Crown_D-60_Service_Manual电路图.pdf

-. _ . 2 1.2 SPECIFICATIONS 1.2.1 STEREO SPECIFICATIONS Output Power Frequency Response . 1 Rower Harmoni cd Distortion ? I.M. Distortion (60Hz-7KH z 4:l) Slewing Rate Damping Factor Output Impedance Load Impedance Voltage Gain Input Sensitivtty Output Signal 28 watts per channel minimum RMS (both channels oper- ating) into an 8 ohm load over a bandwidth of 20Hz-20KHz at a rated RMS sum total harmonic distortion of 0.05% of the fun- damental output voltage. 0. 1dB 20Hz-20KHz at 1 watt into 8 ohms; 1.2d bB 5Hz-100KH z at 1 watt into 8 ohms. 35 watts RMS into 8 ohms, per channel, both channels operating, 0.1% total harmonic distortion. *Les s than 0.001% from 20Hz-400Hz , and increasing linearly to 0.05% at 20KHz at 28 watts RMS per channel into 8 ohms. Less than 0.05% from 0.01 watts to 0.25 watts, and less than 0.01% from 0.25 watts to 28 watts into 8 ohms per channel. 6 volts per microsecond (slewing rate is the maximum valueofthefirstderivativeofthe 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 .0.2 dbB at maximum gain. 0.75 volts 2% for 28 watts in to o 8 ohms. Unbalanced, dual channel. RadioFans.CN 收音机爱 好者资料库 PARTS LIST, D-60 Page 2 Schematic Designation R115, R215 R116, R216 R117, R217 R119, R219 R125, R225 R120, R220 R127, R227 R121, R221 R122, R222 R123, R223 R126, R226 R132, R232 *R135, R235 *R135, R235 R5 R13 4102, Q202 Q104, Q204 QlO5, Q205 Q106, Q206 Q114, Q214 4107, Q207 Q108, Q208 QlO9, Q209 QllO, Q210 Q112, Q212 DlOl, D201 D102, 0202 D106. D206 D103, D203 D104, 0204 D105, D205 D7, D8 Description 4.7K ohm watt 10% Crown Part # 1640 18K ohm watt 10% 2633 180 ohm watt 10% 2873 5.6 ohm watt 5% 3299 120 ohm watt 5% Film 3837 100 ohms watt 10% 1007 2.2K ohm 750 ohm 1 3.3K watt 10% 2629 10K ohm watt 10% 2631 1.5K ohm 1 watt 10% Transistors PN4250A 2N3859A selected 3497 3786 2961 2N4125 selected 3625 M PSA06 3528 M PSA56 3954 2N6175 3501 Diodes 1N4148 3181 1 N270 3447 1 N4003 2851 lN961B, 1OV zener 3549 Other Information When IC u749 is used, must be connected from pins 1 to 7 and 7 to 13 on IC When IC u739 is used and in- stability occurs, resistor must be connected from pins 1 to 7 and 7 to 13 on IC RadioFans.CN 收音机爱 好者资料库 . PARTS LIST, D-60 Page 5 Schematic Designation Description Crown Part # C21 I1 SW1 R31 R33 R201 R128, R228 R130, R230 Q111, Q211 4113, Q213 Tl Cl25 C123, C223 3” foam tape 1152 6-32 captive nut 2019 Anodized TO-3 insulator TO-3 insulator 6-32 x BHP screw #6 internal star washer #6 solder lug 6-32 hex nut Feed-through terminals 5MF 70V Neon lamp, NE2H D-60 power rotary switch 27K ohm watt 10% 2.7 ohm watt 10% 4039 4071 2176 1823 3163 1889 3502 1678 2500 3492 1056 2857 25K ohm audio taper pot .l ohm 5 watt 10% Wire 3494 3291 2N3055 selected, Motorola 4152 D-60 transformer, 10403-P2 4246 Nylon transformer mount 4251 8-32 x g RHP screw 4252 Fuseblock 3776 Double-sided foam tape 1152 2.5A 3AG fuse 3775 Fuse Caution label 3834 Control knob, A-l 4076 Control knob, A 4075 D-60 serial number label 4193 *2A 120 VAC* label 3891 13/” end bars 4085 6-32 x 3/ SCP screw 1904 D-60 bottom cover 41166 O-60 bottom cover 9590-s 8-32 captive nuts 2018 .01 MF Ceramic disc 1751 Other Information Mounts Tl to front panel Mount on bottom back edge of FP channel Mounts outputs Mounts outputs Mounts outputs Mounts outputs Mounts outputs Mounts outputs Mounts on terminal strip Mounts on terminal strip Mounts from gnd lug at input pot to main board Input level control with nut Mount on solder lugs attached to outputs Output transistors on bottom of FP channel Starts SN 14467 Mounts transformer Mounts transformer Used to mount fuseblock Internal fuse For input pots RlOl, R201 For power switch SW 1 Mounts end bars With 2, 8-32 captive nuts Without the captive nuts Install on bottom cover RadioFans.CN 收音机爱 好者资料库