Pioneer-VSX920K-avr-sm 维修电路原理图.pdf

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1、ORDER NO.PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, 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

2、, #04-01, Singapore 159936 PIONEER CORPORATION20102010 Printed in JapanVSX-920-KRRV4048AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-920-KTHIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).This service manual should be used together with the following manual(s).For SPECIFICATIONS and PANEL FAC

3、ILITIES, refer to the operating instructions.ModelTypePower RequirementRemarksVSX-920-KUXCNCBAC 120 VModel No.Order No.RemarksVSX-820-K/CUXCNSMRRV4043K-ZZZ MAR.RadioFans.CN 收音机爱 好者资料库2VSX-920-K1234ABCDEF1234CONTENTS1. CONTRAST OF MISCELLANEOUS PARTS.32. BASIC ITEMS FOR SERVICE.52.1 JIGS LIST .53. BL

4、OCK DIAGRAM.63.1 OVERALL WIRING DIAGRAM .63.2 OVERALL BLOCK DIAGRAM.84. DIAGNOSIS.104.1 DIAGNOSIS FLOWCHART .105. DISASSEMBLY .215.1 DISASSEMBLY.216. EACH SETTING AND ADJUSTMENT .246.1 IDLE CURRENT ADJUSTMENT .247. SCHEMATIC DIAGRAM.267.1 INPUT ASSY.267.2 AMP ASSY.287.3 SPEAKER, HEADPHONE and MIC AS

5、SYS.307.4 PT, HP_GUIDE, CNT1, CNT2, GUIDE_L and GUIDE_R ASSYS .317.5 VIDEO ASSY .327.6 F-VIDEO, FRONT and FUNCTION ASSYS.347.7 MAIN and REG ASSYS .367.8 HDMI ASSY (1/2).387.9 HDMI ASSY (2/2).407.10 DSP ASSY (1/2).427.11 DSP ASSY (2/2).447.12 USB ASSY.468. PCB CONNECTION DIAGRAM .488.1 INPUT ASSY.488

6、.2 AMP ASSY.508.3 SPEAKER, HEADPHONE and MIC ASSYS.548.4 PT, HP_GUIDE, CNT1, CNT2, GUIDE_L and GUIDE_R ASSYS .568.5 VIDEO ASSY .588.6 MAIN and REG ASSYS .608.7 HDMI ASSY .648.8 DSP ASSY.668.9 USB ASSY.689. PCB PARTS LIST.70RadioFans.CN 收音机爱 好者资料库3VSX-920-K56785678ABCDEF1. CONTRAST OF MISCELLANEOUS P

7、ARTSCONTRAST TABLEVSX-820-K/CUXCNSM and VSX-920-K/UXCNCB are constructed the same except for the following:Parts 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 par

8、t.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.)Nos

9、. indicate the pages and Nos. in the service manual for the base model.NOTES:When ordering resistors, first convert resistance values into code form as shown in the following examples.Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by

10、J=5%, and K=10%).Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).5 6 14 7 3R 5 01 R 0RD1/4PU JRD1/4PU JRN2H KRS1P K56 x 10147 x 103 R501R0561473RN1/4PC F562 x 10156215261MarkNo.Symbol and DescriptionVSX-820-K/CUXCNSM VSX-920-K/UXCNCBRemarksPCB ASSEMBLIESNSP1.M

11、AIN ASSY7025HK0916010-IL7025HK0917060-ILP68-16 2.MAIN ASSY7028069111010-IL7028069321010-ILP68-6 2.PT ASSY7028069112010-IL7028069325010-ILP68-9 2.CNT2 ASSY7028069113010-IL7028069322010-ILP68-4 2.HEADPHONE ASSY7028069114010-IL7028069324010-ILP68-7 2.HP_GUIDE ASSY7028069115010-IL7028069323010-ILP68-5 2

12、.MIC ASSY7028069116010-IL7028069327010-ILP68-10 2.GUIDE_L ASSY7028069117010-IL7028069328010-ILP68-11 2.GUIDE_R ASSY7028069118010-IL7028069329010-ILP68-8 2.CNT1 ASSY7028069119010-IL7028069326010-ILNSP1.VIDEO ASSY7025HK0916013-ILNot usedP68-12 2.VIDEO ASSY7028069141010-ILNot usedNSP1.VIDEO ASSYNot use

