Pioneer-VSX921K-avr-sm 维修电路原理图.pdf

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1、ORDER NO.VSX-821-KRRV4167AUDIO/VIDEO MULTI-CHANNEL RECEIVERVSX-821-KVSX-921-KVSX-521-KTHIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).ModelTypePower RequirementRemarksVSX-821-KCUXCNSMAC 120 VVSX-921-KUXCNCBAC 120 VVSX-521-KCUXCNSMAC 120 VFor details, refer to Important Check Points f

2、or good servicing. RadioFans.CN 收音机爱 好者资料库2VSX-821-K1234ABCDEF1234SAFETY INFORMATION WARNINGThis product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm.Health & Safety Code Section 25249.6 - Proposition 65This service manual is in

3、tended 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 repairs can adv

4、ersely 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.1. SAFETY PRECAUTIONS The following check

5、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, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all

6、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 120 V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.ANY MEASUREMENTS NOT WITHIN THE LI

7、MITS 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 mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual insp

8、ection 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 safety characteristics are identified in this Service Manual. Electrical components having such features are identified b

9、y 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 as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or oth

10、er 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 Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEE

11、R. LeakagecurrenttesterReading shouldnot be above0.5 mADeviceundertestTest allexposed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)EarthgroundAC Leakage Test(FOR USA MODEL ONLY)RadioFans.CN 收音机爱 好者资料库3VSX-821-K56785678ABCDEFImportant Check Points for Good ServicingIn thi

12、s 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 regulations), and maintain a safe servicing environment by following

13、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 methods when modification(addition/change of parts) is required

14、 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.Soldering should be finished with the proper quantity. (Refer to

15、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, and that there are no imperfect insertion.6 Make sure the wiring

16、 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 product.Please check that neither solder debris nor screws remai

17、n 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 cord, please exchange it with a suitable one.9 There should b

18、e 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 necessary.a Safe environment should be secured during servici

19、ng.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 performance of the products, optimum adjustments and confirmation

20、 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 and mirrors used in projection monitors, proper cleaning shoul

21、d 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 protect products from damages or failures during transit, the ship

22、ping 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-821-K1234ABCDEF1234CONTENTS SAFETY INFORMATION.21. SERVICE PRECAUTIONS .51.1 NOTES ON SOLDERING .51.2 SERVICE NOTICE.52. SPECIFIC

23、ATIONS.63. BASIC ITEMS FOR SERVICE.93.1 CHECK POINTS AFTER SERVICING.93.2 JIGS LIST.93.3 PCB LOCATIONS .104. BLOCK DIAGRAM.144.1 OVERALL WIRING DIAGRAM.144.2 AUDIO BLOCK DIAGRAM (for VSX-821-K, VSX-521-K).164.3 AUDIO BLOCK DIAGRAM (for VSX-921-K).184.4 D-MAIN BLOCK DIAGRAM (for VSX-821-K, VSX-521-K)

24、.204.5 D-MAIN BLOCK DIAGRAM (for VSX-921-K).224.6 VIDEO BLOCK DIAGRAM.244.7 POWER SUPPLY and MAIN UCOM BLOCK DIAGRAM.265. DIAGNOSIS.285.1 TROUBLESHOOTING .285.2 ADAPTER ERROR MESSAGE.445.3 USB / iPod ERROR MESSAGE.455.4 DETECTION CIRCUIT.466. SERVICE MODE .486.1 SERVICE MODE.487. DISASSEMBLY.528. EA

25、CH SETTING AND ADJUSTMENT .628.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED .628.2 UPDATING OF THE FIRMWARE.638.3 IDLE CURRENT ADJUSTMENT .679. EXPLODED VIEWS AND PARTS LIST.709.1 PACKING SECTION.7010. SCHEMATIC DIAGRAM .8010.1 AUDIO ASSY .8010.2 AMP ASSY (1/2) (for VSX-921-K).8210.3

26、AMP ASSY (2/2) (for VSX-921-K).8410.4 AMP ASSY (1/2) (for VSX-821-K, VSX-521-K).8610.5 AMP ASSY (2/2) (for VSX-821-K, VSX-521-K).8810.6 MAIN ASSY.9010.7 SUBWOOFER, HEADPHONE, MIC, GUIDE L, R, WIRE GUIDE A and B ASSYS.9210.8 VIDEO ASSY .9410.9 F-VIDEO, FRONT and POWER ASSYS.9610.10 CPU, BRIDGE A and

