Denon DVD-1720/556 Service Manual

Also see for DVD-1920: Operating instructions Opertating instructions Specifications Service manual Operating instructions

Contents

27DVD-1720/556Power Supply Block DiagramIC1006(SHUNT REGULATOR)AC1001AC CORD F1001LINEFILTERL1001D1001, D1002D1004, D1005Q100324734IC1001ERRORVOLTAGE DETT10011112131514161718SWITCHINGSWITCHINGCONTROL126BRIDGERECTIFIERHOTHOT CIRCUIT. BE CAREFUL.D1003RECTIFIERD1030RECTIFIERD1016RECTIFIERQ1016Q1005Q1011Q1015Q1002CN1001Q1004-FLEV+5VF1P-ON+10VEV+3.3VP-ON+5V4,5 EV+1.2V6,7,8 EV+3.3V11,12 EV+11V10 P-ON+5V9 P-ON+3.3V20 PWRCOND1006SCHOTTKYBARRIERSCHOTTKYBARRIERD1008F2AV CBATO CN401Q10311A 250V3 +1.2VREG.IC1002312A VFREG312Q1008LATCHQ1014CAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F1001) is blown , check to see that all components in the power supplycircuit are not defective before you connect the AC plug to the AC power supply.Otherwise it may cause some components in the power supply circuit to fail."Ce symbole reprèsente un fusible à fusion rapide."CAUTION !For continued protection against fire hazard,replace only with the same type fuse.ATTENTION : Pour une protection continue les risqesd'Incele n'utiliser que des fusible de même type.Risk of fire-replace fuse as marked."This symbol means fast operating fuse."A VF NOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.