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Asus Z300C Troubleshooting Manual
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Asus Z300C Troubleshooting Manual

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ASUS
Z300C / CG
Trouble Shooting Guide

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Summary of Contents for Asus Z300C

  • Page 1 ASUS Z300C / CG Trouble Shooting Guide...

  • Page 2: Table Of Contents

    Table of Contents • Device Overview • Block Diagram • Power Tree • Issues – Power Rail – LCM / Touch Panel – Camera – USB – Sensor – Audio – SIM (Z300CG only) – SD – EMMC – Charger –...

  • Page 3: Device Overview

    Device Overview Rear CAM Volume Down Volume Up SD Card Power Key SIM Card Ambient Light Sensor Front Camera Docking Speaker Battery Pack LCM FFC...
  • Page 4 Device Overview Front CAM (CON2002) PWR Button Hall Sensor (SW2801) (U2103) (U2102) Cadiz (CON1801) G-Sensor / E-Compass Phone Jack Vol Up (U1801) (U2101) (J1401) (SW2802) Gauge (PU9601) Vol Down LPDDR3 (SW2803) (U1901) Battery (CON9601) AMIC (U1406) Charger (PU8101) (U501) eMMC (U1701) A-Gold 620 SIM Card...

  • Page 5: Block Diagram

    Block Diagram UART_DEBUG_TXD_SW UART_DEBUG_RXD_SW XTAL 32.768KHz MICP2 AMIC_IN_P AMIC AMIC_IN_N Antenna BT/WIFI Antenna WUP_DBB Z300CG Only Antenna MAIN_CAM_MIPI 3G Main Rear Camera PMU_CTRL HP_SPK_OUT_R 2M FF/5M AF I2C1 Switch Switch Headphone XG_CLK32K_IN HP_SPK_OUT_L Jack HPA02208YZPR HPA02208YZPR AGOLD 620 Front Camera SUB_CAM_MIPI CADATA 0.3M FF/2M FF...

  • Page 6: Power Tree

    Power Tree [CON1801] [U2101] G + E-Compass (21) LCM Con_42P (18) BOSCH BMC156 [U2001] LDO Camera 2P8 (20) V_VSYS_LCDTP Pin 1 RICOH RP103K281D-TRB Pin 2 VCM_2P8_5M RF PMIC_1/5 (11) VOUT1 Pin 3 [PU8101] Charger (81) [PU8901] LED Driver IC (89) V_TP_1P8 Pin 9 Intel A-GOLD 620 (PMB9102)
  • Page 8 POWER...

  • Page 9: Power Rail

    Power Rail Checklist 1. 檢查零件是否有歪斜、空焊或損毀 2. 檢查 Power Sequence 是否有跑完？ • XG_RESET_IN_N 電壓是否為 1.2V？ • XG_RESET_OUT_N 電壓是否為 1.8V？ 3. 檢查以下電壓是否無輸出或者和 GND 短路？ (以不破壞PCBA為主) • VBAT  大於 3.5V • VSYS  約等於 VBAT • VDD_CORE, VDD_CPU, VDD_GPU  1.0V • VSD_1V8, VDD_DDR_PLL ...
  • Page 10 Power Rail Checklist 4. 如果有 Power Rail 和 GND 短路(對地阻抗偏低)，先確認短路主因。 • Ex. 假設量測到 VSD_1V8 對地短路 – 可以斷開 R1102 量測兩端阻抗  確認是否為 PMIC 內部短路 5. 如果確認為 U1101 或 U501 內部短路… • 1.8V 照 X-Ray 檢查是否有短路或空焊 1200mA • 對 U1101 / U501 再度加熱 VSD_1V8 VSYS •...

