Sanyo MCD-ZX300 Service Manual

Contents

- 2 -T103 T102 JW106 T101T104 IC101 JW105 L101 VC102 VC103 L102 VC104 VC103FM ANTFM (E)MW ANT1. AM ADJUSTMENT Band switch : MWS t e p Adjusting Connection S G Position of Adjust- V T V MCircuit I n p u t Output Frequency tuning dial ment OscilloscopeClosed the output Connect sweep1 IF terminal by sweep generator to 465 kHz Low T103generator, it place IC101(19(H)) andto MW ANT. C107(E).2 515 kHz Low end T101Tuning Connect AM SG to Connect VTVM to Max.3 coverage TEST LOOP. speaker terminals. 1640 kHz High end VC1034 600 kHz 600 kHz MW COILTracking Connect AM SG to Connect VTVM to Max.5 TEST LOOP. speaker terminals. 1400 kHz 1400 kHz V104• Use a plastic screw driver for adjustments.• Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter.• Set of unitSupply voltage : DC 12VSpeaker : 4 ohmsStandard output : 50 mW (450 mV)Function switch : RADIOPARTS LOCATIONTUNER ADJUSTMENTSThis is a basic adjustment.2. FM ADJUSTMENT Band switch : FM FM Dummy antenna : 75 ohms unbalanceS t e p Adjusting Connection S G Position of Adjust- V T V MCircuit I n p u t Output Frequency tuning dial ment OscilloscopeT104 and1 IF 10.7MHz Low T1022 87MHz Low end L102Tuning Connect FM SG to Connect VTVM to Max.3 coverage FM ANT (H) & FM (E). speaker terminals. 109MHz High end VC1014 90.0MHz 90.0MHz L101Tracking Connect FM SG to Connect VTVM to Max.5 FM ANT (H) & FM (E). speaker terminals. 106.0MHz 106.0MHz VC102Connect sweepgenerator toIC101 (24pin)and C107(E)Connect VTVMgenerator toIC101 (19PIN)and C1075 (E).