Marantz-PMD351-cd-sm 维修电路原理图.pdf

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1、Stereo Cassette Deck / Compact Disc PlayerPMD35102AT855010 MIT First Issue 2003.02TABLE OF CONTENTSSECTION PAGE 1. TECHNICAL SPECIFICATIONS . 1 2. SERVICE HINTS AND TOOLS . 2 3. TEST EQUIPMENT REQUIRED FOR SERVICING. 3 4. ELECTRICAL ADJUSTMENTS . 3 5. TECHNICAL DESCRIPTION . 10 6. SERVICE PROCEDURE.

2、 12 7. SERVICE MODE. 13 8. WIRING DIAGRAM. 15 9. BLOCK DIAGRAM . 1710. SCHEMATIC DIAGRAM. 1911. PARTS LOCATION. 3312. MICROPROCESSOR AND IC DATA. 3813. EXPLODED VIEW AND PARTS LIST. 4714. ELECTRICAL PARTS LIST. 53PMD351 /N1B/U1BRPMD351PMD351Please use this service manual with referring to the user g

3、uide ( D.F.U. ) without fail.ServiceManualEJECTPOWERHP SELECTPHONESCDREC LEVELBALANCETAPEQUICK REVERSEAUTOMATIC TAPE SELECT SYSTEMTAPETAPE+CDCDLRPLAYSTOP/EJECTPLAY/PAUSEPLAYPLAY PAUSE STOPSTEREO CASSETTE DECK/COMPACT DISC PLAYER PMD3510CD-RW PLAYBACKDOLBY NRREV.MODEBOFFRESETMEMOCALCONOFFPROGRAMCD PI

4、TCH CONT.REPEATA-BDUBB.REC/PAUSE+ TAPEPITCH CONT-CASCADEDOLBY B-C NR HX PROTIMEIRRadioFans.CN 收音机爱 好者资料库MARANTZ DESIGN AND SERVICEUsing superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.Only original MARANTZ parts can insure that your MARANT

5、Z product will continue to perform to the specifi cations for which it is famous. Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax. In both cases, the correct part number has to be spe

6、cifi ed. The following information must be supplied to eliminate delays in processing your order : 1. Complete address 2. Complete part numbers and quantities required 3. Description of parts 4. Model number for which part is required 5. Way of shipment 6. Signature : any order form or Fax. must be

7、signed, otherwise such part order will be considered as null and void.SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC cord connector pins ( with unit NOT connected to AC mains and its Powe

8、r switch ON ), and the face or Front Panel of product and controls and chassis bottom. Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and verifi ed before it is return to the user/customer. Ref. UL Standard No. 1492.In case of

9、 diffi culties, do not hesitate to contact the Technical Department at above mentioned address. 021216MITSUPERSCOPE TECHNOLOGIES, INC.USAMARANTZ AMERICA, INC1100 MAPLEWOOD DRIVEITASCA, IL. 60143USAPHONE : 630 - 741 - 0300FAX : 630 - 741 - 0301JAPANTechnical MARANTZ JAPAN, INC.35- 1, 7- CHOME, SAGAMI

10、ONOSAGAMIHARA - SHI, KANAGAWAJAPAN 228-8505PHONE : +81 42 748 1013FAX : +81 42 741 9190EUROPE / TRADING MARANTZ EUROPE B.V.P. O. BOX 8744, BUILDING SILVERPOINTBEEMDSTRAAT 11, 5653 MA EINDHOVENTHE NETHERLANDSPHONE : +31 - 40 - 2507844FAX : +31 - 40 - 2507860AUSTRALIAQualiFi Pty Ltd,24 LIONEL ROAD, MT

