Marantz-SD4050-tape-sm 维修电路原理图.pdf

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1、ServiceManualPlease use this service manual with referring to the user guide (D.F.U) without fail.286W855010 AO3120 785 22012First Issue:1999.08SD4050 /N1B, /U1B, /F1BCassette Deck- SD4050 -TABLE OF CONTENTS1.TECHNICAL SPECIFICATION .12.BLOCK DIAGRAM .23.WIRING DIAGRAM.34.ADJUSTMENT PROCEDURE .55.SC

2、HEMATIC DIAGRAM AND PARTS LOCATION .106.MICROPROCESSOR AND IC DATA .177.EXPLODED VIEW AND PARTS LIST.198.ELECTRICAL PARTS LIST.22Printed in JapanSD4050SD4050RadioFans.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 ulti

3、mate in stereo sound.Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for whichit is famous.Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.ORDERING PARTS :Parts can be ordered either

4、by mail or by Fax. In both cases, the correct part number has to be specified.The following information must be supplied to eliminate delays in processing your order :1. Complete address2. Complete part numbers and quantities required3. Description of parts4. Model number for which part is required5

5、. Way of shipment6. Signature : any order form or Fax. must be 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 ACcord conn

6、ector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product andcontrols and chassis bottom.Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, andverified before it is return t

7、o the user/customer.Ref. UL Standard No. 1492.In case of difficulties, do not hesitate to contact the TechnicalDepartment at above mentioned address.990729A.OUSAUSAMARANTZ AMERICA, INCMARANTZ AMERICA, INC.440 MEDINAH ROADROSELLE, ILLINOIS 60172USAPHONE : 630 - 307 - 3100FAX : 630 - 307 - 2687 BRAZIL

8、BRAZILMARANTZ BRAZILMARANTZ BRAZILCAIXA POSTAL 21462CEP 04698-970SAO PAULO, SP, BRAZILPHONE : 0800 - 123123(Discagem Direta Gratuita)FAX : +55 11 534. 8988JAPANJAPAN Technical MARANTZ JAPAN, INC.MARANTZ JAPAN, INC.35- 1, 7- CHOME, SAGAMIONOSAGAMIHARA - SHI, KANAGAWAJAPAN 228-8505PHONE : +81 42 748 1

9、013FAX : +81 42 748 9190EUROPE / TRADING EUROPE / TRADING MARANTZ EUROPE B.V.MARANTZ EUROPE B.V.P.O.BOX 80002, BUILDING SFF25600 JB EINDHOVENTHE NETHERLANDSPHONE : +31 - 40 - 2732241FAX : +31 - 40 - 2735578CANADACANADALENBROOK INDUSTRIES LIMITEDLENBROOK INDUSTRIES LIMITED633 GRANITE COURT, PICKERING

10、, ONTARIO L1W 3K1CANADAPHONE : 905 - 831 - 6333FAX : 905 - 831 - 6936AUSTRALIAAUSTRALIAJAMO AUSTRALIA PTY LTDJAMO AUSTRALIA PTY LTD1 EXPO COURT, P.O. BOX 350 MT. WAVERLEY VIC 3149AUSTRALIAPHONE : +61 - 3 - 9543 - 1522FAX : +61 - 3 - 9543 - 3677THAILANDTHAILANDMRZ STANDARD CO.,LTDMRZ STANDARD CO.,LTD

11、746 - 754 MAHACHAI ROAD.,WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 10200 THAILANDPHONE : +66 - 2 - 222 9181FAX : +66 - 2 - 224 6795TAIWANTAIWANPAI- YUING CO., LTD.PAI- YUING CO., LTD.6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C.PHONE : +886 - 2 - 25221304FAX : +886 - 2 - 25630415MALAYSIA

12、MALAYSIAWO KEE HONG ELECTRONICS SDN. BHD.WO KEE HONG ELECTRONICS SDN. BHD.NO. 102 JALAN SS 21/35, DAMANSARAUTAMA, 47400 PETALING JAYASELANGOR DARUL EHSAN, MALAYSIAPHONE : +60 3 - 7184666FAX : +60 3 - 7173828 AMERICASAMERICASSUPERSCOPE TECHNOLOGIES, INC.SUPERSCOPE TECHNOLOGIES, INC.MARANTZ PROFESSION

