GND IC1 D 1I INH INH 2 N 3RO RESET G 4GND 1 2 K3 5D 6 1 K7 WI 6W 5 R 1 Q 2 2 1 1 7 K 1 n 1 7 12 TLE4271 BAT 8 R 0 C 2 1 1 2 2 µ 1 + 8 GND , C 2 2 C µ 1 + 5 V 2 C 2 2 GND GND GND GND +12V +12V 1 1 K 3 K 6 3 R 1 R VCC D K2 VDD 2 2 V 11 22 1 K 4 n 6 C 5V K 1 K 1 1 R 7 1 C C K1 , R , R 2 IC3 4 2 V 4 4 1