Pioneer XR-P740M, XR-P340M Disassembly, XR-P74M, XR-P640M, XR-P34M xF-P7 40, XR-P640, XR-P34

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XR-P74()M, XR-P640M, XR-P34()M xF-P7 40, XR-P640, XR-P34()

1.4 DISASSEMBLY

TCD MECHAASSYDIAGNOSISAND REPLACEMENT

1.Removethe cover.

2.OPEN the tray and lift the tray cap, pulling the bottom of the tray cap toward you. After removing the tray cap, CLOSE the tray.

3.Removethe VOL knob and 2 screws (BBZ30P080FZK)holding the VR assy in place.

4.Removethe 3 screws between the front Daneland the chassis. L/R sides:CBZ30P080FMC x2

Bottom side: BBZ30P080FZK x 1

5.Removethe lead wire from the cassettemecha assv from the chassis. Screw: BBZ30P080FZK x I

6.Removethe front panelfrom the chassis(watchingout for the claw on the left and right), and openthe sideof the AF CD assy. (Refer to Fig. 1)

NOTE:

Do not remove the rear panel and AF CD assyat this time.

AF CD Assy

Fig . I

Under these conditions most of the PCB diagnosisand parts replacementcan be performed.

IREMOVALOFAF CD ASSY

1.Under the conditions of the previous paragraph,remove the rear panel and A-F CD assy. (Do not separatethe rear panel and AF CD assy.)

XR-P340M (except KU type) and XR P340 . . Between rear panel and chassis.

Screw: BBZ30P080FZK x2

XR-P740M, 740, 640M, 640 and XR-P340IWKU . .Between rear panel and trans frame. Screw: BBZ30P080FZK x3