13、AL PRODUCTS2640 WHITE OAK CIRCLE, SUITE AAURORA, ILLINOIS 60504 USAPHONE : 630 - 820 - 4800FAX : 630 - 820 - 8103KOREAKOREAMK ENTERPRISES LTD.MK ENTERPRISES LTD.ROOM 604/605, ELECTRO-OFFICETEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOULKOREAPHONE : +822 - 3232 - 155FAX : +822 - 3232 - 154SINGAPORESIN

14、GAPOREWO KEE HONG (S) PTE LTDWO KEE HONG (S) PTE LTDWO KEE HONG CENTRE NO.23, LORONG 8, TOA PAYOH SINGAPORE 319257PHONE : +65 2544555FAX : +65 2502213RadioFans.CN 收音机爱 好者资料库1. TECHNICAL SPECIFICATION1Track System :4-track, 2-channel stereoHeads :Deck I ; 1 Playback (Rotating)Deck II ; 1 Erase and 1

15、Record/Playback (Rotating)Type of Tape :Cassette tape C-60 and C-90 (Philipstype)Tape Speeds :4.8 cm/sec, 4.9 cm/sec (When highspeed dubbing)Motors :DC servo motor x 2Wow and Flutter :0.09 % RMS, +/- 0.1 %w. peakFrequency response (Overall, -20 dB) :25-18,000Hz +/- 3 dB (at -20 dB, metaltape)Signal-

16、to-Noise Ratio (Overall) :More than 74 dB (CCIR/ARM); DolbyC NR onFast Winding Time : Appopox. 110sec with a C60 cassetteInputs :100 mV/50k ohm input level atmaximumOutputs :460 mV/47k ohm maximum(0 dB : 200 nWb/mm)Power Requirements :120 V AC, 60 Hz(U.S.A./Canada model)230 V AC, 50 Hz (Europe model

17、)Power Consumption :0.16 ADimensions (W x H x D) :440 x 124 x 286 m/m (W x H x D)Weight :4.0 kgStandard Accessories :Remote control unit (RC455SD) x 1(U.S.A. /Canada model only), Battery(SUM-3, “AA”, “R6” type) x 2 (U.S.A. /Canada model only),Input-output connection cord x 1Remote control cable x 1R

18、ecording Bias :Apporox. 100 kHzChannel Separation :More than 40 dB (at 1 kHz)Phones :0.95 mW (load impedance 8 ohm to1.2k ohm)Improvements may result in specification or feature chang-ing without notice.Dolby noise reduction and HX Pro headroom extensionmanufactured under license from Dolby Laborato

19、riesLicensing Corporation. HX Pro originated by Bang &Olufsen.“DOLBY”, the double-D symbol and “HX PRO” aretrademarks of Dolby Laboratories LicensingCorporation.PB AMPDECK APLAY HEADPB EQMETER AMPFL DISPLAYOUTPUTCPSPB AMPHI SPEEDDECK BR/P HEADRECPLAYPB EQDOLBY NR B,CPHONES AMPPHONESINPUTREC AMPREC E

20、Q+VBIAS ADJ.HX PROE HEADBIASOSC-V22. BLOCK DIAGRAM3. WIRING DIAGRAM+-ABMECH I12345678910 1 2 3 4 5 6 7 8 9 10J319PCB CONTROL123456789101112123456789101112J307 1 2 3 4 5 6 7 8 9 10 11 12P307PCB MAINDECK IRPLAY HEAD 1 2 3123LPLAY HEAD123P301470PLAYSOL+-ABCrO2TAPEMECH II123456789123456789J308 1 2 3 4 5

21、 6 7 8 9P30812345P302123456 1 2 3 4 5 6LR/P HEADDECK IIE HEADRR/P HEAD12P303123456123456J311 1 2 3 4 5 6P309 1 2 3J503 1 2 3123P50347012345678910111213 1 2 3 4 5 6 7 8 9 10 11 12 13J320PLAYSOLTAPEMETALCrO2F.RECR.REC 1 212P318PCB VR 1 2 3123P306 1 2 3J306PCB PHONE12345P304123 1 2 3P30512345J401PCB TR

22、ANS BPCB REMOTE12 1 2P50412J504123456P501 1 2 3 4 5 6J5011234512345J304PCB SLIDEPCB KEY34654-1 MECHANICAL ADJUSTMENT4-1-1 Wow and flutter (playback method)In both FWD and REV play modes, these measurementsshould be made at the beginning, middle, and the end of thetape.1. Connect a wow-and-flutter me

