Harman-Kardon-AVR-525-Service-Manual 电路图 维修手册.pdf

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1、 harman/kardon AVR525 AVR525 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 BLOCK DIAGRAM.18 AMPLIFIER BIAS ADJUSTMENT.19 SERVICE BULLETIN # H/K2003-05.24 TECH TIP HKTT2003-01.25 EXPLODED VIEW.26 EXPLODED VIEW PARTS LIST.27 ELECTRICAL PARTS LIST.29 PCB DRAWINGS.85 SCHEMATICS.97 WIRING DIAGRAM.116 PACKAGE.117 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New

3、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 wi

4、th 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 semi

5、conductor (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 techniq

6、ues 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 and

7、 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 p

8、revent 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 dama

9、ge 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 lead

10、s 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 insta

11、lled. 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 carpet

12、ed floor can generate static electricity sufficient to damage an ES devices. CAUTION : AVR525AVR525 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 su

13、re 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 t

14、o 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 (do

15、 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 measu

16、re 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 performedwitht

17、he0.35voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningthe unittotheowner. AVR525AVR525 harman/kardon RadioFans.CN 收音机爱 好者资料库 3 4 AVR 525 TECHNICAL SPECIFICATIONS Audio Section Stereo Mode Continuous Average Power (FTC) 85 Watts per channel, 20Hz20kHz, 0.07

18、% THD, both channels driven into 8 ohms Seven-Channel Surround Modes Power per Individual Channel Front L units without the upgrade may exhibit the following symptoms: 1) Dolby Digital EX mode only, Delay adjustment, any speaker size selected: Adjusting the delay time at 14 feet or greater for surro

19、und back, surround or center channels, may generate a distortion (like a feedback signal) from the subwoofer output. Lowering the delay level below 14 feet eliminates the distortion. 2) The Triple Crossover feature: Settings allow a different crossover point to be used for the front left/right, cent

20、er and surround speakers. If the settings are not configured properly, the user could actually create a frequency notch and “cut out” certain bass frequencies, or, over-enhance bass frequencies by overlapping the X-Over points. (NOTE: It would be a rare occurrence where symptom #2 would generate a c

21、omplaint) AVR325 IC12, (CXP82852-375Q) order and replace with h/k part # 55646260 (CXP82860-390Q). AVR525 IC12, (CXP82852-377Q) order and replace with h/k part # 55645960 (CXP82860-391Q). WARNING: FOLLOW PROPER STATIC CONTROL PROCEDURES and use caution during the removal of the DSP board, and during

22、 installation of new IC12 to prevent damage. Sub Micro CXP82852-375Q (IC12) is on the DSP board. Remove top cover, Processor board, all Molex connectors and rear screws necessary to access DSP board. Disengage both Processor and DSP PCB from the rear PCB connector by pushing back on the rear board;

23、lift the Processor PCB up and out of the unit. Not all connectors need to be removed when enough connectors are unplugged, the Processor PCB can be lifted out of the way to access the DSP board. Disengage the DSP PCB from its rear connector by pushing back on the rear PCB; lift the DSP PCB up and ou

24、t of the unit. Locate and replace IC12; See drawing. After replacement, replace all connectors and screws. CAUTION: At the rear screws, if using a power tool, use care and minimum force to avoid damaging the various plastic receptacles. Test the unit. Model Serial Number (120v) Status Action AVR325

25、All Serial Numbers Affected Dolby Digital Ex Mode Delay Adjustment Oscillation; Triple Crossover Change IC12 AVR525 All Serial Numbers Affected Dolby Digital Ex Mode Delay Adjustment Oscillation; Triple Crossover Change IC12 24 AVR525AVR525 harman/kardon harman/kardon TECH TIPSTECH TIPS Troubleshoot

26、ing tips and solutions to common service problems For models: AVR7000/7200/8000 TIP# HKTT2003-01 Rev2 AVR100/200/300/500 AVR110/210/310/510 AVR120/220/320/520 AVR125/225/325/525 AVR130/230/330/430/630 AVR10 DPR1001 HK3370/3470/3375/3475 HK3250 Subject: Backup Memory on AVR/DPR/HK series receivers In

27、 the event of the complaint: “the receiver is losing its memory (any programmed system settings) when the unit is turned off, or after the unit is unplugged (briefly*)”: Check and replace: Model Designator Location Description Part number AVR10 C712 D709 Front PCB 0.047 Farad 5.5v capacitor and 1N41

28、48 small signal diode #3439247315 #2058322101 AVR7000 C730 Front PCB 0.047 Farad 5.5v capacitor # 55134360 or # J3432147324X AVR7200 C106 Front PCB 0.047 Farad 5.5v capacitor # 55134360 AVR8000 C726 Front PCB 0.047 Farad 5.5v capacitor # 55230310NR or # 55134360 AVR100/200 C412 Front PCB 0.047 Farad

