Sharp GX20 Service Manual - Page 109

CONFIDENTIAL GX20 C188 0.01 C118 0.01 () C200 0.001 39 AGND1 18 AGND2 51 AGND3 13 AGND4 VINT R188 470K () 5-19 (7-E) 2.8V VMEM 1.8V VCORE C128 0.1 C131 0.1 R177 100K C133 0.1 C134 0.1 C181 47P(CH) C176 1 DVDD1 1 DVDD3 59 DVDD2 37 AVDD1 36 AVDD2 9 AVDD3 52 ITXP TP103 ITXN 35 ITXP TCK 21 QTXP 31 ITXN TMS 22 TP104 QTXN IRXP IRXN 27 QTXP 23 QTXN 32 IRXP IC102 AD6521ACA TDI 12 TP105 TDO 11 TP108 C127 47P(CH) QRXP QRXN 28 IRXN 24 QRXP ANALOG BASEBAND RXON 48 TXON 58 20 AFCDAC 10 RAMPDAC 43 C129 C119 0.1 47P(CH) 54 L107 116 FERRITE BEADS 7P(CH) C120 64 62 61 L108 47P(CH) FERRITE C121 5 RITE BEADS BEADS 47P(CH) 44 C130 40 L106 FERRITE BEADS 0.1 L110 33nH 63 60 QRXN AFCDAC A RAMPDAC B C VINNORP D VINNORN E VOUTNORP F VOUTNORN G H J VINAUXP K VINAUXN VOUTAUXP VOUTAUXN 1 2 3 4 5 6 7 8 9 10 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 TOP VIEW 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ARSM ATSM ASDI ASFS ASDO BSDI BSIFS BSDO BSOFS VSDI VSDO VSFS AUXADC1: JACK Detect RESET AUXADC2: AUXADC3: Temperature Main Battery sence MCLKEN 47 57 41 42 45 38 34 33 30 29 25 26 55 56 () C117 33P(CH) 6 AUXADC1 AUXADC4: Main Battery voltage AUXADC5: Battery Temperature MCLK 46 AUXADC6: BATT_SENSE 5 AUXADC2 15 AUXADC3 BUZZER 50 PEFOUT 7 NC C140 0.001 C138 0.1 4 AUXADC4 REFCAP 8 16 AUXADC5 17 AUXADC6 IDACOUT 14 IDACREF 3 NC NC C139 1 2 DGND1 49 DGND3 19 NC(REFCAP2) 53 NC(MICCAP) TDO 199 GPIO_21 [TDO] R193 10K NC 97 MC_CLK NC 50 MC_CMD NC 10 MC_DAT[0] NC 64 MC_DAT[1] NC 29 MC_DAT[2] NC 85 MC_DAT[3] NC 11 GPIO_22 [Not use] NC 176 DPLUS NC 121 DMINUS TXON BS2 CAM_ON RFON BS0 BS1 SYNTHEN SYNTHDATA SYNTHCLK 13M_CLK TCXOEN PWRON () TP123 TP122 22 27 GPO_00 [RXON] 48 GPO_01 [TXON] 200 GPO_02 [BS2] 180 GPO_03 [ADC_MTC] 181 GPO_04 [Not use] 7 GPO_05 [ARSM] 26 GPO_06 [ATSM] 182 GPO_07 [CAMERA Power on/off] 202 GPO_08 [IrDA Power on/off] 203 GPO_09 [RFON] 204 GPO_10 [BUFOFF] 167 GPO_11 [External AMP] 183 GPO_16 [BS0] 184 GPO_17 [BS1] 161 GPO_18 [SYNTHEN] 186 GPO_19 [LED Bright Control = Charge LED] 168 GPO_20 [SYNTHDATA] 162 GPO_21 [SYNTHCLK] 123 A123 46 CSDO 96 CSFS 25 CSDI 24 BSDO 3 BSOFS 2 BSDI 23 BSIFS 1 ASDO 19 ASDI 22 ASFS 6 GPO_29 47 CLKOUT_GATE 84 CLKOUT [13MHz Output] 4 GPIO_48 B 19 C 21 22 D 37 38 E 43 44 F 57 58 G 71 72 H 79 80 J 91 92 K 103 104 L 115 116 M 127 128 N 135 136 P 149 150 R 163 164 T 169 170 142 CLKIN 159 CLKON U 185 V 187 188 189 63 PWRON 189 nRESET C191 0.001 21 R132 20M 49 OSCIN 28 OSCOUT 39 GND 52 GND 61 GND 65 GND 81 GND 86 GND NC NC C148 100P (CH) TP171 TP175 L109 FERRITE BEADS 149 70 5-18 (4-E) 2.715V VT C169 0.1 3 VO V+ 4 2 GND NC 1 NCGND 5 IC105 LM20BIM7 TEMPERATURE SENSOR ( ) : Not Mount 7 5-18 (3-D) G 5-9 (12-F) TXON 5-18 (4-D) 5-19 (7-B) PWRON G 5-18 (6-B) 5-18 (6-B) SIMEN G 5-19 (10-C) 5-19 (11-C) EOC G 5-18 (6-B) 5-18 (6-F) CAM_ON G 5-19 (8-H) 5-19 (11-E) /RESET G G RFON G TCXOEN G CHRDET G CHGEN G AMP_ON 23 R147 10M NC 1 4 2 3 NC X102 32kHz C149 2P(CH) DGND SHIELD TXON RFON PWRON TCXOEN SIMEN CHRDET EOC CHGEN CAM_ON AMP_ON /RESET The numbers 21 to 23 are waveform numbers shown in page 5-4. 8 9 10 11 12 Figure 8 SCHEMATIC DIAGRAM (8/24) 5 - 13