Sharp DV-S2U Service Manual - Page 31

Power Supply Block Diagram CAUTION ! Switching 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. HOT CIRCUIT. BE CAREFUL. F A V CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE. RISK OF FIRE -REPLACE FUSE AS MARKED. "This symbol means fast operating fuse." "Ce symbole reprèsente un fusible à fusion rapide." AC1001 AC CORD F1001 1A 250V L1001 LINE FILTER F A V D1001, D1002 D1004, D1005 BRIDGE RECTIFIER Q1003 SWITCHING CONTROL Q1001 SWITCHING Q1008 LATCH HOT AV CBA 1-9-13 T1001 2 4 7 D1003 11 RECTIFIER D1030 12 RECTIFIER D1008 13 SCHOTTKY BARRIER D1009 14 RECTIFIER D1013 15 SCHOTTKY BARRIER 16 D1016 17 RECTIFIER 6 18 IC1001 ERROR VOLTAGE DET 4 1 3 2 IC1006 REG (SHUNT REGULATOR) NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal. Q1007 IC1003 (SHUNT REGULATOR) REG IC1002 +1.8V REG. Q1004 Q1011 Q1005 Q1002 Q1006 Q1014 5V REG. 1-9-14 CN1001 1 P-ON+1.8V 2 P-ON+1.8V 3 EV+2.5V 4 EV+2.5V 5 P-ON+5V 6 P-ON+5V 14 EV+9V 15 EV+9V 16 EV+3.3V 17 P-ON+3.3V 18 P-ON+3.3V 19 P-ON+3.3V 20 PWRCON -FL F2 F1 P-ON+3.3V P-ON+5V EV+3.3V P-ON+12V EV+5V E56B0BLP