HarmanKardon-AVR325-avr-sm维修电路原理图.pdf

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1、 harman/kardon AVR325 AVR325 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 FRONT PANEL CONTROLS.5 FRONT PANEL DISPLAY.7 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.11 INSTALLATION AND CONNECTIONS.14 TROUBLESHOOTING GUIDE.17 PROCESSOR

2、RESET.17 SERVICE BULLETIN # H/K2003-05.18 TECH TIP HKTT2003-01.19 EXPLODED VIEW.20 EXPLODED VIEW PARTS LIST.21 AMPLIFIER BIAS ADJUSTMENT.23 BLOCK DIAGRAM.28 ELECTRICAL PARTS LIST.29 PCB DRAWINGS.80 SCHEMATICS.92 WIRING DIAGRAM. .111 PACKAGE.112 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, Ne

3、w York 11797 Rev0 8/2004 RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedduringservicing.Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified with, use only the replacement parts designated, or parts wit

4、h the same ratings or resistance, wattage, or voltage that are designated in theparts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptablyinsulated from the supply circuit before retuming the product to the customer.Some semicond

5、uctor (solid state) devices can be damaged easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors andsemiconductor chip components.The following techniques sho

6、uld be used to help reduce the incidence of component damage caused by static electricity.1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge onyour body by touching a known earth ground. Alternatively, obtain and wear a c

7、ommercially available discharging wrist strap device,which should be removed for potential shock reasons prior to applying power to the unit under test.2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, toprevent elect

8、rostatic charge build-up or exposure of the assembly.3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical chargessufficient to damage ES devices.5

9、. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacementES devices are packaged with leads electrically sho

10、rted together by conductive foam, aluminum foil or comparable conductive material.)7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to thechassis or circuit assembly into which the device will be installed.Be sure no powe

11、r is applied to the chassis or circuit, and observe all other safety precautions.8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing togetheror your clothes fabric or the lifting of your foot from a carpeted floor can generate s

12、tatic electricity sufficient to damage an ES devices.CAUTION :AVR325AVR325 harman/kardon RadioFans.CN 收音机爱 好者资料库21. Inspect all lead dress to make certain thatleads are not pinched or that hardware is notlodged between the chassis and other metalpartsintheunit.2. Be sure that any protective devices

13、such asnonmetallic control knobs, insulating fish-papers,cabinetbacks,adjustmentandcompartment covers or shields, isolationresistor-capacitynetworks,mechanicalinsulators, etc. Which were removed for theservicingareproperlyre-installed.Before returning the unit to the user, perform the following safe

14、ty checks :3. Be sure that no shock hazard exists ; check for leakagecurrentusingSimpsonModel229LeakageTester,standardequipment item No. 21641, RCA Model WT540A or usealternate method asfollows : Plug the power cord directlyInto a 120 volt AC receptacle (do not use an IsolationTransformer for this t

15、est). Using two clip leads, connect a1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthground,suchas a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher sensitivity to measure the AC voltage drop across theresistor. (Se

16、e diagram) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal,cabinet,screwheads,knobsandcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestshouldbeperformedwiththe0.35voltRMSormoreisexcessiveandindicatesapotent

17、ialshockhazardwhichmustbecorrectedbeforereturningtheunittotheowner.AVR325AVR325 harman/kardon 34AVR 325 TECHNICAL SPECIFICATIONSAudio SectionStereo Mode Continuous Average Power (FTC)65 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohmsSeven-Channel Surround Modes Power per In

18、dividual 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. F

19、ront 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-CH23AVR325AVR325 harman/kardon RV71 FRONT L-CHRV73 SURROUND L-CHP402 FRONT R-CHP304 SURROUND R-CH24AVR325AVR325 harman/kardon RV72 FRONT R-CHRV74 SURROUND R-CH25AVR325

20、AVR325 harman/kardon 2. 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-CH26AVR325AVR325 harman

21、/kardon P501 VR51 BACK SURROUND R-CH27AVR325AVR325 harman/kardon 28AVR325 Electrical Parts ListRef. DesignatorQtyDescriptionSURROUND PCB CapacitorsC30113076940AM1PCCE 470U0F +20% 63.0V 85CC30213076940AM1PCCE 470U0F +20% 63.0V 85CC30320268880301PCCE 10U0F +20% 50.0V 85CC30470428390711PCCC 270P0F +10%