13、d7025HK0917062-ILP68-12 2.VIDEO ASSYNot used7028069301010-ILP68-3 2.SPEAKER ASSYNot used7028069302010-ILNSP1.FRONT ASSY7025HK0916011-IL7025HK0917067-ILP68-13 2.F-VIDEO ASSY7028069123010-IL7028069124010-ILNSP1.INPUT ASSY7025HK0916012-IL7025HK0917061-ILP68-1 2.INPUT ASSY7028069131010-IL7028069291010-I

14、LNSP1.SPEAKER ASSY7025HK0916014-ILNot usedP68-3 2.SPEAKER ASSY7028069151010-ILNot usedNSP1.DSP ASSY7025HK0916015-IL7025HK0917063-ILP68-19 2.DSP ASSY7028069161010-IL7028069311010-ILP68-17 2.REG ASSY7028069162010-IL7028069312010-ILNSP1.HDMI ASSY7025HK0916018-IL7025HK0917064-ILP68-18 2.HDMI ASSY7028069

15、191010-IL7028069331010-ILNSP1.USB ASSY7025HK0916016-IL7025HK0917066-ILP68-20 2.USB ASSY7028069171010-IL7028069173010-IL4VSX-920-K1234ABCDEF1234NSP1.AMP ASSY7025HK0916019-IL7025HK0917065-ILP68-2 2.AMP ASSY7028067523010-IL7028069231020-ILPACKING SECTIONP65-7Operating Instructions (En/Frca/Es)570700000

16、3160-ILNot usedOperating Instructions (En/Sp)Not used5707000003260-ILP65-10Box, Gift6007211700060-IL60072117000D0-ILEXTERIOR SECTIONP68-22Power Trans.8200960610590-IL8200960610700-ILP68-27Cable, Flat Card 1.25N712232533810-ILN712232513880-ILP68-30Sheet1210210762000-IL1210211232000-ILP68-35Panel Fron

17、t3067214861000-IL3067214861010-ILP68-38Chassis Back3207213456000-IL3207213456400-ILPosistorNot usedF320121021240-ILNo. 69NSPLabel Getter 920UNot used5507000004550-ILNSPLabel Hot SurfaceNot used5507000003730-ILMarkNo.Symbol and DescriptionVSX-820-K/CUXCNSM VSX-920-K/UXCNCBRemarks5VSX-920-K56785678ABC

18、DEFEXPLODED VIEWSEXTERIOR SECTION2. BASIC ITEMS FOR SERVICE2.1 JIGS LIST755632177CFQFBFJigs ListJig NamePart No.RemarksRS-232C upgrade jigGGF1642Firmware upgrade (RS-232C Rear panel)10P to 8P FFCGGF1676Board to board extension jig cableGGD1674Diagnosis (DSP Assy MAIN Assy)13P extension jig cableGGD1

19、669Diagnosis (AMP Assy INPUT Assy)8P extension jig cableGGD1670Diagnosis (AMP Assy MAIN Assy)7P extension jig cableGGD1671Diagnosis (AMP Assy SPEAKER Assy)2P short connector jigGGD1672Diagnosis (Posistor MAIN Assy)6VSX-920-K1234ABCDEF12343. BLOCK DIAGRAM3.1 OVERALL WIRING DIAGRAMAMP ASSY(70280692310

20、20-IL)SPEAKER ASSY(7028069302010-IL)HEADPHONE ASSY(7028069324010-IL)REG ASSY(7028069312010-ILOPFUNCTION ASSY(7028069122010-IL)USB ASSY(702806917301BT ASSY (702806918101RFUFDFBFCF7VSX-920-K56785678ABCDEF- When ordering service parts, be sure to refer to EXPLODED VIEWS and PARTS LIST or PCB PARTS LIST

21、.- 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.- : The power supply is shown with the marked box. MAIN ASSY(7028069321010-IL)VIDEO ASSY(7028069301010-IL)HDMI ASSY(7028069331

