SERVICE MANUAL

+–+–+–+––+–+–+–++–+––+–++–+––+–+–++–+––+–++–+––++–4-13. IC BLOCK DIAGRAMSIC102IN4BIN4A28 27BA5941FP-E2IN3BIN3AOP OUTOP IN (–)26 25 24 23OP IN (+)2221 201918+ –17+ –16+ –15+ –4-14. IC PIN FUNCTION• IC101 SYSTEM CONTROL (UPD780016YGF-016-3BA)+––++–+ –GNDNCNCVCCVccOUT3AOUT3BOUT4AOUT4BIC101CXA1992ARPD2 IVAMPPD239PD1 IVAMPPD138PD37VEELD36RFTC35RF_M34–+RF_ORF SUMMINGAMP33RF_I32CP31CB30CC129CC228FOK27Pin No.12Pin NameNCLED 1I/O—ONot used.LED control.DescriptionVcc+–LEVEL SHIFT+ –LEVEL SHIFT1 2 3 4 5 6 7 8 9 10 11 12 13 14VCCGND 1RIN 2VREF 3OUT2 4RNF 5GND 6OUT1 7VM 8VCC 9FIN 10BIAS ININ1BTSDIN1ACONTROLLOGICIN2BPOWERSAVEIN2AGNDGNDMUTEIC801 BA6286N IC402 LB1641IC103CXD2519QMUTEVccVCCOUT2ALEVEL SHIFTSYSMVDDVSSEXCKSBSOSCORWFCKEMPHIEMPHDOUTC4MFSTTXTSLMNT0MNT1MNT3XROFC2PORFCKGFSXPCKXUGFGTOPVDDVSSBCKIBCKPCMDIPCMDLRCKI+ –OUT2BOUT1ALEVEL SHIFT1 2 3 4 5 6 7 8 9 10GNDT.S.DMOTORDRIVEMOTORDRIVENOISEFILTERCLAMPFWD/REV/STOPCONTROL LOGICFWD.INREV.IN+ –VCC 1+ –OUT1BVCC 2NOISEFILTERO.C.PMOTORDRIVEMOTORDRIVEFE_BIASFEEIVEETEOLPFITEIATSCTZCTDFCTVCFZC40414243444546474849505152VEEVCC–+–+–+E IV AMPBAL1BAL2BAL3BAL4TOG1TOG2TOG3TOG4+––+ATSCWINDOWCOMP.–++–FZC COMP.F IV AMPTZC COMP.+–VCCVEETGFL+–E-F BALANCEWINDOW COMP.+–DFCTVCCVCCIFB1IFB2IFB3IFB4IFB5IFB6VEE+–TM1APCDFCT+–TRK. GAINWINDOW COMP.+–TG1FS4VEELASER POWER CONTROLFE AMPFOCUSPHASE COMPENSATION1 2 3 4 5 6 7 8 9 10+–+–FO. BIASWINDOWCOMP.FOHFOLTGHTGLBALHBALLATSCTZCFZCTRACKINGPHASE COMPENSATION+–+–+–FOKVEELEVEL S VEEVCCLDONLPCLLPCTGFLFS2DFCTOVCCFS1VEEMIRRIIL DATA REGISTERINPUT SHIFT REGISTERADDRESS DECODERSENS SELECTOROUTPUT DECODERIFB1-6BAL1-4TOG1-4ChargeupVCCVEEIIL↓TTLFS1-4 TG1-2 TM1-7 PS1-4TG2VCCDFCTMIRRDFCT1TM7FSET11CC112TM4TM3VCCVEETM613IIL↓TTLTTL↓IILISETVCCVEEVCCTM5–+TM226252423222120191817161514SENS2SENS1C. OUTXRSTDATAXLTCLKLOCKVCCISETSL_OSL_MSL_P3456789101112131415161718192021222324252627282930313233LED 2LED 5LED 6LED 3LED 4NCTestX2X1VddXT2XT1ResetNCNCSCORSOFT TESTAC CUTNCNCVddAVddADJA SHUTB SHUTB-HALFKEY AKEY BKEY CADJ 2AVSSOOOOO——OI———I——IOI————IIIIIII——LED control.LED control.LED control.LED control.LED control.Not used.Ground.X’tal (5MHz).X’tal (5MHz).5V.Not used.Not used.Reset signal input.Not used.Not used.CD Q data request.Soft operation check port.AC power supply check.Not used.Not used.5V.5V.CD adjustment port.Reel pulse detection.Reel pulse detection.Cassette half detection.Key input.Key input.Key input.Not used.Ground.80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51FEOFEIFDFCTFGDFLBFE_OFE_MSRCHTGUTG2FSETTA_MTA_O34SQ DATA INICD data input.35NO USE—Not used.NCAVSSAVDD818283504948LRCKWDCKASYE3637SQ CLKCD-FUNCO—Clock for data input.Not used.AOUT1 84AIN1 85LOUT1 86AVSS 87XVDD 88XTAI 89XTAO 90XVSS 91AVSS 92LOUT2 93AIN2 94AOUT2 95AVDD 96AVSS 97NC 98NC 99XRST 100SERIAL-ININTERFACEPWMPWMOVER SAMPLINGDIGITAL FILTERTIMINGLOGIC3RD-ORDER NOISE SHAPERCPUINTERFACEEFMDEMODURATORSUB CODEPROCESSORSERVOAUTOSEQUENCERERRORCORRECTOR16K RAMD / AINTERFACEDIGITAL OUTDIGITAL CLVASYMMETRYCORRECTORDIGITALPLLOSCCLOCKGENERATOR47 ASYO46 ASYI45 BIAS44 RF43 AVDD42 CLTV41 AVSS40 FILI39 FILO38 PCO37 VCTL36 V16M35 VCKI34 VPCO133 VPCO232 TES131 TES0IN1 3IN2 6IC701 M54641L IC602 UPC1330HAINPUTAMP.INPUTAMP.VCC1REGCONTROLPOWERAMP.POWERAMP.VCC85 REFERENCE2 OUT27 OUT1INVERTERCOMPARATER1 2 3 4 5 6 7 8 9SW R1 GND SW P1 CONT GND VCC SW P2 GND SW R2383940414243444546474849NCNCVSSLED 20SENSE2COM D INCOM D OUTCOM CLKCD POWERCD DATACD CLKLED 19————I———OOOOGround.Ground.Ground.Not used.BD status input.Ground.Not used.Not used.CD power.CD data output.CD clock.LED control.1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 304GND50LED 18OLED control.VDDVSSLMUTRMUTTES2CKOUTSQCKSQSOSENSDATAXLATCLOKSEINCNINDATOXLTOCLKOSPOASPOBSPOCSPODXLONFOKVDDVSSMONMDPMDSLOCKPWMI— 38 — — 39 — — 40 —