Pioneer-VSXLX70-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, Sin

2、gapore 159936 PIONEER CORPORATION 2007VSX-LX70MASTERVOLUMESTANDBY/ONINPUTSELECTORPHASECONTROLPHASECONTROLAUTO SURR/STREAM DIRECTMCACCPOSITIONADVANCEDMCACCDIGITAL VIDEOHDMISCALERDIGITAL PRECISIONPROCESSINGHOMETHXSTANDARDSURROUNDADVANCEDSURROUNDVSX-LX70RRV3653AUDIO/VIDEO MULTI-CHANNEL RECEIVERVSX-LX70

3、VSX-LX60THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).*:Alter the wiring of the power-supply block at the primary winding of Power transformer referring to the Line Voltage Selection described in this Service Manual (“11.18 TRANS1 and PRIMARY ASSYS”).ModelTypePower RequirementThe v

4、oltage can be converted by the following method.VSX-LX70HYXJ5AC 220 V to 230 VAC240V,*VSX-LX60HYXJ5AC 220 V to 230 VAC240V,*For details, refer to Important Check Points for good servicing. T-FZV AUG. 2007 printed in JapanRadioFans.CN 收音机爱 好者资料库VSX-LX70212341234CDFABESAFETY INFORMATIONThis service ma

5、nual is intended for qualified service technicians ; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.Improperly performed repa

6、irs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.RadioFans.CN 收音机爱 好者资料库VSX-LX70

7、356785678CDFABEImportant Check Points for Good ServicingIn this manual, procedures that must be performed during repairs are marked with the below symbol.Please be sure to confirm and follow these procedures.1. Product safetyPlease conform to product regulations (such as safety and radiation regulat

8、ions), and maintain a safe servicing environment by following the safety instructions described in this manual.1 Use specified parts for repair.Use genuine parts. Be sure to use important parts for safety.2 Do not perform modifications without proper instructions.Please follow the specified safety m

9、ethods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise.3 Make sure the soldering of repaired locations is properly performed.When you solder while repairing, please be sure that there are no cold solder and other debris.Sol

10、dering should be finished with the proper quantity. (Refer to the example)4 Make sure the screws are tightly fastened.Please be sure that all screws are fastened, and that there are no loose screws.5 Make sure each connectors are correctly inserted.Please be sure that all connectors are inserted, an

11、d that there are no imperfect insertion.6 Make sure the wiring cables are set to their original state.Please replace the wiring and cables to the original state after repairs.In addition, be sure that there are no pinched wires, etc.7 Make sure screws and soldering scraps do not remain inside the pr

12、oduct.Please check that neither solder debris nor screws remain inside the product.8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.Damaged power cords may lead to fire accidents, so please be sure that there are no damages.If you find a damaged power

13、 cord, please exchange it with a suitable one.9 There should be no spark traces or similar marks on the power plug.When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if

14、 necessary.a Safe environment should be secured during servicing.When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely. 2. AdjustmentsTo keep the original per

15、formance of the products, optimum adjustments and confirmation of characteristics within specification.Adjustments should be performed in accordance with the procedures/instructions described in this manual.4. CleaningFor parts that require cleaning, such as optical pickups, tape deck heads, lenses

16、and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.3. Lubricants, Glues, and Replacement partsUse grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.5. Shipping mode and Shipping screwsTo prot

17、ect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.VSX-LX70412341234CDFABECONTENTS SAFETY INFORMATION. 21. SERVICE PRECAUTI

18、ONS. 61.1 NOTES ON SOLDERING. 62. SPECIFICATIONS. 72.1 ACCESSORIES. 72.2 SPECIFICATIONS . 82.3 PANEL FACILITIES. 93. BASIC ITEMS FOR SERVICE. 153.1 CHECK POINTS AFTER SERVICING. 153.2 PCB LOCATIONS. 163.3 JIGS LIST . 184. BLOCK DIAGRAM. 204.1 OVERALL WIRING DIAGRAM . 204.2 AUDIO BLOCK DIAGRAM. 224.3

19、 COMPOSITE V BLOCK DIAGRAM. 244.4 S-VIDEO BLOCK DIAGRAM . 254.5 COMPONENT & VOL BLOCK DIAGRAM. 264.6 DSP BLOCK DIAGRAM. 274.7 HDMI & DLNA BLOCK DIAGRAM (VSX-LX70). 284.8 HDMI & DVC BLOCK DIAGRAM. 294.9 MICROCOMPUTER BLOCK DIAGRAM. 305. DIAGNOSIS. 315.1 DIAGNOSIS FLOWCHART . 315.2 CIRCUIT DESCRIPTION

