Sony-M101-tape-sm 维修电路原理图.pdf

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1、M-101 (Panel: Silver)Power Requirements:Power Consumption:Power Output:Recording System:Tape Speed:Fast Winding Time:5 W ac with Sony AC Power AdaptorAC-31 (US, Canadian model)7.2 Wac (50Hz) 6.8 Wac (60Hz)with Sony AC Power AdaptorAC-32 (E model)150 mW (max.)2-track l-channel monaural2.4 cm/s (1716

2、ips)Approx. 1 minute 30 secondswith Sony Micro cassette MC-60Frequency Response: 200 - 7,000 HzBattery Life: Continuous recording hours:Approx. 2 hours with Sonylong-life battery size-AAApprox. 4 hours with EvereadyHeavy Duty Battery No. 1215Approx. 7.5 hours with EvereadyAlkaline Batterv No. E91US

3、ModelCanadian ModelE ModelM-101B (Panel: Black)US ModelMICRO CASSETTE-CORDERSPECIFICATIONS3V dcBattery size-AAInput:(IEC Designation R6). 2 pcsRechargeable Battery Pack BP-31 (optional)120 V ac, 60 Hz with Sony AC PowerAdaptor AC-31 (optional) (US, Canadian model)110, 120, 220 or 240 V ac, 50160 Hz

4、withSony AC Power Adaptor AC-32 (optional)(E model)output:Speaker:Dimensions:Weight:Approx. 64(w) x 26 (h) x 143 (H) mm29/h (w) x 11/16 (h) x 5l1/16 inchesnot including projecting parts and controlsApprox. 350 g, 13 ozincluding batteriesSONYSERVICE MANUALMIC (mini jack)Maximum sensitivity: 0.2 mV (-

5、72dB)Impedance: Low-impedancemicrophoneEARPHONE (mini jack)Load impedance:8a earphone ormore than 10 kn4.5 cm (1 3/4 inches) dia.RadioFans.CN 收音机爱 好者资料库RadioFans.CN 收音机爱 好者资料库7 M-101/101B3-2. ELECTRICAL ADJUSTMENTSPRECAUTIONClean the following parts with a denatured-alcohol-moistened swab:Record/Pla

6、yback head Pinch rollerErase head Rubber beltsCapstan IdlersDemagnetize the record/playback head with ahead demagnetizer.(Do not bring the head demagnetizer close tothe erase head, and do not use a magnetized screw-driver for adjustments).After the adjustments, apply the locking com-pound to the adj

7、usted parts.The adjustments should be performed in the orderlisted in this service manual.1. Tape Speed AdjustmentSetting:Power source: 2.5 V dcProcedure:1. Mode: playbackrest rapeWS-2413 kHz, 0 dB)speed checker (SONY L FM-30or digital frequency counterEARPHONE1) Adjust R18 for 0 % on the speed chec

8、ker or3000 Hz on the digital frequency counter.2) Following specifications should be satisfied withthe power source from 2 V dc to 3.5 V dc.3) Specifications:Speed checker Digital frequency counter+3%- 2.5 %2925 Hz 3090 HzFrequency difference between beginning andend of tape should be within 1 % (30

9、 Hz).Adjustment Location:R18-6-SECTION 6ELECTRICAL PARTS LISTRef. No.Ref. No. Parr No. Description- -PRINTED CIRCUIT BOARDPart No. Descriptionl-131-264-11 0.47 2 o v1-131-273-11 0.033 35 v1-131-264-11 0.47 2 o vl-131-254-11 110V1-131-393-11 473.15vl-131-254-11 110vl-131-177-11 1006.3Vl-108-373-12 0.

10、0047100v mylar1-131-393-11 47 3.15 vl-l 31-256-11 1010vl-l 31-264-11 0.47 2 o v1-131-251-1 1 1010v1-131-253-1 1 33 6.3 V1-131-251-11 4.7 6.3 Vl-102-1 10-11 220 p 5 o v ceramicRESISTORSCl1Cl2Cl3C14,15C16C18Cl9C20c21c22C23C24C25C26C27C28l-584-800-00 Audio AmpSEMICONDUCTORSQ1 Transistor2SC1859BX283ABX2

11、84BX285BX286ABX287BX288BX290TLR109S-1OkIClIC2IC3IC4IC5ICICICICICIC6IC7LED1ThICICDiode1-800-202-Xx ThermistorAll resistors are in a, and 1/16 W carbon resistors unless otherwisenoted.MICROINDUCTORRlR2R3R4R5R6R79RlORllR12R13R14R15R16R17R18R19R20R21R22Ll l-407-847-00 35 Hl-210-353-11l-224-754-00l-210-3

12、95-1 11-246-484-1 11-209-773-I 16810 k variable, PB VOL473k1/8 w4.7TRANSFORMERSTlT2l-433-191-00 Bias OscI-427-41 l-00 RecordCAPACITORS l-21 0-840-l 1I-210-355-11l-210-846-11l-210-353-11l-201-978-1 1220k10033681001/8 w compositionAll capacitors arc in F and of tantalum unless otherwisenoted. (p = F)C

13、l l-161-190-1 1 0.001 25 V ceramic(boundary layer)3 5 v4 v10v6.3V10v3.15v10V10v6.3 vl-210-844-1 11-21 O-365-1 1l-210-360-1 1l-209-768-1 1l-210-355-1 1470k3901802.2k100c2 l-l 31-273-1 1C3 l-131-288-1 1c4 I-131-254-I 1C5 l-l 31-251-l 10.033474.7C6 1-131-256-1 1C7 1-13 l-395-11C8 l-l 31-256-l 1c9 1-131-254-l 1Cl 0 1-131-253-t 11010010l-224-727-00 2 k adjustablel-209-768-1 12.2kl-209-768-1 1 2.2 kl-210-365-1 1 3901-210-111-11 12k33