Sharp DV-SL90UA Service Manual - Page 26
Power Supply Block Diagram
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Power Supply Block Diagram CAUTION ! 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 supply circuit 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. NOTE: CBA AND PWB MEANS PRINTED WIRING BOARD. CAUTION For continued protection against fire hazard, replace only with the same type fuse. NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal. 1-9-4 HOT CIRCUIT. BE CAREFUL. AC1001 AC CORD F1001 T1.6A/250V L1001 LINE FILTER D1001, D1002 D1004, D1005 BRIDGE RECTIFIER Q1003 SWITCHING CONTROL Q1001 SWITCHING Q1008 LATCH HOT AV CBA T1001 2 4 D1003 11 RECTIFIER D1006 SCHOTTKY 12 BARRIER D1008 SCHOTTKY 13 BARRIER D1030 14 RECTIFIER IC1002 +1.2V REG. 15 Q1011 16 D1016 Q1005 7 17 RECTIFIER Q1015 6 18 IC1001 ERROR VOLTAGE DET 4 1 3 2 IC1006 REG (SHUNT REGULATOR) Q1002 Q1004 Q1016 -FL F1 F2 P-ON+10V EV+3.3V EV+5V P-ON+5V CN1001 TO CN401 1,2 EV+1.2V 3,4,5 EV+3.3V 8,9 EV+11V 7 P-ON+5V 6 P-ON+3.3V 17 PWRCON E592BBLP
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