20、. 736. SERVICE MODE. 756.1 SERVICE MODE. 757. DISASSEMBLY . 808. EACH SETTING AND ADJUSTMENT . 878.1 ADJUSTMENT. 878.2 HOW TO UPDATE THE DSP FLASH ROM BY PLAYING BACK A CD. 878.3 HOW TO UPDATE THE FLASH ROMS FOR VARIOUS MICROCOMPUTERS. 909. EXPLODED VIEWS AND PARTS LIST. 929.1 PACKING. 929.2 EXTERIO

21、R SECTION. 949.3 CHASSIS SECTION . 969.4 REAR PANEL SECTION. 989.5 POWER AMP SECTION. 1009.6 FRONT PANEL SECTION. 10210. SCHEMATIC DIAGRAM. 10410.1 AUDIO & MULTI CH IN ASSY . 10410.2 V-AUDIO ASSY. 10610.3 FRONT-IN and HEADPHONE ASSYS . 10810.4 BRIDGE1, BRIDGE2, TRANS SIDE and BRIDGE3 ASSYS.11010.5 C

22、OMPOSITE V ASSY .11210.6 S-VIDEO ASSY.11410.7 COMPONENT & VOL ASSY (1/4).11610.8 COMPONENT & VOL ASSY (2/4).11810.9 COMPONENT & VOL ASSY (3/4). 12010.10 COMPONENT & VOL ASSY (4/4). 12210.11 DIGITAL MOTHER ASSY (1/7). 12410.12 DIGITAL MOTHER ASSY (2/7). 12610.13 DIGITAL MOTHER ASSY (3/7). 12810.14 DI

23、GITAL MOTHER ASSY (4/7). 13010.15 DIGITAL MOTHER ASSY (5/7). 13210.16 DIGITAL MOTHER ASSY (6/7). 13410.17 DIGITAL MOTHER ASSY (7/7). 13610.18 DSP ASSY (1/3). 13810.19 DSP ASSY (2/3). 14010.20 DSP ASSY (3/3). 14210.21 INTERFACE ASSY (1/2). 14410.22 INTERFACE ASSY (2/2). 14610.23 POWER AMP IN and POWE

24、R PROTECT ASSYS . 14810.24 POWER AMP L ASSY. 15010.25 POWER AMP R ASSY . 15210.26 LOCAL SUPPLY and DC/DC ASSYS. 154VSX-LX70556785678CDFABE10.27 TRANS2-1, VH-TR, DIODE and SP/PS ASSYS .15610.28 TRANS2-2,TRANS1 and PRIMARY ASSYS.15810.29 VOLUME, DISPLAY, POWER SW and INPUT SELECT ASSYS.16010.30 PREOUT

25、 & CONTROL ASSY.16210.31 HDMI & DLNA ASSY (1/4) (VSX-LX70) .16410.32 HDMI & DLNA ASSY (2/4) (VSX-LX70) .16610.33 HDMI & DLNA ASSY (3/4) (VSX-LX70) .16810.34 HDMI & DLNA ASSY (4/4) (VSX-LX70) .17010.35 HDMI & DVC ASSY (1/3) (VSX-LX60) .17210.36 HDMI & DVC ASSY (2/3) (VSX-LX60) .17410.37 HDMI & DVC AS

26、SY (3/3) (VSX-LX60) .17610.38 USB ASSY (VSX-LX60).17810.39 HDMI POWER, HDMI TRANS and HDMI DIODE ASSYS.18011. PCB CONNECTION DIAGRAM.18111.1 AUDIO & MULTI CH IN ASSY .18211.2 V-AUDIO and HEADPHONE ASSYS .18311.3 FRONT-IN ASSY .18411.4 BRIDGE1 and BRIDGE2 ASSYS .18511.5 TRANS SIDE and BRIDGE3 ASSYS.1

27、8611.6 COMPOSITE V ASSY .18811.7 S-VIDEO ASSY.18911.8 COMPONENT & VOL ASSY .19011.9 DIGITAL MOTHER ASSY.19411.10 DSP ASSY.19811.11 INTERFACE ASSY .20211.12 POWER AMP IN ASSY .20611.13 POWER PROTECT ASSY.20711.14 POWER AMP L and POWER AMP R ASSYS.20811.15 LOCAL SUPPLY and DC/DC ASSYS.21211.16 TRANS2-

