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Company confidential

52

RF-3:WCDMA Trouble shooting (3/5)

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WCDMA

發射路徑

WCDMA transmission path

Transceiver-3G PA, PA-Duplexer

From MT6166

WCDMA BAND 1/2 signal

From MT6166

WCDMA BAND 1/2 signal

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Summary of Contents for S660

Page 1: ...Company confidential Lenovo S660 Service Manual Publisher NJD HW Team Date 2014 02 28 ...

Page 2: ...Company confidential Function Block 2 ...

Page 3: ...Company confidential M B Top Placement 1 3 MT6582 MCP Charge IC Audio Jack Receiver SKY77593 MT6166 FLASH LED IC Backlig ht IC 26M crystal MT6627 MB to SB connector ...

Page 4: ...idential M B Bottom Placement 2 4 MT6323 DUAL SIM CONNECTOR BACK UP BATTERY Mic 2 TF CARD CONNECTOR Battery connector Camera Connector P L Sensor Connector TP Connector Audi o PA G Sensor LCM connector 32K crystal ...

Page 5: ...fied error SIM卡無法識別 BB 5 LCD display error 畫面無法顯示或顯示異常 BB 6 Sensor function failure 感測器不良 BB 7 Touch Panel function failure 無法觸屏 BB 8 Vibrator function failure 馬達無振動 BB 9 Camera shooting failure 無法攝像 BB 10 MIC function failure 麥克風無作用 BB 11 Speaker function failure 喇叭無聲 BB 12 Audio function failure Audio 不良 BB 13 SD Card function failure SD Card無作用 5 ...

Page 6: ...eck if battery power level is low 確認電池是否有電 VBATT TP09 3 6V 2 Check if J802 soldering condition is good 確認J802吃錫狀況是否正常 3 Check if power button is functional 確認開機鍵是否正常 PWRKEY TP11 2 8V TP11 connect with ground wire to power on 跟地短路後可將系統開機 6 TP09 3 6V TP11 2 8V ...

Page 7: ...ny confidential 5 Please check whether MT6323 voltage is normal 請確認MT6323周圍電壓是否正常 VPROC_PMU should be between C134 0 9V 1 1V VSYS_PMU should at R373 1 8V BB 1 Can not power on 無法開機 2 3 7 VSYS_PMU VPROC_PMU ...

Page 8: ...onfidential BB 1 Can not power on 無法開機 3 3 8 VCORE 0 7V 1 3V VPORC 0 7V 1 3V VIO18 1 8V VIO28 2 8V VM12_INT 1 2V VA1 2 5V VA2 2 5V VUSB 3 3V VTCXO 2 8V VMC 3 3V VMCH 3 3V RESET 1 8V MT6323 Power On Off sequence ...

Page 9: ... check whether current is normal after boot 確認開機後電流起跳正常記憶體中無代碼時電池電流約在0 1A左右 2 If current in booting process is larger or less than normal USB port will be unidentified 開機過程中如果電流過大或過小會造成USB port無法識別 3 Please check if R3312 is solid soldering on 檢查SB的R3312是否空焊 9 ...

Page 10: ...pany confidential BB 2 Can not download 無法更新軟件 2 3 4 If DL is passed and META mode is un entered check RF transceiver 26MHz and RF chip function 若可以正常DL 但無法進入META mode 檢查RF transceiver 26MHz及RF chip是否正常 10 ...

Page 11: ...Company confidential BB 2 Can not download 無法更新軟件 3 3 5 Check if com port is correct 確認com port是否正確 11 ...

Page 12: ...eck if battery resistance R332 Pin1 BAT_ID is 10kΩ when battery is installed 確認電池內阻R332 Pin1 BAT_ID 當接電池後阻抗應該約10kΩ 2 Check battery voltage if 0V reveals open circuit 確認電池電壓是否為正常異常為0V 開路 3 Check if J801 USB connector failure 確認J801 USB connector 是否有異狀 12 ...

Page 13: ...idential BB 3 Can not charging 無法充電 2 2 4 Check charging IC and related circuit soldering condition is good 確認充電IC 及周围电路焊接是否常 When USB port has be inserted VBUS should be at 5V output VBUS在USB 插入時是否有5V 右的电压输出 13 ...

Page 14: ...ntification error SIM卡無法識別 1 2 1 Check if SIM Card is in normal condition 更換SIM卡確認卡片是否正常 2 Check if J3200 soldering condition is normal 確認J3200吃錫狀況是否正常 3 Check SIM related signal SRST VSIM SIO and SCLK 確認SIM 相關訊號 SRST VSIM SIO and SCLK 14 ...

Page 15: ...IM Card Identification error SIM卡無法識別 2 2 15 SIM1和SIM2的 DATA RST CLOCK 单独分开使用 DATA RST CLOCK of SIM1 and SIM2 are used seperately SIM1 SIM2的供电电压各来自PMU的两组LDO output SIM1 SIM2 output voltage are coming from two LDO output of PMU ...