29、 5.5v capacitor # CEGT-B473J-0J0 AVR300 C906 Front PCB 0.1Farad 5.5v capacitor # J4433210421X or # P10791-ND AVR500 C906 Front PCB 0.1Farad 5.5v capacitor # J4433210421X or # P10791-ND AVR110/210/310/510 AVR120/220/320/520 C216 Front PCB 0.047 Farad 5.5v capacitor # 55134360 AVR125/225 C734, C885 Fr

30、ont PCB two 0.1F capacitors in parallel # BCESOHD104 AVR325/525 C106 Front PCB 0.047 Farad 5.5v capacitor # 55134360 AVR130/230/330 BAT1 Front PCB 3.6v Battery # HABGP40BVH3A3H AVR430/630 C657 DSP PCB 0.047 Farad 5.5v capacitor # CEZXA0479MN-5 DPR1001 BC601 Main PCB 0.1Farad 5.5v capacitor # CEGT-B1

31、04J-0J0 HK3370/3470 C301 Front PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0 HK3375/3475 C301 Front PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0 HK3250 C712 D709 Front PCB 0.047 Farad 5.5v capacitor and 1N4148 small signal diode #3439247315 #2058322101 * After approximately two weeks of being disconn

32、ected from AC supply, even a normally functioning receiver may lose any programmed settings and switch to default settings. 25 AVR525AVR525 harman/kardon 26 AVR525AVR525 harman/kardon AVR 525 EXPLODED VIEW PARTS LIST #Part NumberQtyDescription 155178050XX1AC PUN COVER TOP 255142780NR1DISPLAY HNA-15L

33、L01 355050690XX1CONN-PHJAC 6.35 ST HORZ CKX3-6.35-04 BK 0 0 455124350XX1AC PUN BRACKET HEADPHONE 555178000NR1SW PUSH POWER SWITCH 5.0A 250.0V 100MI0OHM 1T 2P 655178020XX1AC MLD BUTTON INDICATOR STAND-BY 755177810XX1AC DEC BUTTON POWER 855177820XX1AC DEC BUTTON STANDBY 955405780XX1AC DEC CABINET PANE

34、L FRONT 525 1055177800XX1AC DEC CRYSTAL FILTER DISPLAY 1155191560XX1AC NON-METAL DIFFUSER 0.2T 62.5*41 WH 1255177740XX1AC DEC KNOB MAIN HIPS 94H 1355405940XX1AC DEC CRYSTAL DISPLAY AVR525 1455177990XX1AC NON-METAL DIFFUSER 0.2T 59.6*41 WH 1555177750XX3AC DEC KNOB TONE 1655178030XX2AC MLD BUTTON INDI

35、CATOR VIDEO 4 1755445260XX1AC DEC BUTTON 7 KEY 1855125440XX3D-LEM TOTX178B RD RND CL 1955175950XX1CON PHONO SCKT RCA 1P W/GND JE010003MN 2055182550XX1AC PUN SHIELD DIGITAL ET 2155445110XX1AC DEC BUTTON 3 KEY 2255445160XX1AC DEC BUTTON 5 KEY 2355174760XX4AC FOOT RUBBER ROUND 3.0MM 25.0MM JIS 60 Y DIA

36、 2455445360XX4AC FOOT ASSY ROUND 12.5MM 50MM 2555406540XX1AC CPL CABINET CHASSIS MAIN SECC 1.0T 2655171510XX1CON PHONO SCKT RCA-313P 3 PINS 2755179910OO1PR-ROT 100K0 OHM NON-LINEAR RK14K12400BQ 0 0 2855113960XX1CON DIN SCKT SOCKET CONNECTOR SVHS EST-S408J 2955179920OO2PR-ROT 100K0 OHM NON-LINEAR RK1

37、4K12400BR 0 0 3055177570XX1AC PUN SHIELD FENCE TONE 3155134900NR1SWIROT EC16B24204A5 5V 500U0A 10T 3P 0 0 3255191530XX1AC PLASTIC MOLD REFRACTOR B WH 3355178940XX1AC PLASTIC MOLD REFRACTOR E WH 3455178440XX1AC MLD HOLDER FL-GUIDE 3555155930XX1IC-REMOTE RPM6938-RSIP-A3 RECEIVER 38KHZ 3655177960XX1AC

