Sanyo LCD-32XL2 Service Manual

-6-IC001 < AUDIO AMP. > LA4919N-EIC Block Diagrams213465781091213141718192021222326HP IN1Headphone Block27Ripple filterRipple filterVoltageRegulator Vcc28VG=6dBVG=6dBH/P Standby SW1516ABAMP. StandbySWOutputamplifierOutputamplifierNonlinearamplifier2425Muting circuitused at poweronIntputamplifierH. L. SSwitching regulator BlockSwitchingDriveA B C D* H. L. SHigher LevelSignal SelectorHeadphone stageInput amplifier stageSwitching regulator stagePower TR stageVCCCDOutputamplifierOutputamplifierNonlinearamplifierOUT1+OUT1 -Output amplifierstage11REF amplifierInput amplifierHP IN2 HP OUT2HP OUT1HP D.CHP StandbyAMP StandbyD.CDDLON TIMEIN2PRE GNDPRE VCCIN-VREFIN1POWER GNDPOWER GNDSW GNDSWBSWESW OUTOUT2 +OUT2 -IC101 < IF-PLL Demodulator > TDA9886TSV4PVIF2TUNER AGC VIF-AGCSIF AGC OUTPUTPORTS I 2C-BUS TRANSCEIVERSINGLE REFERENCE QSS MIXERINTERCARRIER MIXERAND AM DEMODULATORVIF-PLLRC VCO DIGITAL VCO CONTROL AFC DETEVTORSOUND TRAPS4.5 to 6.5MHzAUDIO PROCESSINGAND SWITCHESNARROW-BANDFM-PLL DEMODULATORSUPPLYMAD123 465781091213141117181920212223151624VIF1SIF2SIF1Vp AGND N.C. OP1 OP2 SCL SDA DGND SIOMADSound intercarrier outputand MAD selectFM-PLLFM-PLL filtercAGCcAFde-emphasisnetworkcAFDEEMAUD Audio outputCVBSVideo output: 2Vp-p(1.1vp-p without trap)VPLL REF AFCExternal reference signalor 4MHz crystalVIF-PLL filterVAGCcVAGC(pos)TOP TAGCcAGC(neg) cBLIC3501 < BBE/Bass Sound Processer >NJM2155M21 3 4 65 7 8 109 1213141718192021 151611LOWOUT-LOUT-LVccIN-LFILTERMACH3HOUT-LLOWIN-LIN-RHIN-RHOUT-R222324HIL-LBBEBBEMach3BiasControlLOWIN-RLOWOUT-ROUT-RVREFGINGOUTLPINLPOUTGNDBBEPROCESSLO CONTOUR