HarmanKardon-AVR3550-avr-sm维修电路原理图.pdf
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1、AVR 3550 Audio/VideoReceiverService ManualAVR 3550Power 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 ohmsFive-Channel Surround Modes Power Per In
2、dividual ChannelFront L&R channels:55 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:55 Watts, 0.07% THD, 20Hz20kHz into 8 ohmsSurround channels:55 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsInput Sensitivity/Impedance Linear (High Level)200mV/47kohmsSignal-to-Noise Ratio
3、(IHF-A)95dBSurround System Adjacent Channel Separation Analog Decoding 40dB (Pro Logic II, etc.) Dolby Digital (AC-3) 55dB DTS55dBFrequency Response 1W (+0dB, 3dB)10Hz100kHzHigh Instantaneous Current Capability (HCC)28 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableRise Time16secSlew Rate
4、40V/secFM Tuner SectionFrequency Range87.5108MHzUsable SensitivityIHF 1.3 V/13.2dBfSignal-to-Noise RatioMono/Stereo: 70/65dB (DIN)DistortionMono/Stereo: 0.15/0.3%Stereo Separation35dB 1kHzSelectivity300kHz: 65dBImage Rejection80dBIF Rejection90dBAM Tuner SectionFrequency Range5221620kHzSignal-to-Noi
5、se Ratio45dBUsable SensitivityLoop: 500VDistortion1kHz, 50% Mod: 0.8%Selectivity9kHz: 30dBVideo SectionVideo FormatPAL/NTSCInput Level/Impedance1Vp-p/75 ohmsOutput Level/Impedance 1Vp-p/75 ohmsVideo Frequency Response10Hz8MHz (3dB)GeneralPower RequirementAC 220-240V/50HzPower Consumption72W idle, 58
6、0W maximum (2 channels driven)Dimensions (Max)Width 440mm Height 168mm Depth390mm Weight12.0 kgDepth measurement includes knobs, buttons and terminal connections.Height measurement includes feet and chassis.All features and specifications are subject to change without notice.Harman Kardon is a regis
7、tered trademark, and Power for the digital revolution is atrademark, of Harman International Industries, Inc.is a trademark of Harman International Industries,Inc.(Patent No.5,386,478).*Manufactured under license from Dolby Laboratories.“Dolby”,“Pro Logic” and the Double-D symbol are registeredtrade
8、marks of Dolby Laboratories. Confidential Unpublished Works. 19921999 Dolby Laboratories, Inc.All rights reserved.“DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc. UltraStereo is a registered trademark of UltraStereo Corp.VMAx is a trademark of Harman Intern
9、ational Industries, Inc., and is an implementation of Cooper Bauck Transaural Stereo under patent license.Logic 7 is a registered trademark of Lexicon, Inc.Crystal is a registered trademark of Cirrus Logic Corp.TMRadioFans.CN 收音机爱 好者资料库48TROUBLESHOOTING GUIDETROUBLESHOOTINGSYMPTOMCAUSESOLUTIONUnit d
10、oes not function when Main No AC Power Make certain AC power cord is plugged into a live outletPower Switch is pushed Check to see whether outlet is switch-controlledDisplay lights, but no sound Intermittent input connections Make certain that all input and speaker connections are secureor picture M
11、ute is on Press Mute button Volume control is down Turn up volume controlUnit turns on, but front-panel Display brightness is turned off Follow the instructions in the Display Brightness section display does not light upon page 30 so that the display is set to VFD FULLNo sound from any speaker; Ampl
12、ifier is in protection mode Check speaker wire connections for shorts at receiver and light around power switch is reddue to possible shortspeaker ends Amplifier is in protection mode Contact your local Harman Kardon service center, which you candue to internal problemslocate by visiting our Web sit
13、e at No sound from surround or Incorrect surround mode Select a mode other than Stereo or Dolby 3 Stereocenter speakers Input is monaural There is no surround information from mono sources Incorrect configuration Check speaker mode configuratioin Stereo or Mono program material The surround decoder
