Teac-Tascam302MK2-tape-sch 维修电路原理图.pdf

TASCAM 302MKIISCHEMATIC DIAGRAMSCONTENTS 目次MAIN PCB (1/2), TR1 PCB, TR2 PCB, TR3 PCB.Page 1/7MAIN (2/2) PCB.Page 2/7ANALOG SW PCB.Page 3/7EQ-BIAS PCB.Page 4/7FRONT PCB, CONTROL PCB, KEY 1 PCB, KEY 2 PCB.Page 5/7PHONE PCB.Page 6/7TRANS 1 PCB, TRANS 2 PCB, POWER SW PCB, SW PCB.Page 7/7回路図RadioFans.CN 收音机爱 好者资料库2134567BACDE SCHEMATIC DIAGRAM302MKIIMAIN PCB (1/2), TR1 PCB, TR2 PCB, TR3 PCB（Page 1/7）2 MechaR ch TO VRCr2L ch TO VR0.23A133METAL2PWR DOWNL ch FROM VRREC SIGNAL Lch2SHORT:High Speed1REMOTE7231 MechaPOWER MUTEL ch TO VR+2.7VB/C/OFF1Norm Speed/PLAY:VARI 11 to 130.15ADC12VHIGHGND12GNDRECM1LINE IN Rch2 from LEVEL VR+12VLEVELBIAS1PITCH CON2B/C/OFF2FRONT PCB1MECHA0.35ATX CLK1SPDCOM1222+5VBALANCEGNDMETAL1*CUE1+12VPITCH CON1LEVELNorm Speed/REC:VARI 12 to 13+7VC.TAC3.4V3561LINE IN Rch1 from LEVEL VR+7V+5VCr1+5VHSBALANCETo EQ_BIAS PCBDC30VTX DATA13to LEVEL VR Rch1PB IN Lch1PB IN Rch1GNDPB IN Rch2+12VGNDHi Speed:VARI 11,12,13 OpenTO CONTROL PCB J500CONTROL INSPDVAR1+5V7TR3 PCB-7VLINE IN Lch1 from LEVEL VRB/C/OFF1BIAS2HSTO CONTROL PCB J505611J701to LEVEL VR Lch2to LEVEL VR Lch1GNDMAIN PCB (1/2)2MECHARX CLK1To TRANSTR2 PCB41/2RECM2LINE IN Lch2 from LEVEL VRPB IN Lch2REC SIGNAL Rch1PLAY/*REC1PLAY/*REC1-7VJUMP FOR OTHERPLAYM1B/C/OFF2PARAPLAY/*REC2REC SIGNAL Rch2PLAY/*REC2HS+5V3TO FRONT PCB J509(ML)DUBPLAYM2to LEVEL VR Rch2+12VRX DATA*HS2TR1 PCB1FR1,FR2,FR3 FOR EUR,230E-Y,AUS,UK,KOR1TO FRONT PCB J50958J506REC SIGNAL Lch1MAIN PCB (2/2)-20V*HS1HIGH+7V6*CUE2R ch FROM VR24+7VR ch TO VR33REMOTESPDFIX1R ch FROM VRL ch FROM VRGND31CONTROL OUTTo CONTROL PCBN.C.N.C.N.C.3C.W.C.W.C.W.C.W.12345678910123456776543213REW2PLAY/*REC2PITCH CON1REW116*SOL2*SOL18FF1PLAYM2*CUE2PLAY1102CUERM2REW2FF26PLAY2*HS16CUERM2PLAY2RECM24NORMALFF2PITCH CON2REW1DUALSPD19FF1*SOL1NORMAL6+2.7V116*SOL2SPD2PLAY1-20V*CAP21/233SPDVAR137SPDFIX24SPDFIX2TX DATA5SCLK1422RX CLK25CUERM1+5V5Cr113SSEL1RECM1TX CLKMETAL12PLAYM111SDATA1+5V4SPDFIX14Cr23227CUERM1SRESET5241SCLK19-7VTX DATA+7V3RX DATAMETAL244PLAY/*REC141REMOTEREMOTE18PWR DOWN47SRESET722ACSDATA1103SPDVAR22*CUE17RX DATA3SSEL18AC22SPDVAR27855AC1AC1TX CLK43RX CLK251*CAP1BIAS2BIAS1DUBQ503DTA124ESC5260.1(CC)R5292.7KP5064P-PH (RED)P3017P-PH(RED)C53210/25Q5092SC2120YC5220.01D5011SS133D5071N4003C517100/16R5041KC5240.01(CC)U509BA621956148710293FINRINGNDVREFVCC2VCC1OUT2OUT1VZ2VZ1C5290.1(CC)D5211N4003P1017P-PH(WHT)100K(W)Q511DTC124ESJ503R5202.2KQ508DTC124ESD504LT2A05D514 LT2A05Q5102SC2120YP5054P-PH (WHT)50K(A)R525 