Harman-Kardon-AVR-300-Service-Manual电路图 维修手册.pdf

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1、harman/kardon AVR300 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS SPECIFICATIONS.2 ESD WARNING. .4 LEAKAGE TESTING.5 CONTROLS AND FUNCTIONS. .6 SERVICE PROCEDURE.9 ALIGNMENT PROCEDURE. .9 IDLE CURRENT/DC OFFSET.10 ALIGNMENT/TEST POINTS. 11 CIRCUIT DESCRIPTION. 13 BLOCK DIAGRAM 16 BULLETIN HK20

2、00-05. 17 BULLETIN HK2000-02 Rev1.18 DISASSEMBLY PROCEDURE.21 UNIT EXPLODED VIEW.22 MECHANICAL PARTS LIST.23 PCB DRAWINGS25 ELECTRICAL PARTS LIST.30 INTEGRATED CIRCUIT DRAWINGS.52 SCHEMATICS.80 SEMICONDUCTOR PINOUTS.89 WIRING DIAGRAM.90 PACKAGE.91 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury,

3、 New York 11797Rev0 6/2002 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 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 , us

4、e only the replacement parts designated, or parts 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 be

5、fore retuming the product to the customer. Some semiconductor (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

6、semiconductor chip components. The following techniques 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 touc

7、hing a known earth ground. Alternatively, obtain and 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

8、 on a conductive surface such as aluminum foil, to 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-stati

9、c can generate electrical charges sufficient to damage 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.

10、 (Most replacement ES devices are packaged with leads 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

11、circuit assembly into which the device will be installed. 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 clot

12、hes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices. CAUTION : - 4 - 300 1. lnspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal partsintheunit.

13、 2. Be 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 t

14、he unit 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 as follows : Plug the power cord directly Into a 120 volt AC rece

15、ptacle (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 sensitivit

16、y to measure 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, be performedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningthe unit

17、totheowner. - 5 - 300 ? SERVICE PROCEDURE TEST EQUIPMENT REQUIRED 1) AM/FM Signal generator 2) Digital Multimeter 3) Distortion lever meter 2. VFD segment illumination CENTER MAIN: VR401, VR402, VR501 SURROUND : VR601, VR602 2) NO signal / NO LOAD 3) AC LINE VOLTAGE : 120V/60Hz, 230V/50Hz (2) After

18、turning on the unit, keep it over than 5MIN. (Keep the Power/Drive TR as normal temperature) (3) Adjust the voltage value of primary CENTER MAIN: VR403, VR404, VR502 SURROUND : VR603, VR604 2) NO signal / NO LOAD 3) AC LINE VOLTAGE : 120V/60Hz, 230V/50Hz (2) After turning on the unit, keep it over t

19、han 5MIN. (Keep the Power/Drive TR as normal temperature) (3) Adjust the voltage value of primary cut any plastic cable ties necessary to fully disengage it 7) Lift and set the receiver on its right side for the remainder of the procedure. 8) Remove molex connector CN983 at the power switch; see Fig

20、ure 1. 9) Pull the front panel as far away as the remaining connecting wires will allow. 10) Unsolder the connections at the rear of the front PCB to the volume encoder. 11) Using a “stubby” Phillips screwdriver, remove the (19) Black Phillips screws holding the front PCB to the front panel; two pla

21、ted screws at the rear of the headphone jack also must be removed. 12) Pull the front PCB away from the front panel. 13) Remove and replace the volume encoder with h/k part# J32612050102; resolder the new encoder in place. 14) Replace the front PCB and reassemble the receiver in reverse order, follo

22、wing the instructions above. Replace all cable ties that were cut, and reattach any connectors that were unplugged. Make sure the two ground wires on both sides of the receiver are reattached. 15) Power up receiver, and test volume control to assure it no longer changes settings by itself, or when t

23、he volume knob is tapped. 17 harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400 harman/kardon Service Bulletin Service bulletin # H/K2000-02 Rev1 January 2001Warranty labor rate: MAJOR repair To: All harman/kardon Service Centers Models: AVR300, AVR500 Subjec