11、. WAVERLEY VIC 3149AUSTRALIAPHONE : +61 - (0)3 - 9543 - 1522FAX : +61 - (0)3 - 9543 - 3677NEW ZEALANDWILDASH AUDIO SYSTEMS NZ14 MALVERN ROAD MT ALBERTAUCKLAND NEW ZEALANDPHONE : +64 - 9 - 8451958FAX : +64 - 9 - 8463554THAILANDMRZ STANDARD CO., LTD746 - 754 MAHACHAI ROAD.,WANGBURAPAPIROM, PHRANAKORN,

12、 BANGKOK, 10200 THAILANDPHONE : +66 - 2 - 222 9181FAX : +66 - 2 - 224 6795TAIWANPAI- YUING CO., LTD.6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C.PHONE : +886 - 2 - 25221304FAX : +886 - 2 - 25630415MALAYSIAWO KEE HONG ELECTRONICS SDN. BHD.2ND FLOOR BANGUNAN INFINITE CENTRELOT 1, JALAN

13、 13/6, 46200 PETALING JAYASELANGOR DARUL EHSAN, MALAYSIAPHONE : +60 - 3 - 7954 8088FAX : +60 - 3 - 7954 7088 AMERICASMARANTZ PROFESSIONAL PRODUCTS2640 WHITE OAK CIRCLE, SUITE AAURORA, ILLINOIS 60504 USAPHONE : 630 - 820 - 4800FAX : 630 - 820 - 8103KOREAMK ENTERPRISES LTD.ROOM 604/605, ELECTRO-OFFICE

14、TEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOULKOREAPHONE : +822 - 3232 - 155FAX : +822 - 3232 - 154SINGAPOREWO KEE HONG DISTRIBUTION PTE LTD130 JOO SENG ROAD#03-02 OLIVINE BUILDING SINGAPORE 368357PHONE : +65 6858 5535 / +65 6381 8621FAX : +65 6858 6078HONG KONGJolly ProAudio Broadcast Engineering L

15、td.UNIT 2, 10F, WAH HUNG CENTRE,41 HUNG TO ROAD, KWUN TONG, KLN.,HONG KONGPHONE : 852 - 21913660FAX : 852 - 21913990CANADALENBROOK INDUSTRIES LIMITED633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1CANADAPHONE : 905 - 831 - 6333FAX : 905 - 831 - 6936TECHNICAL AUDIO GROUP PTY, LTD43-53 Bridge Rd.,STANMOR

16、E NSW 2048AUSTRALIAPHONE : +61 - (0)2 - 9519 - 0900FAX : +61 - (0)2 - 9519 - 0600 AUSTRALIARadioFans.CN 收音机爱 好者资料库11. TECHNICAL SPECIFICATIONSTAPE DECKTrack System .4 Track, 2 ChannelRecording/Erasure System.AC 105 kHz BiasHead System (Rotary type combination) Rec Play Head.Hard Metal Alloy Erase He

17、ad.Dual Gap FerriteMotor System Capstan .DC Servo Controlled Motor Reel .DC MotorWow & Flutter W RMS.0.14% Frequency Characterstics Frequency Response (no Dolby NR) type I (Normal).30Hz-15kHz 3dB type II (High) .30Hz-16kHz 3dB type IV (Metal) .30Hz-16kHz 3dBOverall S/N (no Dolby NR, IEC-A WTD) type

18、I (Normal).53dB type II (High) .54dB type IV (Metal) .55dBDolby NR effect (B/C, S/N improvement, CCIR-ARM WTD) . B 9dB, C 18dBOutput Level/Output Impedance. 500mV/1k Input Sensitivity/Input Impedance TAPE IN . 100mV/47k MIC IN. 0.5mV/10k CDChannels . 2Sampling frequency.44.1 kHzQuantization .16-bit

19、linear/channelError correction system . Cross-interleave Reed-Solomon code (CIRC)D/A Conversion .1-bit linear/channelWow & Flutter. Quartz crystal accuracyOptical Readout System Laser.AlGaAs semiconductor Wavelength . 780 nmFrequency Characterstics (Pitch control off) Frequency Response.20Hz-20kHz 0

