Pioneer-VSX56TXI-avr-sm 维修电路原理图.pdf

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1、 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, Si

2、ngapore 159936 PIONEER CORPORATION 2004 VSX-56TXi RRV2990 AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-56TXi VSX-54TX THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks VSX-56TXiKUXJ/CAAC120VVSX-54TXKUXJ/CAAC120VFor details, refer to Important symbols for go

3、od services. T-ZZV JULY 2004 printed in JapanRadioFans.CN 收音机爱 好者资料库 VSX-56TXi212341234CDFABE 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 hav

4、e 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,

5、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 Co

6、de 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 (fusibl

7、e 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 a

8、nd 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 s

9、afety 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 theP

10、IONEER 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 subs

11、cription 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

12、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

13、 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 Leakag

14、e TestRadioFans.CN 收音机爱 好者资料库 VSX-56TXi356785678CDFABE 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

15、 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

16、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 fai

17、lures 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 fro

18、m 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, a

19、nd other regulations), and should keep the safety during servicing by following the safety instructions described in this manual. VSX-56TXi412341234CDFABE CONTENTS SAFTY INFORMATION .21. SPECIFICATIONS .62. EXPLODED VIEWS AND PARTS LIST.82.1 PACKING .82.2 EXTERIOR SECTION.102.3 CHASSIS SECTION .122.

20、4 REAR PANEL SECTION.142.5 HEAT SINK SECTION.162.6 FRONT PANEL SECTION .183. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.203.1 BLOCK DIAGRAM.203.1.1 AUDIO BLOCK DIAGRAM.203.1.2 DSP BLOCK DIAGRAM .223.1.3 1394 BLOCK DIAGRAM.243.1.4 POWER AMP BLOCK DIAGRAM.253.1.5 VIDEO BLOCK DIAGRAM.263.2 OVERALL WIRING DIAG

21、RAM.283.3 7.1 CH I/O, V-AUDIO IN, FRONT IN and OPTICAL IN ASSYS .303.4 INPUT CONNECT and 12V TRIGGER ASSYS.323.5 COAXIAL IN ASSY .343.6 COMPONENT ASSY.363.7 VIDEO ASSY .383.8 MAIN CONTROL ASSY (1/3).403.9 MAIN CONTROL ASSY (2/3).423.10 MAIN CONTROL ASSY (3/3).443.11 MIC & F.OPT IN, MIC AMP and DSP C

22、ONNECTION ASSYS .463.12 POWER AMP IN, FAN CONNECTION and FAN DRIVE ASSYS.483.13 DSP ASSY (1/2).503.14 DSP ASSY (2/2).523.15 1394 ASSY (1/2) (VSX-56TXi ONLY).543.16 1394 ASSY (2/2) (VSX-56TXi ONLY).563.17 DISPLAY ASSY.583.18 VOLUME, MULTI JOG and HEADPHONE ASSYS.603.19 POWER AMP-L ASSY.623.20 POWER A

23、MP-R and POWER AMP-C ASSYS.643.21 REGULATOR ASSY.663.22 SP/PS, DIODE, TRANS 2-1 and VH TR ASSYS.683.23 TRANS 2-2, TRANS 1 and PRIMARY ASSYS.703.24 VIDEO CONVERT ASSY.724. PCB CONNECTION DIAGRAM .744.1 7.1CH I/O ASSY .754.2 V-AUDIO IN ASSY.764.3 FRONT IN and OPTICAL IN ASSYS.774.4 COAXIAL IN ASSY .78

24、4.5 INPUT CONNECT and 12V TRIGGER ASSYS.794.6 COMPONENT ASSY.814.7 VIDEO ASSY .824.8 MAIN CONTROL ASSY.844.9 MIC & F. OPT IN, MIC AMP and DSP CONNECTION ASSYS .884.10 POWER AMP IN ASSY.904.11 FAN CONNECTION ASSY .914.12 FAN DRIVE ASSY.924.13 DSP ASSY.934.14 1394 ASSY (VSX-56TXi ONLY).954.15 DISPLAY

25、ASSY.964.16 VOLUME, MULTI JOG and HEADPHONE ASSYS.984.17 POWER AMP L and POWER AMP C ASSYS.1004.18 POWER AMP R ASSY.1044.19 REGULATOR ASSY.1084.20 SP/PS ASSY.1124.21 DIODE, TRANS 2-1 and VH TR ASSYS.1144.22 TRANS 2-2, TRANS 1 and PRIMARY ASSYS.1164.23 VIDEO CONVERT ASSY.1185. PCB PARTS LIST .1196. A