22、 -10% 50.0V Y5PC30520269070301PCCE 100U0F +20% 25.0V 85CC30640433580711PCCC 680P0F +10% -10% 50.0V Y5PC30720246330711PCCC 3P0F +0P25F -0P25F 50.0V NP0C30820269080301PCCE 220U0F +20% 10.0V 85CC30980434720711PCCC 180P0F +10% -10% 50.0V Y5PC31055179400711PCCPM 68N0F +5% 63.0VC31120268880301PCCE 10U0F +

23、20% 50.0V 85CC31220268880301PCCE 10U0F +20% 50.0V 85CC31355179360711PCCPM 100N0F +10% 63.0VC31455179360711PCCPM 100N0F +10% 63.0VC32011055580711PCCC 4N7F +10% -10% 50.0V Y5PC33111055560711PCCC 3N3F +10% -10% 50.0V Y5PC40113076940AM1PCCE 470U0F +20% 63.0V 85CC40213076940AM1PCCE 470U0F +20% 63.0V 85CC

24、40320268880301PCCE 10U0F +20% 50.0V 85CC40470428390711PCCC 270P0F +10% -10% 50.0V Y5PC40520269070301PCCE 100U0F +20% 25.0V 85CC40640433580711PCCC 680P0F +10% -10% 50.0V Y5PC40720246330711PCCC 3P0F +0P25F -0P25F 50.0V NP0C40820269080301PCCE 220U0F +20% 10.0V 85CC40980434720711PCCC 180P0F +10% -10% 50

25、.0V Y5PC41055179400711PCCPM 68N0F +5% 63.0VC41120268880301PCCE 10U0F +20% 50.0V 85CC41220268880301PCCE 10U0F +20% 50.0V 85CC41355179360711PCCPM 100N0F +10% 63.0VC41455179360711PCCPM 100N0F +10% 63.0VC42011055580711PCCC 4N7F +10% -10% 50.0V Y5PC43111055560711PCCC 3N3F +10% -10% 50.0V Y5PC50113076940A

26、M1PCCE 470U0F +20% 63.0V 85CC50213076940AM1PCCE 470U0F +20% 63.0V 85CC50320268880301PCCE 10U0F +20% 50.0V 85CC50470428390711PCCC 270P0F +10% -10% 50.0V Y5PC50520269070301PCCE 100U0F +20% 25.0V 85CC50640433580711PCCC 680P0F +10% -10% 50.0V Y5PC50720246330711PCCC 3P0F +0P25F -0P25F 50.0V NP0C508202690

27、80301PCCE 220U0F +20% 10.0V 85CC50980434720711PCCC 180P0F +10% -10% 50.0V Y5PC51055179400711PCCPM 68N0F +5% 63.0VC51120268880301PCCE 10U0F +20% 50.0V 85CC51220268880301PCCE 10U0F +20% 50.0V 85CC51355179360711PCCPM 100N0F +10% 63.0VC51455179360711PCCPM 100N0F +10% 63.0VC52011055580711PCCC 4N7F +10% -

28、10% 50.0V Y5PC53111055560711PCCC 3N3F +10% -10% 50.0V Y5PC60115002130301PCCE 10U0F +20% 16.0V 85CSemiconductorsD30170436540161PCD-SLP 1N4148 100.0V 150E-3A29AVR325AVR325 harman/kardon Ref. DesignatorQtyDescriptionSURROUND PCB D30270436540161PCD-SLP 1N4148 100.0V 150E-3AD30370436540161PCD-SLP 1N4148

29、100.0V 150E-3AD30470436540161PCD-SLP 1N4148 100.0V 150E-3AD40170436540161PCD-SLP 1N4148 100.0V 150E-3AD40270436540161PCD-SLP 1N4148 100.0V 150E-3AD40370436540161PCD-SLP 1N4148 100.0V 150E-3AD40470436540161PCD-SLP 1N4148 100.0V 150E-3AD50170436540161PCD-SLP 1N4148 100.0V 150E-3AD50270436540161PCD-SLP

30、 1N4148 100.0V 150E-3AD50370436540161PCD-SLP 1N4148 100.0V 150E-3AD50470436540161PCD-SLP 1N4148 100.0V 150E-3AD60170436540161PCD-SLP 1N4148 100.0V 150E-3AQ30120556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ30220556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ30320556600561PCTR-SHPLF KTC3200BL N 100MI0A