22、010-IL)CNT2 ASSY(7028069322010-IL)INPUT ASSY(7028069291010-IL)CNT1 ASSY(7028069326010-IL)PT ASSY(7028069325010-IL)F-VIDEO ASSY(7028069124010-IL)EG ASSY028069312010-IL)OFRONT ASSY(7028069121010-IL)SB ASSY028069173010-IL)V28069181010-IL)MIC ASSY(7028069327010-IL)DSP ASSY(7028069311010-IL)TT1/2,2/2TFAF

23、IFGFQFRFSFEFMFNFJFFSS1/2,2/2CN201CN207CN2088VSX-920-K1234ABCDEF12343.2 OVERALL BLOCK DIAGRAMB D0-D11G Q12-Q23R Q24-Q35R D-24-D35B Q0-Q11RXODCKRXDERXHSYNCRXVSYNCG D12-D23RX_MCK,SDO/DLO,SCK/DCK,WS/DROVIDEO ASSYINPUT ASSYINPUT ASSYINPUT ASSYMAIN ASSYMAIN ASSYINPUTASSYVIDEOASSYHDMI ASSYUSBASSYMAIN ASSYM

24、IC ASSYDSP ASSYVBT ASSYF-VIDEO ASSYUFSFQFTFEFMFNF9VSX-920-K56785678ABCDEFHEADPHONE ASSYSPEAKERASSYPT ASSYYINPUT ASSYSSYMAIN ASSYMAIN ASSYSPEAKERASSYAMP ASSYOFRONT ASSYAFBFDFGFCF10VSX-920-K1234ABCDEF12344. DIAGNOSIS4.1 DIAGNOSIS FLOWCHARTStep 3: Regulator ICREG101 (Pin 3)Is thevoltage of around3.3 V

25、input?Replace REG103.Check the ZD200 3.0B and IC106.To Step 3To Step 4Step 0: Preliminary confirmationConfirm the following items before checkingTighten screws securely.NoYesTo Step 1No1 DSP TROUBLESHOOTINGStep 2: Regulator ICCheck the REG101, and MAIN AssyCheck the REG103 andMAIN Assy.REG103 (Pin 3

26、)Is thevoltage of around5 V input?NoYes(to chassis)ZD200 cathodeIs thevoltage of 3.0 Voutput?No*The I/O power of DSP Assy is OK.*The IC106 power of DSP Assy*The DSP IC CORE power of DSP AssyXMCKREG103 (Pin 2)Is thevoltage of 3.3 Voutput?NoYesYesYesIs thevoltage of 1.2 Voutput?Replace REG101.Check th

27、e path to XTAL101.NoYes(to chassis)(to chassis)REG101 (Pin 2)(to chassis)Step 1: BtoB connector, wireCN201,CN207,CN208,CP200,CP105Are the connectors securely inserted?Turn the power off andinsert the connectors securely.NoYesTo Step 2*CP200 connectors doesnt connection in case of DSP JIG BD use.BtoB

28、 connector, wireDo screws of COAX Jack securely tighten?OR connect GND wire of DSP JIG BD to chassis.Step 4: XtalTo Step 5YesIC109 (Pin 6, 7)NoIs there a 24.576 MHzoutput?Check the path to pins 6, 7 of IC109.Replace XTAL101.YesIC102 (Pin 17)NoIs there a 24.576 MHzinput?11VSX-920-K56785678ABCDEFRepla

29、ce IC109.YesIC109 (Pin 15)DIR_BCK (Bit clock)NoIs there a bit clockoutput?(0 V 3.3 V)YesIC106 (Pin 4)DAI_MCK (Master clock)Is there a master clockoutput?(0 V 3.0 V)YesIC106 (Pin 7)DAI_LRCK (LR clock)Is there a LR clockoutput?(0 V 3.0 V)YesIC106 (Pin 9)DAI_BCK (Bit clock)*IC106 Pin 1 0 V : DIR 3.3 V

30、: HDMIIs there a bit clockoutput?(0 V 3.0 V)Replace IC106.Check the pathbetween IC106-pin 1and MAIN Assy.NoNoNoNoIs thevoltage of IC106-pin 1 0 V?YesSwitchStep 5: DIRCheck the path to pins 10-13 of IC110 or replace IC110.Check the path to CP105 connector.Replace IC109.Check the path to OUTPUT PIN of