  • Page 11: Lcm / Touch Panel

    LCM / TOUCH PANEL...
  • Page 12 LCM Issue Checklist • Check CON1801及周邊零件是否有歪斜、空焊或損毀 • Check LCM FFC 及本體是否異常 • Panel – Check V_VSYS_LCDTP (R1872.1) 是否為 3.3V – Check V_LCD_1P8 (R1867.1) 是否為 1.8V • Backlight – Check V_LED (PSR8902.2) 是否為 16.2 ~ 18V (有無對地短路？) – Check P_BL_SCL_5 (T8903) 和 P_BL_SDA_5 (T8904) 準位是否為 1.8V •...
  • Page 13 CON1801 V_VSY S_LCDTP I2C3_TP_SCL SIDE1 I2C3_TP_SDA TS_INT_N TS_RST_OUT_N T1801 V_TP_1P8 Noise_In Power_OK# T1802 V_LCD_1P8 LCM_RST_N LCD_PWM_OUT LCM_EN V_LED R1869 LCM_ID0 1MR1J LCM_ID1 VLED_Isink4 VLED_Isink3 VLED_Isink2 VLED_Isink1 MIPI_DSI0_D2P MIPI_DSI0_D2N MIPI_DSI0_D1P MIPI_DSI0_D1N SIDE2 MIPI_DSI0_CLKP MIPI_DSI0_CLKN MIPI_DSI0_D0P MIPI_DSI0_D0N MIPI_DSI0_D3P MIPI_DSI0_D3N FPC_42P 12018-00350000 D1811 D1805 D1806 D1807...
  • Page 14 Cadiz Issue Checklist • Check U1801及周邊零件是否有歪斜、空焊或損毀 • Check SCL_CAD (R1862.1) & SDA_CAD (R1865.1) 準位是否為 1.8V – 確認準位後，再用示波器確認波形是否正確 • Check V_CADIZ_AVDD_1P2 (R1821.1) & V_CADIZ_DVDD_1P2 (R1822.2) 電壓是否為 1.2V， 如果沒有… – Check PU9302 置件是否有歪斜、空焊或損毀 – Check PR9302.2 電壓是否為 1.8V – Check PR9306.2 準位是否為 High (1.8V) •...
  • Page 15 Cadiz U1801 MDSI_C_DATA_0_DP 0R1J R1823 MIPI_DSI0_LANE0_P_CDZ MIPI_TX_D0P RX0P TX0P MDSI_C_DATA_0_DN 0R1J R1824 MIPI_DSI0_LANE0_N_CDZ MIPI_TX_D0N RX0N TX0N MDSI_C_DATA_1_DP 0R1J R1829 MIPI_DSI0_LANE1_P_CDZ MIPI_TX_D1P RX1P TX1P MDSI_C_DATA_1_DN 0R1J R1828 MIPI_DSI0_LANE1_N_CDZ MIPI_TX_D1N RX1N TX1N MDSI_C_DATA_2_DP 0R1J R1831 MIPI_DSI0_LANE2_P_CDZ MIPI_TX_D2P Common Mode Choke RX2P TX2P MDSI_C_DATA_2_DN 0R1J R1833...
  • Page 16 Co-layout MIPI_TX_D0N 0OHM RN1801B MIPI_TX_D0P MIPI_DSI0_D0N MIPI_DSI0_D0P MIPI_TX_D1N Unmount 90Ohm MIPI_TX_D1P MIPI_DSI0_D1N L1801 MIPI_DSI0_D1P 0OHM RN1801A 0OHM RN1802B Unmount 90Ohm L1802 0OHM RN1802A 0OHM RN1803B MIPI_TX_D2N MIPI_DSI0_D2N MIPI_TX_D2P MIPI_DSI0_D2P Unmount 90Ohm MIPI_DSI0_D3N L1803 MIPI_TX_D3N MIPI_DSI0_D3P MIPI_TX_D3P 0OHM RN1803A 0OHM RN1804B Unmount 90Ohm L1804...
  • Page 17 Touch Panel Issue Checklist • Check CON1801及周邊零件是否有歪斜、空焊或損毀 • Check V_TP_1P8 (R1871.1) 是否為 1.8V • Check I2C3_TP_SCL (R1859.1) & I2C3_TP_SDA (R1860.1) 準位是否為 1.8V – 確認準位後，再用示波器確認波形是否正確 • Check TOUCH_INT_N (R1866.1) 在觸碰螢幕時，準位是否拉 Low...
  • Page 18 VSD_1V8 V_TP_1P8 R1859 R1860 2.2KOhm 2.2KOhm R1871 C1825 C1826 0R1J I2C3_TP_SDA I2C3_TP_SCL V_TP_1P8 R1863 R1864 10KR1J 100KOhm TS_RST_OUT_N TOUCH_RST# TOUCH_INT_N TS_INT_N R1866 0OHM TOUCH_INT_N I2C3_TP_SCL I2C3_TP_SDA D1801 D1802 D1803 D1804...