23、ter to the LINE OUT.2. Load and play a TEAC MTT-111N test tape.3. Check that readings on the wow-and-flutter meter is within0.19% (JIS WTD).4-1-2 Tape speed1. Connect a frequency counter to the LINE OUT.2. Load a TEAC MTT-111N test tape and play in FWDdirection the beginning of the test tape.3. Adju

24、st each variable resistor to get the following values.4. In play mode, check that the following values are obtainedat the beginning and end of the tape.Speed drifting : Within 120 Hz (HIGH speed)Within 60 Hz (LOW speed)4-1-3 Reel torque1. Load the cassette torque meter on the deck and read thepointe

25、r indication on the dial scale for each tape transportoperation. The measured torque should be within thefollowing specified values.Take-up : 30 to 70g-cmSupply: 1.5 to 6g-cmFF/REV : 70 to 150g-cmTorque metterMTT-8111W : Forward torque & back tensionMTT-8121W : Reverse torque & back tensionMTT-8242:

26、 Fast forward & rewind static torqueFig. 2-1Fig. 2-2Adjustment pointAdjustment valuePLAYBACKREC/PLAYHIGH speed VR2 6,000 30HzLOW speed VR1 3,000 20HzHIGH speed VR4 6,000 30HzLOW speed VR3 3,000 20Hz4-2-2 Adjustment locations4-2 ELECTRICAL ADJUSTMENT4-2-1 PrecautionsBefore performing adjustments and

27、checks clean anddemagnetize the entire tape parh.In general, adjustments and checks are made in the orderof Lch then Rch. Double REF. Nos. indicate Lch/Rch.(Example ; R11/R21)0dB is referenced to 0.775V.The AC voltmeter used in the procedures must have aninput impedance of 1M or more.Unless specifie

28、d otherwise, adjustments and checks aremade in FWD direction.4. ADJUSTMENT PROCEDURE74-2-3 Playback performanceDeck settings : Mode : PLAY DOLBY NR Switch : OFFTEAC test tapes : MTT-150C : For Dolby lavel calibration MTT-25702 : For playback frequency response check NORMAL tape MTT-5513: For S/N che

29、ck NORMAL tape1. Headazimuthadjustment2. DOLBY level4. Meter level3. Playback output level7. Playback S/N ratio6. Playback frequency response5.PHONES output level PHONESPLAYBACKREC/PLAYConnection:Fig. 2-4Check and adjust inFWD, REVrespectivelyConnection:Fig. 2-2FWD, PLAYMTT-150CCheckREV azimuthFWD a

30、zimuth(Fig. 2-5)R11/R21R12/R22CheckCheck46dB min.2501k+4dB-4dB12.5k (Hz)CheckCheckCheckAzimuth screwsMTT-150CMTT-150CMTT-150CMTT-150CMTT-25702(12.5kHz)Connection:Fig. 2-3FWD/REV PLAYConnection:Fig. 2-3Connection:Fig. 2-3MTT-25702MTT-5513Playback theleader tape portionITEMREMARKSSETTINGINPUT SIGNALAD

31、JUSTMENTS MEASURINGPOINTS, RESULTLINE OUT: Phase: within 45LINE OUT: Maximum output level at L & R -chTP1/TP2: -6dBRatio of ref.level to noiseRef. output levelLINE OUT: -4.5 1dBLEVEL METER: mark 1dotPHONES: -19 3dB8 load84-2-4 Recording performanceDeck settings : Mode : REC/PLAY DOLBY NR Switch : OF

32、F REC LEVEL Control : Specified position (Item 8)TEAC recording test tapes : MTT-5513: For NORMAL MTT-5563: For CrO2 MTT-5572: For METAL 8. Specified LINE input levelConnection:Fig. 2-3Mode: RECLINE IN: 400Hz/-9dBREC LEVELLINE OUT: -4.5dBLINE OUT: -7.5dBNORMAL:2.0% or lessCrO2 :2.5% or lessMETAL :3.

