Sanyo MCD-ZX100F Service Manual

Also see for MCD-ZX100F: Instruction manual Service manual

Contents

- 7 -IC BLOCK DIAGRAM & DESCRIPTIONIC101 LA1824 (Tuner)Pin Quiescentnumber Function voltage (V) Equivalent circuit RemarksAM FMPilot detector Forced monaural mode w hen pin14 filter 2.9 3.8 14 is connected to ground(forced mono)Phase FM mode is when pin 15 is open,15 compara tor filter 0 3.8 and AM mode is w hen pin 15 is(AM/FM switch) connected to ground16 L output1.4 1.4 Rout = 7.5 k17 R output18 MPX input 1.3 1.3 Rin = 50 kOutput impedanceAM : Rout = 50 kFM : Rout = 500AM/FM19 detector 0.5 1.5 The channel separation can beoutput adjusted with an externalcapacitor connected between thispin and groundConnect the FM oscillator coil20 FM-OSC 4.5 4.4 between this pin and pin 21(VCC2)ILA003181415ILA00319ILA003201617RoutILA0032118RinILA0032219Rout(FM)Rout(AM)ILA0032321 20( )Pin Quiescentnumber Function voltage (V) Equivalent circuit RemarksAM FMFM-FE block V CC21 VCC2 4.5 4.4Power is supplied pin 4 (VCC1)via external resistor (10 )Connect the FM-RF coil between22 FM-RF output 4.5 4.4 this pin and pin 21 (VCC 2)24 FM-RF input 0 1.0 Rin = 50023 GND2 0 0 FM-FE block groundILA00324R421ILA00325Rin2422 21

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