22KR5064.7KC513100/16Q506DTA124ESR5110K(B)C5301000/16R5401KR51647KU501 NJM317INOUTC5164700/16D506LT2A05C5114700/25R5102.7KC5191/50EARTH PLATEU504TLP521-212348765R5382.7KP1058P-XHR54747KC514100/16R513180R512470D5081N4003R515100K50K(A)C521100PU510 405312132153611109141547816X0X1Y0Y1Z0Z1INHABCXYZVEEVSSVDDC51210/25FR2RESISFUSER501100KC5044.7/50R523240R54547(1W)C523100/16D525RD4.7EB2C506100/25D5091N4003D5101N4003R52422kR5222K(B)D515RD4.7EB218KR511470U507 405312132153611109141547816X0X1Y0Y1Z0Z1INHABCXYZVEEVSSVDDP114P-PHR53647(1W)Q5012SC1815GRR521240R5310K(B)U508BA621956148710293FINRINGNDVREFVCC2VCC1OUT2OUT1VZ2VZ1D5181N400318KP5075P-PHQ5022SA1015GRQ517DTC124ESR54822KC515100/16U505NJU3714D1234567891020191817161514131211P5P6P7P8VSSP9P10P11P12SOVDDP4P3P2P1VSSCLRSTBCLKDATAC5010.022P153P-PHC5350.047C50810/25R517200KR5422K(B)C5270.01(CC)18KU503CXA1511L1234567812345678U506NJU3714D1234567891020191817161514131211P5P6P7P8VSSP9P10P11P12SOVDDP4P3P2P1VSSCLRSTBCLKDATAFR1RESISFUSER508120P5047P-PHR50247KQ5042SA1015GRR52222kR53210KR54110KR5311KR514100KR5032.2KP50211P-PHC5340.022C5020.01(CC)Q5132SC2120Y18KJ501R5192.2KQ5122SC2120YR507560C5104700/16D5111N4003J510D505LT2A05C50510/35C5072.2/50Q507DTA124ESP10311P-XH100K(W)C5200.1(CC)D517MTZJ4.3BT72C53310/25P5018P-EHR53310KR53724KC518100/16Q514DTC124ESQ516DTC124ESFR3RESISFUSER54210KD522RD4.7EB2R5391KD523RD6.8EB2J502C5250.01(CC)D516MTZJ2.7BT72C5094700/16R5093.3KD519RD4.7EB2Q515DTC124ESP5038P-PHC5280.01(CC)D524RD4.7EB2R527TP5122KR55122KR5267.5KD5031N4003D502MTZJ20CR51847R5301KD520RD6.8EB2P1047P-XHC503100/50R52824KD5121N4003U502 78M05INOUTQ5052SB1134RD5131N4003P163P-PHP5087P-PHDouble Auto Reverse Cassette Deck302MKII1 st Issue; January 2002RadioFans.CN 收音机爱 好者资料库2134567BACDE SCHEMATIC DIAGRAM302MKIIMAIN PCB (2/2)（Page 2/7）-7VACB-7V+7V-7VGND1 Mecha2 MechaRECM1SLVDUB1/2PLAYM1SLVMSTMSTSLVHSMETAL1Cr1RECM1PLAYM1HSDUB1/2METAL1Cr1B/C/OFF1B/C/OFF1B/C/OFF2RECM2PLAYM2DUBHSMETAL2Cr2PARAMSTB/C/OFF2Cr2METAL2PLAYM2RECM2PARALINE IN Lch1SLV OUT Lch1LINE IN Rch1SLV OUT Rch1LINE OUT Lch1LINE OUT Rch1LINE IN Lch2LINE IN Rch2LINE OUT Lch2LINE OUT Rch2to LEVEL VR Lch2to LEVEL VR Rch2LINE IN Lch2 from LEVEL VRLINE IN Rch2 from LEVEL VRPB IN Lch2PB IN Rch2REC SIGNAL Lch2REC SIGNAL Rch2to LEVEL VR Lch1to LEVEL VR Rch1LINE IN Lch1 from LEVEL VRLINE IN Rch1 from LEVEL VRPB IN Lch1PB IN Rch1REC SIGNAL Lch1REC SIGNAL Rch1LINE IN Lch1LINE IN Rch1NR REC OUT Lch2NR REC OUT Rch2NR REC OUT Lch2NR REC OUR Rch2REC SIG.Rch2REC SIG. Lch2REC SIG. Rch2REC SIG.Lch2HS METALHS CrHS NORMALLS METALLS CrLS