33、0% or lessNORMAL:45dB min.CrO2 :46dB min.METAL :46dB min.P303 Pin 2: 100kHzTP3/TP4: Min. DC voltageLINE OUT:Nearly equal levelat both frequencies30dB min.L301L103/L203R14/R24L101/L201R13/R23CheckCheckCheckCheckLINE IN: 19kHz/-12dBLINE IN: 400Hz/-12dBLINE IN: 400Hz/-12dBLINE IN: 250Hz/10kHz -42dBLINE

34、 IN: 40Hz -12.5kHz -42dBLINE IN: No signalLINE IN: No signalLINE IN: No signalConnection:Fig. 2-3Mode: RECConnection:Fig. 2-2TAPE: MTT-5513Mode: RECConnection:Fig. 2-2TAPE: MTT-5572Mode: RECConnection:Fig. 2-3TAPE: MTT-5513Connection:Fig. 2-3TAPE: MTT-5513 MTT-5563 MTT-5572Connection:Fig. 2-3TAPE: M

35、TT-5513 MTT-5563 MTT-5572Connection:Fig. 2-3TAPE: MTT-5513 MTT-5563 MTT-5572Connection:Fig. 2-3TAPE: MTT-5513TAPE: MTT-5563 MTT-5572ITEMREMARKSSETTINGINPUT SIGNALADJUSTMENTS MEASURINGPOINTS, RESULT 9. Bias osc frequency13. Record level12. MPX filter MPX10. Step up coil11. Record bias16. Overall S/N

36、ratio14. Total harmonic distortion15. Overall frequency responseLINE OUT: -7.5 1dBRatio of ref.level to noiseRatio of ref.level to signalAfter adjusting, do not move(Specific position)40250+6dB-6dB12.5k (Hz)9LINE IN: 1kHz/+1dBRatio of the 1kHzrecorded portion to theerased portion.Ratio of Lch (1kHz)

37、 toRch (no signal).Invert tape and play Rchtrack. Check leakagelevel against the outputreference of previouslyrecorded portion.Ratio of the 1kHzrecorded portion to theREC MUTE portion.LINE IN: 1kHz/+1dBCheck65dB min.55dB min.35dB min.40dB min.CheckCheckCheckLINE IN: Lch 1kHz/ -9dB Rch No signal Rch

38、125Hz/ -9dBLINE IN: Lch No signalConnection:Fig. 2-3TAPE: MTT-55721kHz B.P.F inConnection:Fig. 2-3TAPE: MTT-55721kHz B.P.F inConnection:Fig. 2-3TAPE: MTT-55631kHz B.P.F inConnection:Fig. 2-3TAPE: MTT-5572ITEMREMARKSSETTINGINPUT SIGNALADJUSTMENTS MEASURING RESULT17. Erase efficiency18. REC MUTE funct

39、ion REC MUTE19. Channel separation20. Adjacent track crosstalkFig. 2-3Fig. 2-4Fig. 2-510U47Q3U44U55 U45U42U52Q53U50Q6Q1U51U41Q2Q7U49Q5U48 U54Q4U43CONTROL PCB/KEY PCBPHONE PCBVR PCBSLIDE PCB5. SCHEMATIC DIAGRAM AND PARTS LOCATION1112SW1SWSTOP ISW8SWFWD ISW15SWREV ID91SS133TD161SS133TD231SS133TF11F12N

40、P31G42G53G64G75G86G9NC10NC11P1712F231F230NP29P1628P1527P1426P1325P1224P1123P1022P921P820P719P618P517P416P315P214P113FL1BJ185GKKEY PCBEURSW2SWFF ISW3SWSTOP IISW4SWFF IISW7SWCLEAR ISW14SWCLEAR IISW9SWREW ISW10SWFWD IISW11SWREW IISW17SWREV IISW18SWPAUSE IID111SS133TD101SS133TD121SS133TD151SS133TD171SS1

41、33TD181SS133TD191SS133TD221SS133TD251SS133TD261SS133TD291SS133TSW16SWN DUBSW23SWHS DUBSW22SWSYNC REVD27A1SS133TD20A1SS133TD13A1SS133TSW24SWREC IISW25SWMUTED331SS133TD341SS133TBC(TO MAIN PCB) 1 2 3 4 5J3045P1 234SW27ANR SWR8322KD411SS133T(CPS)R8122KR8222KD351SS133T123456P5016P123456J5016PB3B4B1B2B3B4

42、B1.4R8022K 3 2 1U56SBX1976-52C1147u16VPE1/INT11PE2/INT22PE3/INT33PE4/RMC4PE55PE6/RMCO6PE77PB08PB19PB210PB311PB412PB513PB614PB715PA0/AN016PA1/AN117PA2/AN218PA3/AN319PA4/AN420PA5/AN521PA6/AN622PA7/AN723AVDD24AVREF25PF0/SCL026PF1/SCL127PF2/SDA028PF3/SDA129AVSS30EXTAL31XTAL32VSS33RST34PC0/KR035PC1/KR136