  • Page 19: Camera

    CAMERA...
  • Page 20 Rear Camera Issue Checklist • Check CON2001 及周邊零件是否有歪斜、空焊或損毀 • Check Camera 是否有插好 • Check DVDD_1P2_5M (L2012.2) 電壓是否為 1.2V (無電壓則確認 L2012 是否有上件) – 如果 L2012 有上件 • 確認相機開啟後，C2012.1 電壓是否等於 1.8V • 確認 R2008.1 準位是否為 Low (0V) – 如果上述兩者皆正常，則確認 U2002 是否有空焊 • Check VDD_1P8_CAM_REAR (L2007.2) 電壓是否為...
  • Page 21 Rear Cam Connector(2M FF/ 5M AF) 12018-00110000 VDD_2P8_CAM_REAR VCM_2P8_5M CON2001 MAIN_CAM_ID0 MAIN_CAM_ID0 10 CAM_MCLK CAM_MCLK C2040 C2041 0.1UF/6.3V 1UF/10V MAIN_CAM_MIPI_CLKN MAIN_CAM_MIPI_CLKP MAIN_CAM_MIPI_CLKN MAIN_CAM_MIPI_CLKP 5 MAIN_CAM_MIPI_D1P MAIN_CAM_MIPI_D1P MAIN_CAM_MIPI_D1N MAIN_CAM_MIPI_D1N 5 MAIN_CAM_MIPI_D0N MAIN_CAM_MIPI_D0P MAIN_CAM_MIPI_D0N MAIN_CAM_MIPI_D0P 5 I2C1_CAM_SDA I2C1_CAM_SDA DVDD_1P2_5M MAIN_CAM_RESET# I2C1_CAM_SCL VDD_1P8_CAM_REAR MAIN_CAM_RESET# I2C1_CAM_SCL 5 MAIN_CAM_ID1...
  • Page 22 Front Camera Issue Checklist • Check CON2002 及周邊零件是否有歪斜、空焊或損毀 • Check Camera 是否有插好 • Check VDD_1P8_CAM_FRONT (L2009.2) 電壓是否為 1.8V – 無電壓則確認 L2009 是否有上件 • Check VDD_2P8_CAM_FRONT (L2010.2) 電壓是否為 2.8V – 無電壓則確認 L2010 是否有上件 • Check I2C1_CAM_SCL (R503.1) & I2C3_CAM_SDA (R504.1) 準位是否為 1.8V –...
  • Page 23 Front Cam Connector( 0.3M FF /2M FF) T2002 12G185402505 CON2002 VDD_2P8_CAM_FRONT SUB_CAM_ID0 CAM_MCLK SUB_CAM_ID0 CAM_MCLK SUB_CAM_PD_N I2C1_CAM_SCL SUB_CAM_PD_N I2C1_CAM_SCL 5 I2C1_CAM_SDA I2C1_CAM_SDA 5 VDD_1P8_CAM_FRONT SUB_CAM_MIPI_D0P SUB_CAM_MIPI_D0P SUB_CAM_MIPI_D0N SUB_CAM_MIPI_D0N SUB_CAM_MIPI_CLKP SUB_CAM_MIPI_CLKP SUB_CAM_MIPI_CLKN SUB_CAM_ID1 SUB_CAM_MIPI_CLKN SUB_CAM_ID1 10 FPC_25P C2018 C2039 C2054 0.1UF/6.3V 1UF/10V 1UF/10V D3111...
  • Page 25 USB Issue Checklist • Check CON3201 置件是否有歪斜、空焊或損毀 • Check L3201 和 R3203 置件是否有歪斜、空焊或損毀 • Check U3101 置件是否有歪斜、空焊或損毀 [ USB Connector ] • Check USB_VBUS (T3206) 電壓是否為 5V • Check VUSB (C1118.1) 插入 OTG 裝置後，電壓是否為 3.15V • Check VAIF (C1112.1) 電壓是否為 1.1V •...
  • Page 26 Micro USB Connector USB_VBUS T3206 1/8 RF新 增 下 地 電 容 tpc60t_68 Jerry(20150506) C3203 T3210 33P25VNPOC1J T3207 T3208 tpc60t_68 CON3201 Jason(20150421) 0OHM RN3201B P_GND1 VBUS P_GND3 USB_DN_CON USB2_DN_CONN_R USB2_DP_CONN_R USB2_DP_CONN_R 90OHM/100Mhz L3201 P_GND4 USB_DP_CON P_GND2 C3201 C3202 33P25VNPOC1J 33P25VNPOC1J MICRO_USB_5P 0OHM RN3201A...
