Pioneer-VSX55TXI-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 2003 VSX-55TXi RRV2788 AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-55TXi VSX-53TX THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks VSX-55TXiKUXJI/CAAC120VVSX-53TXKUXJI/CAAC120VFor details, refer to Important symbols for good services. T-ZZK JUNE 2003 printed in JapanRadioFans.CN 收音机爱 好者资料库 VSX-55TXi212341234CDFABE SAFTY 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-55TXi356785678CDFABE CONTENTS SAFTY INFORMATION.21. SPECIFICATIONS.52. EXPLODED VIEWS AND PARTS LIST.62.1 PACKING.62.2 EXTERIOR SECTION .82.3 REAR PANEL SECTION .102.4 HEAT SINK SECTION.122.5 FRONT PANEL SECTION.143. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .163.1 BLOCK DIAGRAM.163.1.1 AUDIO BLOCK DIAGRAM .163.1.2 DSP BLOCK DIAGRAM.183.1.3 1394 BLOCK DIAGRAM .203.1.4 POWER AMP BLOCK DIAGRAM.213.1.5 VIDEO BLOCK DIAGRAM .223.2 OVERALL WIRING DIAGRAM .243.3 7.1 CH I/O, V-AUDIO, FRONT IN and OPTICAL IN ASSYS.263.4 INPUT CONNECT, RS232C and 12V TRIGGER ASSYS .283.5 COAXIAL IN ASSY.303.6 COMPONENT ASSY.323.7 VIDEO ASSY.343.8 MAIN CONTROL ASSY (1/3).363.9 MAIN CONTROL ASSY (2/3).383.10 MAIN CONTROL ASSY (3/3).403.11 MIC & F.OPT IN, MIC AMP and DSP CONNECTION ASSYS.423.12 POWER AMP IN, FAN CONNECTION and FAN DRIVE ASSYS.443.13 DSP ASSY (1/2) .463.14 DSP ASSY (2/2) .483.15 1394 ASSY (1/2) (VSX-55TXi ONLY) .503.16 1394 ASSY (2/2) (VSX-55TXi ONLY) .523.17 DISPLAY ASSY .543.18 VOLUME, MULTI JOG and HEADPHONE ASSYS .56 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-55TXi412341234CDFABE 3.19 POWER AMP-L ASSY.583.20 POWER AMP-R and POWER AMP-C ASSYS.603.21 REGULATOR ASSY.623.22 SP/PS, DIODE, TRANS 2-1 and VH TR ASSYS.643.23 TRANS 2-2, TRANS 1 and PRIMARY ASSYS.663.24 FM/AM TUNER MODULE.684. PCB CONNECTION DIAGRAM .704.1 7.1CH I/O ASSY .714.2 V-AUDIO IN ASSY.734.3 FRONT IN and OPTICAL IN ASSYS.744.4 COAXIAL IN ASSY .754.5 INPUT CONNECT, RS232C and 12V TRIGGER ASSYS.764.6 COMPONENT ASSY.784.7 VIDEO ASSY .794.8 MAIN CONTROL ASSY.804.9 MIC & F. OPT IN, MIC AMP and DSP CONNECTION ASSYS .844.10 POWER AMP IN ASSY.864.11 FAN CONNECTION ASSY .884.12 FAN DRIVE ASSY.894.13 DSP ASSY.904.14 DISPLAY ASSY.924.15 VOLUME, MULTI JOG and HEADPHONE ASSYS.964.16 POWER AMP L and POWER AMP C ASSYS.984.17 POWER AMP R ASSY.1064.18 REGULATOR ASSY.1144.19 SP/PS ASSY.1224.20 DIODE, TRANS 2-1 and VH TR ASSYS.1244.21 TRANS 2-2, TRANS 1 and PRIMARY ASSYS.1264.22 1394 ASSY (VSX-55TXi ONLY).1304.23 FM/AM TUNER MODULE.1315. PCB PARTS LIST .1326. ADJUSTMENT .1457. GENERAL INFORMATION.1467.1 DIAGNOSIS.1467.1.1 PROTECTION CIRCUIT CONTROL SPECIFICATION.1467.1.2 DIAGNOSTICS OF AMPLIFIER SECTION.1487.1.3 TROUBLE SHOOTING.1497.1.4 DISASSEMBLY.1547.2 PARTS.1577.2.1 IC.1577.2.2 DISPLAY.1717.3 CLEANING.1737.4 REMOTE CONTROL UNIT.1747.4.1 EXPLODED VIEWS AND PARTS LIST (VSX-55TXi : AXD7325) .1748. PANEL FACILITIES .175 VSX-55TXi556785678CDFABE 1. SPECIFICATIONSVideo Section (Composite)Input (Sensitivity/Impedance)LINE.1 Vp-p/75 Output (Level/Impedance)LINE.1 Vp-p/75 Frequency ResponseLINE.5 Hz to 10 MHz dB+03Signal-to-Noise Ratio.65 dBFM 