24、t: Random Noise, Erratic Output in DTS Mode In the event you receive an AVR300 or AVR500 receiver with the complaint “there is distortion, random noise or gaps in the program material when in the DTS mode”, perform the following procedure: REMOVAL AND MODIFICATION OF THE DSP BOARD 1) Remove the top

25、cover, (14) Black Phillips screws. 2) Locate the DSP PC Board; Figure 1. Remove the two metal braces at the top of the unit. If necessary, cut the cable ties attached to the braces to move any wires away from the area. 3) Pull the white 22 conductor ribbon cable at the rear of the DSP PC Board strai

26、ght out of its receptacle. 4) Unplug the white 5 conductor molex cable at the top of the DSP PC Board. 5) Remove the (33) plated Phillips screws on the left side of the rear backplate; see Figure 2. Do not remove any additional screws on the right side. If using a power tool, use care and minimum ef

27、fort to avoid damaging the various plastic receptacles. 6) Remove all three black plastic plugs that cover the optical inputs at the rear of the DSP PC Board. 7) Pull on the left side of the rear backplate, away from the receiver chassis; you should be able to pull it away enough to allow the DSP PC

28、 Board to be pulled straight up and out of the receiver. 8) Proceed with the modifications on page 2. ModelSerial Number 120V Serial Number 230V RDS STATUSACTION AVR300 AVR500 TH0001-01000 To TH0001-13886 TH0002-01000 To TH0002-10460 TH0005-01000 To TH0005-03317 TH0006-01000 To TH0006-02795 Random N

29、oise, Erratic Output or Gaps in Program Material when in DTS Mode Modifications to DSP Board: Add ground wire; Change R756 confirm the complaint of Random Noise or Erratic Output is no longer occurring. 19 harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400 Mo

30、dels: AVR300, AVR500Subject: Volume Level Changes ModelSerial Number 120V Serial Number 230V RDSSTATUSACTION AVR300 AVR500 TH0001-01000 To TH0001-08402 TH0002-01000 To TH0002-05565 TH0005-01000 To TH0005-01001 TH0006-01000 To TH0006-01001 Volume level changes by itself or when volume knob is tapped

31、Change VR901 Rotary encoder AVR300 AVR500 TH0001-08403 Or higher TH0002-05566 Or higher TH0005-01002 Or higher TH0006-01002 Or higher Modified by factoryNONE REQUIRED 20 DISASSEMBLY PROCEDUREDISASSEMBLY PROCEDURE 1. Removingthe top cover , and Removescrews 4. Removingthe main PCBblock, and Removescr

32、ews 2. Removingthe front panel,and Removescrews 5. Removingthe power PCBblock, and Remove 3. Removingthe rearpanel,and Removescrews 1. Removeall of the screwson Rearpanel. 2. Removethe Rearpanel. 3. RemovePCBBrk t and Guide 5. Removethe Main PCBblock. Brk t from Main Assy. 4. Removeall of the screws

33、that connectwith main Assy. 1. Remove4 screwson Rearpanel. 2. Removethe Rearpanel. 3. RemovePCBBrk t and Guide 4. Removethe SUBPCBblock. Brk t from Main Assy. 1. RemoveMain 2. Removevolumeand rotary knob from the front 3. Removeall of the screwson backsideof F ront function PCB. 4. Removethe F ront

34、function PCB. Assy. Assy. 1. RemovePCBBrk t and Guide 3. Removethe POWER PCBblock. Brk t from Main Assy. 2. Remove4 screwsfor P ower PCBmounting 6. Removingthe subPCBblock, and Removescrews MAIN AMP PCB BLOCKMAIN AMP PCB BLOCK SUB PCB BLOCKSUB PCB BLOCK FRONT PCB BLOCKFRONT PCB BLOCK POWER PCB BLOCK

35、POWER PCB BLOCK - 21 22 23 24 1 2 3 4 5 6 7 BCDEFGHIJA 25 1 2 3 4 5 6 7 BCDEFGHIJA 26 1 2 3 4 5 6 7 BCDEFGHIJA 27 1 2 3 4 5 6 7 BCDEFGHIJA 28 29 ELECTRICAL PARTS LIST(300Series) DSP P.C. BOARD REF NO.PART NO.DESCRIPTIONREF NO.PART NO.DESCRIPTION J1320035205XDSP P.C. BOARDIBBEADs J1320035105XDSP P.C.

