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

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

5、miconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components. The following techn

6、iques should 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 on your body by touching a known earth ground. Alternatively, obtain a

7、nd wear a commercially 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, to

8、 prevent electrostatic 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 charges sufficient to da

9、mage ES devices. 5. 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 replacement ES devices are packaged with le

10、ads electrically shorted 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 the chassis or circuit assembly into which the device will be ins

11、talled. Be sure no power 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 together or your clothes fabric or the lifting of your foot from a carp

12、eted floor can generate static electricity sufficient to damage an ES devices. CAUTION : AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 2 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal partsintheunit. 2. Be

13、sure that any protective devices such as nonmetallic control knobs, insulating fish- papers,cabinetbacks,adjustmentand compartment covers or shields, isolation resistor-capacitynetworks,mechanical insulators, etc. Which were removed for the servicingareproperlyre-installed. Before returning the unit

14、 to the user, perform the following safety checks : 3. Be sure that no shock hazard exists ; check for leakage currentusingSimpsonModel229LeakageTester,standard equipment item No. 21641, RCA Model WT540A or use alternate method asfollows : Plug the power cord directly Into a 120 volt AC receptacle (

15、do not use an Isolation Transformer for this test). Using two clip leads, connect a 1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthground,such as a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher sensitivity to mea

16、sure the AC voltage drop across the resistor. (See 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.(Thistestshouldbe performedwit

17、hthe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningthe unittotheowner. AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 3 4 AVR 325 TECHNICAL SPECIFICATIONS Audio Section Stereo Mode Continuous Average Power (FTC) 65 Watts per channel, 20Hz20kHz, 0.

18、07% THD, both channels driven into 8 ohms Seven-Channel Surround Modes Power per Individual Channel Front L&R channels: 50 Watts per channel 0.07% THD, 20Hz20kHz into 8 ohms Center channel: 50 Watts 0.07% THD, 20Hz20kHz into 8 ohms Surround (L & R Side, L & R back) channels: 50 Watts per channel use

19、 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-CH 23 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 RV71 FRONT L-CHRV73

20、SURROUND L-CH P402 FRONT R-CHP304 SURROUND R-CH 24 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 RV72 FRONT R-CHRV74 SURROUND R-CH 25 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 2. BACK SURROUND BD : 5 Min. After power on, please set up Bias as below, SBL use VR31 then set P301 as 23mV +

21、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-CH 26 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 P501 VR51 BACK SURROUND R-CH 27 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 28 RadioFans.

22、CN 收音机爱好者资料库 AVR325 Electrical Parts List Ref. Designator QtyDescription SURROUND PCB Capacitors C30113076940AM1PCCE 470U0F +20% 63.0V 85C C30213076940AM1PCCE 470U0F +20% 63.0V 85C C30320268880301PCCE 10U0F +20% 50.0V 85C C30470428390711PCCC 270P0F +10% -10% 50.0V Y5P C30520269070301PCCE 100U0F +20

23、% 25.0V 85C C30640433580711PCCC 680P0F +10% -10% 50.0V Y5P C30720246330711PCCC 3P0F +0P25F -0P25F 50.0V NP0 C30820269080301PCCE 220U0F +20% 10.0V 85C C30980434720711PCCC 180P0F +10% -10% 50.0V Y5P C31055179400711PCCPM 68N0F +5% 63.0V C31120268880301PCCE 10U0F +20% 50.0V 85C C31220268880301PCCE 10U0F

24、 +20% 50.0V 85C C31355179360711PCCPM 100N0F +10% 63.0V C31455179360711PCCPM 100N0F +10% 63.0V C32011055580711PCCC 4N7F +10% -10% 50.0V Y5P C33111055560711PCCC 3N3F +10% -10% 50.0V Y5P C40113076940AM1PCCE 470U0F +20% 63.0V 85C C40213076940AM1PCCE 470U0F +20% 63.0V 85C C40320268880301PCCE 10U0F +20% 5

25、0.0V 85C C40470428390711PCCC 270P0F +10% -10% 50.0V Y5P C40520269070301PCCE 100U0F +20% 25.0V 85C C40640433580711PCCC 680P0F +10% -10% 50.0V Y5P C40720246330711PCCC 3P0F +0P25F -0P25F 50.0V NP0 C40820269080301PCCE 220U0F +20% 10.0V 85C C40980434720711PCCC 180P0F +10% -10% 50.0V Y5P C41055179400711PC

26、CPM 68N0F +5% 63.0V C41120268880301PCCE 10U0F +20% 50.0V 85C C41220268880301PCCE 10U0F +20% 50.0V 85C C41355179360711PCCPM 100N0F +10% 63.0V C41455179360711PCCPM 100N0F +10% 63.0V C42011055580711PCCC 4N7F +10% -10% 50.0V Y5P C43111055560711PCCC 3N3F +10% -10% 50.0V Y5P C50113076940AM1PCCE 470U0F +20