26、DJUSTMENT .131 VSX-56TXi556785678CDFABE 7. GENERAL INFORMATION .1327.1 DIAGNOSIS.1327.1.1 PROTECTION CIRCUIT CONTROL SPECIFICATION.1327.1.2 DIAGNOSTICS OF AMPLIFIER SECTION.1347.1.3 TROUBLE SHOOTING.1357.1.4 OUTLINE OF THE 1394 UNIT .1407.1.5 DISASSEMBLY .1427.2 PARTS .1477.2.1 IC.1477.2.2 DISPLAY .

27、1717.3 CLEANING .1737.4 REMOTE CONTROL UNIT.1747.4.1 EXPLODED VIEWS AND PARTS LIST (VSX-56TXi : AXD7325) .1748. PANEL FACILITIES .175 VSX-56TXi612341234CDFABE 1. SPECIFICATIONSFM Tuner SectionFrequency Range.87.5 MHz to 108 MHzUsable Sensitivity.Mono: 13.2 dBf, IHF (1.3 V/75 )50 dB Quieting Sensitiv

28、ity.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 SectionFre

29、quency 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)

30、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)(56TXi).20.3 kg (44.81b)(54TX).18.0 kg (39.71b)Furnished PartsFM wire Antenna.AM loop Antenna.AA IEC LR6 batteries(56TXi).(54TX).Remote Control Unit.Microphone for Auto Surround Sound Setup.Microphone Stand for

31、 Auto Surround Sound Setup.Operating Instructions.NOTE:Specifications and the design are subject to possible modi-fications without notice, due to improvements.Amplifier SectionContinuous average power output of 110 watts* per channel, min., at 8 ohms, from 20 Hz to 20,000 Hz with no more than 0.09%

32、* total harmonic distortion (front).Continuous Power OutputFront.110 W +110 W (20 Hz 20 kHz, 0.09%, 8 )Center.110 W (20 Hz 20 kHz, 0.09%, 8 )Surround.110 W +110 W (20 Hz 20 kHz, 0.09%, 8 )Surround Back.110 W +110 W (20 Hz 20 kHz, 0.09%, 8 )Audio SectionInput (Sensitivity/Impedance)PHONO MM (Except 5

33、4TX).4.7 mV/47 kLINE.335 mV/47 kFrequency ResponsePHONO MM (Except 54TX).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

34、(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. Composite Video/S-Video SectionInput (Sensitivity/Imped

35、ance).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 100 MHz dB+03 Signal-to-Noise Ratio.65 dB Lucasfilm and THX are tra

36、demarks 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”, “S

37、urround EX” and double-D symbolare trademarks of Dolby Laboratories. DTS, DTS-ES Extended Surround and Neo:6 are trademarks of Digital Theater Systems, Inc.1111421Power Cord(56TXi Only).11 VSX-56TXi756785678CDFABEAccessoriesAM Loop Antenna(ATB7013)Remote Control Unit(VSX-56TXi : AXD7325)Remote Contr

38、ol Unit(VSX-54TX : AXD7365)Microphone for AutoSurround Sound Setup(APM7004)Microphone Stand for AutoSurround Sound Setup(AEB7269)FM Wire Antenna(ADH7030)AA IEC LR6 batteriesVSX-56TXi OnlyOperating Instructions(VSX-56TXi : ARB7307)(VSX-54TX : ARB7309)OFFS0URCETVMULTI CONTROLSYSTEM RECEIVERDVD/LDTV/SA

39、TTV CONTVCR1/DVRVCR2VIDEOCDMULTIOPERATIONDIMMERMD/TAPE2CD-R/TAPE1TUNERRECEIVER12LOUDNESSTONE34DNR5SIGNAL SELVIDEO SELHI-BIT6DIRECT ACCESS SEARCH MODE+10DISCENTER7EFFECT/CH SEL89BASS/TREBLE0SYSTEM SETUPTUNER EDITTRACKMENUGUIDETOP MENUREMOTE SETUPMPXAUDIOEXITRETURNENTERTUNINGSTATIONMODESURROUNDCHANNEL