NORMALHS METALHS CrHS NORMALLS METALLS CrLS NORMAL-7V+7VSLV+5V+5VGNDGND+12VPOWER MUTEPLAY/*REC2PLAY/*REC1PLAY/*REC1PLAY/*REC2+5V+5VTo 2/1To 2/1To 2/1To 2/1To 2/1PLAYM2B/C/OFF1B/C/OFF2MODE 2MODE 1SLV,MSTLINE OUT Rch1LINE OUT Lch1PLAYM2PB IN Rch2DUB,HS,1/2LchLchB/C/OFFCBOFFCOMMONSEVERALCOMMON/SEVERALVcc-7VGNDVcc-7V4051&405231LINE IN 1LINE OUT 1SLAVE OUTLINE IN 2LINE OUT 21210+7V+12V+7V+5V-7V-7VOp AmpMASTERSLAVEOFFSLVMST005005U104,107,109,304U108,11012345678912345671234567812345To AN_SW PCB P802To AN_SW PCB P803To AN_SW PCB P804To AN_SW PCB P801RchRchPOWER MUTEREC VR Lch 1REC VR Rch 1LINE IN Lch1REC VR Lch 1REC VR Rch 1LINE IN Rch1LINE OUT Lch1LINE OUT Rch1(ML)(ML)(ML)(ML)(ML)(ML)(ML)(ML)TP21TP11TP41TP3110GNDN.C.VeeVssVeePITCH CON1PICHI CON29+5V+5-7+7+7V78816+7V8445R1068.2KR1052.2KR1272.2KR2295.6KR13518KR13927KR146100KR14727KR15427KR16036KR16547KR33124KR33518KR33927KR34727KR35427KR36036KR36547KR3068.2KR30710KR3272.2KR4295.6KC1120.47/50C2120.47/50U104BU4051BC1314151215246111093X0X1X2X3X4X5X6X7INHABCXU109BU4052BC1214151115246109133X0X1X2X3Y0Y1Y2Y3INHABXYU304BU4051BC1314151215246111093X0X1X2X3X4X5X6X7INHABCXL201MPX3216IN21OUTQ2012SC2144SQ103DTA124ESQ109DTC124ESQ2082SC1815GRQ3012SD2144SQ303DTA124ESR16827KD1061N4003J101RCA2X3J102RCA2X2U110ANJM4558D231U110BNJM4558D657R36827KR4122K(B)Q104DTA124ESQ304DTA124ESR2122K(B)R1122K(B)R1042.2KU108ANJM5532D231U108B NJM5532D657Q4012SD2144SQ1102SC1815GRK101HX2-12VQ1012SD2144SR1752.2KR1762.2KR30147KQ305DTC124ESQ107DTC124ESQ112DTC124ESQ106DTA124ESR10147KQ105DTC124ESR3698.2KL102TRAP_COIL12364L302TRAP_COIL12364L402TRAP_COIL12364R2771KR2781KR1771KR1781KQ2142SC1815GRQ1142SC1815GRR10310KD1051SS133D1041SS133R1791KR1801KR3791KR3801KQ1082SC1815GRR18110KR18210KR18315KR38210KR38315KQ312DTC124ESD1071SS133D307 1SS133R1698.2KD1031SS133C5310.047(CC)Q1022SD2144SQ2022SD2144SQ3022SD2144SQ4022SD2144SP1107P-XHP1098P-XHP1085P-XHR13027KR13124KR13239KR13333KR13462KR13633KR13716KR13810KR14091KR14110KR14247KR14312KR14412KR14833KR14922KR15036KR15124KR15227KR15347KR15515KR15618KR15724KR15827KR15947KR16111KR16218KR16322KR16427KR33239KR33333KR33462KR33633KR33716KR33810KR34091KR34110KR34247KR34312KR34412KR34518KR34833KR34922KR35036KR35124KR35227KR35347KR35515KR35618KR35724KR35827KR35947KR36111KR36218KR36322KR36427KC117220PC217220PC417220PC1151/25C10210/25C1084.7/50C2084.7/50C2011/50C11110/25C21110/25C3151/50C4011/50C30210/25C40210/25C31110/25C41110/25C31310/25C31410/25C11310/25C11410/25C1011/50C3182.2/50C1182.2/50C4084.7/50C3084.7/50C1072.2/50C3072.2/50C3120.47/50C4120