Harman-Kardon-HK-3490-Service-Manual(1) 电路图 维修手册.pdf

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1、harman/kardon HK3490 HK3490 STEREO RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 PACKAGING.5 FRONT PANEL CONTROLS.6 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.11 CONNECTIONS/INSTALLATION.14 OPERATION.21 TROUBLESHOOTING GUIDE.26 PROCESSOR RESET.26 DISA

2、SSEMBLY.27 UNIT EXPLODED VIEW.30 EXPLODED VIEW PARTS LIST31 AMP BIAS ADJUSTMENT.32 BLOCK DIAGRAM.33 PCB DRAWINGS34 ELECTRICAL PARTS LIST.40 SEMICONDUCTOR PINOUTS.63 SCHEMATICS.104 WIRING DIAGRAM.108 harman/kardon, Inc. 250 Crossways Park Dr. Released 2008 Woodbury, New York 11797 Rev0 6/2008 Discont

3、inued XXXX 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 with the same

4、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 semiconductor (s

5、olid 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 techniques should b

6、e 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 wear a comm

7、ercially 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 prevent 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 charges sufficient to damage ES device

9、s. 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 leads electrical

10、ly 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 installed. Be sur

11、e 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 carpeted floor can

12、 generate static electricity sufficient to damage an ES devices. CAUTION : HK3490 harman/kardonharman/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 sure th

13、at 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 to the

14、 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 not

15、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 measure th

16、e 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 performedwiththe0.3

17、5voltRMSormoreisexcessiveandindicatesapotentialshockhazardwhichmustbecorrectedbeforereturningthe unittotheowner. HK3490 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 3 29 HK 3490 TECHNICAL SPECIFICATIONS Audio Section Stereo Mode: Continuous Average Power (FTC): 120 Watts per channel, 20Hz 20kH

18、z, 0.07% THD, both channels driven into 8 ohms 150 Watts per channel, 20Hz 20kHz 80dB IF Rejection:100dB Tuner Output Level:1kHz, 100kHz, Dev 500mV AM Tuner Section Frequency Range:520 1720kHz Signal-to-Noise Ratio:40dB Usable Sensitivity:Loop 500V/M Distortion:1kHz, 50% Mod 0.8% Selectivity:10kHz,

19、25dB Video Section Television Format:NTSC/PAL/SECAM Signal Format:Composite Input Level:1Vp-p Input Impedance:75 Ohms, unbalanced Sync Polarity:Negative Output Level:1Vp-p Output Impedance:75 Ohms, unbalanced Video Frequency Response:10Hz 10MHz General Power Requirement:AC 120V/60Hz Power Consumptio

20、n: C307,308,309,310 = HK3390 : 220/63 HK3490 : 470/63 HK3390 USA:T 6.3A L 250V EUR:T 4A L 250V EUR:T 6.3A L 250V USA:T 8A L 250V HK3490 +40V GND AC AC1 ST_5.6V POWER_H SPK1_FL SPK2_FL SPK1_FR SPK2_FR TRIG 1 TRIG 2 DIMMER FROM FRONT : 2mm pitch FROM TRANS : 2mm pitch FROM TRANS : 3.96mm pitchTO TRANS

21、 TO H_PHONE : 2mm pitch FROM INPUT : 1.25mm pitch BN15 TRIG_2 +15V TRIG_1 SUB ON_2 SUB ON_1 SUB_OUT2 SUB_OUT1 SUB_MONO P_DOWN GND SUB ON_2 SUB_MONO SUB ON_1 TONE_L_OUT TONE_R_OUT SPK1 TRIG_1 +15V SUB_MONO SUB ON_1 SUB_OUT1 SUB_OUT2 SUB ON_2 TRIG_2 12060SCMY M/P RED BLK BLU CHGND SPK2 ON OFF ON OFF O

22、N OFF ON OFF MOMS SW 08.02.2308.02.23 C303 470P R303 33K C301 10/50V R319 33K R307 10 R365 10K Q323 KSC2785Y C315 10/50V R351 47(1/4W) R353 47(1/4W) C311 12P C309 100/100V C317 10/50V C305 100/16V C307 100/100V R321 1.2K D305 1SS133M R309 270 R305 470 R313 120 R311 120 R315 1.5K R317 1.5K R329 560 R

23、325 560 R333 560 R323 560 R331 560 R349 3.3(1/4W) R347 3.3(1/4W) R341 22K R339 22K R343 1.2K R345 330 R327 560 R363 1K R361 1.8K R359 1K Q305 KTC3200 Q303 KTC3200 Q301 KTC3200 Q307 KTA1268 Q313 KTA1360Y Q311 KTC3200 Q309 KTA1268 Q315 KTC3423Y Q317 KTC3114A Q319 2SD2401 R360 1K R362 1.8K R364 1K C318

24、 10/50V Q324 KSC2785Y R366 10K Q335 C107M Q336 C107M Q332 KRA107M Q333 KSC2785Y Q334 KSC2785Y Q331 KSA1175Y D309 1SS133M D308 1SS133M 2 4 3 1 D113 600V/8A R110 39K R382 27K R386 1K R393 47 R385 47K R375 10(1W) R381 27K R371 47(1/4W) R373 47(1/4W) R372 47(1/4W) R374 47(1/4W) R392 47 R391 47 D307 1SS1

