Technics-RSB965-tape-sch 维修电路原理图.pdf
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1、ELEKTRONIKIELEKTRONIKIELEKTRONIKIELEKTRONIKIELEKTRONIKIELEKTRONIKIELEKTRONIKIELEKTRONIKIA MAIN CIRCUITQ142SK170BLVTPPLAYBACK EQ CONT.R34.7KL chCP1712R168KC1150P0VGQ3(E, EB, EG, GC, GN)areasR54.7KC30.018R1411K3.1VQ13.1V0.3VSSDD0.3VG0V3.1V23.1V3-+6.8V810VIC1(1/2)R21 22KIC2(1/2)6.8VC1147PR25 22K0V 2+-8
2、40V0VR23 22K3-7V6.8VPLAYBACK GAINADJ. (L ch)R27 330L12.7mHC1725V10C701200PR291.8KVR35K(B)C15 00120.027-(PP)0.01- othersC13R201 18KIC1,2M5219LPLAYBACK EQ AMPR202 18KQ582SK381BCDTAPLAYBACK EQ CONT.R7 4.7KR947C76.3V47012K-(PP)15K-othersR15R17 560KC5 5600P0V0VSDQ5G -10.6VR112.2M0V0VDGSQ7-2.7VR132.2M-7VC
3、9 1500PR19 10KR4278.2KR463 18KIC451CX20187DOLBY NR (B/C)6.6VIC4510V0VR4652.2K0V0V0V0V0V6.6VR46710KR4972.2KC47150V4.7R4511.6KC451 680P14L451R4534300V0V-6.6VC453 4700PR457 6.8KC4550.47C4570.15-6.6V 0V0V0V-6.6V-6.4VC459 0.015C4610.220VC4630.068C4650.047R459680C467 6800PC469 0.01baIC76.6V-7V(-6.4V)6.6V0
4、V0V0V0V0V0V0V 0V-7V -7V-7V(4V)1234567891011121314IC7, 8MN4066BNR SELECT123456789101112131415161718192021R155100K0V0V56815V74+-15V0V-15VIC5(1/2)R35 100R3922KC7947PR4110KIC5, 6M5218LCLASS AA AMP+-R313.3KR333.3KR371KC1925V22R4310K0V1320V0VIC5(1/2)R45100R47100KJK1-2L chLINE OUTPLAYBACK HEADR ch43R44.7KR
5、64.7K(E, EB, EG, GC,GN) areasR268KC2150PR1421KC40.018DS0.3V0VGQ43.1VQ2R8 4.7KDS3.1VG0V0.3VIC1(1/2)3.1V3.1V657 0V4-7V-+R2222K12K-(PP)15K-othersR1047C86.3V470R18 560KC6 5600PSD0V0VG-10.6VQ6R122.2MR20 10KSD0V0VG-2.7VQ8R142.2MC10 1500PIC2(1/2)0V0VR2422K0V576R26 22KC12 47PPLAYBACK GAINADJ. (R ch)R28330L2
6、2.7mHC1825V10C691200P0.027-(PP)0.01-othersC16 0.012R301.8KVR45K(B)MODECTRLREFMOAMOA6.6V-5.7VR464 18K-7V0VR461100K7VR466 2.2KR468 10KHLSHLSH DETH DET0V0V0V0V-6.6V -6.6V0V-6.3V-6.5VL DETL DETL LSL LS0V0V0VC4700.01C4686800PC4660.047R460 680C4640.068C4620.22C460 0.015R458 6.8KC4580.15C4560.47C4544700PR4
7、5443041L452C47250V4.7R4982.2KC452 680PR452 1.6K424140393837363534333231302928272625242322IC86.6V-7V(-6.4V)6.6V0V0V0V0V0V0V0V0V-7V-7V-7V(4V)1234567891011121314C931001R680 22KD651MA165TAD926MA165TAD928MA165TAD927MA165TAR4210KabIC6(1/2)0V5+-0V64-15V15V87 0VR36100R4022KR323.3KR3433K0V0V0V+-132IC6(1/2)R3
8、81KC2025/22R46100RLY2C8047PC5510.033C5520.033R48100KR chR156100KC901 8200P15V0V0V0VR204 820C90216V10R20510032+-8115VR21282KC90347PIC13M5218LMUSIC SELECTORIC13(1/2)R20639KIC13(1/2)0V567+-R207C91050V22R208 100K1.5V4-15V-13.8V3.3K-(PP)4.7K-othersD921MA165TAC904 50V1R2091KD922MA165TAQ9452SC3311AQSTAMUSI
