Pioneer-VSXLX52-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 CORPORATION20092009 Printed in JapanVSX-LX52RRV3933AUDIO/VIDEO MULTI-CHANNEL RECEIVERVSX-LX52THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).ModelTypePower RequirementRemarksVSX-LX52SYXJ5AC 220 V to 230 VFor details, refer to Important Check Points for good serv

3、icing. T-ZZV MAYRadioFans.CN 收音机爱 好者资料库2VSX-LX521234ABCDEF1234SAFETY INFORMATION 1. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, condui

4、t, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60

5、 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.2. PRODUCT SAFETY NOTICE Many electrical and m

6、echanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special

7、 safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual.The use of a substitute replacement component which does not have the same safety characteristics

8、as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service

9、Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER. LeakagecurrenttesterReading shouldnot be above0.5 mADeviceundertestTest allexposed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)EarthgroundAC Leak

10、age Test(FOR USA MODEL ONLY)WARNINGThis product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65NOTICE(FOR CANADIAN MODEL

11、ONLY)Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts 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 que les pices de remplac

12、ement doivent avoir la mme dsignation.This service manual 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 t

13、hose covered by this manual.Improperly performed repairs 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 qualifi

14、ed service technician.RadioFans.CN 收音机爱 好者资料库3VSX-LX5256785678ABCDEFImportant 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 prod

15、uct regulations (such as safety and radiation regulations), 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 pro

16、per instructions.Please follow the specified safety methods 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 su

17、re that there are no cold solder and other debris.Soldering 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 inserte

18、d.Please be sure that all connectors are inserted, and 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 sc

19、rews and soldering scraps do not remain inside the product.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

20、that there are no damages.If you find a damaged power 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

21、and suitable usage. Please exchange the power cord if 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

22、repair safely. 2. AdjustmentsTo keep the original performance 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 cleani

23、ng, such as optical pickups, tape deck heads, lenses 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 i

24、s applied.5. Shipping mode and Shipping screwsTo protect 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.4VSX-LX521234ABCDEF

25、1234CONTENTS SAFETY INFORMATION.21. SERVICE PRECAUTIONS .61.1 NOTES ON SOLDERING .61.2 NOTES ON REPLACING.61.3 CAUTION.62. SPECIFICATIONS.72.1 SPECIFICATIONS.72.2 PANEL FACILITIES.83. BASIC ITEMS FOR SERVICE.133.1 CHECK POINTS AFTER SERVICING.133.2 PCB LOCATIONS .143.3 JIGS LIST.154. BLOCK DIAGRAM.1

26、64.1 OVERALL WIRING DIAGRAM.164.2 BLOCK DIAGRAM FOR DIGITAL AUDIO BLOCK.184.3 BLOCK DIAGRAM FOR ANALOG AUDIO BLOCK .204.4 BLOCK DIAGRAM FOR DIGITAL VIDEO BLOCK.214.5 BLOCK DIAGRAM FOR ANALOG VIDEO BLOCK (1/2).224.6 BLOCK DIAGRAM FOR ANALOG VIDEO BLOCK (2/2).244.7 BLOCK DIAGRAM FOR U-COM BLOCK .254.8

27、 BLOCK DIAGRAM FOR POWER BLOCK.265. DIAGNOSIS.285.1 DIAGNOSIS FLOWCHART.285.2 CIRCUIT DESCRIPTION.456. SERVICE MODE .506.1 TEST MODE.507. DISASSEMBLY.528. EACH SETTING AND ADJUSTMENT .608.1 HOW TO UPDATE FIRMWARE.609. EXPLODED VIEWS AND PARTS LIST.649.1 PACKING SECTION.649.2 EXTERIOR SECTION.669.3 R