  • Page 27 USB Switch R3205 USB_SWITCH_VDD VCC_IO_3V3 0Ohm C3210 1UF/10V During Reset： TBD Micro USB Connector After Reset： TBD VOL(min)=0.9*1.8=1.62V U3101 Dock_SW_EN 5 USB_DN_CON USB_DP_CON USB2_DN_CONN 6 USB_DN_DOCK_R USB2_DP_CONN 6 USB_DP_DOCK_R USB_SWITCH_ENB SoC USB Interface Dock Connector AZAW2212F.R7G R3206 R3207 1MR1J 1MR1J Jason(20150421) VSY S VCC_EMMC...
  • Page 28 SENSOR...
  • Page 29 G-Sensor & E-Compass • Check U2101 置件是否有歪斜、空焊或損毀 • Check VDD (R2104) & VDDIO (R2103) 電壓是否為 1.8V • Check SDA_A+M (R2101.1) & SCL_A+M (R2105.1) 準位是否為 1.8V – 確認準位後，再用示波器確認波形是否正確  若上述狀況無異常，則可嘗試 照X-Ray、再次加熱或更換 Sensor 本體。...
  • Page 30 VSD_1V8 V_CADIZ_DVDD_1P8 SDA_A+M R2101 I2C4_SEN_SDA 5,10,18,89 0Ohm SCL_A+M R2105 I2C4_SEN_SCL 5,10,18,89 0Ohm R2122 R2119 0Ohm 0Ohm V_CADIZ_DVDD_1P8 VSD_1V8 V_CADIZ_DVDD_1P8 VSD_1V8 VSD_1V8 V_CADIZ_DVDD_1P8 R2120 R2102 R2121 R2103 U2101 R2104 R2118 0Ohm 0Ohm 0Ohm 0Ohm 0Ohm 0Ohm SDA_A+M GND3 BOSCH_VDDIO VDDIO GND2 BOSCH_VDD GND1 R2106...
  • Page 31 Ambient Light Sensor • Check U2102 置件是否有歪斜、空焊或損毀 • Check VDD (R2109) 電壓是否為 1.8V • Check ALS_SDA (R2110.1) & ALS_SCL (R2111.1) 準位是否為 1.8V – 確認準位後，再用示波器確認波形是否正確  若上述狀況無異常，則可嘗試 照X-Ray、再次加熱或更換 Sensor 本體。 ALS_SDA I2C4_SEN_SDA R2110 0Ohm ALS_SCL I2C4_SEN_SCL R2111 0Ohm VSD_1V8 V_CADIZ_DVDD_1P8 VDD_ALS VDD_ALS R2112 100KR1J...
  • Page 32 Hall Sensor • Check U2103 置件是否有歪斜、空焊或損毀 • Check VDD (R2115) 電壓是否為 1.8V • Check HALL_IRQ# (C2105.2) 在 sensor 感應到磁力後，是否會拉至 Low  若上述狀況無異常，則可嘗試 照X-Ray、再次加熱或更換 Sensor 本體。 V_CADIZ_DVDD_1P8 VSD_1V8 VDD_HALL VDD_HALL R2114 100KOhm Push-Pull Output HALL_IRQ# C2105 U2103 0.1U6.3VX5RC1K R2115 0Ohm OUTPUT R2116 Y B8251ST23 0Ohm...
  • Page 33 AUDIO CODEC...
  • Page 34 U1101G Headset AMIC_IN_P HP_SPK_OUT_R MICP1 AMIC_IN_N HP_SPK_OUT_L MICN1 VSD_1V8 MICP2 C1424 MICP2 MICN2 MICN2 Earpiece 1UF/6.3V R1425 0R1J R1421 VSY S VMIC R1426 0Ohm 0R1J VDD_MS_DCDC VMIC VDD_MS_DCDC VMIC C1416 VNN_MS VNN_MS C1415 VUMIC 0.22UF/6.3V 100NF/6.3V C1423 330PF/50V VSS_MS_AUD VUMIC VUMIC VDD_MS_HF VDD_MS_BAT...
  • Page 35 AMIC • Check U1406 置件是否有歪斜、空焊或損毀 • Check L1417, L1418, L1419 & L1420 置件是否有歪斜、空焊或損毀 • Check C1428 & C1432 置件是否有歪斜、空焊或損毀 • Check R1420 置件是否有歪斜、空焊或損毀 • Check VMIC (R1420.1) 在開始錄音時，電壓是否為 1.9V...
  • Page 36 VMIC C1403 1NF/25V R1420 Close to AG620 2.2KOhm C1428 L1419 L1417 1UF/6.3V 120Ohm 120Ohm AMIC_IN_P AMIC_IN_P_C AMIC_IN_P_R AMIC_IN_P_CONN AMIC C1435 C1436 C1430 C1429 D1404 33PF/25V 33PF/25V TVL020101AB0 27PF/25V 27PF/25V U1406 C1405 MICROPHONE_2P 100PF/25V C1432 L1420 L1418 1UF/6.3V 120Ohm 120Ohm AMIC_IN_N AMIC_IN_N_C AMIC_IN_N_R AMIC_IN_N_CONN...
