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1 2 3 S2 4 5 6 SEL2 RXM RXS J1 U1 GND TXS 3 RXM RXS PD5M R5 RX TXS R6 TX Header 8 S1 Q1 GND 8050 1 4.7K 2 1 2 3 4 5 6 7 8 A TXM TXM RX TX PD2 PD3 PD4 PD5 PD6 PD7 47K SEL1 J2 GND GND PB0 PB1 PB2 MOSI MISO SCK GND J10 PD3 PD3M 1 2 1 2 3 4 5 6 7 8 R3 JP2 C5 J11 22R 2 4 6 I/O CLK VPP RST GND VCC 22pF PD4M 1 2 PD4 Header 8 GPS/DBG-TXD GPS/DBG-RXD J13 1 3 5 R7 R8 22R 22R SPK1N SPK1P MIC1P MIC1N SIM_CARD C12 104 GND JP2 GND J12 J3 PD5 J9 PD6 PD7 PB0 PB1 PB2 MOSI MISO SCK 1 2 3 4 5 6 7 8 +5 J4 RESET GND Keypad GND VIN GND GND GND GPS-ANT PWRKEY GND NC GND GND GPS-VANT-IN DISP-CLK GPS-VANT-OUT DISP-DATA VCHG DISP-D/C TEMP-BAT DISP-CS DTR GND TXD NC DCD NC RI NC RXD GND CTS GPS/DBG-TXD RTS GPS/DBG-RXD GND SIM-DATA GND SIM-RST VBAT SIM-CLK VBAT SIM-VDD GND SPK1N GND SPK1P GSM-ANT MIC1P GND MIC1N GND SPK2N I2C-SDA SPK2P I2C-SCL MIC2P NC MIC2N NC NC STATUS NC NETLIGHT GPIO1/KBR0 PWM3 GPIO2/KBR1 PWM2 GPIO3/KBR2 PWM1 GPIO4/KBC0 ADC GPIO5/KBC1 NC GPIO6/KBC2 NC GND VDD-EXT NC GND NC VRTC GND GND S4 Header 6 B GND JP2 Header 6 1 2 3 4 5 6 PD5M 1 2 AD0 AD1 AD2 AD3 AD4 AD5 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 RESET 2 3 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 E1 GND GND GPS Antenna A GND TXD RXD GND VBAT E2 GND GSM Antenna GND STATUS NETLIGHT BT1 MS621 SIM908 GND 1 4 GND B RST GND U2 PD3M RXM RXD PD3M TXD TXM 1 2 3 4 5 6 7 GND VBAT G1 A1 Y1 G2 A2 Y2 GND VCC G4 A4 Y4 G3 A3 Y3 14 13 12 11 10 9 8 P1 PD4M GPS/DBG-TXD TXM PD4M RXM GPS/DBG-RXD RXD 1 3 RXM 5 GPS/DBG-RXD 7 2 4 6 8 TXD TXM GPS/DBG-TXD Header 4X2 SPK1P C6 10pF C9 33pF SPK1N C7 10pF C10 33pF J14 C8 10pF 74HC125 GND C11 33pF MIC1P C13 10pF C16 33pF MIC1N C14 10pF C17 33pF C15 10pF C18 33pF Speaker GND J15 MIC GND C C VBAT VBAT VBAT MIC29302 VBAT R1 100K 100uF/25V C4 104 R15 470R R11 300R D1 PWR GND GND R2 43K D3 NET GND STATUS R9 GND R14 300R R10 47K R12 Q2 8050 4.7K1 3 C3 D2 STAT R4 1K 4 3 ADJ GND EN OUT 5 C2 1uF 1 100uF/25V IN 3 2 C1 NETLIGHT Q3 8050 4.7K1 R13 47K 2 VIN 2 U3 GND GND GND D D Title Size Number Revision C Date: File: 1 2 3 4 5 2013/3/28 Sheet of F:\20-Files send to me\..\GSM+GPRS+GPS Drawn V3.0.SchDoc By: 6