Pioneer-XHM50-rec-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 JapanX-HM50-KRRV4145CD Receiver SystemX-HM50-KX-HM50-STHIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).ModelTypePower RequirementRemarksX-HM50-KSYXJ5AC 220 V to 230 VX-HM50-SSYXJ5AC 220 V to 230 VFor details, refer to I

3、mportant Check Points for good servicing. K-IZV OCT.RadioFans.CN 收音机爱 好者资料库2X-HM50-K1234ABCDEF1234SAFETY INFORMATION IMPORTANTTHIS PIONEER APPARATUS CONTAINSLASER OF CLASS 1.SERVICING OPERATION OF THE APPARATUSSHOULD BE DONE BY A SPECIALLYINSTRUCTED PERSON.For CD Wave length (typ) : 790 nm Operation

4、 output : 4 mW CW, Class 1 Maximum output : Class 1 (Under fault condition)Laser Pickup specifications and Laser characteristicsWARNINGThis 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.

5、6 - Proposition 65This 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 those covered by this

6、 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 qualified service technicia

7、n.CAUTIONThis product is a class 1 laser product classifiedunder the Safety of laser products, IEC 60825-1:2007.CLASS 1 LASER PRODUCTD58-5-2-2a_A1_EnLABEL CHECKWARNING ! The laser component is capable of emitting radiation exceeding the limit for CLASS 1. Aspecially instructed person should do servi

8、cing operation of the apparatus.RadioFans.CN 收音机爱 好者资料库3X-HM50-K56785678ABCDEFImportant 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 confo

9、rm to product 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 w

10、ithout proper 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, pl

11、ease be sure 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 correct

12、ly inserted.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 Ma

13、ke sure screws 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 pleas

14、e be sure 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 co

15、nnections 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 surroun

16、dings and 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 requ

17、ire cleaning, 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 prope

18、r amount is 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.4X-HM50-K

19、1234ABCDEF1234CONTENTS SAFETY INFORMATION.21. SERVICE PRECAUTIONS .51.1 NOTES ON SOLDERING .52. SPECIFICATIONS.62.1 SPECIFICATIONS.62.2 PANEL FACILITIES.73. BASIC ITEMS FOR SERVICE.83.1 JIGS LIST.83.2 PCB LOCATIONS .94. BLOCK DIAGRAM.104.1 OVERALL BLOCK DIAGRAM.104.2 MICOM BLOCK DIAGRAM.114.3 POWER

20、SUPPLY BLOCK DIAGRAM.125. DIAGNOSIS.135.1 TROUBLESHOOTING .135.2 PROTECTION CIRCUIT DESCRIPTION.176. TEST MODE.207. DISASSEMBLY.218. EACH SETTING AND ADJUSTMENT .288.1 UPDATING OF THE MICOM SOFTWARE .288.2 UPDATING OF THE USB FIRMWARE.299. EXPLODED VIEWS AND PARTS LIST.309.1 PACKING SECTION.309.2 EX

21、TERIOR SECTION.329.3 SPEAKER SECTION.3610. SCHEMATIC DIAGRAM .3810.1 REAR IO, FRONTIN and USB ASSYS .3810.2 AMP ASSY.4010.3 MICOM ASSY.4210.4 SERVO ASSY .4410.5 SERVICE FL, SWITCH and IPOD ASSYS .4610.6 REG and POWER ASSYS.4810.7 WAVEFORMS.5011. PCB CONNECTION DIAGRAM .5211.1 REAR IO, FRONTIN and US

22、B ASSYS .5211.2 AMP ASSY.5411.3 MICOM ASSY.5611.4 SERVO ASSY .5811.5 SERVICE FL and SWITCH ASSYS.6011.6 IPOD ASSY.6211.7 REG ASSY.6311.8 POWER ASSY.6412. PCB PARTS LIST .655X-HM50-K56785678ABCDEF1. SERVICE PRECAUTIONS1.1 NOTES ON SOLDERING For environmental protection, lead-free solder is used on th