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: 73 dB (at 85 dBf)Stereo: 70 dB (at 85 dBf)Distortion.Stereo: 0.5 % (1 kHz)Alternate Channel Selectivity.60 dB (400 kHz)Stereo Separation.40 dB (1 kHz)Frequency Response.30 Hz to 15 kHz ( 1) dBAntenna Input.75 unbalancedAM Tuner SectionFrequency Range.530 kHz to 1,700 kHzSensitivity (IHF, Loop antenna).350 V/mSelectivity.25 dBSignal-to-Noise Ratio.50 dBAntenna.Loop antennaMiscellaneousPower Requirements.AC 120 V, 60 HzPower Consumption.600 WPower Consumption in Standby mode.0.8 WAC Outlet SWITCHED.100 W (0.8 A) MAXDimensions.420 (W) x 188 (H) x 464 (D) mm(16-9/16 (W) x 7-7/16 (H) x 18-5/16 (D) in.)Weight (without package).19.0 kg (41.9 lbs)Furnished PartsFM wire Antenna.1AM loop Antenna.1AA IEC LR6 batteries.4Remote Control Unit.1Microphone for Auto Surround Sound Setup.1Microphone Stand for Auto Surround Sound Setup.1Operating Instructions.1NOTE:Specifications and the design are subject to possible modi-fications without notice, due to improvements.Amplifier SectionContinuous average power output of 100 watts* per channel, min., at 8 ohms, from 20 Hz to 20,000 Hz with no more than 0.09%* total harmonic distortion (front).Continuous Power OutputFront.100 W +100 W (20 Hz 20 kHz, 0.09%, 8 )Center.100 W (20 Hz 20 kHz, 0.09%, 8 )Surround.100 W +100 W (20 Hz 20 kHz, 0.09%, 8 )Surround Back.100 W +100 W (20 Hz 20 kHz, 0.09%, 8 )Audio SectionInput (Sensitivity/Impedance)PHONO MM.4.7 mV/47 kLINE.335 mV/47 kFrequency ResponsePHONO MM.20 Hz to 20,000 Hz 0.3 dBLINE.5 Hz to 100,000 Hz dB+03Output (Level/Impedance)LINE.335 mV/2.2 kTone ControlBASS. 6 dB (100 Hz)TREBLE. 6 dB (10 kHz)LOUDNESS.+4/+2 dB (100Hz/10 kHz)(at volume position -40dB)Signal-to-Noise Ratio (IHF, short circuited, A network)LINE.101 dBSignal-to-Noise Ratio EIA, at 1 W (1 kHz)LINE.83 dB*Measured pursuant to the Federal Trade Commissions Trade Regulation rule on Power Output Claims for Amplifiers.*Measured by Audio Spectrum Analyzer. Video Section (S jack)Input (Sensitivity/Impedance).1 Vp-p/75 Output (Level/Impedance).1 Vp-p/75 Frequency Response.5 Hz to 10 MHz dB+03Signal-to-Noise Ratio.65 dBComponent Video SectionInput (Sensitivity) .1 Vp-p/75 Output (Level/Impedance).1 Vp-p/75 Frequency Response.5 Hz to 40 MHz dB+03 Signal-to-Noise Ratio.65 dB Lucasfilm and THX are trademarks or registered trademarks of Lucasfilm, Ltd. and TM. Surround EX is a jointly developedtechnology of THX and Dolby Laboratories, and is a trademark of Dolby Laboratories. All rights reserved. Used underauthorization. Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, “Surround EX” and double-D symbolare trademarks of Dolby Laboratories. DTS, DTS-ES Extended Surround and Neo:6 are trademarks of Digital Theater Systems, Inc. VSX-55TXi612341234CDFABE 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:867516VSX-55TXi Only31241211141513109AccessoriesAM Loop Antenna(ATB7009)Remote Control Unit(VSX-55TXi : AXD7325)Remote Control Unit(VSX-53TX : AXD7365)Microphone for AutoSurround Sound Setup(APM7004)Microphone Stand for AutoSurround Sound Setup(AEB7269)FM Wire Antenna(ADH7004)AA IEC LR6 batteriesVSX-55TXi