38、NON-METAL DIFFUSER REFLECTOR C WH 3755178930XX1AC PLASTIC MOLD REFRACTOR F WH 3855406440XX1AC CPL CABINET CHASSIS FRONT AVR325/525 3955506280NR1TF-LAM POWER-TRANSFORMER 120V 4055406640XX1AC PUN COVER TRANS BOTTOM AVR325/525 - 4155406840XX1AC PUN BRACKET FAN FRONT AVR325/525 4255509100XX1FAN RDL8025B

39、 C185HS10H1910 ( WIRE:300MM) 0 A0 4355436090XX1CONN-SPE TERMINAL SPKR 6P SH0611708P FE 19MM 6 4455168710XX6AC PUN BRACKET HEATSINK SECIT RT2250(PAV5005) 4555406340XX1AC METAL HEATSINK(AMP) 3CH AVR525 - 4655149520XX7CON DIN SCKT MIX SOCKET RCA-118JP1S 4755436080XX1CON PHONO SCKT RCA 9P W/GNDCAP JW-41

40、09RS 4855178170XX2AC PUN BRACKET FRAME-GUIDE SECC T1.0 4955222020XX2AC PUN BRACKET AC INLET 5055407240XX1AC METAL STANDOFF HEX MF M4X8 6MMOD 111.2H 5155176410XX1AC METAL HEATSINK 17*15*30 AVR525 - 5255222010XX1CON MAINS INLET A/C INLET 7014-NGP 5355206550NR1CONN-SPE AC OUTLET 2P 110V FE 12.75MM 2 BK

41、 0 0 54 55615050 1 EPR TUNER MODULE KST-M1011MW0-62 AVR525 OEM US/ 5555555910XX1AC METAL HEATSINK(MAIN) AVR525 - 56BLANK 5755509110XX1FAN RDL8025B C185HS10H1910 ( WIRE:400MM) 0 A0 5855406940XX1AC PUN BRACKET FAN REAR AVR325/525 5955246370XX1CON PHONO SCKT RCA 1P W/GND JE010003LN OG 6055125440NR1D-LE

42、M TOTX178B RD RND CL 6155191600XX1CON PHONO SCKT RCA 2P W/GNDCAP JW-1502SN OO 6255191420XX2CON PHONO SCKT RCA 4P JW-4104RSA 6355191450XX2CON PHONO SCKT RCA 4P JW-4104RSC 27 A AV VR R525525 harman/kardon 6455405680XX1AC CPL REAR PANEL AVR525 65 55554510 1 AC PLASTIC DUST COVER AVR325/525 6667472300NR

43、1CONN-SPE 87204-6063 SUB D FE 2.77MM 9 - 1630 A1 6755176390XX3CON PHONO SCKT STEREO JACK JW350S 6855176420XX1AC PUN BRACKET BKT GROUND ET 0.5T AVR520 6955176330XX5CON PHONO SCKT RCA 4P JW4104RS GND 7055407040XX4AC METAL STANDOFF HEX MF M4X8 6MMOD 31.9H - 7155426050XX1JACK-TELE SNAP-IN GOLDEN TELECOM

44、 GDL1-8P8C 7255436070NR1CONN-SPE TERMINAL SPKR 8P SH081136JP 7355176400XX1AC METAL HEATSINK REG 118*20*50H 7455407140XX4AC METAL STANDOFF HEX MF M4X8 6MMOD 61.9H - 7555212250XX2CABLE-FIX CLAMP WIRE UL DENNISON 0 0 7655406740XX1AC PUN COVER BOTTOM AVR325/525 - 7755125220XX3AC BUFFER PCB XX55178960XX1

45、AC SPRING PLATE SPRING GND C5212 0.2T S155127070XX72SCREW-ST 3MM 10MM S255127120XX31SCREW-ST 3MM 8MM S355309240XX4SCREW-BM 4MM 10MM S455127090XX8SCREW-ST 4MM 8MM S555127280XX5SCREW-ST 3MM 6MM S655164800XX1SCREW-ST 3MM 8MM S755178320XX35SCREW-ST 3MM 12MM S855231250XX5SCREW 4MM 8MM S955178340XX4SCREW-

46、ST 4MM 10MM SG55135460XX46SCREW-ST 3MM 10MM SF55453660XX8SCREW-ST 5MM 10MM N155309350XX4NUT-HEXAGON 4.0MM 5.0MM CIRCULAR EXTERNAL W155127300XX35WASHER-SPRING 3 W255127310XX14WASHER-FLAT 3 W355168690XX4WASHER-SPRING 4 W455131730XX4WASHER-FLAT 4 W520372500XX3WASHER FIBER 3 X 7.9 X 0.8T 28 A AV VR R525

47、525 harman/kardon AVR525 Electrical Parts List Ref. Designator Part NumberQtyDescription 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 C30520269070301

48、PCCE 100U0F +20% 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 +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 C402130769