  • Page 37 Speaker [ Speaker 單體 ] • Check CON2501 & CON2502 置件是否有歪斜、空焊或損毀 • Check L2501, L2502, L2503 & L2504 置件是否有歪斜、空焊或損毀 • Check Speaker單體 是否正常 • Check T2501 & T2502 是否走 Differential 訊號 (正負端電壓加總約等於VSYS) • Check T2503 & T2504 是否走 Differential 訊號 (正負端電壓加總約等於VSYS) [ Speaker Amp ] •...
  • Page 38 SPK_AMP_PVDD VSY S R2510 0Ohm C2517 C2516 0.1U6.3VX5RC1K 10UF/6.3V C2520 R2517 U2502 SPK_OUT_R_C 0R1J HP_SPK_OUT_R 1UF/6.3V SPK_R_N OUT-RN SPK_AMP_IN_R SPK_R_P INPUT-R OUT-RP 1000P25VX7RC1K C2518 C2521 SPK_L_N R2518 OUT-LN SPK_OUT_L_C SPK_AMP_IN_L 0R1J HP_SPK_OUT_L INPUT-L SPK_L_P OUT-LP SPK_AMP_BY PASS 1UF/6.3V BY PASS SPK_AMP_G1 SPK_AMP_G2 C632...
  • Page 39 Headset • Check J1401 置件是否有歪斜、空焊或損毀 • Check Headset本體 是否正常 • [ if Headset 插入無反應 ] – Check R1427, U1401 & R1419 置件是否有歪斜、空焊或損毀 – Check VCC_IO_3V3 (R1419.1) 電壓是否為 3.0V • [ if MIC & Function Key 無功能 ] – Check L1403, R1406, R1403, C1408 & R1422 置件是否有歪斜、空焊或損毀 –...
  • Page 40 VUMIC R1403 2.2KR1J C1408 1UF/6.3V MICP2 MICP2_R MICP2_C MICP2_CONN R1406 L1403 68Ohm 120Ohm C1411 C1426 100NF/6.3V 330PF/16V R1422 Jason(20150421) 0R1J D1405 TVL020101AB0 Headphone Jack J1401 HPOUTR_CONN HP_GND GND/DEC HPOUTL_CONN GND/DEC AUDIO_JACK_5P 12014-00045200 R1413 0OHM D1406 D1407 TVL020101AB0 TVL020101AB0 VSD_1V8 R1415 100KOhm HEADSET_DET_N Plug-in：...
  • Page 41 ( Only for Z300CG ) SIM CARD...
  • Page 42 SIM Card Issue Checklist • Check CON3101 置件是否有歪斜、空焊或損毀 • Check VSIM1 (BBTP405) 電壓是否為 2.9V • Check SIM1_DET (R3107.2) 在插入 SIM Card 後，電壓是否拉至 1.8V – 如果沒有，確認 R3101 置件是否有歪斜、空焊或損毀 • Check R3105 置件是否有歪斜、空焊或損毀...
  • Page 43 VSIM1 VSD_1V8 VSIM1 MICRO SIM 1 R3107 R3101 C3101 C3102 100KOhm 4.7KR1J 1UF/6.3V 100NF/6.3V CON3101 R3104 SIDE1 SIDE4 0OHM P_GND2 SIM1_COMM COMMON SIDE6 GND2 P_GND4 GND1 SIM1_RST SIM1_CLK_R R3105 100Ohm SIM1_CLK P_GND3 SIM1_IO SIDE5 SIM1_DET P_GND1 High Active SIDE2 SIDE3 SIM Card Insert(CD=VISM1) MICRONSIM_SOCKET_9P SIM Card Remove(CD=0)
  • Page 44 SD CARD...
  • Page 45 SD Card Issue Checklist • Check CON3001 置件是否有歪斜、空焊或損毀 • Check R3003, R3004, R3005 & R3006 置件是否有歪斜、空焊或損毀 • Check SDMMC_CD# 在插入 SD Card 後，準位是否為 Low (0V) [ SD Card Power ] • Check VDD_SD (PC8306.1) 電壓是否為 3.0V，如果沒有… – 確認 PU8301 置件是否有歪斜、空焊或損毀 –...
