Pioneer-VSX50-avr-sm 维修电路原理图.pdf

ORDER NO.PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2003SOUND MODEINPUT SELECTORMASTERVOLUMEPHONESADVANCEDNEO:6AUTOSTANDBY/ONPULL-OPENDTS2PRO LOGICII2DIGITALDOWNUP VSX-50 RRV2797 AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-50 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).This product is a system(s) component. ModelTypePower RequirementRemarks VSX-50KUXU/CAAC120V ComponentSystemService ManualRemarks DVD RECEIVEREX-500RRV2798 AUDIO/VIDEO MULTI-CHANNEL RECEIVERVSX-50RRV2797This Manual DVD PLAYERDV-50ARRV2740For details, refer to Important symbols for good services. T-ZZK JULY 2003 printed in JapanRadioFans.CN 收音机爱 好者资料库 VSX-50212341234CDFABE SAFETY INFORMATIONThis service manual is intended for qualified service technicians; it is not meant for the casualdo-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have beentrained to properly and safely repair complex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and mayvoid the warranty. If you are not qualified to perform the repair of this product properly and safely, youshould not risk trying to do so and refer the repair to a qualified service technician.WARNINGThis product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California tocause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 Proposition 65NOTICE(FOR CANADIAN MODEL ONLY)Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacementparts must be of identical designation.REMARQUE(POUR MODLE CANADIEN SEULEMENT)Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent queles pices de remplacement doivent avoir la mme dsignation.ANY MEASUREMENTS NOT WITHIN THELIMITS OUTLINED ABOVE ARE INDICATIVEOF A POTENTIAL SHOCK HAZARD ANDMUST BE CORRECTED BEFORE RETURN-ING THE APPLIANCE TO THE CUSTOMER.2. PRODUCT SAFETY NOTICEMany electrical and mechanical parts in the appliancehave special safety related characteristics. These areoften not evident from visual inspection nor theprotection afforded by them necessarily can be obtainedby using replacement components rated for voltage,wattage, etc. Replacement parts which have thesespecial safety characteristics are identified in thisService Manual.Electrical components having such features areidentified by marking with a on the schematics andon the parts list in this Service Manual.The use of a substitute replacement component whichdoes not have the same safety characteristics as thePIONEER recommended replacement one, shown in theparts list in this Service Manual, may create shock, fire,or other hazards.Product Safety is continuously under review and newinstructions are issued from time to time. For the latestinformation, always consult the current PIONEERService Manual. A subscription to, or additional copiesof, PIONEER Service Manual may be obtained at anominal charge from PIONEER.(FOR USA MODEL ONLY)1. SAFETY PRECAUTIONSThe following check should be performed for thecontinued protection of the customer and servicetechnician.LEAKAGE CURRENT CHECKMeasure leakage current to a known earth ground(water pipe, conduit, etc.) by connecting a leakagecurrent tester such as Simpson Model 229-2 orequivalent between the earth ground and all exposedmetal parts of the appliance (input/output terminals,screwheads, metal overlays, control shaft, etc.). Plugthe AC line cord of the appliance directly into a 120VAC 60 Hz outlet and turn the AC power switch on. Anycurrent measured must not exceed 0.5 mA.DeviceundertestLeakagecurrenttesterEarthgroundReading shouldnot be above0.5 mAAlso test withplug reversed(Using AC adapterplug as required)Test allexposed metalsurfacesAC Leakage TestRadioFans.CN 收音机爱 好者资料库 VSX-50356785678CDFABE Important symbols for good services In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.When you find the procedures bearing any of the symbols, be sure to fulfill them:2. AdjustmentsTo keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.3. CleaningFor optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,proper cleaning should be performed to restore their performances. 5. Lubricants, glues, and replacement partsAppropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply theprescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.4. Shipping mode and shipping screwsTo protect the product from damages or failures that may be caused during transit, the shipping mode should be set orthe shipping screws should be installed before shipping out in accordance with this manual, if necessary.1. Product safetyYou should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual. VSX-50412341234CDFABE CONTENTS SAFETY INFORMATION.21. SPECIFICATIONS .52. EXPLODED VIEWS AND PARTS LIST.62.1 PACKING .62.2 EXTERIOR SECTION.82.3 INTERIOR SECTION.102.4 FRONT PANEL SECTION .123. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.143.1 BLOCK DIAGRAM.143.1.1 AUDIO BLOCK .143.1.2 VIDEO AND POWER SUPPLY BLOCKS .163.2 OVERALL WIRING DIAGRAM.183.3 VIDEO ASSY .203.4 AUDIO INPUT ASSY .223.5 MOTHER ASSY (1/5).243.6 MOTHER ASSY (2/5) and DSP KAWA ASSY .263.7 MOTHER ASSY (3/5).283.8 MOTHER ASSY (4/5).303.9 MOTHER ASSY (5/5).323.10 DSP ASSY (1/2).343.11 DSP ASSY (2/2).363.12 FRONT IN and AMP KAWA ASSYS.383.13 6CH AMP ASSY .403.14 AMP OUT ASSY.423.15 ENCODER, FRONT and 1P-SW ASSYS .443.16 PRIMARY, D5V, 12V and VHVL ASSYS.463.17 FM/AM TUNER MODULE.484. PCB CONNECTION DIAGRAM .504.1 FM/AM TUNER MODULE.514.2 AUDIO INPUT and 12V ASSYS.524.3 MOTHER, DSP KAWA and D5V ASSYS.544.4 DSP ASSY.584.5 FRONT IN ASSY.604.6 AMP KAWA ASSY .614.7 6CH AMP ASSY .624.8 AMP OUT ASSY.644.9 ENCODER, FRONT and 1P-SW ASSYS .664.10 PRIMARY ASSY .704.11 VHVL ASSY .714.12 VIDEO ASSYS.724.13 S-VIDEO ASSYS .735. PCB PARTS LIST .746. ADJUSTMENT .806.1 TUNER SECTION.807. GENERAL INFORMATION.817.1 DIAGNOSIS.817.1.1 Test Mode .817.1.2 Protection Circuit .827.1.3 Specifications of Speaker Detection.837.1.4 Circuit Description .847.1.5 Troubleshooting.857.1.6 Timing Chart.877.2 PARTS.917.2.1 IC.917.2.2 DISPLAY.977.3 CLEANING.988. PANEL FACILITIES .99 VSX-50556785678CDFABE 1. SPECIFICATIONSAmplifier sectionContinuous average power output of 42 watts* per channel, min., at 6 ohms, from 20 Hz to 20,000 Hz with no more than 0.9 %* total harmonic distortion (front).Continuous Power Output (STEREO mode)Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 W + 42 W(FTC 2020 kHz, THD 0.9 %, 6 )RMS Power OutputFront. . . . . . . . . . . . . . . . . .100 W/ch (1 kHz, THD 10 %, 6 )Center . . . . . . . . . . . . . . . . . .100 W ( 1 kHz, THD 10 %, 6 )Surround. . . . . . . . . . . . . .100 W/ch ( 1 kHz, THD 10 %, 6 )Surround back . . . . . . . . . . . 100 W ( 1 kHz, THD 10 %, 6 )Audio sectionInput (Sensitivity/Impedance). . . . . . . . . . . . . . .200 mV/47 kOutput (Level/Impedance)DVR/VCR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200 mV/2.2 k*Measured pursuant to the Federal Trade Commissions Trade Regulation rule on Power Output Claims for Amplifiers.*Measured by Audio Spectrum Analyzer.Video sectionInput (Sensitivity/Impedance). . . . . . . . . . . . . . . .1 Vp-p/75 Output (Level/Impedance). . . . . . . . . . . . . . . . . . 1 Vp-p/75 FM tuner sectionFrequency Range . . . . . . . . . . . . . . . . 87.5 MHz to 108 MHzUsable Sensitivity. . . . . . .Mono:13.2 dBf, IHF (1.3 V/ 75 )50 dB Quieting Sensitivity . . . . . . . . . . . . . . .Mono: 20.2 dBfStereo: 38.6 dBfSignal-to-Noise Ratio. . . . . . . . . . . .Mono: 76 dB (at 85 dBf)Stereo: 72 dB (at 85 dBf)Distortion. . . . . . . . . . . . . . . . . . . . . . . Stereo: 0.6 % (1 kHz)Alternate Channel Selectivity . . . . . . . . . . . 60 dB (400 kHz)Stereo Separation. . . . . . . . . . . . . . . . . . . . . . 40 dB (1 kHz)Frequency Response . . . . . . . . . . . 30 Hz to 15 kHz (1dB)Antenna Input (DIN). . . . . . . . . . . . . . . . . .75 unbalancedAM tuner sectionFrequency Range . . . . . 530 kHz to 1,700 kHz (10 kHz step)Sensitivity (IHF, Loop antenna). . . . . . . . . . . . . . . .350 V/mSelectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 dBSignal-to-Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . .50 dBAntenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Loop antennaMiscellaneousPower Requirements . . . . . . . . . . . . . . . . . . AC 120 V, 60 HzPower Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . 170 W In standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 WDimensions. . . . . . . . 16 /16 (W) x 2 /16 (H) x 15 /8 (D) in.9131Weight (without package) . . . . . . . . . . . . . . . . . . . . . . .15 lb. Furnished partsMicrophone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Microphone stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Coaxial cable (black). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Video cable (yellow). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Audio cable (black). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Stereo audio cable (red/white). . . . . . . . . . . . . . . . . . . . . . . 