40、14DTV ON/OFFDISP MODETUNING+CHANNEL+STATION837SUB TITLEBANDDTV MENU CLASSTV INPUTTV CONTROLTV CHTV VOLVOLUMEINPUTMIDNIGHTMULTI CHINPUTSTEREO/DIRECTMOVIEMUSICENTERMUTESB CHMODEACOUSTICEQSETUPSOURCEMULTI CONTROLRECEIVERMOVIEMUSICENTERMULTIOPERATIONSURROUNDMODESTEREO/DIRECTSYSTEMOFFACOUSTICEQSB CHMODEI

41、NPUTMIDNIGHTCHANNEL+CHANNEL+DTV ON/OFF BANDDIMMERTONELOUDNESSEFFECT/CH SELSIGNAL SELBASS/TREBLEDISCDNRVIDEO SELSUB TITLEREMOTESETUPHI-BITD.ACCESSMPXTV CONTROLCLASSMUTEMENUTOP MENUTUNER EDITGUIDESYSTEMSETUPAUDIORETURNCHANNELVOLUMEINPUTSELECT+10MULTI CHINPUTRECEIVERSTTUNEMASTERVOLUMESTTUNEDVD/LDENTERE

42、NTER VCR 2TV/SATCDVCR/DVRTV CONTTUNERRECEIVERPower Cord(VSX-56TXi : ADG7061) VSX-56TXi812341234CDFABE 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 imp

43、ortance 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,

44、 apply as you think it appropriate.)NOTES:12109111621VSX-56TXi Only5348151314768VSX-56TXiOnly VSX-56TXi956785678CDFABE (1) PACKING parts List(2) CONTRAST TABLE VSX-56TXi/KUXJ/CA and VSX-54TX/KUXJ/CA are constructed the same except for the following: Mark No.DescriptionPart No. 1Power CordSee Contras

45、t table (2) 2FM Wire AntennaADH7030 3AM Loop AntennaATB7013 4Microphone for AutoAPM7004 Surround Sound Setup 5Microphone Stand for AutoAEB7269 Surround Sound Setup 6Remote Control UnitSee Contrast table (2) 7Battery CoverSee Contrast table (2) NSP 8Dry Cell Battery (AA/LR6)VEM1023 9Operating Instruc

46、tionsSee Contrast table (2) (English) 10Caution Sheet SP, EARM7056 NSP 11Warranty CardARY7007 NSP 12Polyethylene BagAHG7117 13Packing SheetRHC1023 14Front Pad 45AHA7374 15Rear Pad 45AHA7375 16Packing CaseSee Contrast table (2) Mark No.DescriptionPart No. MarkNo.Symbol and Description VSX-56TXi/KUXJ/

47、CAVSX-54TX/KUXJ/CA 1Power CordADG7061Not used6Remote Control UnitAXD7325AXD73657Battery CoverAZN7896AZA74249Operating Instructions (English)ARB7307ARB730916 Packing Case 56KUAHD8272Not used16 Packing Case 54KUNot usedAHD8276 VSX-56TXi1012341234CDFABE 2.2 EXTERIOR SECTIONCONTACT SIDENON-CONTACT SIDER

48、efer to2.6 FRONT PANEL SECTION.Refer to2.3 CHASSIS SECTION.VSX-54TXOnlyVSX-56TXiOnly(for VSX-54TX)(for VSX-56TXi)(for VSX-56TXi)182020201202320262335 (2)5 (10)5 (2)20191921152121191110191919191913141916981919191719192215Screw Cover(Accessory of Panel Base 56B)1921211919191974412122424 VSX-56TXi11567

49、85678CDFABE (1) EXTERIOR SECTION parts List(2) CONTRAST TABLE VSX-56TXi/KUXJ/CA and VSX-54TX/KUXJ/CA are constructed the same except for the following: Mark No.DescriptionPart No. 1Bonnet Case 56BAZN7992 2Spacer 45A (3.5 x 10 x 27)AEB7263 3Spacer 45B (6 x 7 x 13)AEB7264 4CushionSee Contrast table (2

50、) 5Spacer Circle (10 x 5)AEC7330 6Spacer Circle (CLEAR)AEC7531 7Bottom Plate 56See Contrast table (2) 8Left Beam 45ANG7401 9Stabilizer 45ANG7408 10Bridge Frame 45FANG7409 11Bridge Frame 45RANG7410 12InsulatorSee Contrast table (2) 13Screw Cover 45ASee Contrast table (2) 14Push RivetSee Contrast tabl