31、120VQ30420508080561PCTR-SLPLF KTC3198BL N 150MI0AQ30555233090561PCTR-SLPLF 2SA1145Y TO-92MOD P -50MI0A -150VQ30620647850561PCTR-SHPLF KTA1268BL P 100MI0A 120VQ30720556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ30855133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ30955133240561PCTR-SLPLF KTC3206 Y N 50MI

32、0A 150VQ31155133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ31255133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150VQ31355133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150VQ3145513327001PCTR-SHPLF 2SC4137 N 100MI0A 20VQ31555133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ3165517919001PCTR-SHPLF 2SA1859A P -2.0AQ3175517

33、920001PCTR-SHPLF 2SC4883A N 2.0AQ3185517918001PCTR-SHPLF 2SC5358-R N 15.0AQ3195517915001PCTR-SHPLF 2SA1986-R P -15.0AQ32020556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ40120556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ40220556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ40320556600561PCTR-SHPLF KTC3200

34、BL N 100MI0A 120VQ40420508080561PCTR-SLPLF KTC3198BL N 150MI0AQ40555233090561PCTR-SLPLF 2SA1145Y TO-92MOD P -50MI0A -150VQ40620647850561PCTR-SHPLF KTA1268BL P 100MI0A 120VQ40720556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ40855133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ40955133240561PCTR-SLPLF KTC

35、3206 Y N 50MI0A 150VQ41155133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ41255133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150VQ41355133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150VQ4145513327001PCTR-SHPLF 2SC4137 N 100MI0A 20VQ41555133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ4165517919001PCTR-SHPLF 2SA1859A P

36、-2.0AQ4175517920001PCTR-SHPLF 2SC4883A N 2.0AQ4185517918001PCTR-SHPLF 2SC5358-R N 15.0AQ4195517915001PCTR-SHPLF 2SA1986-R P -15.0AQ42020556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ50120556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ50220556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ50320556600561PCTR-

37、SHPLF KTC3200BL N 100MI0A 120VQ50420508080561PCTR-SLPLF KTC3198BL N 150MI0AQ50555233090561PCTR-SLPLF 2SA1145Y TO-92MOD P -50MI0A -150VQ50620647850561PCTR-SHPLF KTA1268BL P 100MI0A 120VQ50720556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V30AVR325AVR325 harman/kardon Ref. DesignatorQtyDescriptionSURROUND

38、 PCB Q50855133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ50955133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150VQ51155133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ51255133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150VQ51355133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150VQ5145513327001PCTR-SHPLF 2SC4137 N 100MI0A 20VQ5

39、1555133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150VQ5165517919001PCTR-SHPLF 2SA1859A P -2.0AQ5175517920001PCTR-SHPLF 2SC4883A N 2.0AQ5185517918001PCTR-SHPLF 2SC5358-R N 15.0AQ5195517915001PCTR-SHPLF 2SA1986-R P -15.0AQ52020556600561PCTR-SHPLF KTC3200BL N 100MI0A 120VQ60120647850561PCTR-SHPLF KTA1268BL

40、P 100MI0A 120VResistorsR30160441550161PCRCF 330R0 OHM +5% 250MI0WR30230939490161PCRCF 33K0 OHM +5% 250MI0WR30355232810161PCRMF 10R0 OHM +5% 500MI0WR30420469510161PCRCF 43K0 OHM +5% 250MI0WR30520469450161PCRCF 220R0 OHM +5% 250MI0WR30620469450161PCRCF 220R0 OHM +5% 250MI0WR30720469450161PCRCF 220R0 O

41、HM +5% 250MI0WR30850882970161PCRCF 470R0 OHM +5% 250MI0WR30950882990161PCRCF 1K6 OHM +5% 250MI0WR31050882990161PCRCF 1K6 OHM +5% 250MI0WR31160441560161PCRCF 560R0 OHM +5% 250MI0WR31255498510161PCRMF 33K0 OHM +1% 250MI0WR31380437010161PCRCF 1K8 OHM +5% 250MI0WR31460441560161PCRCF 560R0 OHM +5% 250MI0

42、WR31560441560161PCRCF 560R0 OHM +5% 250MI0WR31660441560161PCRCF 560R0 OHM +5% 250MI0WR31760441560161PCRCF 560R0 OHM +5% 250MI0WR31860441560161PCRCF 560R0 OHM +5% 250MI0WR31990571090161PCRCF 200R0 OHM +5% 250MI0WR32050883010161PCRCF 15K0 OHM +5% 250MI0WR32150883010161PCRCF 15K0 OHM +5% 250MI0WR322905