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Contents P74M A F E T YP R E C a U T I O N S SafetyinformationXR-P74M, XR-P64M, XR-P34M xR-P7 &, XR-pOaO, XR-P34 XR-P74OM, XR-P64OM, XR-P34OM xR-P7 N, XR-P64, XR-P34 Labetcheck Forcd MultiCLASS1vrsr8r,ErAsER Laserproduct RA0tATtotwHHrloPtN Forcd SingleFM/AM tun.r slstion FMTunrrSoction SpecfcationsXR-P74M, XR-P64M, XR-P340M xR-P7 Q, XR-P64, XR-P3@ Receiver PanelfacilitiesXR-P74OM, XR-P64OM, XR-P34OM R-P7 Q. XR-P6@, XR-P34O XR-P74M, XR-P621M, XR-P34M xR-P7 &, XR-P64, XR-P340 Tapedeck@oor--ev.NRoN/OFFbuttonXR-P3/o/XR-P3/0Monly Tapedeck MULTI-PIAYCDPLAYER CdplayerRemotecontrolunit O PowER butron @ Functionbutton Funci 6l VOLUME-/+l buttons @ NumberbuttonsXR-P74M, XR-P64M, XR-P340M xR-P7 N, XR-P640, XR-P34 SleepDisassembly XR-P74M, XR-P640M, XR-P34M xF-P7 40, XR-P640, XR-P34Blockdiagram Poweramp ModulesectionXR-P740M, XR-P640M, XR-P340M xR-P740, XR-P64J--,XR-P34.o OVT lPin Functionof Power Amo Module XR-P740M, XR-P64M, XR-P340M xR-P7 44, XR-P640, XR-P34Tzv +t2vIC Information XR-P740M, XR-P640M, XR-P34M xR-P7 40, XR-P64trJ, XR-P340Rc9268F ilc84o1 AF cD AssY PinAssignment ViewXR-P740M, XR-P640M, XR-P340M xR-P7 40, XR-P6 Q, XR-P340 System Control Micro-computer o PinAssignmentTopViewSo1 FIPs 7GXR-P74M, XR-P640M, XR-P34M xR-P7 &, XR-P640, XR-P34 FIP21 P1o/KO3 PXR-P7@M, XR-P640M, XR-P340M xR-P7 &, XR-P64J, XR-P340 PinAssignmentTop View60 FIP26 P1s/KO8 P XR-P74OM, XR-P64OM. XR-P34OM xR-P7 &, XR-P64, XR-P34PLL9162 XR-P740M, XR-P640M, XR-P34M xR-P7 Q, XR-P64, XR-P340 PDGtoSA ADDoN Iflc3951 DtspLAyAssyExceptXR-P34OM and XR-P34Ol System Control Micro-computer a PinFunctionDolby OFF Lnverter PinAssignmentTopViewOuty TSnnill fltNfifrl\VlltFrll P7 4OM. XR-P64OM, XR-P34OM xR-P74, XR-P64, XR-P340N S KAIRAIKE\PR@ XR.-P7 4AM, XR-P640M, XR-P340MXR-P74, XR-P64, XR-P340 Lnvzool v3951 ADDoN DtspLAyAssylAdjustments XR-P7@M, XR-P64OM, XR-P3@M xR-P7 40, XR-P64, XR-P34Tunersection FM TunerSectionPoweramp MODULESECTTONReferto Fig .2 1 HandlingPrecautionsAdjustment and Confirmationof ldle Current XR-P74OM. XR-P64OM, XR.P34OM xR.-P7 4o-, XR-P64HJ,XR-P340XR-e2461y1, XR-P640M, XR-P34M R-P7 Q, XR-P64O, XR-P34O RearAmp Side REAR,PWR,PRTECASSYRemarks Donot opemteSurroundAmpXR-P74O/M. XR-P64OM. XR-P34OM xR-P7 4o, XR-P6,4J-,XR-P34 7 E oCN7 OLiFrXR-P74OM, XR-P64OM, XR-P34OM xR-P7 40, XR-P640, XR-P34 STD-301Tape Test PlayPlayback Adjustment HeadAzimuthAdjustment XR-P74OM, XR-P64OM, XR-P34OM xR-P7 &, XR-P64, XR-P34Playback RecordingRecordingLevelAdjustment XR-P740M, XR-P64M, XR-P34M xR-P7 Q, XR-P64, XR-P34Recording Adiustmont BiasOscillationFrequencyAdiustment ALC OperationCheckFront DOLBYPRO.LOGICADJUSTMENT 5. DolbysurroundadjustmentXR-P74o/M, XR-P64M, XR-P34M xR-P7 4o,XR-P6,40,XR-P340 VR8152 Fcsgan XR-P740M, XR-P64M, XR-P34M xR-P74, XR-P64, XR-P34CD Sectionforcd Multiand CD Single Test Point and Adjustment Variable Resistor Positions Test ModeXR-P740M, XR-P640M, XR-P340M xR-P740, XR-P64J, XR-P34 \ t Ooo avR81s2 / \Focus servo close XR-P74OM, XR-P64OM, XR-P34OM xR-P7 4, XR-P64, XR-P34Dolbynr XR-P740M, XR-P640M, XR-P34M xR.