U4 HT7550 +5V U1 5 4 1 2 3 C12 104 C13 104 C14 100uF/16V C10 100uF/16V C11 104 R17 68R/4.7uF Q1 PMOS R1 10K R2 20R J1 VFD_OFF VFD_ON 6 4 3 1 S3 R3 10K R16 10K 5 2 C3 C4 100uF/16V 100uF/16V 2 F 4 4 3 4 2 4 3 _ 2 F 2 _ 2 F 1 _ 2 F DC12V D1 SS14 C1 5 D 4 1 S S 100uF/16V C2 104 Q2 S8050 6 7 VCC D- D+ NC GND J3 1 2 3 4 5 R28 20R R29 20R R30 20R 8 9 USBMINI USB_DM USB_DP USB_DIS +3V3 GND SWCLK SWDIO RXD TXD SPI2_MOSI SPI2_MISO SPI2_SCK SPI2_NSS MCU_BK LAT CLKA SIA SIG CLKG VFD_ON HV_OVER DC12V VFD_GP1211AI VFD VFD-GP1211AI-V1.0 2012-03-26 Q6 NPN R9 20R R8 39K HV_OUT C25 22uF/63V C6 104 ZD3 12V ZD4 30V C7 104 +5V R10 20K ZD5 6V2 L1 82uH F2 F1 C8 0 1 9 8 7 6 100uF/16V . . T 2 T 2 1 T T 6 4 T 4 T 4 1 T 4 1 . . 1 2 3 4 5 C5 103 R4 5K6 Q3 C3303 D4 D2 1 T _ D F V R5 5K6 Q4 C3303 ZD1 30V ZD2 30V R26 10K R6 10K Q5 S8050 MCU_BK R23 20R G K L C G I S +5V C9 104 HV_OUT K B _ D F V A K L C T A L A I S 9 3 8 3 7 3 6 3 5 3 4 3 3 3 2 3 1 3 0 3 9 2 8 2 7 2 6 2 5 2 A K B A T A L A K L C A I S A O S G O S G I S G K L C G T A L G K B D D V D N G D D N G P 2 _ V H 1 _ V H HV_OVER C26 104 6 5 4 UMD9N 1 2 3 R22 470R Q7 C27 103 R24 470R R25 1K D3 VFD_BK R27 2K C28 104 +5V R7 20K R11 10K R12 10K R13 10K R14 10K R15 10K 1 F VFD_BK 3 2 1 3 _ 1 F 2 _ 1 F 1 _ 1 F VFD1 LAT CLKA CLKG SIA SIG 

+3V3 VBAT 1 +5V 2 I C22 104 U3 D N G 3 O HT7233 1 C23 100uF/25V +3V3 C24 104 1 2 3 4 U5 SO SI GND SCK VCC #RESET #CS #WP AT45DB161D 8 7 6 5 DF_CS DF_SCK DF_SI DF_SO C29 104 +3V3 CLKG DF_SI DF_SO DF_SCK CLKA SIG SIA MCU_BK TXD RXD USB_DM USB_DP SWDIO SWCLK LAT USB_DIS DF_CS HV_OVER VFD_ON SPI2_NSS SPI2_SCK SPI2_MISO SPI2_MOSI 10 11 12 13 14 15 16 17 29 30 31 32 33 34 37 38 18 19 20 39 40 41 42 43 45 46 21 22 25 26 27 28 R21 10K U2 PA0/WKUP/UART2_CTS/ADC12_IN0/T2_CH2_ETR PA1/UART2_RTS/ADC12_IN1/T2_CH2 PA2/UART2_TX/ADC12_IN2/T2_CH3 PA3/UART2_RX/ADC12_IN3/T2_CH4 PA4/SPI1_NSS/UART2_CK/ADC12_IN4 PA5/SPI1_SCK/ADC12_IN5 PA6/SPI1_MISO/ADC12_IN6/T3_CH1 PA7/SPI1_MOSI/ADC12_IN7/T3_CH2 PA8/UART1_CK/T1_CH1/MCO PA9/UART1_TX/T1_CH2 PA10/UART1_RX/T1_CH3 PA11/UART1_CTS/CANTX/USBDM/T1_CH4 PA12/UART1_RTS/CANRX/USBDP/T1_ETR PA13/JTMS/SWDIO PA14/JTCK/SWCLK PA15/JTDI PB0/ADC12_IN8/T3_CH3 PB1/ADC12_IN9/T3_CH4 PB2/BOOT1 PB3/JTDO PB4/JNTRST PB5/I2C1_SMBAI PB6/I2C_SCL/T4_CH1 PB7/I2C_SDA/T4_CH2 PB8/TIM4_CH3 PB9/TIM4_CH4 PB10/I2C2_SCL/UART3_TX PB11/I2C2_SDA/UART3_RX PB12/SPI2_NSS/I2C2_SMBA/UART3_CK/T1BKIN PB13/SPI2_SCK/USART3_CTS/T1_CH1N PB14/SPI2_MISO/UART3_RTS/T1_CH2N PB15/SPI2_MOSI/T1_CH3N STM32F103C8T6 VDD_1 VDD_2 VDD_3 VSS_1 VSS_2 VSS_3 VDDA VSSA PC13/TAMPER-RTC PC14/OSC32_IN PC15/OSC32_OUT NRST BOOT0 OSC_IN OSC_OUT 24 36 48 23 35 47 9 8 2 3 4 7 44 5 6 C15 20P C18 104 C19 104 C20 104 +3V3 R19 20R C17 104 +3V3 RST R18 10K C21 104 S2 RST RST S1 5 2 R20 10K Y1 8M C16 20P +3V3 6 4 3 1 VFD VFD-GP1211AI-V1.0 2012-03-26