43、71090161PCRCF 200R0 OHM +5% 250MI0WR32390571090161PCRCF 200R0 OHM +5% 250MI0WR32490571090161PCRCF 200R0 OHM +5% 250MI0WR32555232810161PCRMF 10R0 OHM +5% 500MI0WR32650882950161PCRCF 100R0 OHM +5% 250MI0WR32740438910161PCRCF 2R2 OHM +5% 250MI0WR32830939370161PCRCF 15R0 OHM +5% 250MI0WR32980437000161PC

44、RCF 1K2 OHM +5% 250MI0WR33060441550161PCRCF 330R0 OHM +5% 250MI0WR33355232810161PCRMF 10R0 OHM +5% 500MI0WR33411059590161PCRCF 82R0 OHM +5% 250MI0WR33530939370161PCRCF 15R0 OHM +5% 250MI0WR33650882950161PCRCF 100R0 OHM +5% 250MI0WR33740438910161PCRCF 2R2 OHM +5% 250MI0WR3385517934001PCRW 220MI0 OHM

45、+5% 5.0W 100PPM/C -100PPM/CR33940435630161PCRCF 1K5 OHM +5% 250MI0WR34050883010161PCRCF 15K0 OHM +5% 250MI0WR34140435630161PCRCF 1K5 OHM +5% 250MI0WR34290571130161PCRCF 39K0 OHM +5% 250MI0WR34355242290161PCRCF 10R0 OHM +5% 250MI0W31AVR325AVR325 harman/kardon Ref. DesignatorQtyDescriptionSURROUND PCB

46、 R34460441580161PCRCF 22K0 OHM +5% 250MI0WR34560442550161PCRMOF 10R0 OHM +5% 1.0WR34630939510161PCRCF 100K0 OHM +5% 250MI0WR40160441550161PCRCF 330R0 OHM +5% 250MI0WR40230939490161PCRCF 33K0 OHM +5% 250MI0WR40355232810161PCRMF 10R0 OHM +5% 500MI0WR40420469510161PCRCF 43K0 OHM +5% 250MI0WR40520469450

47、161PCRCF 220R0 OHM +5% 250MI0WR40620469450161PCRCF 220R0 OHM +5% 250MI0WR40720469450161PCRCF 220R0 OHM +5% 250MI0WR40850882970161PCRCF 470R0 OHM +5% 250MI0WR40950882990161PCRCF 1K6 OHM +5% 250MI0WR41050882990161PCRCF 1K6 OHM +5% 250MI0WR41160441560161PCRCF 560R0 OHM +5% 250MI0WR41255498510161PCRMF 3

48、3K0 OHM +1% 250MI0WR41380437010161PCRCF 1K8 OHM +5% 250MI0WR41460441560161PCRCF 560R0 OHM +5% 250MI0WR41560441560161PCRCF 560R0 OHM +5% 250MI0WR41660441560161PCRCF 560R0 OHM +5% 250MI0WR41760441560161PCRCF 560R0 OHM +5% 250MI0WR41860441560161PCRCF 560R0 OHM +5% 250MI0WR41990571090161PCRCF 200R0 OHM

49、+5% 250MI0WR42050883010161PCRCF 15K0 OHM +5% 250MI0WR42150883010161PCRCF 15K0 OHM +5% 250MI0WR42290571090161PCRCF 200R0 OHM +5% 250MI0WR42390571090161PCRCF 200R0 OHM +5% 250MI0WR42490571090161PCRCF 200R0 OHM +5% 250MI0WR42555232810161PCRMF 10R0 OHM +5% 500MI0WR42650882950161PCRCF 100R0 OHM +5% 250MI

50、0WR42740438910161PCRCF 2R2 OHM +5% 250MI0WR42830939370161PCRCF 15R0 OHM +5% 250MI0WR42980437000161PCRCF 1K2 OHM +5% 250MI0WR43060441550161PCRCF 330R0 OHM +5% 250MI0WR43355232810161PCRMF 10R0 OHM +5% 500MI0WR43411059590161PCRCF 82R0 OHM +5% 250MI0WR43530939370161PCRCF 15R0 OHM +5% 250MI0WR43650882950