27、B ASSYS.9810.11 STANDBY ASSY.10010.12 D-MAIN ASSY (1/4) .10210.13 D-MAIN ASSY (2/4) .10410.14 D-MAIN ASSY (3/4) .10610.15 D-MAIN ASSY (4/4) .10810.16 USB ASSY (VSX-821-K, VSX-921-K only) .11010.17 BT ASSY.11211. PCB CONNECTION DIAGRAM .11411.1 AUDIO ASSY .11411.2 AMP ASSY (for VSX-921-K) .11611.3 AM

28、P ASSY (for VSX-821-K, VSX-521-K) .11811.4 MAIN ASSY.12011.5 SUBWOOFER, HEADPHONE and MIC ASSYS .12411.6 GUIDE L, R, WIRE GUIDE A and B ASSYS.12611.7 VIDEO ASSY .12811.8 F-VIDEO, FRONT and POWER ASSYS.13011.9 CPU ASSY.13411.10 BRIDGE A and B ASSYS.13811.11 STANDBY ASSY.13911.12 D-MAIN ASSY.14011.13

29、USB ASSY (VSX-821-K, VSX-921-K only) .14411.14 BT ASSY.14512. PCB PARTS LIST .1465VSX-821-K56785678ABCDEF1. SERVICE PRECAUTIONS1.1 NOTES ON SOLDERING1.2 SERVICE NOTICE For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free

30、solder 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 tem

31、perature 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 wi

32、th 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

33、0.3 in dia. Discharging For more detail, please refer to 7. DISASSEMBLY - 1. Discharging. Notes on Ground Points Connection For more detail, please refer to 7. DISASSEMBLY - 2. Notes on Ground Points Connection.6VSX-821-K1234ABCDEF12342. SPECIFICATIONSAmplifier sectionContinuous average power output

34、 of 80 watts* perchannel, min., at 8 ohms, from 20 Hz to 20 000 Hz withno more than 0.08 %* total harmonic distortion. Front (stereo).80 W + 80 WPower output (1 kHz, 8 , 0.05 %).110 W per channelGuaranteed speaker impedance FRONT:A, B.6 to 16 FRONT:A+B.12 to 16 SURROUND, CENTER.6 to 16 * Measured pu

35、rsuant to the Federal Trade Commissions TradeRegulation rule on Power Output Claims for Amplifiers* Measured by Audio Spectrum AnalyzerAudio SectionInput (Sensitivity/Impedance) LINE.200 mV/47 kOutput (Level/Impedance) REC.200 mV/2.2 kSignal-to-Noise Ratio (IHF, short circuited, A network) LINE.98 d

36、BSignal-to-Noise Ratio EIA, at 1 W (1 kHz) LINE.79 dBVideo SectionSignal level Composite.1 Vp-p (75 ) Component Video.Y: 1.0 Vp-p (75 )PB, PR: 0.7 Vp-p (75 )Corresponding maximum resolution Component Video.1080p (1125p)Tuner SectionFrequency Range (FM).87.5 MHz to 108 MHzAntenna Input (FM).75 unbala

37、ncedFrequency Range (AM).530 kHz to 1700 kHzAntenna (AM).Loop antennaDigital In/Out SectionHDMI terminal.Type A (19-pin)HDMI output type.5 V, 100 mAUSB terminal.USB2.0 Full Speed (Type A)iPod terminal.USB, and Video (Composite)SIRIUS antenna cable.8-pin mini DIN cableADAPTER PORT terminal.5 V, 100 m

38、AMiscellaneousPower Requirements.AC 120 V, 60 HzPower Consumption.415 WIn standby.0.4 W (Control OFF)Dimensions.435 mm (W) x 168 mm (H) x 362.5 mm (D)173/16 in. (W) x 65/8 in. (H) x 145/16 in. (D)Weight (without package).9.2 kg (20 lb 5 oz)Furnished PartsMicrophone (for Auto MCACC setup).1Remote con

39、trol.1Dry cell batteries (AAA size IEC R03).2AM loop antenna.1FM wire antenna.1iPod cable.1Operating instructions.1NoteSpecifications and the design are subject to possible modifications without notice, due to improvements.VSX-821-KiPod cable(L308102013020-IL)AccessoriesRemote control (8300762100010