28、EAR SECTION.689.4 FRONT SECTION.7010. SCHEMATIC DIAGRAM .7210.1 AUDIO ASSY .7210.2 COMPOSITE (1/2) and V-BRIDGE ASSYS.7410.3 COMPOSITE ASSY (2/2).7610.4 COMPONENT ASSY (1/2).7810.5 COMPONENT ASSY (2/2).8010.6 DIGITAL MAIN ASSY (1/11).8210.7 DIGITAL MAIN ASSY (2/11).8810.8 DIGITAL MAIN ASSY (3/11).90

29、10.9 DIGITAL MAIN ASSY (4/11).9210.10 DIGITAL MAIN ASSY (5/11).9410.11 DIGITAL MAIN ASSY (6/11).9610.12 DIGITAL MAIN ASSY (7/11).9810.13 DIGITAL MAIN ASSY (8/11).10010.14 DIGITAL MAIN ASSY (9/11).10210.15 DIGITAL MAIN ASSY (10/11).10410.16 DIGITAL MAIN ASSY (11/11).10610.17 FRONT MIC & VIDEO ASSY.10

30、810.18 FRONT HDMI & USB ASSY .11010.19 POWER AMP ASSY (1/2).11210.20 POWER AMP ASSY (2/2).11410.21 PRESTAGE ASSY.11610.22 DISPLAY ASSY.11810.23 PRIMARY, UNREG and XM REGULATOR ASSYS .12010.24 REGULATOR ASSY.12210.25 POWER SW, ENCODER, HEAD PHONE and DIODE ASSYS.12410.26 BRIDGE 1 and 2 ASSYS .12510.2

31、7 POSI 1-3, BIND L FRONT and BACK, BIND R FRONT and BACK ASSYS.12610.28 BINDER and DISP-FFC GUARD ASSYS.12711. PCB CONNECTION DIAGRAM .12811.1 AUDIO ASSY .1285VSX-LX5256785678ABCDEF11.2 COMPOSITE and V-BRIDGE ASSYS.13211.3 COMPONENT ASSY.13411.4 DIGITAL MAIN ASSY.13611.5 FRONT MIC & VIDEO and FRONT

32、HDMI & USB ASSYS.14011.6 POWER AMP ASSY.14211.7 PRESTAGE ASSY.14611.8 DISPLAY ASSY .14811.9 PRIMARY ASSY.15211.10 UNREG, XM REGULATOR and REGULATOR ASSYS.15411.11 POWER SW, ENCODER, HEAD PHONE, DIODE, BRIDGE 1 and 2 ASSYS.15811.12 POSI 1-3, BIND L FRONT and BACK and BIND R FRONT ASSYS.16011.13 BIND

33、R BACK, BINDER and DISP-FFC GUARD ASSYS.16212. PCB PARTS LIST.1636VSX-LX521234ABCDEF12341. SERVICE PRECAUTIONS1.1 NOTES ON SOLDERING1.2 NOTES ON REPLACING1.3 CAUTION For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free so

34、lder and a 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 tempe

35、rature of a 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

36、 eutectic solders, 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.

37、3 in dia.The part listed below is difficult to replace as a discrete component part.When the part listed in the table is defective, replace whole Assy.IC800EMMA2RL2UPD61283F1-407LU2ABGAIC1501HDMI ReceiverSII9233ACTUIC with heat-padDIGITAL MAINASSYASSY NAMERef No.Part No.RemarksFUNCTIONPCB ASSY Part

38、No.Parts that is Diffcult to ReplaceAWX9420 Discharging Please refer to page 52, “Preparations Before Perfoming Diagnosis of the POWER AMP Assy”. Ground Points Please refer to page 53, “Ground Points”. 7VSX-LX5256785678ABCDEF2. SPECIFICATIONS2.1 SPECIFICATIONSThese specifi cations are applicable whe

39、n the power supply is 230 V.Audio sectionRated power output (1 kHz, 6 , 1 %) Front. . . . . . . . . . . . . . . . . . . . . . . . . . . .150 W + 150 W Center. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150 W Surround. . . . . . . . . . . . . . . . . . . . . . . . .150 W + 150 W

40、 Surround back . . . . . . . . . . . . . . . . . . . .150 W + 150 WRated power output (20 Hz to 20 kHz, 8 , 0.09 %) Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 W + 110 W Center. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 W Surround. . . . . . . . . . . .

