FM1073_DEV_2_022403543219V B1 R4 VOUT GND 3 R5 47 47 FBA9V A2.5V B2 FB J3 B3 FB CON5 FSYNC 1 BCLK 2 DI 3 DO 4 5 U1A 74AC14 1 U1C 74AC14 6 5 2 U1B 74AC14 3 U1D 74AC14 8 9 4 P28 P29 P32 P31 P2.5VJ1 1 2 3 4 5 CON5 3 1 2.5V TP1 TP 4.7K 74F125/SO FSYNC R1 BCLK R2 DI R3 DO 4.7K 4.7K 4.7K 4.7K 4.7K 4.7K R8 P28 P29 P32 P31 1 2 U4AJ2 3 BNC 2 0.1u C1 1 2 1D1 1 1N4001 C2U2 LM7809 VIN3U3 PJ1117CW-2.5V IN OUT 2 ADJ2.5VR61470uD100uF J4 CON5 P28 1 P29 2 P31 3 P32 4 5R11 10K220uF220uF 0 R12R10NonC8 100uFC9 100uF 2C6 0.1uR9C3 0.1u 21C4C5 1C72R7DU5 5 6 7 8 SDA SCL WP VCC 24LC02 R14 10K 1 2 2.5V 2.5V JP3 HEADER2 1 GPIO5 U10A 74AC14 2 2 U10B 3 2.5V JP4 1 1 2 2 HEADER2 74AC14 2 4 LED2 1 LED1 1 R21 330 R19 330 GND A2 A1 A0 4 3 2 1FSYNC BCLK DO DI2R15 15……