.47/50R110100KR1082.7KR114100KR1161KR2161KR2082.7KR2096.2KR10220KR214100KR12610KR22610KR2285.6KR36610KR3096.2KR310100KR3161KR4096.2KR410100KR32610KR42610KR3285.6KR3295.6KR12210KR22210KR115220R215220R315220R22310R4254.7KR3254.7KR2254.7KR1254.7KR415220R16710KR16610KR36710KR4272.2KR4285.6KR33027KR3122K(B)R414100KR314100KR1285.6KR1295.6KR12310R4082.7KQ307DTC124ESQ313DTA124ESQ113DTA124ESR1096.2KC41010/25C31010/25U303CXA1598S12345678910111213141516171819202122fXQf/QfMFP CALDGNDREC MUTEREC IN1GNDBOOST1VEEREC OUT1REC OUT2VCCBOOST2IREFREC IN2REC CALGH CALGP CALGLGHGPU103CXA1598S12345678910111213141516171819202122fXQf/QfMFP CALDGNDREC MUTEREC IN1GNDBOOST1VeeREC OUT1REC OUT2VccBOOST2IREFREC IN2REC CALGH CALGP CALGLGHGPU101CXA1561S12345678910111213141516171819202122IREFPBIN2LINEIN2MPXIN2MPXOUT2LINEOUT2TCH2TCL2RECOUT2NRSWVEEVCCMODERECOUT1TCL1TCH1LINEOUT1MPXOUT1MPXIN1LINEIN1PBIB1VCTC2072.2/50R210100KC20210/25L202TRAP_COIL12364L101MPX3216IN21OUTR10710KR30220KC4072.2/50L401 MPX3216IN21OUTL301MPX3216IN21OUTR3082.7KC317220PCXA1561SU30112345678910111213141516171819202122IREFPBIN2LINEIN2MPXIN2MPXOUT2LINEOUT2TCH2TCL2RECOUT2NRSWVEEVCCMODERECOUT1TCL1TCH1LINEOUT1MPXOUT1MPXIN1LINEIN1PBIB1VCTC3011/50R18410KC11010u/25VC21010u/25VD3091SS133R4161KQ315DTC124ESD3011SS133D3021SS133R38410KU107BU4052BC1214151115246109133X0X1X2X3Y0Y1Y2Y3INHABXYR28510KR18510KR2272.2KC1060.068C1050.1C2050.1C2060.068C3050.1C3060.068C4050.1C4060.068R346100KR14518KR38510KQ306DTA124ESP10710P-XHP124P PLUG-EH1234P143P PLUG-EH123P133P-PH123Double Auto Reverse Cassette Deck302MKII1 st Issue; January 20022134567BACDE SCHEMATIC DIAGRAM302MKIIANALOG SW PCB（Page 3/7）EDFGLINE OUT Lch1LINE OUT Rch1GNDREC Sig Rch 1LINE OUT Rch 1LINE OUT Lch 1DUBMSTPB IN Rch 1SLVto LEVEL VR Rch 2to LEVEL VR Lch 2LINE OUT Rch 2REC SIG Rch 2REC Sig Lch 2123451/2PARA-7V+7VPB IN Rch 2+5VLINE IN Lch 21234567LINE OUT Lch 2to LEVEL VR Lch 2LINE IN Rch 1LINE IN Lch 1LINE OUT Rch 2LINE OUT Lch 2LINE IN Rch 22345678to HEAD PHONE Amp Lch 1to HEAD PHONE Amp Lch 2to HEAD PHONE Amp Rch 1to PHONE PCB J601to HEAD PHONE Amp Rch 2+7VGND-7Vto CONTROL PCB J507to METER A/D Lch 2to METER A/D Rch 1to METER A/D Lch 1CPS 1CPS 2MSTSLVCOMMON/SEPARATE+7V-7VVcc-7VGNDVcc-7VOp Amp4052U801,802,901U803,804,903,904to MAIN PCB P107to MAIN PCB P108to MAIN PCB P109to MAIN PCB P110to METER A/D Rch 2(LINE OUT Rch 1)(LINE OUT Lch 1)1to LEVEL VR Rch 2COMMON1SLV(1)REC Sig Lch 