
¼
watt 10%
Crown
Part
#
2343
3301
3137
3837
3960
2808
3970
3300
3145
3803
3614
Other Information
47 ohm ¼ watt 5%
180 ohm ¼ watt 10%
½
5.6 ohm
180K
2.2K
1.5K
200K
91K
6.2K ¼
2.7K
390 ohm
Semiconductors
Selected
watt 5%
¼
watt 10%
½ watt 10%
2 watt 10%
¼
watt 5%
ohm ¼ watt 5%
watt 5%
1 watt 10%
½
watt 10%
2N3859A
1011
2873
3299
2884
1’036
3303
3622
3621
3619
1079
2609
2961
Q2
2N4125
PN4250A
3625
3786
PARTS LIST,
D-150A Page 3
Schematic
Designation
Q102,Q202
Q105,Q205
Q107,Q207
Q112,Q212
D1, D2
D106, D206
D102, D202
D4,
D3,
D107, 0207
D5
DlOO,D200
DlOl,D201
D103,D203
D104,D204
D105,D205
IC-lA,
B
IC-lA;B
Description
MPSA93
MPSL01
NSD106
NSD206
1
N4003
IN961B 1OV
IN270
IN4148
Dual
µA739PC OP
Dual uA749 OP AMP
Zener
AMP
Crown
Part #
3578
3232
4069
4116
2851
3549
3447
3181
3231*
3643*
*NOTE: R108, 208 are omitted
Other Information
when uA739 is used, and
when uA749 is used. See R108,208
under resistors.
3.3K
LlOO,
L200
L102, L202
Miscellaneous
.5
MH axial lead choke
Main PC board
TO-92 D-clip
D-150A PC board mount bracket
#6 internal star washer
6-32 Hex nut
3/8
6-32 x
Dual TO-92 cooler
14 pin DIL IC socket
Transistor lead PC receptacle
OUTPUT INDUCTOR ASSY.
Output coil, torroid form 2850
Nylon washer 3609
#16 brown wire
BHP screw
3510
9604
3953
9562
1823
1889
2134
3493
3450
3519
40959
2812
Mounts over
Fastens 3953 to PC board
Used to mount 9562.
Used to mount 9562.
Used to mount 9562.
Mounted over Q102, Q202.
Socket for
Used to mount R128, R228.
One on each side of coil.
Q111, Q211
IC-1.
#8
int. star washer
1951
Used to mount coil
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