OnlyOperating Instructions(VSX-55TXi : ARB7284)(VSX-53TX : ARB7285)AUDIO/VIDEO MULTI-CHANNEL RECEIVERVSX-55TXiOperating InstructionsOFFS0URCETVMULTI CONTROLSYSTEM RECEIVERDVD/LDTV/SATTV CONTVCR1/DVRVCR2VIDEOCDMULTIOPERATIONDIMMERMD/TAPE2CD-R/TAPE1TUNERRECEIVER12LOUDNESSTONE34DNR5SIGNAL SELVIDEO SELHI-BIT6DIRECT ACCESS SEARCH MODE+10DISCENTER7EFFECT/CH SEL89BASS/TREBLE0SYSTEM SETUPTUNER EDITTRACKMENUGUIDETOP MENUREMOTE SETUPMPXAUDIOEXITRETURNENTERTUNINGSTATIONMODESURROUNDCHANNEL14DTV ON/OFFDISP MODETUNING+CHANNEL+STATION837SUB TITLEBANDDTV MENU CLASSTV INPUTTV CONTROLTV CHTV VOLVOLUMEINPUTMIDNIGHTMULTI CHINPUTSTEREO/DIRECTMOVIEMUSICENTERMUTESB CHMODEACOUSTICEQSETUPSOURCEMULTI CONTROLRECEIVERMOVIEMUSICENTERMULTIOPERATIONSURROUNDMODESTEREO/DIRECTSYSTEMOFFACOUSTICEQSB CHMODEINPUTMIDNIGHTCHANNEL+CHANNEL+DTV ON/OFF BANDDIMMERTONELOUDNESSEFFECT/CH SELSIGNAL SELBASS/TREBLEDISCDNRVIDEO SELSUB TITLEREMOTESETUPHI-BITD.ACCESSMPXTV CONTROLCLASSMUTEMENUTOP MENUTUNER EDITGUIDESYSTEMSETUPAUDIORETURNCHANNELVOLUMEINPUTSELECT+10MULTI CHINPUTRECEIVERSTTUNEMASTERVOLUMESTTUNEDVD/LDENTERENTER VCR 2TV/SATCDVCR/DVRTV CONTTUNERRECEIVER VSX-55TXi756785678CDFABE (1) PACKING parts List(2) CONTRAST TABLE VSX-55TXi/KUXJI/CA and VSX-53TX/KUXJI/CA are constructed the same except for the following: Mark No.DescriptionPart No. 1MicrophoneAPM7004 for Auto Surround Sound Setup 2Microphone StandAEB7269 for Auto Surround Sound Setup 3FM Wire AntennaADH7004 4AM Loop AntennaATB7009 5Caution Sheet SP,EARM7056 NSP 6Warranty Card ELARY7007 7Operating Instructions (English) See Contrast table (2) NSP 8Polyetylene BagZ21-038 (0.03*230*340) 9Remote Control UnitSee Contrast table (2) 10Battery CoverSee Contrast table (2) NSP 11AA IEC LR6 batteriesSee Contrast table (2) NSP 12AA IEC LR6 batteriesVEM1023 13Front Pad 45AHA7374 14Rear Pad 45AHA7375 15Packing SheetRHC1023 16Packing CaseSee Contrast table (2) Mark No.DescriptionPart No. MarkNOSymbol and Description VSX-55TXi/KUXJI/CAVSX-53TX/KUXJI/CA7Operating Instructions (English)ARB7284ARB72859Remote Control Unit 45/KUAXD7325Not used9Remote Control Unit 53/KUNot usedAXD736510Battery CoverAZN7896AZA7424NSP11AA IEC LR6 batteriesVEM1023Not used16Packing Case 55KUAHD8199Not used16Packing Case 53KUNot usedAHD8203 VSX-55TXi812341234CDFABE 2.2 EXTERIOR SECTIONVSX-55TXiONLYTSTSLMMLENOPQQPRRDNOKHJIKAJGCHEABCDGBIRefer to 2.5 FRONT PANEL SECTION.Refer to2.4 HEAT SINKSECTION.Refer to2.3 REAR PANELSECTION.VSX-55TXiONLYVSX-53TXONLY3376123856325631306154329292827246126256161615252615252525254501038343426383839112635376152626152616161211618171514165151515251525151522022525255526138525312554054546161616165615561525555615265654565525265524848494729444346412942AHAIAFAEACAGADAJ58SNQRO1352645326595757CONTACT SIDENON-CONTACT SIDE615263(x10)(x4)3652633819F bF a61F a23F b6038556115(VSX-55TXi)(VSX-55TXi)(VSX-53TX)(VSX-53TX)15(VSX-55TXi)15 VSX-55TXi956785678CDFABE (1) EXTERIOR SECTION parts List(2) CONTRAST TABLE VSX-55TXi/KUXJI/CA and VSX-53TX/KUXJI/CA are constructed the same except for the following: Mark No.DescriptionPart No. 1PRIMARY AssyAWX7968 2SP/PS AssySee Contrast table (2) 3DIODE AssyAWX8017