36、 BOARDBKL 704 J2631200010X HC3550 9.4ohmAXIAL L 705 J2631200010X HC3550 9.4ohmAXIAL INTEGRATED CIRCUITsL 706 J2631200010X HC3550 9.4ohmAXIAL IC 1 J2142930002X 74VHCT04SJXHEX INVERTL 707 J2631200010X HC3550 9.4ohmAXIAL IC 2 J2120012001X NJM4558MOP-AMPL 708 J2631200010X HC3550 9.4ohmAXIAL IC 701 J2120

37、012002X NJM072MOP-AMPL 709 J2631200010X HC3550 9.4ohmAXIAL IC 702 J2120012002X NJM072MOP-AMPL 821 J2631200010X HC3550 9.4ohmAXIAL IC 703 J2133926002X CS5360-KSA/D CONVERTER IC 704 J2142930001X 74VHC153SJXMULTIPLEXERR 6 J2631300174X HB-1T2012-601CHIP IC 705 J2129012001X NJU6324MQUARTZ OSCR 7 J2631300

38、174X HB-1T2012-601CHIP IC 706 J2136926001X CS8414-CSDIGITAL AUDIO Rx.R 13 J2631300184X HB-1T2012-202CHIP IC 707 J2142930003X 74VHCT244SJXOCTAL NON-INVERTR 14 J2631300174X HB-1T2012-601CHIP IC 708 J2135326003X CS492604DDECODERR 15 J2631300174X HB-1T2012-601CHIP IC 709 J2131003001X KM23C4000DG-8ROM-00

39、01R 17 J2631300174X HB-1T2012-601CHIP IC 709 J2131328002X AT27C040-100JCROM OTPR 18 J2631300174X HB-1T2012-601CHIP IC 710 J2142930004X 74VHCT574SJXOCTAL D-FILP FLOPR 19 J2631300174X HB-1T2012-601CHIP IC 711 J2142930004X 74VHCT574SJXOCTAL D-FILP FLOPR 109 J2631300174X HB-1T2012-601CHIP IC 712 J213232

40、1002X HD404354A52HMCU-0002R 731 J2631300174X HB-1T2012-601CHIP IC 712 J2132321001X HD407A435PHSUB-u-COM OTPR 732 J2631300174X HB-1T2012-601CHIP IC 713 J2133926003X CS4341-KSD/A CONVERTERR 734 J2631300174X HB-1T2012-601CHIP IC 714 J2133926003X CS4341-KSD/A CONVERTERR 755 J2631300174X HB-1T2012-601CHI

41、P IC 715 J2133926003X CS4341-KSD/A CONVERTERR 756 J2631300174X HB-1T2012-601CHIP IC 716 J2120012002X NJM072MOP-AMPR 760 J2631300174X HB-1T2012-601CHIP IC 717 J2120012002X NJM072MOP-AMPR 767 J2631300174X HB-1T2012-601CHIP IC 718 J2120012002X NJM072MOP-AMPR 781 J2631300174X HB-1T2012-601CHIP IC 719 J2

42、142930006X 74VHCU04MXHEX INVERTR 782 J2631300174X HB-1T2012-601CHIP IC 720 J2112504001X BA033TREGULATOR 3.3VR 785 J2631300174X HB-1T2012-601CHIP IC 722 J2120012001X NJM4558MOP-AMPR 799 J2631300174X HB-1T2012-601CHIP IC 723 J2120012001X NJM4558MOP-AMPR 800 J2631300174X HB-1T2012-601CHIP IC 724 J21200