20、.3dB Dynamic range.90 dB Signal-to-noise ratio.96 dB Channel separation.90 dB Total harmonic distortion. 0.005% (1 kHz) Analog output Output Level.2V RMS stereo Output Impedance.1k Digital output Coaxial output.0.5Vp-p/75COMMON PARTPower Supply /U .120V AC 60Hz /N .230V AC 50HzDimensions Width. 19 i

21、nches (483mm) Height . 5 3/16 inches (133mm) Depth . 11 1/32 inches (280mm)Net Weight.3.1 lbs. (6.8kg)2DVD test disc (NTSC) ALMEDIOTDV-540SERVICE TOOLSAudio signals disc4822 397 30184Disc without errors (SBC444)+Disc with DO errors, black spots and fingerprints (SBC444A)4822 397 30245Disc (65 min 1k

22、Hz) without no pause4822 397 30155Max. diameter disc (58.0 mm)4822 397 60141Torx screwdriversSet (straight)4822 395 50145Set (square)4822 395 5013213th order filter4822 395 30204DVD test disc (PAL)4822 397 10131 SERVICE HINTS2. SERVICE HINTS AND TOOLS33. TEST EQUIPMENT REQUIRED FOR SERVICINGFor meas

23、uring or checking a Cassette Deck, the following instruments and materials are necessary. Audio Oscillator (Audio Signal Generator) Attenuator (600 ohm) Audio Noise Meter Oscilloscope Wow and Flutter Meter Torque Meter (Cassette Type) Digital Frequency Counter Test Tape TCC-112/MTT-111 Wow/Flutter,

24、Tape Speed TCC-120/MTT-212N Signal-to-Noise Ratio TCC-130/MTT-150 Dolby Level Adjustment TCC-174A/MTT-255M Azimuth Adjustment (TCC-*:A-BEX/MTT-*:TEAC) Blank Tapes (Completely erased with bulk eraser) AC-225 (Normal) AC-514 (High Position) AC-713 (Metal)NOTE:If any doubt is noted in a measured value,

25、 which is due to a tape. Re-measurement is necessary by use the new tape. Mirror cassette 12um padless TCC-902/MTT-902 Tape fl owing check Head guide gauge (M-300) THG-8014. ELECTRICAL ADJUSTMENTS(A) Remark for adjustment1) Clean and de-magnetize the tape path part before measurement.2) Keep cassett

26、e tapes away from equipments.3) De-magnetize tools often.4) Do not turn adjustment parts by strong force.5) Keep a cassette deck horizontally while measuring.6) Keep amount of glue in proper.7) Confi rm the mains voltage, output level of oscillator and etc. before adjustment and measurement.4(B) S.R

27、.L. (Standard Recording Level)1. The Standard Recording Level is a signal of 250nWb/m on a tape at *OPEN CIRCUIT MAGNETIC FLUX. The relation between the recording level and a test tape is as follows. OPEN CIRCUIT 160 185 200 220 250 MAGNETIC FLUX (nWb/m) CLOSED CIRCUIT 160 185 200 MAGNETIC FLEX (nWb

28、/m) * * (*): OPEN CIRCUIT MAGNETIC FLUX = CLOSED CIRCUIT MAGNETIC FLUX + LEAKMAGNETIC FLUX. (*): TCC-130 (DOLBY REFERENCE LEVEL) (MTT-150) (*): TCC-120 (IEC REFERENCE LEVEL) (S.R.L.) (MTT-212N)2. S.R.L. Setting1) Apply a 1kHz, 100mV to the LINE INPUT jacks.2) Put the unit in RECORD mode and adjust t

29、he REC LEVEL control to obtain the following level of signal at the DOLBY test points T601 (L), T602 (R) 300mV.3) Adjust the output of the audio oscillator applied to the LINE INPUT jacks to 112.2mV (+1dB). This is the rated recording condition for the STANDARD RECORDING LEVEL.5ADJUSTMENT FLOW CHART