23、e printed circuit boards mounted in this unit. Be sure to use lead-free 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

24、, by approximately 40 C. Therefore, for lead-free soldering, the tip temperature 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

25、 a soldering iron whose tip temperature cannot be controlled.Compared with 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 numbe

26、rs of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.6X-HM50-K1234ABCDEF12342. SPECIFICATIONS2.1 SPECIFICATIONS AccessoriesRemote control (AXD7605) x1(RRMCGA233AWSA)Speaker wire x2(QCNWHA023AWPZ)iPohone 3G adapter x1(GCOVA239AWSA)iPohone adapter x1(GCOVA238AWSA)Warranty

27、 cardOperating instructionsAM loop aerial x1(QANTL0005AWZZ)FM aerial x1(QCNWGA038AWPZ)“AAA” size battery(UM/SUM-4, R3, HP-16 or similar) x27X-HM50-K56785678ABCDEF2.2 PANEL FACILITIES8X-HM50-K1234ABCDEF12343. BASIC ITEMS FOR SERVICE3.1 JIGS LISTLubricants and Glues ListNamePart No.RemarksAdhesive (No

28、. 1600B)GYL1007Refer to “9.2 EXTERIOR SECTION”.Silicon adhesive (No. KE-3494)GEM1037Refer to “9.2 EXTERIOR SECTION”.Silicon grease (PN-600)GEM1057Refer to “9.2 EXTERIOR SECTION”.CleaningNamePart No.RemarksCleaning paperGED-008Cleaning liquiedGEM1004Position to be cleanedPickup lens9X-HM50-K56785678A

29、BCDEF3.2 PCB LOCATIONSJREG ASSYDAMP ASSYEMICOMASSYBFRONTINASSYCUSB ASSYGSERVICE FLASSYHSWITCHASSYCD LOADERASSYCD MECHANISMUNITSPACE1 ASSYFSERVOASSYKPOWERASSYAREAR IOASSYIIPOD ASSYBottom viewBottom view NSP 1.DISPLAY ASSY QPWBFA341AWA0 2.SERVICE FL ASSY QPWBFA341AWA0-1 2.REG ASSY QPWBFA341AWA0-2 2.FR

30、ONTIN ASSY QPWBFA341AWA0-3 NSP 1.MAIN ASSY QPWBFA342AWA0 2.AMP ASSY QPWBFA342AWA0-1 2.MICOM ASSY QPWBFA342AWA0-2 2.POWER ASSY QPWBFA342AWA0-3 2.REAR IO ASSY QPWBFA342AWA0-4 2.USB ASSY QPWBFA342AWA0-5 2.SWITCH ASSY QPWBFA342AWA0-6 2.SPACE1 ASSY QPWBFA342AWA0-7 1.SERVO ASSY QPWBSA076AWA0 1.IPOD ASSY Q

31、PWBSA092AWA0 CD MECHANISM UNIT (SANYO DA-11VZ) KMECZA019AWZZ CD LOADER ASSY KMECZA025AW01Mark No. DescriptionPart No.Mark No. DescriptionPart No.LIST OF ASSEMBLIESNOTES: - Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List. - The mark found on some co

32、mponent parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.10X-HM50-K1234ABCDEF12344. BLOCK DIAGRAM4.1 OVERALL BLOCK DIAGRAMINPUT CD, USB, LINE IN, TUNER, AUDIO INSWITCHING CONTROL AUDIO PROCESSOR AND MUTING.OUTPU

33、T H/P PRE-AMP, CD PRE-AMP, POWER PRE-AMP & POWER AMPLIFIERTUNERVOLAUDIO PROCESSOR(NJU7391)EQOSC(AM)SYS_MUTEAMPMUTEN4558MTDA8920C50 W/CH4 Ohm50 W/CH4 OhmSUB WOOFERPRE-OUTVIDEO OUTH/P OUTHP_MUTESURRHPAMPFRONTAMP+LINE INL/R SIGNALL/R SIGNALL/R SIGNALIC604L/R SIGNALL/R SIGNALL/R SIGNALN.C.AUD INOP-AMPCD