43、12001X NJM4558MOP-AMPR 817 J2631300174X HB-1T2012-601CHIP IC 725 J2120012001X NJM4558MOP-AMPR 818 J2631300174X HB-1T2012-601CHIP R 839 J2631300174X HB-1T2012-601CHIP TRANSISTORsR 840 J2631300174X HB-1T2012-601CHIP Q 703 J2021000201X KTA1266-YPNPR 853 J2631300174X HB-1T2012-601CHIP Q 704 J2021220101X

44、 KRC101MNPNR 854 J2631300174X HB-1T2012-601CHIP Q 705 J2021200101X KRA101MPNPR 869 J2631300174X HB-1T2012-601CHIP Q 706 J2021060001X KTD1302-BNPNR 870 J2631300174X HB-1T2012-601CHIP Q 707 J2021060001X KTD1302-BNPN Q 708 J2021220101X KRC101MNPNRESISTORs Q 709 J2021200101X KRA101MPNPR 822 J3013561320X

45、 1/5WCARBON560W-J Q 710 J2021060001X KTD1302-BNPN Q 711 J2021060001X KTD1302-BNPNR 1 J3024101120X 1/10W CHIP100W-J Q 712 J2021220101X KRC101MNPNR 2 J3024222120X 1/10W CHIP2K2W-J Q 713 J2021200101X KRA101MPNPR 3 J3024473120X 1/10W CHIP47KW-J Q 714 J2021060001X KTD1302-BNPNR 4 J3024473120X 1/10W CHIP4

46、7KW-J Q 715 J2021060001X KTD1302-BNPNR 5 J3024222120X 1/10W CHIP2K2W-J Q 716 J2021220301X KRC103MNPNR 8 J3024472120X 1/10W CHIP4K7W-J R 9 J3024472120X 1/10W CHIP4K7W-J DIODEsR 10 J3024101120X 1/10W CHIP100W-J D 705 J2221010100X 1SS133SW.R 11 J3024474120X 1/10W CHIP470KW-J D 706 J2221010100X 1SS133SW

47、.R 12 J3024474120X 1/10W CHIP470KW-J R 701 J3024203120X 1/10W CHIP20KW-J COILsR 702 J3024203120X 1/10W CHIP20KW-J L 701 J2616247020X AXIAL LAL0247uH-KR 703 J3024103120X 1/10W CHIP10KW-J L 702 J2616247020X AXIAL LAL0247uH-KR 704 J3024103120X 1/10W CHIP10KW-J L 703 J2616247020X AXIAL LAL0247uH-KR 705

48、J3024103120X 1/10W CHIP10KW-J -30 REF NO.PART NO.DESCRIPTIONREF NO.PART NO.DESCRIPTION R 705 J3024103120X 1/10W CHIP10KW-JR 787 J3024561120X 1/10W CHIP560W-J R 706 J3024103120X 1/10W CHIP10KW-JR 788 J3024103120X 1/10W CHIP10KW-J R 707 J3024473120X 1/10W CHIP47KW-JR 789 J3024103120X 1/10W CHIP10KW-J

49、R 708 J3024473120X 1/10W CHIP47KW-JR 790 J3024223120X 1/10W CHIP22KW-J R 709 J3024103120X 1/10W CHIP10KW-JR 791 J3024223120X 1/10W CHIP22KW-J R 710 J3024103120X 1/10W CHIP10KW-JR 792 J3024101120X 1/10W CHIP100W-J R 711 J3024151120X 1/10W CHIP150W-JR 793 J3024103120X 1/10W CHIP10KW-J R 712 J3024151120X 1/10W CHIP150W-JR 794 J3024103120X 1/10W CHIP10KW-J R 713 J3024151120X 1/10W CHIP150W-JR 795 J3024122120X 1/10W CHIP1K2W-J R 714 J3024151120X 1/10W CHIP150W-JR 796 J3024122120X 1/10W CHIP