31、 JACK105, JACK106.IC110 (Pins 3, 5)OPTICAL (Pin 3: OPT2, Pin 5: OPT1)Check that the S/PDIF signal is output.Check that changes by pulling out and inserting the digital input lines.Canobserve thedigital signal?No(0 V 3.3 V)YesIC109 (Pin 67)COAXCanobserve thedigital signal?NoYesYesCheck that the data

32、and clock signals are output.Check that it changes in the Playback and Pause modes of the USB (iPod).(0 V 3.3 V)(0 V 3.3 V)(0 V 3.3 V)YesIC109 (Pin 71)From USB AssyCanobserve thedigital signal?No(0 V 3.3 V)Check the path to pins 4, 6 of IC110 or replace IC110.IC109 (Pins 61, 63)OPTICAL (Pin 61: OPT2

33、, Pin 63: OPT1)Canobserve thedigital signal?NoYes(0 V 3.3 V)Check the MAIN Assy.IC109 (Pin 10)DIR_MCK (Master clock)NoNoYesIs there a master clockoutput?IC109 (Pin 16)DIR_LRCK (LR clock)NoIs there a LR clockoutput?Replace IC109.(0 V 3.3 V)YesIC109 (Pin 14)DIR_SDTO (Data)NoIs there a dataoutput?Is th

34、evoltage of PDN IC109-pin 31 3.3 V?Check the USB Assy.NoTo Step 612VSX-920-K1234ABCDEF1234Step 6: DSP output (digital)YesDigital output of each CH when inputting the digital signal with audio.IC109 (Pin 26)Center/LFE dataNoIs there a data input?YesCheck the path between IC102 and data & address line

35、s. SDRAM (IC100), FLASH ROM(IC101)IC109 (Pin 25)Surround back L/R dataNoIs there a data input?YesIC109 (Pin 27)Surround L/R dataNoIs there a data input?YesIC109 (Pin 18)DSP_BCK (Bit clock)NoIs there a bit clockinput?YesIC109 (Pin 19)DSP_LRCK (LR clock)NoIs there a LR clock input?YesIC109 (Pin 28)Fro

36、nt L/R dataNoIs there a data input?(0 V 3.3 V)(0 V 3.3 V)(0 V 3.3 V)(0 V 3.3 V)(0 V 3.3 V)(0 V 3.3 V)To Step 713VSX-920-K56785678ABCDEFYesReplace IC109.IC109 (Pin 49)Front R outNoIs the output2.5 V fixing?Replace IC109.YesYesIC109 (Pin 43)Surround L outNoIs the output2.5 V fixing?Replace IC109.IC109

37、 (Pin 41)Center outNoIs the output2.5 V fixing?YesReplace IC109.IC109 (Pin 39)EndLFE outNoIs the output2.5 V fixing?YesYesReplace IC109.IC109 (Pin 47)Front L outNoIs the output2.5 V fixing?Replace IC109.IC109 (Pin 45)Surround R outNoIs the output2.5 V fixing?Analog output of each CH when inputting t

38、he digital signal (- dB (no signal).Replace IC109.YesIC109 (Pin 43)Surround L outNoIs there a audio signal output?Replace IC109.YesIC109 (Pin 41)Center outNoIs there a audio signal output?Replace IC109.YesIC109 (Pin 39)LFE outNoIs there a audio signal output?Step 7: Codec output (analog)Analog outpu

39、t of each CH when inputting the digital signal with audio.Replace IC109.YesIC109 (Pin 49)Front R outNoIs there a audio signal output?Replace IC109.YesIC109 (Pin 47)Front L outNoIs there a audio signal output?Replace IC109.YesIC109 (Pin 45)Surround R outNoIs there a audio signal output?14VSX-920-K123

40、4ABCDEF12341. Causes for noncompletion of HDMI authentication between the source equipment and this unit (the HDMI indicator is unlit or flashes)2 HDMI TROUBLESHOOTINGCauses for no display or sound from the monitorHDMI Simple DiagnosisReplace the HDMI cable.NGOKOKOKConnect the source equipment (play

