HarmanKardon-HK1400-int-维修说明书手册含电器原理图2

HK1200/HK1400SPECIFICATIONSNominalLimitNominalLimitRMS Output Power8 1kHz THD 0.1%33.5W 2 25W(Model HK1200)Channel Separation48.4W240W(Model:HK1400】(at 10kHz)65 dB 2 55 dB4 Q,1kHz THD 0.3%49W40W (Model:HK1200)IM Distortion Ratio (at 1W)0.065%≤0.1%(Model:HK1200)75.4W≥60Wode÷HK1400】0.052%≤0.1%(Model:HK1400)High-instantaneous CurrentDamping Factor (at 1Hz)55.7245(Model HK1200Capability(HCC)37A 30A (Model:HK1200)84.5275(Model HK1400)43.5A 2 35A (Model HK1400)DC Output Voltage (at 42)Half Power BandwidthL channel0mV±60mVTHD0.1%)<10Hz-100kHz <10Hz-70kHzR channel0mv±0mVFrequency Responseldling Current (at 80)75mA75mA±5mA(at-3dB down)0.1H2-420kHzc1H位.≥350kHz(Model HK1200)Dimensions17.4"×4.1"×13.70.1Hz-410kHz<1h-≥350kH(Wx Hx D)(443×105×347mm】(Model HK1400)Weight18.3 Ibs./8.3 kg (Model HK1200)Input Sensitivity15.0 lbs./6.8 kg (Model HK1400)《at25 W output)Normal:135mV>135mV±25mV/39k0士5k2(Model HK1200)Power Supplies(at 25W output)-10dB:440mV>440mV±25mV/39k2±5k2North America area modelAC120V,60 Hz(Model HK1200)International and(at 40W output)Normal:135mV>135mV±25mV/39k2±5knAsia/Oceania modelsAC230/240V,50/60Hz(Model HK1400)Power Consumption110W (Model:HK1200)(at 40W output)-10dB:442mV>≥442mV±25mV/39kQ±5k2130W (Model HK1200)D(Model HK1400)140W (Model HK1400)Signal to Noise Ratio100dB290dB(Model:HK1200)160W (Model HK1400)98.5dB 90dB(Model:HK1400)These specifications are service target specs.nents are subjoct to change without noticeLEAKAGE TEST (FOR SERVICE ENGINEERS IN THE U.S.A)Before returning the unit to the user,perform the following safety checks:1.Inspect all lead dress to make cer-tain that leads are not pinched orthat hardware is not lodged be-tween the chassis and other metalparts in the unit.2.Be sure that any protective de-SIMPSON MODEL 229 ETC.FORLEAKAGE TESTvices such as nonmetallic controlknobs,insulating fishpapers,TO EACH EXPOSEDTO AC GROUND SUCHcabinet backs,adjustment andMETAL SURFACE OFAS WATER PIPE BX CABLEcompartment covers or shieldsUNIT UNDER TESTHIGHGROUNDCONDUIT.ETC.VOLTAGEisolation resistor-capacity net-OR +LEADLEADworks,mechanical insulators,etc.which were removed for servicingare properly reinstalled.3.Be sure that no shock hazard exists;check for leak-age current using Simpson Model 229 LeakageVTVMTester,standard equipment item No.21641,RCAO AC SCALEOModel WT540A or use alternate method as follows:Plug the power cord directly into a 120-volt AC1.5knreceptacle (do not use an Isolation Transformer for10wthis test).Using two clip leads,connect a 1500 Ohm,10-watt resistor paralleled by a 0.15 uF capacitor,inseries with all exposed metal cabinet parts and aknown earth ground,such as a water pipe or con-duit.Use a VTVM or VOM with 1000 Ohms per volt,0.15uFor higher sensitivity to measure the AC voltage dropacross the resistor.(See Diagram.)Move the resis-TEST PROBEtor connection to each exposed metal part having areturn path to the chassis (antenna,metal,cabinet,screw heads,knobs and control shafts,escutcheon,TO EXPOSEDCONNECT TO KNOWNet