  • Page 46 VDD_SD C3001 C3009 C3002 1UF/6.3V 100NF/6.3V 100NF/6.3V VSD_1V8 VMMC1 C3010 R3002 10P50VNPOC1J R3001 10KOhm SD Socket 100KOhm Tracy(20150508) CON3001 SIDE1 GND1 SIDE3 SDMMC_CLK SDMMC_CLK SIDE5 SDMMC_D2 0R1J R3003 SDMMC_D2 DAT2 GND3 SDMMC_D3 0R1J R3004 SDMMC_D3 DAT3/CD SDMMC_CMD SDMMC_CMD VDD_SD SDMMC_D0 0R1J R3005 SDMMC_D0...
  • Page 47 EMMC...
  • Page 48 eMMC Issue Checklist • Check U1701 置件是否有歪斜、空焊或損毀 • Check R1715 置件是否有歪斜、空焊或損毀 • Check VCC_EMMC (PR8313.1) 電壓是否為 3.0V，如果沒有… – 確認 PU8302 置件是否有歪斜、空焊或損毀 – 確認 PC8301.1 電壓是否等於 VSYS – 確認 VCC_EMMC_EN (PR8305.2) 準位是否為 1.8V • Check V_EMMC_VCCQ (R1705.2) 電壓是否為 1.8V，如果沒有… – Check R1705 置件是否有歪斜、空焊或損毀 •...
  • Page 49 Jason(20150421) VSY S VCC_EMMC VCC_IO_3V3 VSY S PR8308 100KOhm PU8302 PR8313 GND2 VDD2 VOUT1 VDD1 VOUT2 eMMC_LDO_LCON2 0Ohm LCON GND1 PC8303 PC8301 VIH = 1.0V RP115L301D-E2 1UF/6.3V 1UF/6.3V VSD_1V8 PR8305 0R1J VCC_EMMC_EN VMEM V_EMMC_VCCQ V_EMMC_VCCQ PR8306 0R1J PR8302 Jason(20150421) 1MOhm Note: VMEM is Off while system suspend R1706 10KR1J...
  • Page 50 CHARGER...
  • Page 51 Charger Issue Checklist • Check PU8101 置件是否有歪斜、空焊或損毀 • Check PL8101, PR8108 & PR8109 置件是否有歪斜、空焊或損毀 • Check CHG_USBIN_S (PL8101.2) 在插入 adapter 後，電壓是否為 5V • Check CHG_PHASE_S (PC8112.2) 在插入 adapter 後，是否有電壓輸出 • Check CHG_SCL (T8101) & CHG_SDA (T8102) 準位是否為 1.8V – 確認準位後，再用示波器確認波形是否正確...
  • Page 52 USB_VBUS USBIN 要 低 於 0.7V 時 才 能 重 新 偵 測 D+D- PL8101 30OHM/100MHz PC8115 PC8118 PC8114 PR8119 0.1UF/25V 33PF/50V 4.7U/25V 20KOhm PU8101 Jason(20150421) Jerry(20150506) DCIN1 MIDDCIN DCIN2 MIDUSBIN CHG_USBIN_S USBIN1 USBIN2 BOOT PC8112 0.022UF/16V CHG_PHASE_S EE check T8101 TPC8B VDDCAP PR8108...
  • Page 53 GAS GAUGE...
  • Page 54 Gauge Issue Checklist • Check PU9601 置件是否有歪斜、空焊或損毀 • Check REGIN (PC9615.2) 電壓是否正常 (=VBAT) • Check PBAT_CE (PR9608.1) 電壓是否約等於 VBAT • Check PBAT_SDA (T9611) & PBAT_SCL (T9612) 準位是否為 1.8V – 確認準位後，再用示波器確認波形是否正確 VBAT VBAT CHG_VBATT_5 PR9608 PC9615 PC9616 100KOhm 100NF/6.3V G_GND 100NF/6.3V G_GND PC9617 PU9601...

  • Page 55: Appendix

    Points for Attention APPENDIX...
  • Page 56 Points for Attention during MMI Test • 觸碰電路板時，請一律戴上手套及靜電環。 • 各項需插拔的裝置，連接時請小心，以免造成 Connector 損毀。 – Phone Jack / Speaker – Front / Rear Camera – FFC (LCM) – SIM Card / SD Card – USB / Battery • 務必當所有 Components 都安裝好才連接 Power Supply！！！ –...

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