41、er) to the Sink equipment (monitor) directly.Replace the Player.Replace the HDMI cable.Repare the Receiver.Repare the Player.NGOKReplace the Monitor.Repare the Monitor.NGPOWER ONConfirm the following items before checkingDoscrews of HDMIjack securelytighten?Tighten screws securely.NoYesSource equipm

42、ent:Connect a DVD player to BD or DVD or TV or DVR.To Step 2To Step 1Sink equipment:Connect a TV to HDMI OUT.Turn on the power of the Receiver and equipments which was connected with HDMI.Function switch (BD or DVD or TV or DVR)Switch the function that HDMI was assigned.Factory shipments setting:HDM

43、I 1: BDHDMI 2: DVDHDMI 3: TV/SATHDMI 4: DVR/VCRHDMI TroubleshootingStep 0: Preliminary confirmationStep 1: Connect the HDMI equipment15VSX-920-K56785678ABCDEFCN701 (Pin 1)Is the voltage0 to 3.3 V?NoSUB_ONDiagnose the MAIN Assy.Diagnose the MAIN Assy.Diagnose the MAIN Assy.Diagnose the MAIN Assy.YesC

44、N701 (Pin 9)Is the voltage3.3 V?Is the voltage3.3 V?Is the voltage3.3 V?Is the voltage5 V?NoSUB MICOM 3.3VQ711, Q722 (collector)NoSUB MICOM 3.3V, IC709 3.3VYesYesCN702 (Pin 17)NoHDMI_5VYesCN704 (Pins 3, 4)NoHDMI_3.3VYesIs Q711,Q722 base voltage 2.6 V?NoYesTo Step 3Is the voltage3.3 V?Is the voltage1

45、.8 V?Is the voltage3.3 V?Is the voltage1.2 V?Replace IC704.Replace IC701.IC704 (Pin 3)NoHDMI 3.3VYesIC704 (Pin 2)NoHDMI 1.8VYesCheck the parts and patterns in the path.Check the parts and patterns in the path.Is IC704 abnormally hot?Is IC701 abnormally hot?NoYesIC701 (Pin 3)NoHDMI 3.3VHDMI 1.2VYesTh

46、e output and GND may be short-circuited. Check the path between them.Check the parts and patterns in the path.Replace Q711, Q722, IC706, etc.Check the parts and patterns in the path Q711, Q722, Q714,Q721, etc.The output and GND may be short-circuited. Check the path between them.Is the voltage3.3 V?

47、Is the voltage1.8 V?Replace REG101.REG101 (Pin 3)NoHDMI 3.3VYesREG101 (Pin 2)NoABT 1V8YesCheck the parts and patterns in the path.Is REG101 abnormally hot?NoYesThe output and GND may be short-circuited. Check the path between them.IC701 (Pin 2)NoYesNoYesStep 2: Power supplyReplace Q714, Q721.NoYesIs

48、 Q714,Q721 collector voltage 0 V? (base is 3.3 V)16VSX-920-K1234ABCDEF1234Check the parts and patterns in the path of pin 87 of IC706.Is the voltage 0 to 3.3 V?Is there a data 0 to 3.3 V?IC703 (Pin 21)NoHR_RSTYesIC702 (Pin 25)NoYesCheck the parts and patterns in the path of pin 89 of IC706.To Step 4

49、Check the parts and patterns in the path of pin 56 of IC706.Is the voltage 0 to 3.3 V?Is there a data 0 to 3.3 V?IC707 (Pin 51)NoADV_RSTABT_RSTYesIC709 (Pin 63)NoYesCheck the parts and patterns in the path of pin 59 of IC706.Step 3: DiagnosisCN701 (Pin 5)Is the voltage0 to 3.3 V?NoSUB_RESETDiagnose

50、the MAIN Assy.Diagnose the MAIN Assy.Diagnose the MAIN Assy.Diagnose the MAIN Assy.Diagnose the MAIN Assy.YesCN701 (Pin 4)Is the voltage0 to 3.3 V?NoSUB_PDNCN701 (Pin 8)Is there a data input? (0 to 3.3 V)Is there a data input? (0 to 3.3 V)NoCSCK_MAINYesYesCN701 (Pin 3)Is there a data input? (0 to 3.