28、1, VH-TR, DIODE and TRANS2-2 ASSYS.21411.17 SP/PS ASSY.21611.18 TRANS1 and PRIMARY ASSYS .21811.19 POWER SW, VOLUME, DISPLAY and INPUT SELECT ASSYS.22011.20 PREOUT & CONTROL ASSY .22411.21 FR BARRIER 1 ASSY.22511.22 HDMI POWER, HDMI TRANS and HDMI DIODE ASSYS.22611.23 HDMI & DLNA ASSY (VSX-LX70).228

29、11.24 HDMI & DVC ASSY (VSX-LX60).23211.25 USB ASSY (VSX-LX60).23612. PCB PARTS LIST.237VSX-LX70612341234CDFABE1. SERVICE PRECAUTIONS1.1 NOTES ON SOLDERING For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a

30、soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering. Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C. Therefore, for lead-free soldering, the tip temperature of a

31、 soldering iron must be set to around 373 C in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.Do NOT use a soldering iron whose tip temperature cannot be controlled.Compared with eutectic s

32、olders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.VS

33、X-LX70756785678CDFABE2. SPECIFICATIONS2.1 ACCESSORIESAM Loop Antenna(ATB7013)Remote Control Unit(VSX-LX70 : AXD7505)(VSX-LX60 : AXD7502)Setup Microphone (for Auto MCACC setup)(APM7008)FM Wire Antenna(ADH7030)AC Power Cord(ADG7062)AA/IEC R6P Dry Cell Batteries (VEM1031)SLEEPCLEAR+10SR+ANALOG ATTDISCD

34、IMMERCLASSD.ACCESSRECEIVERSOURCESYSTEM OFFINPUTSELECTENTERTV CONTROLSHIFTVOLDVDTVBDTV CTRLDVR1TUNETUNESTSTSTATUSMCACCS.DIRECTMULTI OPESIGNAL SELT.DISPSBchSTEREO/F.S.SURRJUKEBOXTV CHINPUTSELECTMPXAUDIOSUBTITLEADV.SURRSTANDARDPHASETHXINFOMUTERECTV VOLi PodTUNERRECEIVERENTERREC STOPHDDCHCHDVDA PARAMETE

35、RTOP MENU V PARAMETERMENU T.EDITBANDPROGRAM GUIDERETURNSETUPPTY SEARCHCDDVR2HOME MEDIAGALLERYCD-RZONE2/3DISPRECEIVERPHOTOTV/DTVCHLEVELGENREHDMIEONABCDEVSX-LX70812341234CDFABE2.2 SPECIFICATIONSManufactured under license from Dolby Laboratories. “Dolby”,“Pro Logic”, “Surround EX”, and the double-D sym

36、bol aretrademarks of Dolby Laboratories.“DTS” is a registered trademark of DTS, Inc. and “DTS-HDMaster Audio” is a trademark of DTS, Inc.THX and the THX logo are trademarks of THX Ltd. which may be registered in some jurisdictions. All rights reserved.Amplifier SectionContinuous Power Output (Stereo

37、)Front. 180 W + 180 W (LX70), 170 W + 170 W (LX60)(DIN 1 kHz, THD 1 %, 6 )Front. 150 W + 150 W (LX70), 140 W + 140 W (LX60)(DIN 1 kHz, THD 1 %, 8 )Continuous Power Output (Multichannel) (DIN 1 kHz, THD 1 %, 6 )Front. 180 W + 180 W (LX70), 170 W + 170 W (LX60)Center. 180 W (LX70), 170 W (LX60)Surroun

38、d.180 W + 180 W (LX70)170 W + 170 W (LX60)Surround back.180 W + 180 W (LX70)170 W + 170 W (LX60)(DIN 1 kHz, THD 1 %, 8 )Front. 150 W + 150 W (LX70), 140 W + 140 W (LX60)Center. 150 W (LX70), 140 W (LX60)Surround.150 W + 150 W (LX70)140 W + 140 W (LX60)Surround back.150 W + 150 W (LX70)140 W + 140 W

39、(LX60)Rated Power Output Stereo (20 Hz to 20 kHz, 0.09 %, 8 ). 140 W+140 W (LX70), 130 W+130 W (LX60) The above specifications are applicable when the power supply is 230V.Audio SectionInput (Sensitivity/Impedance)LINE.335 mV/47 kFrequency Response (LINE). 5 Hz to 100 000 Hz dBOutput (Level/Impedanc