27、% 63.0V 85C C50213076940AM1PCCE 470U0F +20% 63.0V 85C C50320268880301PCCE 10U0F +20% 50.0V 85C C50470428390711PCCC 270P0F +10% -10% 50.0V Y5P C50520269070301PCCE 100U0F +20% 25.0V 85C C50640433580711PCCC 680P0F +10% -10% 50.0V Y5P C50720246330711PCCC 3P0F +0P25F -0P25F 50.0V NP0 C50820269080301PCCE

28、220U0F +20% 10.0V 85C C50980434720711PCCC 180P0F +10% -10% 50.0V Y5P C51055179400711PCCPM 68N0F +5% 63.0V C51120268880301PCCE 10U0F +20% 50.0V 85C C51220268880301PCCE 10U0F +20% 50.0V 85C C51355179360711PCCPM 100N0F +10% 63.0V C51455179360711PCCPM 100N0F +10% 63.0V C52011055580711PCCC 4N7F +10% -10%

29、 50.0V Y5P C53111055560711PCCC 3N3F +10% -10% 50.0V Y5P C60115002130301PCCE 10U0F +20% 16.0V 85C Semiconductors D30170436540161PCD-SLP 1N4148 100.0V 150E-3A 29 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 Ref. Designator QtyDescription SURROUND PCB D30270436540161PCD-SLP 1N4148 100.0V 150E-3A

30、D30370436540161PCD-SLP 1N4148 100.0V 150E-3A D30470436540161PCD-SLP 1N4148 100.0V 150E-3A D40170436540161PCD-SLP 1N4148 100.0V 150E-3A D40270436540161PCD-SLP 1N4148 100.0V 150E-3A D40370436540161PCD-SLP 1N4148 100.0V 150E-3A D40470436540161PCD-SLP 1N4148 100.0V 150E-3A D50170436540161PCD-SLP 1N4148

31、100.0V 150E-3A D50270436540161PCD-SLP 1N4148 100.0V 150E-3A D50370436540161PCD-SLP 1N4148 100.0V 150E-3A D50470436540161PCD-SLP 1N4148 100.0V 150E-3A D60170436540161PCD-SLP 1N4148 100.0V 150E-3A Q30120556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q30220556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q30

32、320556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q30420508080561PCTR-SLPLF KTC3198BL N 150MI0A Q30555233090561PCTR-SLPLF 2SA1145Y TO-92MOD P -50MI0A -150V Q30620647850561PCTR-SHPLF KTA1268BL P 100MI0A 120V Q30720556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q30855133260561PCTR-SLPLF KTA1024 Y P 50MI0A

33、 -150V Q30955133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q31155133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150V Q31255133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q31355133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q3145513327001PCTR-SHPLF 2SC4137 N 100MI0A 20V Q31555133260561PCTR-SLPLF KTA1024 Y P 50MI0A

34、-150V Q3165517919001PCTR-SHPLF 2SA1859A P -2.0A Q3175517920001PCTR-SHPLF 2SC4883A N 2.0A Q3185517918001PCTR-SHPLF 2SC5358-R N 15.0A Q3195517915001PCTR-SHPLF 2SA1986-R P -15.0A Q32020556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q40120556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q40220556600561PCTR-SH

35、PLF KTC3200BL N 100MI0A 120V Q40320556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q40420508080561PCTR-SLPLF KTC3198BL N 150MI0A Q40555233090561PCTR-SLPLF 2SA1145Y TO-92MOD P -50MI0A -150V Q40620647850561PCTR-SHPLF KTA1268BL P 100MI0A 120V Q40720556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q40855133260

36、561PCTR-SLPLF KTA1024 Y P 50MI0A -150V Q40955133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q41155133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150V Q41255133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q41355133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q4145513327001PCTR-SHPLF 2SC4137 N 100MI0A 20V Q415551332605

37、61PCTR-SLPLF KTA1024 Y P 50MI0A -150V Q4165517919001PCTR-SHPLF 2SA1859A P -2.0A Q4175517920001PCTR-SHPLF 2SC4883A N 2.0A Q4185517918001PCTR-SHPLF 2SC5358-R N 15.0A Q4195517915001PCTR-SHPLF 2SA1986-R P -15.0A Q42020556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q50120556600561PCTR-SHPLF KTC3200BL N 100

38、MI0A 120V Q50220556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q50320556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q50420508080561PCTR-SLPLF KTC3198BL N 150MI0A Q50555233090561PCTR-SLPLF 2SA1145Y TO-92MOD P -50MI0A -150V Q50620647850561PCTR-SHPLF KTA1268BL P 100MI0A 120V Q50720556600561PCTR-SHPLF KTC32

39、00BL N 100MI0A 120V 30 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 Ref. Designator QtyDescription SURROUND PCB Q50855133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150V Q50955133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q51155133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150V Q51255133240561PCTR-SLPLF KTC3