9、C SELECTORR21047KabQ9450VR21110K4.6V27-(EB, GN)120-othersQ6186.6V14.8V R6397.2VC6190.01R6402.2KC638 10V100C637 10V100R6412.2KC63510V100C63410V100C63610V100C63210V100C6200.01-7.5VR6432.2KQ61615V6.8V7.4VC6160.01R6282.2KC63310V100C63110V100R6322.2KR6272.2K-7.6VC6150.01R6312.2KR425 10KQ616, 6182SD592AQR
10、STAREGULATORQ617, 6192SB621ARSTAREGULATORQ15, 162SA1309AQSTAREC CAL. CONT.Q172SC3311AQSTAREC CAL. CONT.IC502AN6294NKdbx AMP15VC85125V226.6VR853 3.6KR8576.2KC8530.015C855330PR85991KR855 24KC87750V3.3NC85710V22C8633300PR8614.7KC8590.1C861 0.1R86333KR86733KC8653300PC867330PR8656.8KC8690.18C8751800PR879
11、430R86918KR87118KC8710.018C873 25V22R8772.2MR873 12KR8751.1KR68(-6.3V)22K -15VC9320.01R68247K6.6VQ61414V(-7V)6.5VQ937-7VR21822KR217 22KR216 22KC933 4700PC934 4700PR633abcdef27-(EB, GN)120-othersR213 47KR215 47KR214 47K16.2VCN6A(1/2)CN68765567W6S719(-OPEN/CLOSEIC701, 702M5218LCLASS AA AMP(HEADPHONES)
12、16.2VC702 50V1VR701-1 10K(A)0V28116.2V3-+IC701(1/2)IC701(1/2)0V0V0V0V0V+-JK2564-16.6V7R72133R7273.3KR7251KR72310R719 18C701 0.022LINE INL chJK (-)R chJK3-15VR4927KC2325V10Q9Q10R5027KR14327KC2425V10C2525V10Q9, 102SC3311AQSTAMUTING0V0.3VR5122KR5222K0VD923MA165TAQ11142SA1309AQSTAMUTING7Vabcd0V382+-0V0V
13、1-6.8V-14.8VR644-7V-15VQ61727-(EB, GN)120-othersL chCDDIRECT INR chQ11Q12R14427KC2625V10OV-0.8VR5322KOV-0.8VR5422KD924MA165TAR997 2.2K-6.8VD925MA165TAQ14R5833K-0.8V0VR565.6KR6422KC2839PR6036KRLY10V0V0V64-6.8V75+-C3025V10IC3(1/2)R6210KR1585.6KR61 10KabQ130VR57 33KR55 5.6K-0.8VR6322KC2739PR5936KR157 5
14、.6KC2925V106.6VIC3(1/2)IC3M5238LBUFFER AMP(REC)Q619IC9MN4066BSWICHINGcdeR9912.2KR995 10KIC96.6V4.6V 4.6V0V0V0V0V0V0V0V0V-1.4V -1.4V-6.8V1234567891011121314R669 4.7KQ180VQ182SD1450RSTAREC CAL. CONT.-1.4VR996 22KD14MA165TAD4D3C360.027R72 22KR74 8200V0V0V23+-14-6.8VR7033KR6747KIC4(1/2)C33 0.01C340.01R6
15、847KVR9 5K(B)R803.3KIC4(1/2)0VIC4M5218LREC CAL. CONT.D2D15+-R69 5.6KC353300PREC CAL. ADJ.(LEVEL)R71 6.8KR73 8200V6786.6VC32 1200PC311200PR6515KR6615KVR10 5K(B)REC CAL. ADJ. (BIAS)R137 3.9KQ156.6VR1381.8K0V-0.8VC37 25V10R77390R795.6KC3825V10R822KR812.7K0VQ17Q16-0.8V-0.8VR78 390R99410KdaceIC502Block d
16、iagram of IC502indicates Rch only+-DeOFFEnDeOFFEn6.6V0V0V0V0V0V0V0V0V0V0V0V0V0V0V0V0V0VEnEnEnEnEn6.6VOFFOFFOFFOFFOFFDeDeDeDeDe+-0.1V-6.2V -6.6V-7V-7V1234567891011121314-6.6V-6.2V1516171819202122232425262728NC852 25V22R8543.6KC87820V3.3C85810V22R876 1.1KR87412KR856 24KC856 330PC860 0.1C862 0.1R868 33
17、KR8586.2KC8540.015R86091KR862 4.7KC8643300PR864 33KC8663300P15V-15Vdbx TIMING ADJ.Q6152SB621ARSTAREGULATORQ6142SD592AQRSTAREGULATORdbx TIMINGADJ.TEST POINTQ9372SD1450RSTASTABILIZERTP4TP3C870 0.18C868C8720.018R87018KR872R8782.2MC8761800PR880430C87425V22VR5025K(B)R8811K-7VQ615C630 10V100-7.6VR634 2.2K