43、PC2/KR237PC3/KR338PC4/KR439PC5/KR540PC6/KR641PC7/KR742VFDP43PD0/S044PD1/S145PD2/S246PD3/S347PD4/S448PD5/S549PD6/S650PD7/S751S852S953S1054S1155T15/S1256T14/S1357T13/S1458T12/S1559T11/S1660T10/S1761T9/S1862T8/S1963T764T6 65T5 66T4 67T3 68T2 69T1 70T0 71VDD 72TX 73TEX 74NC 75PG0 76PG1 77PG2 78PG3 79PE0

44、/INT0 80U42CXP82940P305P318TOMAIN PCBTOCONTROLPCB 1 2 3R88100R87100D8 MTZJ3.9B 1 2 3 4 5J4015P 1 212P3182P PLUG0VTRANS. PCBAC CORDAC230V50HzS401POWER SW 1 2 3 4 5121314151617POWERTRANS.W172DM0VTRANS. PCBS401POWER SWAC CORDAC100V50-60Hz 1 2 3 4 5121314151617POWERTRANS.W170HS DUBR/P HEAD IIR/P NRPLAY

45、MUTE(TO TRANS. PCB)P305P318TOMAIN PCBTOCONTROLPCB 1 2 3123456789101112J307 12PPLAY I 1 2 3 4 5J4015P 1 2C10100u25VE1E2E3E4E9E10E11R73 22KR74 22KR7222KB2B1X18MHzR95470MECH IPLAYOFFRECD2 1234SW26ATIMER 1234SW21AREV MODE12345678910 1 2 3 4 5 6 7 8 9 10J31910P+-OFFBCOFFABSLIDE PCB5 678SW27BNR SWGNDPLAYS

46、OLCrO2TAPE470+5VC1C2D1E9E10R7782KMOTOR IISOL IIC90.022u(CE)A3A4A1A2GNDE11E12SOLIMOTORIE1E2E3E4E5E6E7E8E12U51DTA114ES+5VC80.01u(CE)E5E6E7VR110K(B)VR210K(B)E8D2R461KE1.12R9110KR895.6KMETER R-CHMETER L-CHREC MUTE II(TO MAIN PCB)P305P318TOMAIN PCBTOCONTROLPCB 1 2 3PLAY II 1 2 3 4 5J4015P 1 2CPS0VTRANS.

47、PCBNAC CORDAC120V60HzS401POWER SW 1 2 3 4 5121314151617POWERTRANS.W171ULR8422KX1X0X123P5033P PLUGD1GNDR8622KR8522KD50 1N40031234567891011121314U45BU4066BC(I LOW)(I HI)R4722KU52DTC144ESR901KR504.7KR511KR524.7KR544.7KR551KR571KU47DTC124ESU48DTC124ESU49DTC124ESU50DTC124ESQ32SB1237TV2QQ42SB1237TV2QQ52SB

48、1237TV2QQ62SB1237TV2QR531KD511N4003GNDR564.7KMECH IIC3C4D3D4R7882KR94 22KR93 22KR92 22K12345678910111213 1 2 3 4 5 6 7 8 9 10 11 12 13J32013P+-AB470PLAYSOLTAPEMETALCrO2F.RECR.REC+5VR4422KA4C1.4D1.4A1.4132U41TA78L005APR4222KQ22SC1815GRA1A2A3C2C3C4R621KR6422K(TEST PIN)C3330u25VQ12SA1015GRD21N4003VR410

49、K(B)U44DTC124ESD3D4C1D41SS133TR4522KR4927KVR310K(B)GNDU55DTC124ESU54DTC124ES(II LOW)(II HI)R4815KW333W332U43DTC124ESU53DTC124ES 1 2 1 2J5042P12P5042P PLUG1325J33REMOTE IN/OUT JACKREMOTE PCBCONTROL PCBR45047C4500.1u(CE)C1100u35VR41820D31N4003D1MTZJ22CC2220u35VR4310KC610u16VR6310KC40.047u(CE)Q72SC1815

50、GRGNDCrO2IIMETALIICrO2I+5VACDC(TO MAIN PCB)D51N4003C7220u25VC510u16V123456789J3089PU342Q301U201U101U329U330U340U343U301U302U304Q306Q102 Q202U303Q304 Q203 Q103U339Q302 Q303U322U325U335U328U331U324U348U347U349U327U321U336U305U308U307U366U312U345 U337U332 U309U346U341MAIN PCB/TR PCBU7Q3071314SELECTOR S