HarmanKardon-AVR4550-avr-sm维修电路原理图.pdf
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HarmanKardon-AVR4550-avr-sm维修电路原理图.pdf
AVR 4550Audio/VideoReceiverSERVICE MANUALAVR 4550readyLOGIC 7VMAxPower for the Digital RevolutionRadioFans.CN 收音机爱 好者资料库Technical SpecificationsAudio SectionStereo Mode Continuous Average Power (FTC)65 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms5/7 Channel Surround Modes Power Per Individual ChannelFront L&R channels:50 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:50 Watts, 0.07% THD, 20Hz20kHz into 8 ohmsSurround (L & R Side, L & R Back) channels:50 Watts per channel, use RV71, set P401 as 23mV +2mV/- 1mV. Surr Left use RV73 then set P303 as 23mV +2mv/-1mV. Front Right use RV72 make P402 to 23mV +2mV/-1mV. Surr Right use RV73 then make P303 to 23mV +2mV/-1mV.P401 FRONT L-CHP303 SURROUND L-CHRV71 FRONT L-CHRV73 SURROUND L-CHP402 FRONT R-CHP304 SURROUND R-CHRV72 FRONT R-CHRV74 SURROUND R-CH2. BACK SURROUND BD : 5 Min. After power on, please set up Bias as below, SBL use VR31 then set P301 as 23mV +2mv/-1mV. Center use VR41 make P401 to 23mV +2mV/-1mV. SBR use VR51 then make P501 to 25mV +2mV/-1mV.P301 VR31 BACK SURROUND L-CHP401 VR41 CENTER-CHP501 VR51 BACK SURROUND R-CHavr525_FRONT-MP.sch-1 - Tue Oct 01 12:06:27 2002avr525_VIDEO_MP.sch-1 - Tue Oct 01 12:04:43 2002