18、C6170.017.2VC629 10V100R636 2.2KR635 2.2KR6372.2KC628 10V100C627 10V100C6180.01-14.6VR63827-(EB, GN)120-othersacdeCN6A(1/2)abc-16.6V34214321(PHONES LEVEL)C70350V1VR701-2 10K(A)onstanbyIC702(1/2)!(POWER)S718-10V0V+-2310V4-16.6VonstanbyS718-291088109BPOWER SWITCH/HEADPHONES CIRCUITCN112345acdebHEADPHO
19、NESR720 18R72410R7261KR7283.3KR722330V78+-6516.2V0V0VIC702(1/2)C39 50V10CP1abcde123456.6V-6.8VR140100KR139100KCdbX / DOLBY NR CIRCUITR4212.7KR431 22KC401 1200PR401 680K0V123654L4010V-0.3V-0.3VQ401Q4036.6VIC401CX20187DOLBY NR (B/C)IC4010VMODECTRLREFR417100K5.6VR422 2.7K321456L402R432 22KR402 680KC402
20、 1200P0V0V-0.3VQ402Q404Q4014042SD1450RSTAMPX CONTROLC801 25V22R803 22KR8076.2KC8030.015R80991KC805 330P6.6VR805 24KNC80710V22IC5016.6V0V0V0V0V0V0V0V0V6.6V6.6V-6.1V -6.4V0V0V0V0V0V0V0V0V-6.1V-6.4V-6.8V-6.8VBlock diagram of IC501indicates Rch only+-OFFOFFOFFOFF+-OFFOFFOFF+-DeDeDeDeEnEnEnEnEnDeDeDeEnEn
21、12345678910111213141516171819202122232425262728C802 25V22R80422KC40 50V10IC501AN6294NKdbX AMPR8086.2KC8040.015R81091KR806 24KC806 330PC80810V22C8143300PC818330PR816 6.8KC8163300PR814 33KR818 33KC820 0.18R812 4.7KC810 0.1C812 0.1R82018KR8282.2MR8221,8KR824 12KC8220.018C826 1800PC82425V22C82850V3.3R82
22、61.1KC809 0.1C823 25V22C82750V3.3R8251.1KC811 0.1R8114.7KC8133300PR81333KR8156.8KC8153300PR817 33KC819 0.18C817330PR81918KR8211,8KR8272.2MC8210.018R823 12KC825 1800PR8293.3K-(PP)3.9K-othersR404 680KC404 1500P-6.8VR4245.1K0V0V0V0V0VR406 1.8KTP14R408 3KC406 680PR4123.6KL40414R410430C4100.47C4084700P6.
23、6V0V0V0V0V0VM0AM0AHISHISTP13R4235.1KR407 3KR403 680KC403 1500PC405 680PL403R409430C4090.47R405 1.8K41C407 4700PR4113.6K123456789101112131415161718192021222324252627282930313233343536373839404142H DETL DETLISLISL DETH DET0V0V0V0V0V0V0V0V0V0V-6.5V-6.5V-6.2V-6.3V-6.5V-6.5V-6.5V-6.5V6.8VR413 6.8KC413 0.
24、015C4110.15C417 0.068C415 0.22R415 680C421 6800PC423 0.01R4298.2KC4190.047C42550V47R433470R440 33K-6.8VC4120.15C4140.015R4146.8KC416 0.22R416680C4200.047C418 0.068IC1112345678910111213146.6V -6.8V0V0V0V0V0V0V0V6.6V-6.8V-6.8V-6.8VIC12-6.8V6.6V0V-6.8V0V0V0V0V0V0V-6.8V-6.8V6.6V1234567(4.8V)891011121314
25、3.3K-(PP)3.9K-othersR830IC11, 12MN4066BNR SELECTR4208.2K-(PP)18K-others987654213CP2(4.8V)8.2K-(PP)18K-othersR419C42650V47C4240.01R434470R4308.2K123456789101112131415161718192021-+C14R16+BR6422,2K-B+B-BR4410K+B-BR8666,8K330P1,8KC4226800PNMagnetofon kasetowy Technics RS-B965SERWISELEKTRONIKISERWISELEK
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