30、StartTAPE SPEED AdjustmentAZIMUTH AdjustmentPLAY-BACK EQ Adjustment or CheckPLAY-BACK LEVEL AdjustmentMPX Filter AdjustmentBIAS FREQUENCY AdjustmentBIAS OSC CoilHX CoilREC/PB FREQUENCY Response Adjust.NORMAL TapeMETAL TapeREC/PB FREQUENCY Response checkREC/PB LEVEL AdjustmentDOLBY NR ON (B,C)NORMAL

31、TapeMETAL TapeHIGH POSITION TapeHIGH POSITION TapeLEVEL METER Sensitivity Check6ADJUSTMENT POINT COMPONENT SIDE74.1 TAPE SPEED ADJUSTMENT1) Playback the middle part of the Wow & Flutter test tape.2) Adjust the variable resistor.ADJUSTMENT POINTRM36for 3000Hz (2990Hz - 3010Hz).3) Repeat 1) and 2) for

32、 both directions.4.2 HEAD AZIMUTH ADJUSTMENT and FREQUENCY RESPONSE CHECK1) Playback the 12.5 kHz part of the Azimuth test tape.2) Adjust the proper azimuth screw in both directions for maximum output at the LINE OUTPUT jacks.3) In case the L/R peak points are different, adjust the lower channel to

33、the maximum.4) Lock azimuth screws with glue.5) Playback the 315 Hz part of the test tape and set a 0 dB ref., then playback the 12.5 kHz part of the test tape and confi rm that the output is 0 dB, 3 dB.4.3 PLAYBACK LEVEL ADJUSTMENT1) Playback the DOLBY test tape, adjust the following variable resis

34、tors to the values and the test points indicated below:CHTEST POINTADJ.RES.ADJUSTMENTVALUELT601RJ15300mVRT602RJ162) After adjustment, replay and check it again.Remark:In case of drifting output during replay, check that the tape running and the test tape are ok, because they may be defective.84.4 MP

35、X FILTER ADJUSTMENT1) Put the unit in REC mode with a S.R.L. input.2) The MPX fi lter switch ON and change the input frequency to 19kHz(10Hz).3) Adjust L601(L), L602(R) for minimum output at the LINE OUTPUT jacks.CHADJ. POINTADJ. TOLRL601L602Minimum4.5 RECORDING BIAS FREQUENCY AND HX COIL ADJUSTMENT

36、1) Put the unit in REC mode.2) Adjust the following bias oscillator coil for 105kHz at the bias frequency.TEST POINTADJ. POINTADJ. TOR901LL01105kHzRemark:May have to connect FREQUENCY COUNTER through an AUDIO VOLT METER.3) Next, connect the Oscilloscope to the HX test point (T901, T902).4) Adjust th

37、e HX coils for minimum level.CHTEST POINTCOILADJ. TOLRT901T902L901L902Minimum4.6 LEVEL METER SENSITIVITY CHECK1) Put the unit in REC mode with a 1kHz, 100mV signal to the LINE INPUT jacks.2) Set the REC LEVEL at the test point T601, T602 as 300mV.3) Check the VU LEVEL METER indicates 0dB.Remark:Dolb

38、y switch has to be OFF.94.7 REC/PLAYBACK FREQUENCY RESPONSE ADJUSTMENT1) Adjust the output level of the audio oscillator to 5.0mV (-26dB) from the S.R.L. recording condition. Record 400Hz and 12.5kHz signals with DOLBY OFF.2) Playback the recorded part and confi rm the level of differences between 4

39、00Hz and 12.5kHz are within 1.0dB. If the level difference is out of allowance, adjust the variable resistor and confi rm the playback level of rerecordingCH.ADJUSTMENTLRR907R9083) Repeat steps #1 and 2 with High Position and METAL type tapes for confi rmation.4.8 REC/PLAYBACK LEVEL ADJUSTMENT1) Inp