40、206 Y N 50MI0A 150V Q51355133240561PCTR-SLPLF KTC3206 Y N 50MI0A 150V Q5145513327001PCTR-SHPLF 2SC4137 N 100MI0A 20V Q51555133260561PCTR-SLPLF KTA1024 Y P 50MI0A -150V Q5165517919001PCTR-SHPLF 2SA1859A P -2.0A Q5175517920001PCTR-SHPLF 2SC4883A N 2.0A Q5185517918001PCTR-SHPLF 2SC5358-R N 15.0A Q51955

41、17915001PCTR-SHPLF 2SA1986-R P -15.0A Q52020556600561PCTR-SHPLF KTC3200BL N 100MI0A 120V Q60120647850561PCTR-SHPLF KTA1268BL P 100MI0A 120V Resistors R30160441550161PCRCF 330R0 OHM +5% 250MI0W R30230939490161PCRCF 33K0 OHM +5% 250MI0W R30355232810161PCRMF 10R0 OHM +5% 500MI0W R30420469510161PCRCF 43

42、K0 OHM +5% 250MI0W R30520469450161PCRCF 220R0 OHM +5% 250MI0W R30620469450161PCRCF 220R0 OHM +5% 250MI0W R30720469450161PCRCF 220R0 OHM +5% 250MI0W R30850882970161PCRCF 470R0 OHM +5% 250MI0W R30950882990161PCRCF 1K6 OHM +5% 250MI0W R31050882990161PCRCF 1K6 OHM +5% 250MI0W R31160441560161PCRCF 560R0

43、OHM +5% 250MI0W R31255498510161PCRMF 33K0 OHM +1% 250MI0W R31380437010161PCRCF 1K8 OHM +5% 250MI0W R31460441560161PCRCF 560R0 OHM +5% 250MI0W R31560441560161PCRCF 560R0 OHM +5% 250MI0W R31660441560161PCRCF 560R0 OHM +5% 250MI0W R31760441560161PCRCF 560R0 OHM +5% 250MI0W R31860441560161PCRCF 560R0 OH

44、M +5% 250MI0W R31990571090161PCRCF 200R0 OHM +5% 250MI0W R32050883010161PCRCF 15K0 OHM +5% 250MI0W R32150883010161PCRCF 15K0 OHM +5% 250MI0W R32290571090161PCRCF 200R0 OHM +5% 250MI0W R32390571090161PCRCF 200R0 OHM +5% 250MI0W R32490571090161PCRCF 200R0 OHM +5% 250MI0W R32555232810161PCRMF 10R0 OHM

45、+5% 500MI0W R32650882950161PCRCF 100R0 OHM +5% 250MI0W R32740438910161PCRCF 2R2 OHM +5% 250MI0W R32830939370161PCRCF 15R0 OHM +5% 250MI0W R32980437000161PCRCF 1K2 OHM +5% 250MI0W R33060441550161PCRCF 330R0 OHM +5% 250MI0W R33355232810161PCRMF 10R0 OHM +5% 500MI0W R33411059590161PCRCF 82R0 OHM +5% 25

46、0MI0W R33530939370161PCRCF 15R0 OHM +5% 250MI0W R33650882950161PCRCF 100R0 OHM +5% 250MI0W R33740438910161PCRCF 2R2 OHM +5% 250MI0W R3385517934001PCRW 220MI0 OHM +5% 5.0W 100PPM/C -100PPM/C R33940435630161PCRCF 1K5 OHM +5% 250MI0W R34050883010161PCRCF 15K0 OHM +5% 250MI0W R34140435630161PCRCF 1K5 OH

47、M +5% 250MI0W R34290571130161PCRCF 39K0 OHM +5% 250MI0W R34355242290161PCRCF 10R0 OHM +5% 250MI0W 31 AVR325AVR325 harman/kardon RadioFans.CN 收音机爱好者资料库 Ref. Designator QtyDescription SURROUND PCB R34460441580161PCRCF 22K0 OHM +5% 250MI0W R34560442550161PCRMOF 10R0 OHM +5% 1.0W R34630939510161PCRCF 1

48、00K0 OHM +5% 250MI0W R40160441550161PCRCF 330R0 OHM +5% 250MI0W R40230939490161PCRCF 33K0 OHM +5% 250MI0W R40355232810161PCRMF 10R0 OHM +5% 500MI0W R40420469510161PCRCF 43K0 OHM +5% 250MI0W R40520469450161PCRCF 220R0 OHM +5% 250MI0W R40620469450161PCRCF 220R0 OHM +5% 250MI0W R40720469450161PCRCF 220R0 OHM +5% 250MI0W R40850882970161PCRCF 470R0 OHM +5% 250MI0W R40950882990161PCRCF 1K6 OHM +5% 250MI0W R41050882990161PCRCF 1K6 OHM +5% 250MI0W R41160441560161PCRCF 560R0 OHM +5% 250MI0W R4125