40、e)REC. 335 mV/2.2 kTone ControlBASS. 6 dB (100 Hz)TREBLE . 6 dB (10 kHz)LOUDNESS. +4 dB/+2 dB (100 Hz/10 kHz)(at volume position 40 dB)Signal-to-Noise Ratio (IHF, short circuited, A network)LINE.103 dBSignal-to-Noise RatioDIN (continuous rated power output/50 mW)LINE.92 dB/65 dBComposite Video / S-V

41、ideo SectionInput (Sensitivity/Impedance). 1 Vp-p/75 Output (Level/Impedance). 1 Vp-p/75 Signal-to-Noise Ratio. 65 dBFrequency Response .5 Hz to 10 MHzComponent Video SectionInput (Sensitivity/Impedance). 1 Vp-p/75 Output (Level/Impedance). 1 Vp-p/75 Signal-to-Noise Ratio. 65 dBFrequency Response .5

42、 Hz to 100 MHzFM Tuner SectionFrequency Range.87.5 MHz to 108 MHzUsable Sensitivity.Mono: 15.2 dBf, IHF (1.6 V/75 )50 dB Quieting Sensitivity. Mono: 20.2 dBfStereo: 41.2 dBfSensitivity (DIN).Mono: 1.1 V (S/N 26 dB)Stereo: 50 V (S/N 46 dB)Signal-to-Noise Ratio.Mono: 76 dB (at 85 dBf)Stereo: 72 dB (at

43、 85 dBf)Signal-to-Noise Ratio (DIN). Mono: 62 dBStereo: 58 dBDistortion . Stereo: 0.6 % (1 kHz)Alternate Channel Selectivity .70 dB (400 kHz)Stereo Separation .40 dB (1 kHz)Frequency Response .30 Hz to 15 kHz 1dBAntenna Input. 75 unbalancedAM Tuner SectionFrequency Range.531 kHz to 1602 kHz (9 kHz s

44、tep)Sensitivity (IHF, Loop antenna). 350 V/mSelectivity . 30 dBSignal-to-Noise Ratio. 50 dBAntenna.Loop antennaMiscellaneousPower Requirements.AC 220 V to 230 V, 50 Hz/60 HzPower Consumption. 460 WIn standby.0.6 W (HDMI Control OFF)0.8 W (HDMI Control ON)AC Outlet.(switched) 100 W/0.4 A MAX.Dimensio

45、ns. 420 (W) mm x 187 (H) mm x 459 (D) mmWeight (without package).17.0 kgFurnished PartsSetup microphone (for Auto MCACC setup) .1AA/IEC R6P dry cell batteries.2Remote control unit .1AM loop antenna .1FM wire antenna.1Power cord .1Warranty card.1Operating instructionsOperating instructions for HOME M

46、EDIA GALLERY (VSX-LX70 only) Note Specifications and the design are subject to possible modifications without notice, due to improvements.VSX-LX70956785678CDFABE2.3 PANEL FACILITIES Front PanelIllustration shows the VSX-LX70 front panel1 INPUT SELECTOR dialUse to select an input source.2 STANDBY/ONS

47、witches the receiver between on and standby. Power indicator lights when the receiver is on.3 PHASE CONTROL Press to switch on/off Phase Control or Full Band Phase Control.MCACC POSITION Press to switch between MCACC presets.AUTO SURR/STREAM DIRECT Press to select Auto Surround or Stream Direct list

48、ening.4 Remote sensorReceives the signals from the remote control.5 Character display6 PHASE CONTROL indicator Lights to indicate Phase Control or Full Band Phase Control is selected.ADVANCED MCACC indicator Lights when one of the MCACC presets is selected.1Digital Precision Processing indicator Lig

49、hts to indicate digital processing (for example, it disappears when Pure Direct is on, or when listening through the multichannel analog inputs).VSX-LX70MASTERVOLUMESTANDBY/ONINPUTSELECTORPHASECONTROLPHASECONTROLAUTO SURR/STREAM DIRECTMCACCPOSITIONADVANCEDMCACCDIGITAL VIDEOHDMISCALERDIGITAL PRECISIO

50、NPROCESSINGHOMETHXSTANDARDSURROUNDADVANCEDSURROUND(TUNE)(TUNE)PHONESPARAMETERSETUP(ST)(ST)VIDEOAUDIOTUNER EDIT BANDSPEAKERSON/OFFCONTROLSIGNALSELECTSTEREO/F.S.SURRSB ch PROCESSINGVIDEO/GAME 2 INPUTDIGITAL IN S-VIDEOVIDEOLRAUDIOMULTI ZONE & SOURCE/REC SELMCACCSETUP MICRETURNENTERUSB911101213141516171