40、ut the 400Hz signal and put the unit into record mode. Measure the output level to set the reference level of 0dB.2) Playback the just recorded part and adjust proper variable resistor, until the REC/PB levels are within 0.5dB.CH.ADJUSTMENTLRRK05RK063) Repeat steps #1 and 2 with High Position and ME

41、TAL type tapes for confi rmation.4.9 REC/PLAYBACK FREQUENCY RESPONSE CHECK DOLBY NR1) Adjust the output level of the audio oscillator to 5.0mV (-26dB) from the S.R.L. recording condition. Record the following signals with DOLBY-B ON and Normal tape at 250Hz, 1kHz, 3kHz, 6.3kHz, 10kHz and 12.5kHz.2)

42、Playback the just recorded part and confi rm the difference of levels are within 1.0dB.3) Repeat steps #1 and 2, with High Position and METAL type tapes.4) Repeat steps #1 and 2, with Dolby-C ON. 10How to use the RS-232C connectorThis input/output connector (D-Sub 9-pin female) is used for RS-232C e

43、xternal control.A straight cable available on the market can be connected to this connector to exercise external control and send status information. Connector pin assignment RS232C ConnectionThe wiring requirements for a 9 pin to 9 pin serial con nec tion, are a male to female straight cable. RS-23

44、2C physical specifi cations Command receptionThe command packets have a data length of 7 - 10 bytes.ASCII codes from 0 x00 to 0 x7f are used to receive serial data. At the transmission end, therefore, take steps to convert the ASCII codes into HEX data to set the data in the data packets. CR (0 x0d)

45、 is added as the data packet delimiter.1NC2TX3RX4NC5GND6NC7RTS8CTS9NC6951CableStraight cableBaud rate9600 bpsData bits8 bitsParity bitNoneStop bit1 bitFlow controlCS/RS Hardware FlowCommandCD CommandTAPE Command012000+CR11800+CR112001+CR11801+CR212002+CR11802+CR312003+CR11803+CR412004+CR11804+CR5120

46、05+CR11805+CR612006+CR11806+CR712007+CR11807+CR812008+CR11808+CR912009+CR11809+CRTime12011+CR Recall12015+CR Repeat12029+CR Next12032+CR11832+CRPrevious12033+CR11833+CRPitch Reset12037+CR Pitch Up Start12038+CR Pitch Up Stop1203801+CR Pitch Down Start12039+CR Pitch Down Stop1203901+CR Program/Memo12

47、041+CR11841+CRAMS12043+CR11843+CROpen/Close12045+CR Pause12048+CR11848+CRClear12049+CR Fast Backward Start12050+CR11850+CRFast Backward Stop1205001+CR Fast Forward Start12052+CR11852+CRFast Forward Stop1205201+CR Play12053+CR11853+CRStop12054+CR11854+CRA-B12059+CR Direction11847+CRREC Mute11842+CRRE

48、C11855+CRReceived command dataExample: Reception Time Command (code 12011)12011CR0 x400 x310 x320 x300 x310 x310 x0dRTS sendCTS receivePMD351Typical HOSTRS inCS outTransmit DataReceive DataGroundRx DataTx DataGround235235D-Sub 9 Pin(male)D-Sub 9 Pin(female)7878When transmitting commands consecutivel

49、y, put more than 100ms blank between commands.5. TECHNICAL DESCRIPTION11 Status transmissionThe status packets have a fi xed data length of 8 bytes.ASCII codes from 0 x00 to 0 x7f are used to transmit serial data. For this reason, the ASCII codes are converted into HEX data before the data is set in

50、 the data packets and transmitted. CR (0 x0d) is added as the data packet delimiter.Transmitted status dataExample 1: Transmission Power On (code 120PRON)120PRONCR0 x40 0 x31 0 x32 0 x30 0 x50 0 x570 x4f0 x4e 0 x0dRequest Command for CDResponse from CD Power1?20POWE+CRStandby120POFF+CRPowerOn120PRON