40、-IL)AM loop antenna (E601019000010-IL)FM wire antenna (E605010140010-IL)Dry cell batteries(AAA size IEC R03) x2Microphone (for Auto MCACC setup) (APM7008)7VSX-821-K56785678ABCDEFAmplifier sectionContinuous average power output of 80 watts* perchannel, min., at 8 ohms, from 20 Hz to 20 000 Hz withno

41、more than 0.08 %* total harmonic distortion. Front (stereo).80 W + 80 WPower output (1 kHz, 8 , 0.05 %).110 W per channelGuaranteed speaker impedance.6 to 16 * Measured pursuant to the Federal Trade Commissions TradeRegulation rule on Power Output Claims for Amplifiers* Measured by Audio Spectrum An

42、alyzerAudio SectionInput (Sensitivity/Impedance) LINE.200 mV/47 kOutput (Level/Impedance) REC.200 mV/2.2 kSignal-to-Noise Ratio (IHF, short circuited, A network) LINE.98 dBSignal-to-Noise Ratio EIA, at 1 W (1 kHz) LINE.79 dBVideo SectionSignal level Composite.1 Vp-p (75 ) Component Video.Y: 1.0 Vp-p

43、 (75 )PB, PR: 0.7 Vp-p (75 )Corresponding maximum resolution Component Video.1080p (1125p)Tuner SectionFrequency Range (FM).87.5 MHz to 108 MHzAntenna Input (FM).75 unbalancedFrequency Range (AM).530 kHz to 1700 kHzAntenna (AM).Loop antennaDigital In/Out SectionHDMI terminal.Type A (19-pin)HDMI outp

44、ut type.5 V, 100 mAUSB terminal.USB2.0 Full Speed (Type A)iPod terminal.USB, and Video (Composite)SIRIUS antenna cable.8-pin mini DIN cableADAPTER PORT terminal.5 V, 100 mAMiscellaneousPower Requirements.AC 120 V, 60 HzPower Consumption.500 WIn standby.0.4 W (Control OFF)Dimensions.435 mm (W) x 168

45、mm (H) x 362.5 mm (D)173/16 in. (W) x 65/8 in. (H) x 145/16 in. (D)Weight (without package).9.6 kg (21 lb 3 oz)Furnished PartsMicrophone (for Auto MCACC setup).1Remote control.1Dry cell batteries (AAA size IEC R03).2AM loop antenna.1FM wire antenna.1iPod cable.1Operating instructions.1NoteSpecificat

46、ions and the design are subject to possible modifications without notice, due to improvements.VSX-921-KiPod cable(L308102013020-IL)AccessoriesRemote control (8300762100010-IL)AM loop antenna (E601019000010-IL)FM wire antenna (E605010140010-IL)Dry cell batteries(AAA size IEC R03) x2Microphone (for Au

47、to MCACC setup) (APM7008)8VSX-821-K1234ABCDEF1234Amplifier sectionContinuous average power output of 80 watts* perchannel, min., at 8 ohms, from 20 Hz to 20 000 Hz withno more than 0.08 %* total harmonic distortion. Front (stereo).80 W + 80 WPower output (1 kHz, 8 , 0.05 %).110 W per channelGuarante

48、ed speaker impedance.6 to 16 * Measured pursuant to the Federal Trade Commissions TradeRegulation rule on Power Output Claims for Amplifiers* Measured by Audio Spectrum AnalyzerAudio SectionInput (Sensitivity/Impedance) LINE.200 mV/47 kOutput (Level/Impedance) REC.200 mV/2.2 kSignal-to-Noise Ratio (

49、IHF, short circuited, A network) LINE.98 dBSignal-to-Noise Ratio EIA, at 1 W (1 kHz) LINE.79 dBVideo SectionSignal level Composite.1 Vp-p (75 ) Component Video.Y: 1.0 Vp-p (75 )PB, PR: 0.7 Vp-p (75 )Corresponding maximum resolution Component Video.1080p (1125p)Tuner SectionFrequency Range (FM).87.5

50、MHz to 108 MHzAntenna Input (FM).75 unbalancedFrequency Range (AM).530 kHz to 1700 kHzAntenna (AM).Loop antennaDigital In/Out SectionHDMI terminal.Type A (19-pin)HDMI output type.5 V, 100 mAADAPTER PORT terminal.5 V, 100 mAMiscellaneousPower Requirements.AC 120 V, 60 HzPower Consumption.415 WIn stan