Crown D150 Power Amplifier 电路图.pdf

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1、2 1.2 SPECIFICATIONS 1.2.1 STEREO SPECIFICATIONS Output Power Frequency Response0.1dB DC-20KHz at 1 watt into 8 ohms; 1dB DC-100KHz. 1KHz Power Harmonic Distortion I.M. Distortion (60Hz-7KHz 4:1) Slewing Rate Damping Factor Output Impedance Load Impedance Voltage Gain Input Sensitivity Output Signal

2、 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. 90 watts RMS into 8 ohms, per channel, both channels operating, 0.1% total harmonic distortion. Less t

3、han 0.001% from 20Hz-400Hz, and increasing linearly to 0.05% at 20KHz at 80 watts RMS per channel into 8 ohms. Less than 0.05% from 0.01 watt to 0.25 watts and less than 0.01% from 0.25 watts to 80 watts into 8 ohms, per channel. 6 volts per microsecond (slewing rate is the maximum value of the firs

4、t derivative of the output signal, or the maximum slope of the output signal). Greater than 400, DC-400Hz into 8 ohms. Less than 15 milliohms in series with less than 3 microhenries. Rated for 8 ohm usage; safely drives-any load including completely reactive loads, 20.62% or 26.3.2dB at maximum gain

5、. 1.19 volts 2% for 80 watts into 8 ohms. Unbalanced, dual channel. RadioFans.CN 收音机爱好者资料库 PARTS LIST, D-150A Page 2 Schematic Designation R115, R215 R11 R116, R216 R117, R217 R118, R218 R123, R223 Q2 Description 10K ohm watt 1% Film Crown Part # 2343 820 ohm watt 10% 3301 33K watt 5% 3137 120 ohm

6、watt 5% Film 3837 82 ohm watt 5% Film 3960 5.1K 1 watt 5% 27K watt 5% Film 82 ohm watt 10% 2.2K watt 5% Film 750 ohm watt 5% 15 ohm watt 10% Selected 2808 3970 3300 3145 3803 3614 47 ohm watt 5% 1011 180 ohm watt 10% 2873 5.6 ohm watt 5% 3299 180K watt 10% 2.2K watt 10% 1.5K 2 watt 10% 200K watt 5%

7、91K ohm watt 5% 6.2K watt 5% 2.7K 1 watt 10% 390 ohm watt 10% Semiconductors Selected 2N3859A 2884 1036 3303 3622 3621 3619 1079 2609 2961 2N4125 3625 PN4250A 3786 Other Information RadioFans.CN 收音机爱好者资料库 Schematic Designation Q102,Q202 Q105,Q205 Q107,Q207 Q112,Q212 D1, D2 D106, D206 D102, D202 D3,

8、 D4, D5 D107, 0207 DlOO,D200 DlOl,D201 D103,D203 D104,D204 D105,D205 IC-lA, B IC-lA;B LlOO, L200 L102, L202 Description MPSA93 MPSL01 NSD106 NSD206 1 N4003 IN961B 1OV Zener 3549 IN270 3447 IN4148 3181 PARTS LIST, D-150A Page 3 Crown Part # Other Information 3578 3232 4069 4116 2851 Dual A739PC OP AM

9、P Dual uA749 OP AMP 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 6-32 x 3/8 BHP screw Dual TO-92 cooler 14 pin DIL IC socket Transistor lead PC receptacle OUTPUT INDUCTOR ASSY. 40959 Output coil, torroid form 2850

10、Nylon washer 3609 #16 brown wire 2812 #8 int. star washer 1951 3231* 3643* 3510 9604 3953 9562 1823 1889 2134 3493 3450 3519 *NOTE: R108, 208 are omitted when uA739 is used, and 3.3K when uA749 is used. See R108,208 under resistors. Mounts over Q111, Q211 Fastens 3953 to PC board Used to mount 9562.

11、 Used to mount 9562. Used to mount 9562. Mounted over Q102, Q202. Socket for IC-1. Used to mount R128, R228. One on each side of coil. Used to mount coil RadioFans.CN 收音机爱好者资料库 PARTS LIST, D150A Page 5 Schematic Designation Description C23,C24 DM1 SW1 R12 l0-32 x THP screw #10 internal starwasher 1

12、0-32 hex nuts l-G-2 terminal strip insulator 2-G-l terminal strip D-150A end cover (transformer side) D-150A end cover (PC board side) 9,400 MF 50V Cap 10-32 x THP Screw Panel washer S o l d e r l u g 5/16 Fiber shoulder washer PWL-20 30A bridge 6-32 x .625 BHP screw .#6 internal star washer 6-32 he

13、x nut SPST NC 160F Thermal Switch 390 ohm 2W 5% 6-32 x .625 BHP screw 3879 Q109, Q209 Q113,Q213 QllO, Q210 Q114,Q214 QllO, Q210 Q114, Q214 QllO, 4210 Q114,Q214 #6 internal star washer #6 solder lug 6-32 hex nut Faston flag terminal Faston flag housing Selected 2N3585 TO-66 Insulator TO-66 Mica Washe

14、r Selected T6J0377 (Fairchild) 2N 5631 75V (Motorola) 2N 5631 1OOV (Motorola) Anodized TO-3 insulator Crown Part # Other Information 2049 NICUsed to mount one end of Tl. 2279 Used to mount Tl. 2170 Used to mount Tl. 3599 Mounts over one 2049. 3323 9565-S Mounts 9566-S Mounts 3309 over two transforme

15、r screws. under heat sink screws. 2049 NIC Used to mount C2, C3 2101 Used to mount C2, C3 2934 Used as terminals on C2, C3 3320 Used to mount C2, C3 4131 Earlier units used CPN 3552 3879 Used to mount DM1 1823 Used to mount DM1 1889 CAD Used to mount DM1 2799 4029 May be trimmed with a 1K ohm resist

16、or, CPN 3615. #6 hardware used to mount 2799 and 9562 PC board mount bracket. 1823 3163 1889 CAD 3298 Used on DM1, C2, C3, thermal switch. 3297 Used on DM1, C2, C3, thermal switch. 3295 Driver transistors. 4113 Used to mount drivers. 2553 Used to mount drivers. 3941 Output transistors. 3991 Output transistors. 3990 Output transistors. 4039 Used to mount outputs.