14、may not create center- or rear-channel information from nonencoded programsUnit does not respond to Weak batteries in remote Change remote batteriesremote commands Wrong device selected Press the AVR selector Remote sensor is obscured Make certain front-panel sensor is visible to remoteor connect re
15、mote sensorIntermittent buzzing in tuner Local interference Move unit or antenna away from computers, fluorescent lights, motors or other electrical appliancesLetters flash in the channel indicator Digital audio feed paused Resume play for DVDdisplay and digital audio stops Check that Digital Input
16、is selectedAMPLIFIER SECTION BIAS ADJUSTMENTCUP11517X (MAIN PCB)Measurement condition. No input signal or volume position is minimum.Standard value. Ideal current = 48mA ( 5%). Ideal DC Voltage = 21.12mV ( 5%)DC VOLTMETER.Connect to CN61, CN62, CN63, CN64, CN65NO.ChannelAdjust forAdjustment1Front Le
17、ft21.12mV (5%)VR61CN61VR612Front Right21.12mV (5%)21.12mV (5%)21.12mV (5%)21.12mV (5%)VR62CN62VR623CenterVR63CN63VR634Surround LeftVR64CN64VR645Surround RightVR65VR65CN65n Block DiagramSCFDACDATTDZFL1LOUT1+LOUT1-SCFDACDATTDZFR1ROUT1+ROUT1-SCFDACDATTDZFL2LOUT2+LOUT2-SCFDACDATTDZFR2ROUT2+ROUT2-SCFDACD
18、ATTDZFL3LOUT3+LOUT3-SCFDACDATTDZFR3ROUT3+ROUT3-AudioI/FControlRegisterAK4356MCLKLRCKBICKMCKOLRCKBICKXTIXTOControllerCSCCLKCDTILRCKBICKSDOUT1SDOUT2SDOUT3AC3SDTI1SDTI2SDTI3LOUT1-ROUT1+1LOUT1+442DZFL23DZFR14DZFL15CAD06CAD17PDN8BICK9MCLK10DVDD11ROUT1-43LOUT2+42LOUT2-41ROUT2+40ROUT2-39LOUT3+38LOUT3-37ROU
19、T3+36ROUT3-35AVSS34DVSS12SDTI113SDTI214SDTI315LRCK16SMUTE17CCLK18CDTI19CSN20DFS021CKS0223332313029282726252423AVDDVREFHDZFR2DZFL3DZFR3DZFEDIF2DIF1DIF0CKS2CKS1AK4356VQTop ViewD/A CONVERTER IC PIN ASSIGNMENT & BLOCK DIAGRAM PIN ASSIGNMENT (TOP VIEW)PIN/FUNCTIONNo.Pin NameI/OFunction1LOUT1-ODAC1 Lch Ne
20、gative Analog Output Pin2LOUT1+ODAC1 Lch Positive Analog Output Pin3DZFL2ODAC2 Lch Zero Input Detect Pin4DZFR1ODAC1 Rch Zero Input Detect Pin5DZFL1ODAC1 Lch Zero Input Detect Pin6CAD0IChip Address 0 Pin7CAD1IChip Address 1 Pin8PDNIPower-Down & Reset Pin When “L”, the AK4356 is powered-down and the c
21、ontrol registers are reset to default state. If the state of CAD0-1 changes, then the AK4356 must be reset by PDN.9BICKIAudio Serial Data Clock Pin10MCLKIMaster Clock Input Pin11DVDD-Digital Power Supply Pin, +4.75+5.25V12DVSS-Digital Ground Pin13SDTI1IDAC1 Audio Serial Data Input Pin14SDTI2IDAC2 Au
22、dio Serial Data Input Pin15SDTI3IDAC3 Audio Serial Data Input Pin16LRCKIAudio Input Channel Clock Pin17SMUTEISoft Mute Pin (Note) When this pin goes to “H”, soft mute cycle is initialized. When returning to “L”, the output mute releases.18CCLKIControl Data Clock Pin19CDTIIControl Data Input Pin20CSN
23、IChip Select Pin This pin should be held to “H” except for access.D/A CONVERTER IC PIN FUNCTION (AK4356VQ) : IC78No.Pin NameI/OFunction21DFS0IDouble Speed Sampling Mode 0 Pin (Note) “L”: Normal Speed, “H”: Double Speed at DFS1 bit = “0”.22CKS0IInput Clock Select 0 Pin (Note)23CKS1IInput Clock Select
24、 1 Pin (Note)24CKS2IInput Clock Select 2 Pin (Note)25DIF0IAudio Data Interface Format 0 Pin (Note)26DIF1IAudio Data Interface Format 1 Pin (Note)27DIF2IAudio Data Interface Format 2 Pin (Note)28DZFEIZero Input Detect Enable Pin (Note)29DZFR3ODAC3 Rch Zero Input Detect Pin30DZFL3ODAC3 Lch Zero Input
25、Detect Pin31DZFR2ODAC2 Rch Zero Input Detect Pin32VREFHIPositive Voltage Reference Input Pin, AVDD33AVDD-Analog Power Supply Pin34AVSS-Analog Ground Pin, +4.75+5.25V35ROUT3-ODAC3 Rch Negative Analog Output Pin36ROUT3+ODAC3 Rch Positive Analog Output Pin37LOUT3-ODAC3 Lch Negative Analog Output Pin38L
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