1SR mini-plug cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1SR+ mini-plug cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1AM loop antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1FM wire antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Power cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Dry cell batteries (AA size IEC R6P) . . . . . . . . . . . . . . . . . . 2Remote control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Quick Setup Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Speaker cable labels. . . . . . . . . . . . . . . . . . . . . . . . . .1 sheetWarranty card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Note Specifications and the design are subject to possible modifications without notice, due to improvements.Manufactured under license from Dolby Laboratories.Dolby, Pro Logic, Surround EX and the double-Dsymbol are trademarks of Dolby Laboratories.DTS, DTS-ES Extended Surround, Neo:6 and DTS 96/24 are trademarks of Digital Theater Systems, Inc.FRONTFRONTFRONTFRONTCENTERRRRRLLLLCENTERSURROUNDSURROUNDSURROUNDSURROUNDSURROUNDBACKSURROUNDBACKAccessories Remote Control Unit(AXD7363) Power Cable(ADG7021) Microphone(APM7004) Microphone stand(AEB7313) SR+ mini-plug cable(ADE7095) SR mini-plug cable(PDE1297) FM wire antenna(ADH7004) AM loop antenna(ATB7009) Coaxial cable (black)Audio cable (black)(ADE7087) Video cable (yellow)(VDE1055) Stereo audio cable (red/white)(VDE1054) Speaker cable labels(ARW7232) Dry Cell Battery (AA size IEC R6P)(VEM1030)DVD RECEIVERSOURCERECEIVERSYSTEM OFFOPEN/CLOSERECEIVERSLEEPDVDTV/SATDVR/VCRFM/AMSIGNALINPUTSURROUNDADV ANCEDSURROUNDSOUNDMODESBch MODEDISPLAYDIALOGAUTOSTEREOSUBTITLEANGLEPLAY MODEAUDIOMUTEMASTERVOLUMEDTV MENUTOP MENUT.EDITMENURETURNMCACCSETUPHOMEMENUTUNETUNESTSTRECEIVERSETUPBANDDTV ON/OFFDISPLAY / +10CL ASSMPXD.ACCESSENTERENTERCLEARCH SELECTGUIDETEST TONETV CONTROLCHANNELZOOMSURROUNDDIMMERCHANNELVOL UMEINPUT VSX-50612341234CDFABE 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKINGParts marked by NSP are generally unavailable because they are not in our Master Spare Parts List.The mark found on some component parts indicates the importance of the safety factor of the part.Therefore, when replacing, be sure to use parts of identical designation.Screws adjacent to mark on product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual.(In the case of no amount instructions, apply as you think it appropriate.)NOTES:1465131715111819161224312424232726272424252092221 VSX-50756785678CDFABE PACKING parts List Mark No.DescriptionPart No. 1FM Wire AntennaADH7004 2AM Loop AntennaATB7009 3Power CableADG7021 4Speaker Cable LabelARW7232 5Operating instructionsARB7288 (English) 6Quick Setup GuideARH7079 (English) 7 8 NSP 9Polyethylene Bag (A4x2)AHG7097 10 11Remote Control UnitAXD7363 12Battery CoverAZA7424 NSP 13Dry cell batteries (R6P,AA)VEM1030 NSP 14Warranty CardARY7007 15Left Pad 301AHA7407 16Right Pad 301AHA7408 17SpacerAHB7088 18Packing SheetAHG7015 19Packing CaseAHD8169 20SR+ mini-plug cableADE7095 21Microphone standAEB7313 22MicrophoneAPM7004 23Coaxial CableADE7087 24Audio cableADE7087 25SR mini-plug cablePDE1297 26Stereo audio cableVDE1054 27Video cableVDE1055 VSX-50812341234CDFABE 2.2 EXTERIOR SECTIONCONTACT SIDENON-CONTACT SIDERefer to2.4 FRONT PANEL SECTION.Refer to2.3 INTERIOR SECTION.AAIRO1818181851217618101231718191818918188311824*Serial Number Label is put on bottom of Under Base.B25A302829261321221422201515162214223202018162020222220222202020427 VSX-50956785678CDFABE EXTERIOR SECTION parts List Mark No.DescriptionPart No. 1FM/AM TUNER MODULEAXQ7245 26CH AMP AssyAWM7786 3D5V AssyAWX8224 NSP 4AMP MODULE 6CHAXQ7247 5Bonnet CaseAZN7934 6LabelARW7223 7 8Fan CoverAMR7446 9Rear Panel 501SKUANC8163 10Tuner BarrierAEC7383 11 12AC Inlet AssyVKP2126 13DC Fan MotorAXM7025 14Fan PlateANG7462 15FET Bracket AANG7418 NSP 16Heat SinkANH7161 17ScrewBCZ40P060FNI 18ScrewBBZ30P080FZK 19ScrewPPZ30P100FZK 20ScrewBBZ30P060FMC 21ScrewBBZ30P300FZK 22ScrewBBZ30P140FMC 23J1905 13P FFC/60VADD7402 NSP 24LabelVRW1629 25VIDEO AssyAWX8248 NSP 26PCB SpacerAEC7156 NSP 27Energy Star LabelAAX7876 28J1911 19P FFC/60VADD7422 NSP 29BinderZCA-BK1 30S-VIDEO AssyAWX8185 31SP Terminal LabelARW7229 VSX-501012341234CDFABE 2.3 INTERIOR SECTIONCONTACT SIDENON-CONTACT SIDEBMMILHBCDALAFFDNNEECIHFCJHQDNE12131313153431131431223331183131336323228731173116312331893131103029272619253131243131P