1SLV(1)MSTCOM1212NCVeeVssVee8+7V47+7V816R80118KR80218KR80347KR80510KR80668R80747KR80815KR80910KR81068R811330KR812330KR813100R814100R90118KR90218KR90347KR90510KR90668R90747KR90910KR91068R911330KR912330KR914100U801BU40521214151115246109133X0X1X2X3Y0Y1Y2Y3INHABXYU803ANJM4558D231U803BNJM4558D657U802BU40521214151115246109133X0X1X2X3Y0Y1Y2Y3INHABXYU804BNJM4558D657U804ANJM4558D231U902BU40521214151115246109133X0X1X2X3Y0Y1Y2Y3INHABXYU901BU40521214151115246109133X0X1X2X3Y0Y1Y2Y3INHABXYU903ANJM4558D231U903BNJM4558D657D8011SS133D8021SS133D9011SS133D9021SS133Q901DTC124ESC8015PC8024.7/50C8044.7/50C8035PC9015PC9024.7/50C9035PC9044.7/50C80810/25C80910/25C9051/50C9060.22/50R917220KC9070.1/50C8060.22/50R817220KC8070.1/50R91633KR81633KR915100C8051/50U905BA335561487293GNDOUTINN.C.87DELAYVCCCUPU805 BA335561487293GNDOUTINN.C.87DELAYVCCCUPP8038P-JQP8047P-JQP8025P-JQR90415KR90815KR815100P8057P-PH1234567P80110P-JQ12345678910P80611P-PH1234567891011U904BNJM4558D657U904ANJM4558D231R913100R91822KR81822KD9031SS133D8041SS133D8031SS133D9041SS133P8092P-PHP8082P-PHR80415KP8103P-PH123Double Auto Reverse Cassette Deck302MKII1 st Issue; January 20022134567BACDE SCHEMATIC DIAGRAM302MKIIEQ-BIAS PCB（Page 4/7）13132212346246+7V-7V1 MECHA12345678131613132212346246+7V-7V2 MECHA123456781316METALCrO2NCMHHHLLL312123123123123456789101112345123456784848331212331212LSLSPLAY/REC1HSCUE1METAL1CrO21PLAY/REC2PLAY1REC1CrO21CUE1PLAY2REC2BIAS2BIAS1CUE2CUE2CrO22METAL21mecha Rch REC_IN1mecha Lch REC_IN1mecha Rch PLAY_OUT1mecha Lch PLAY_OUT-7 VGND+7 V2mecha Lch PLAY_OUT2mecha Rch PLAY_OUT2mecha Rch REC_IN2mecha Lch REC_INPLAY/REC2CUE2BIAS1CUE1METAL1CrO21PLAY/REC1HS+5 VCrO22METAL26BIAS2GNDGND (+5v)7+7 VMETALL chR chL chR ch(CC)(CC)(CC)LLMETALCrO2NCMHHHL100KHz100KHz(ML)(ML)TP32TP33TP12TP13+7Vto MAIN PCBto MAIN PCBto MAIN PCBMETAL(CC)1515C1080.001C203470PC103470PC20710/25R1031KQ2032SC1815GRR2031KC105220/10C1060.027C2060.027C2040.027C1040.027Q1032SC1815GRR101470R1021KR2021KP101EH-5P(WHT)C101330P(CH)C102390P(CH)C202390P(CH)C201330P(CH)R10447KR10591KR1064.7KR1071MR1091.8KR1102.2KC1091/50R20447KR20591KR2064.7KR2071MC2091/50R2102.2KQ104DTC143TSQ105DTC143TSQ106DTC143TSQ1082SC1815GRB657UPC4570CAU101231Q204DTC143TSQ205DTC143TSQ206DTC143TSQ2082SC1815GRQ109DTA124ESQ112DTA124ESQ115DTA124ESQ117DTC124ESQ118DTC124ESU102UPC1297CA123456789181716151413121110VSTVR1VI1PH1CI1CO1VO11VO12GNDVCCVR2VI2PH2CI2CO2VO21VO22VIOQ1192SC1815GRQ1202SC1815GRQ122DTC124ESQ1232SC1815GRQ125DTC124ESR1164.7KR11733R1184.7KR1191KR13212KL101OSC COIL