-P7 40, XR-P64, XR-P340 REVSearch FWD EjectTrackingErrorBalanceVerification XR-P740M, XR-P64M, XR-P340M xR-P7 &, XR-P64, XR-P34FocusOffset Verilication YEDS7Pickup Radlal/Tangential Titt Adjustmont For GD Multil LProcedurelXR-P740M, XR-P640M, XR-P34M xR-P7 40, XR-P64J, XR-P340 DiscPictup Radial/Tangential Tilt Adjustment For GD Single Min of audio signal music.1XR-P740M, XR-P64M, XR-PS4M xR-P74, XR-P64trJ,XR-P340 Cm discTt l l , ,//Ar XR-P740M, XR-P64M, XR-P34M xIl.-P7 40, XR-P64, XR-P340RF Level Verification Focus Servo Loop Gain Adjustment P74,.M. XR-P64OM, XR-P34OM xR-P74, XR-P64J--, XR-P34OCHl CHzTrackingServo Loop Gain Adjustment XR-P7 4oM, XR-P64M, XR-P34M xR-P7 4, XR-P64, XR-P340CH1 YEDS7XR-P74M, XR-P640M, XR-P340M xR-P7 4, XR-P64, XR-P340 1I PackingFORXR-p740M, XR-p7zto,XR-p6rroMANDXRp640 ForXR-P7z10M/SD ForXR-P74OM/YPW,XR-P7zrO/SD,XR-P64OM/SD.YPW and XR-P64O/SDXR-P74M, XR-P64M, XR-P340M xB.P7 &, XR-P64, XR-P340 Lll -2. FORXR-P3rtOMANDXR-P3rtO I ForXR-P3zl0M/KUForXR-P3zOM/KC,SD,YPW,XR-P34O/SDandYPW Cu xR009XR-P74OM, XR-P64OM, XR-P34OM xR.-P7 N, XR-P64, XR-P34 2I Explodedviews ExteriorForXR-P7zlOM,XR-P74O, XR-P6rtOMandXR-P640 O ForXR-P7zOM/SD 4t scREwXR-P721M, XR-P640M, XR-P340M xR-P7 &, XR-P64, XR-P34 ForXR-P74OM/YPWxR.-P74O/SD,XR-P64OM/SD,YPW and XR-P64O/SDOo.*.ro AWZ1124awz?124 AWZ7125NSP XR-P74OM. XR-P64OM. XR-P34OM xR-P7 40, XR-P64, XR-P34For XR- P3rtOMand xR-P340 For XR-P34OM/KU XR-P740M, XR-P640M, XR-P340M xR.-P74, XR-P64, XR-P340 ForXR-P3rIOM/KC,SD, YPW,XR-P34O/SDandYPWXR-P740M, XR-P64M, XR-P340M R-P7 Q, XR-P64O. XR-P34O Cassettemechasectionforall ModetsiXR-P7ZIOM, XR-P64OM, XR-P34OM * -p74.XR-P64O, XR-P34O XR-P74OM, XR-P64OM, XR-P34OM xR.-P7N, XR-P64, XR-P34 Pcbpartslist XR-P74OM, XR.P64OM. XR-P34OM xR-P7 Q, XR-P64, XR-P340R5 RN2lttrtrtrK 010 Rs.lPtr Tr tr RMl/4PCgtrtrtrrCXD25I?Q XR-P74OM, XR-P64OM. XR-P34OM xR-P7 4, XR-P64, XR-P34O RxR-P740M/SD XR-P740M, XR-P64M, XR-P34M xR-P7 Q, XR-P640, XR-P340 CorLVR Assy CD Decksw AssyXR-P740M, XR-P64M, XR-P34M xR-P74, XR-P64, XR-P340 AddondisplayFrontassy for 1OOW Semiconductors XR-P74OM. XR-P64OM. XR-P34OM xR.-P7 40, XR-P64, XR-P34FM/AM Tunermodule Semiconductors XR-P74OM, XR-P64OM, XR-P34OM xR-P7 40, XR-P64, XR-P34 DeckunitREAR,PWR,PRTECASSY Semiconductors CcsQcHrorJsoXR-P74OM, XR-P64OM, XR-P34OM xR-P7 Q, XR-P64, XR-P34 C2203Ceasotomso CEAS2R2M5OXR.P74OM. XR-P64OM, XR-P3@M xR-P7 Q, XR-P64, XR-P34 VR AssyCD Decksw Assy TransprimaryassyXR-P74OM, XR-P64OM, XR-P34OM xR-P7 4.J,XR-P640, XR-P340 AddondisplayassyDOt Surrassy Cu28XR-P74M, XR-P640M, XR-P34M xR-P7 Q, XR-P64, XR-P340 FORXR-P3rOM/KU2I- 1. List of Wholepcbassemblies Co oecrsw ay PRttrtARY TRarusXR-P740M, XR-P64M, XR-P34M xR-P7 4, XR-P640, XR-P340 CcsQclr33rJsoR2121,R2122 CcsQcH390J50 R1007,Rlo1?Assy SecondrytransassyXR-P740M, XR-P640M, XR-P340M xR-P740, XR-P64, XR-P34 XR-P74OM, XR-P64OM, XR-P34OM xR-P7 &, XR-P64, XR-P340 Cr0r6Cl0l1,cr012 Secondrytrans Assy SemiconductorsXR-P74M, XR-P640M, XR-P340M xR-P7 40, XR-P64, XR-P340 SwrTcHEsMotorboardassy Fmiam TunermoduleXR-P740M, XR-P64M, XR-P34M xR.-P7 40, XR-P64, XR-P34 Pl\R,PRTECASSYOtherelectricalparts FRONTASSYFORsOWAwzT247 awz7286 XR-P74OM. XR-P64OM, XR-P34OM xR-P74, XR-P64, XR-P3402I-3. FORXR-P34OM/KC, SD, YPW, XRP34O/SDAND YPW AF CD Assy Displayassy XR-P7@M, XR-P64M, XR-P34M xR-P7 4, XR-P640, XR-P340Trans Primaryassy