25、33M R384 1.5K C341 4.7/50V C343 470/10V C334 5600P(M) C332 5600P(M) C342 0.022u C319 0.047u(M) C320 0.047u(M) R376 10(1W) L301 0.5uH L302 0.5uH D117 1N4003S D116 1N4003S D115 1N4003S D114 1N4003 F101 D104 1N4003S R383 47K C331 5600P(M) C333 5600P(M) R112 39K R111 39K R113 39K C116 10000uF/63V R118 1

26、2K(1/4W) R119 12K(1/4W) C117 0.047u C118 0.047u D102 Z33V C104 47/63V R103 1.2K D105 1SS133M D1061SS133M D109 1N4003S D107 1SS133M C113 0.022u R106 82(1/4W) C112 3300/16V C110 0.022u C111 100/16V D301 1SS133M D303 1SS133M GND OUTIN 3 2 1 IC12 L7815 GND OUTIN 3 2 1 IC11 KIA7805 C119 100/25V C120 100/

27、25V Q207 KTC2874B Q208 KTC2874B Q210 KRC107M Q209 KRA107M R234 3.3K R235 3.3K R233 5.6K 21 TH31 C201 100P R205 180K R201100 C202 100P R206 180K R202100 C203 100P R207 180K R203 100 C204 100P R208 180K R204 100 Q337 A107M Q338 A107M 54321 BN73 R109 3.3M D103 Z6.8V Q321 2SB1570 VR31 R377 270(2W) R378

28、270(2W) C115 10000uF/63V Q104 KSC2785Y D110 1N4003S D112 1N4003S D111 1N4003S C114 0.022u R108 10(1W) C108 0.0047 C109 0.1 F102 T 2.5A L 250V 987654321 CN13 R3550.22 X2 D204 1SS133M D203 1SS133M 12 CN15 C335 0.047u(M) C336 0.047u(M) R105 0.47(1W) R107 2.2K Q101C2316Y C106 470/63V C105 0.01uF C103 47

29、/63V C102 0.01uF 21 CN31 C351 100P C313 33P R335 75 R337 75 R338 75 R336 75 C314 33P C352 100P 21 CN32 R356 0.22 X2 VR32 D304 1SS133M D302 1SS133M Q318 KTC3114A Q316 KTC3423Y Q310 KTA1268 Q312 KTC3200 Q314 KTA1360Y Q308 KTA1268 Q302 KTC3200 Q304 KTC3200 Q306 KTC3200 R328 560 R346 330 R344 1.2K R340

30、22K R342 22K R348 3.3(1/4W) R350 3.3(1/4W) R332 560 R324 560 R334 560 R326 560 R330 560 R318 1.5K R316 1.5K R312 120 R314 120 R306 470 R310 270 D306 1SS133M R358 510 C308 100/100V C306 100/16V C310 100/100V C312 12P R354 47(1/4W) R352 47(1/4W) C316 10/50V R308 10 R320 33K C302 10/50V R304 33K C304 4

31、70P R239 1M C107 100/25V R367 22K(1/4W) R368 22K(1/4W) R357 510 R322 1.2K D108 1SS133M R232 10K R231 8.2K(1/4W) C240 1/50V R117 1.8K R115 1.8K R114 1.8K R116 1.8K Q320 2SD2401 Q322 2SB1570 D310 1SS133M Q339 C107M R394 47 Q340 A107M 10 9 8 7 6 5 4 3 2 1 - + - + + - - + JK31 P1 P2 P3 321 CN11 INOUT GN

32、D 32 1 IC13 L7915 1 2 4 3 RY11 P4 P5 T102 Q103 C107M Q102 C107M R104 47K D202 1SS133M D201 1SS133M 321 CN16 OL11 R24010 R24110 24 22 21 10 2 1 JK23 JK21 JK22 ET11 D125 1N4003SR D124 1N4003SR C132 0.47uF/50V R128 2.2K (1/4W) D126 6.2V C133 22/50V R129 10K C134 0.1uF 12 3 VDD VSS OUT IC14 HVIS-80842CN

33、Y-X D127 1SS133M R130 47K 21 CN18 D132 1N4003SR D133 1N4003SR 16 1715 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CN21 SW22 SW21 6 5 42 31 RY33 6 5 42 31 RY32 6 5 42 31 RY31 +VCC1 -VCC1 +VCC2 -VCC2 C123 470P 54321 BN24 JW12 JW11 Q341 C107M Q345 KRC107M Q344 KRA107M 1110987654321 CN23 1110987654321 BN23 R395 47

34、 R396 39K Q343 KRC107M Q342 KRA107M C121 8200uF/35V C122 6800uF/35V C321 0.047u C241 0.1/50V R242 10k(1/4W) D118 Z27V D119 Z27V F_MUTE PROTECT_L F_MUTE PROTECT_L SPK1SPK2 HP_ON HP_IN +VCC -VCC +VCC -VCC +VCC +VCC -VCC +15VA -15VA +15VA -15VA +15VA +15VA HP_ON HP_IN -15VA SPK1 SPK2 -15VA +15VA SPK2 SPK1 +15VA +15VA 107 HK3490 harman/kardonharman/kardon 108