L103220uHL105TRAP(100KHz)Q3032SC1815GRUPC4570CAU301231B657Q305DTC143TSQ306DTC143TSQ3082SC1815GRQ309DTA124ESQ316DTA124ESQ317DTC124ESQ318DTC124ESR301470R3021KC301330PC302390PR30447KR3071MC305220/10C3040.027R3064.7KC303470PR3091.8KR30591KC3080.001C3060.027R3102.2KC3091/50R33212KQ4032SC1815GRR4031KC401330PC402390PR40447KC403470PR40591KC40710/25R4064.7KR4102.2KQ406DTC143TSQ4082SC1815GRC4091/50L305TRAP(100KHz)L405TRAP(100KHz)R43212KC12610P(CC)C12510/25C118100/25C1170.0047C1160,001C1150.001C1140.015C1130.01(PP)C3130.01(PP)C3140.015C3150.001L301OSC COILQ3202SC1815GRC3160,001C32610P(CC)C32510/25C318100/25C3170.0047C428150P(CC)R3164.7KR31733R3184.7KR3191KR3204.7KL303220uHQ324DTC124ESP1022PEH(WHT)12R1204.7KQ304DTC143TSR111180R211180R311180R411180C128150P(CC)C205220/10L102220uHR121150KC1210.01R12233KC119100P(CC)C122560P(CC)C1230.022C1240.068R22233KC2210.01R221150KC2240.068C2230.022C222560P(CC)C219100P(CC)R32233KC319100P(CC)C3230.022C3240.068R42233KC4210.01R421150KC4240.068C4230.022C422560P(CC)C419100P(CC)R2091.8KR4091.8KR11100(B)R10882R20882C2080.001R21100(B)R31100(B)R30882R41100(B)C4080.001Q3192SC1815GRQ322DTC124ESQ3232SC1815GRC11010/25C21010/25C11110/25C21110/25C11210/25R1154.7KR1144.7KC31010/25C31110/25R3144.7KR3154.7KR1131KR2131KR3131KR4131KL304 HXCOILL404HXCOILL104HXCOILL204HXCOILR3031KR4021KQ3212SA1015GRC10710/25Q111DTC124ESQ311DTC124ESR1284.7KR12910KC130220/10C1291/50R13310KR33310KR32910KR3284.7KC3291/50C330220/10Q3072SC1815GRC30710/25D301MTZJ3.3BD101MTZJ3.3BP301EH-5P(RED)P3022PEH(RED)12R2232.2KR124100R126JUMPR1271.5KR1251.5KR131JUMPR4232.2KR3232.2KR324100R326JUMPR3251.5KR331JUMP6P_2PH-6P(WHT)R224.7K(B)R124.7K(B)R424.7K(B)R324.7K(B)C120200P(PL)100VC220200P(PL)100VC420200P(PP)100VC320200P(PP)100VQ1012SC2240GRQ1022SC2240GRQ2022SC2240GRQ3022SC2240GRQ4022SC2240GR6P_1PH-6P(WHT)L205TRAP(100KHz)Q404DTC143TSQ405DTC143TSC4060.027R40882C4040.027R4071MC405220/10R3271.5KQ325DTC124ESR1232.2KQ1212SA1015GRR321150KC3210.01C322560P(CC)R330560Q310DTA124ESQ110DTA124ESR312JUMPR130560Q124DTC124ESR112JUMPC328150P(CC)C228150P(CC)R23212KU302UPC1297CA123456789181716151413121110VSTVR1VI1PH1CI1CO1VO11VO12GNDVCCVR2VI2PH2CI2CO2VO21VO22VIOL302220uHP1047P-JQP10311P-JQP1058P-JQQ3012SC2240GRQ315DTA124ESQ1072SC1815GRQ116DTA124ESDouble Auto Reverse Cassette Deck302MKII1 st Issue; January 20022134567BACDE SCHEMATIC DIAGRAM302MKIIFRONT PCB, CONTROL PCB, KEY 1 PCB, KEY 2 PCB（Page 5/7）KEY1 PCBKEY2 PCBTO MAIN PCBMECHA I MECHA II1234512345671245672345CONTROL PCBFRONT PCBTO AN_ SW PCB123112311987654321912345678+5VGNDTO MAIN PCB P101, P301REC LEVEL 1REC BALANCE 1REC BALANCE 2REC LEVEL 2OFFBBOFF311C4C34DOLBY NR 1DOLBY NR 2PITCH CONT 1PITCH