41、 . . . . . . . . . . . . . 11110 W + 110 W Surround back . . . . . . . . . . . . . . . . . . . . 110 W + 110 WTotal Harmonic Distortion. . . . . . . . . . . . . . . . . . . . 0.06 % (20 Hz to 20 kHz, 8 , 100 W + 100 W)Guaranteed speaker impedance . . . . . 16 to 8 , less than 8 to 6 (setting require

42、d)Signal-to-Noise Ratio (IHF, short circuited, A network) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 dBFrequency Response. . . . . . . . . 5 Hz to 100 000 Hz dB (Pure Direct Mode)Input (Sensitivity/Impedance) . . . . . . . . . . 300 mV/47 kOutput (Level/Imped

43、ance) REC . . . . . . . . . . . . . . . . . . . . . . . . . . . .300 mV/2.2 kTuner SectionFrequency Range (FM) . . . . . . . . . .87.5 MHz to 108 MHzAntenna Input (FM) . . . . . . . . . . . . . . . . 75 unbalancedFrequency Range (AM) . . . . . . . . . . 531 kHz to 1602 kHzAntenna (AM). . . . . . . .

44、 . . . . . . .Loop antenna (balanced)Video SectionSignal level Composite/S-Video . . . . . . . . . . . . . . . . . 1 Vp-p (75 ) Component Video . . . . . . . . . . . . . . Y: 1.0 Vp-p (75 ), PB, PR: 0.7 Vp-p (75 )Corresponding maximum resolutionComponent Video . . . . . . . . . . . . . . . . . . . 1

45、080p (1125p) (Video convert off)Digital In/Out SectionHDMI terminal . . . . . . . . . . . . . . . . . . . . .19-pin (Not DVI)HDMI output type. . . . . . . . . . . . . . . . . . . . . . 5 V, 100 mAUSB terminal . . . . . . . . . . . . USB2.0 Full Speed (Type A)iPod terminal . . . . . . . . . . . .USB,

46、 and Video (Composite)Integrated control sectionControl (SR) terminal. . . . . . . . . 3.5 Mini-jack (MONO)Control (IR) terminal. . . . . . . . . . 3.5 Mini-jack (MONO)IR signal . . . . . . . . . . . . . . High Active (High Level: 2.0 V)12 V Trigger terminal . . . . . . . . . 3.5 Mini-jack (MONO)12

47、V Trigger output type. . . . . . . . . . . . .12 V, Total 50 mARS-232C cable type. . . . 9-pin, cross type, female-femaleMiscellaneousPower requirements. . . . AC 220 V to 230 V, 50 Hz/60 HzPower consumption . . . . . . . . . . . . . . . . . . . . . . . . . 410 W In standby. . . . . . . . . . . . .

48、. . .0.5 W (KURO LINK OFF) 0.8 W (KURO LINK ON)Dimensions . . . 420 (W) mm x 173 (H) mm x 433 (D) mmWeight (without package). . . . . . . . . . . . . . . . . . . . 13.5 kgFurnished Parts NumberMCACC Setup microphone (APM7009) . . . . . . . . . . . . . 1Remote control unit (AXD7547). . . . . . . . .

49、. . . . . . . . . . . 1AA/IEC R6 dry cell batteries . . . . . . . . . . . . . . . . . . . . . . 2iPod cable (ADE7129) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1AM loop antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1FM wire antenna. . . . . . . . . . . . . . . . .

50、 . . . . . . . . . . . . . . . 1Power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Warranty card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Operating instructions NoteSpecifi cations and the design are subject to possible modifi cations witho