34、/USBiPodDIC600DIC1FIC601D11X-HM50-K56785678ABCDEF4.2 MICOM BLOCK DIAGRAMTUNE_RST, SEN, SCLK, SDIODAB_SO, SI, SCLK, EN, RST, MUTE, SCAN, FUNCCD_FUNC, RST, BUS0 to 3, BUCK, CCE, REQUSB_TXO, RX0, RSTCE, DIFL_DATA, SCK, CS, RSTKEY1, 2, POWER KEY SWRX_INIPOD DETECTIONSYS_MUTE, AMP_MUTE, AMP ON/OFFHP_MUTE

35、, HP_SWTUNER/+RDS/DABAUDIO PROCESSORDISPLAY DRIVERKEYREMOTECDUSBiPodFRONT SPMICOMH/PIC600DIC3FIC3FAIC500EIC400G12X-HM50-K1234ABCDEF12344.3 POWER SUPPLY BLOCK DIAGRAMS1= 18 Vdc 2.5 AFuse4.0 ABridgeDiodeIC802IC800IC803-VCC (-9V)IC801FLSUBP.TIC504IC503IC502POWER AMP50 W + 50 W (P)Diode 4Diode 4Fuse2.0

36、AFuse3.15 A / 3.0 AS2= 15 Vdc 0.5 AS3= 8 Vdc 0.5 AS4= 4.1 Vdc 0.25 AUNSW_+5VREMOTECON SENSORMICOM UNSW_SW3.3VBACK-UP 3.3V / CD PLAY KEYTIMER LED RED x1 PCSSpk output: 50 W att/CHCD MOTOR 7VVCC_+9VMICOM_+5V, CD_+5V,TUNER_+5V, VCC_+5VSW3.3 VMICOM PULL UPFL DRIVER-VF & OP-AMP (-9 V)USB_+5VVF1, 2FL supp

37、lyUNSW_+3.3VPowerTransformer120 V&230 V240 VIC604PT801+BUSB_+VCC (+8V)AMP+VDD (+19V), -VSS (-19V)D610F805F803F801, F802D806, D809, D811, D813D835, D836, D837, D838PT80013X-HM50-K56785678ABCDEF5. DIAGNOSIS5.1 TROUBLESHOOTING1. Focus-RF system check.No1. Does the pickup move inward ?Yes2. Does the foc

38、us (lens) move up and down ? (Waveform drawing Fig. 1)NoNoNoNoCheck the focus peripheral circuit.Check the laser diode driver Q1 peripheral circuit.Yes3. Is the laser lit ?YesSpindle motor.4. Is the turntable rotating ?When a disc is loaded, start playback operation.Pin 21, 26, 11 and 12 on IC1, Pin

39、s 1, 2, 15 and 16 onIC2. Check the laser diode driver Q1 peripheral circuit.1. Is focus servo activated? (Waveform drawing Fig. 2)Yes2. Is the RF waveform normal ? (Waveform drawing Fig. 3)NoIf the level is not normal, PU is defective.Sled motor.Although a CD is inserted and the tray is closed, NO D

40、ISC is displayed.Fig. 2Fig. 1Fig. 31IC1 - pin 26 (FOO)V: 1.0 V/div. H: 1 S/div.212IC1 - pin 27 (TRO)V: 1.0 V/div. H: 1 S/div.5IC1 - pin 9 (RFO)V: 0.2 V/div. H: 0.2 S/div.51IC1 - pin 26 (FOO)V: 1.0 V/div. H: 500 mS/div.5154IC1 - pin 9 (RFO)V: 1.0 V/div. H: 500 mS/div.4IC1 - pin 24 (TEI)V: 1.0 V/div.

41、H: 500 mS/div.1 When a CD cannot be played1) Focus-RF system check2) Tracking system check3) Spindle motor system check4) PLL system check5) Others14X-HM50-K1234ABCDEF12342. Tracking system checkYesIf the waveform shown in Fig. 4 appearsand soon after NO DISC appears?NoThe TOC data can be read, but

42、play is not possible ?YesYesA normal jump operation cannot be completed or the beginning of the track cannot be found.Check the around pin 27 on IC1.Data cannot be read. Check the VCO-PLL (Pin 75, 76, 77, 78 and 80 on IC1) system.NoThe TOC data cannot be read.The tracking servo is not activated. Che

43、ck the peripheral circuits at pin 24, 27,15 and 16 on IC1, pins 17, 18, 35 and 36 in IC2 and FFC1.Check the TE waveform at pin 24 on IC1.3. Spindle motor system check.Press the OPEN/CLOSE switch without inserting a disc, and try starting the play operation.1. The turntable rotates a little? (Wavefor

44、m drawing Fig. 5)YesYesThe spindle motor driver circuit is OK.Check around pin 31 on IC1, pins 3, 4, 13 and 14 on IC2.No2. The turntable doesnt rotate.Fig. 4Fig. 51IC1 - pin 26 (FOO)V: 1.0 V/div. H: 1 S/div.414IC1 - pin 24 (TEI)V: 1.0 V/div. H: 1 S/div.6IC1 - pin 31 (DMO)V: 1.0 V/div. H: 500 mS/div.

45、161IC1 - pin 26 (FOO)V: 1.0 V/div. H: 500 mS/div.15X-HM50-K56785678ABCDEF4. PLL system check.When a disc is loaded, start play operation.The RF waveform is normal, but the TOC data cannot be read.Check the TMAX waveform. (Fig. 6)Check around Pins 75, 76, 77, 78 and 80 on IC1.5. OthersThe RF waveform

46、 is normal and the time is displayed normally, but no sound is produced.Or the sound has dropouts.Is pin 40, 42 and 45 on IC1 (Fig. 7),(Playback 1 kHz signal).NoThere are too many error flags on a damaged disc which makes error correction impossible.Check again using a known good disc.YesIf OK. Chec

47、k the Audio line in the AMP Assy.NoFig. 6Fig. 77IC1 - pin 76 (TMAX)V: 2.0 V/div. H: 1 S/div.87861IC1 - pin 78 (LPFO)V: 0.5 V/div. H: 1 S/div.6IC1 - pin 31 (DMO)V: 2.0 V/div. H: 1 S/div.1IC1 - pin 26 (FOO)V: 0.5 V/div. H: 1 S/div.9IC1 - pin 45 (LO)V: 1.0 V/div. H: 2 mS/div.1091011IC1 - pin 42 (RO)V:

48、1.0 V/div. H: 2 mS/div.11IC1 - pin 40 (COMMON3 (SBOK)V: 2.0 V/div. H: 2 mS/div.16X-HM50-K1234ABCDEF12341. USB system checkPress a USB button, insert the USB memory device into the USB.1. Does the device information can display ?NoCheck around pin 79 and 80 or 1, 87, 88 and 89 on IC3 (Fig. 8 and 9)Ch

49、eck around pin 71, 92 and 93 on IC3(Fig. 10) pin 57 to 59 on IC1.Yes2. The waveform and the time is displayed normal, but no sound is produced.NoFig. 9Fig. 10Fig. 812IC3 - pin 88 (RXD1)V: 2.0 V/div. H: 500 S/div.1314131215IC3 - pin 87 (TXD1)V: 2.0 V/div. H: 500 S/div.14IC3 - pin 89 (nRESET)V: 2.0 V/

50、div. H: 500 S/div.15IC3 - pin 1 (RST)V: 2.0 V/div. H: 500 S/div.18IC3 - pin 71 (LRCK1)V: 2.0 V/div. H: 500 nS/div.19181920IC3 - pin 92 (BCK1)V: 2.0 V/div. H: 500 nS/div.20IC3 - pin 93 (AIN)V: 2.0 V/div. H: 500 nS/div.16IC3 - pin 80 (D-)V: 2.0 V/div. H: 500 nS/div.171617IC3 - pin 79 (D+)V: 2.0 V/div.