Page 16: ...e LCD 更換LCM If failure still exists after LCM replacement 若更換良品後現象還存在 3 Check L1202 L1203 L1204 condition 檢查L1202 L1203 L1204否有異狀 4 Check if LCM voltage VIO28_PMU及VIO18_PMU are correct 確認LCM 電壓 VIO28_PMU及VIO18_PMU 位準是否正確 5 Check U901 L901 D901 R903 if back light is in failure 若無背光確認U901 L901 D901 R903 16 LCM兩組作電壓 ...

Page 17: ...herefore it is not necessary to check this voltage when sensors are on failure BB 6 sensor function fail 感測器不良 1 2 所有的sensor都是由I2C總線中斷信號電源組成 I2C總線上sensor間會相互影響所以維修某個 sensor不良時需要同檢查其他sensor路徑 All sensors are consisted by I2C bus interrupt signal and power Sensors on I2C bus are affected by each other therefore related sensors checking is needed when repairing sensor 17 ...

Page 18: ...sor function fail 感測器不良 2 2 18 G sensor I2C通過上拉電阻連接到CPU 此I2C與touch panel共用 VDD18_PMU異常會造成所有sensor fail G sensor I2C connect to CPU with Pull up resistor which share with touch panel VDD18_PMU error will lead to all sensors failure ...

Page 19: ... 是否鬆脫 2 Replace TP 更換TP If failure still exists after TP replacement 若更換後良品後現象還存在 3 Check if J2001 is on failure 確認J2001是否有異狀鍚短 or 空焊 4 Check TB voltage VDD28_PMU and VDD1V8_PMU is correct 確認TB 電壓 VDD28_PMU及VDD1V8_PMU 位準是否正確 5 Check control signal of I2C Reset INT are correct 確認控制訊號 I2C Reset INT動作是否正常 19 ...

Page 20: ...Company confidential BB 7 Touch Panel no function 無法觸屏 2 2 TP circuit 20 TP 作電壓 2 8V 1 8V TP Working Voltage 2 8v 1 8v 復位信號 Reset Signal ...

Page 21: ...is in normal condition Resistance is 30Ω 確認馬達是否正常馬達阻抗約30Ω 2 Check if motor soldering condition 確認馬達是否有異狀鍚短 or 空焊 3 Check if D309 is reversed C331 soldering condition is good 檢查D309是否反向 C331焊接是否有异常鍚短 or 空焊 4 VIBR_PMU voltage is normal when booting 啟動時VIBR_PMU電壓是否正常 21 ...

Page 22: ...ailure still exists after camera module replaced 若更換後良品後現象還存在 3 Check J902 is in normal condition 確認J902是否有異狀鍚短 or 空焊 4 Check EMI901 EMI902 EMI903 EMI904 EMI905 soldering condition 確認 EMI901 EMI902 EMI903 EMI904 EMI905是否有異狀鍚短 or 空焊 5 Check camera voltage VCAMD_IO_PMU VCAMA_PMU VCAMD_PMU are correct 確認Camera 電壓 VCAMD_IO_PMU VCAMA_PMU VCAMD_PMU 位準是否正確 22 ...

Page 23: ...Company confidential BB 9 Camera can not turn on 無法攝像 2 4 主camera的4組作電壓均是由PMU LDO輸出通過給camera All 4 working voltage of main camera are inputted from PMU LDO 23 Camera I2C 源頭路徑 ...

Page 24: ...mera cannot be identified by CPU via I2C need to check power supply for camera 2 拍攝黑屏油畫現象為手機進入拍攝模式后但無法讀取景物類不良主要是camera無法通過DATA 路徑將信號傳給CPU 常處理造成類不良主要檢查camera的DATA 2 Photos are blurry black when shooting camera is not able to capture scenery after entering shooting model The main cause is camera cannot pass signal to CPU to process via Data path Need to check camera DATA path 24 ...

Page 25: ...any confidential BB 9 Camera can not turn on 無法攝像 4 4 25 VREF HREF Sensor垂直水平參考信號 Sensor reference of horizon and vertical MCLK 來自CPU的主時鐘輸出 Main clock from CPU PCLK 象數時鐘輸入 Clock input from image numerology ...

Page 26: ...no function 麥克風無作用 1 確認J1003 Microphone是否正常正常Mic阻抗約0 95KΩ Check if J1003 Microphone is in normal condition MIC resistance should be at 0 95KΩ 2 確認MIC 周邊電路是否有異狀鍚短 or 空焊 Check MIC and related circuit soldering condition 26 MIC2 MIC1 ...

Page 27: ...B to SB FPC is well connected 2 確認Speaker彈腳及阻抗是否正常正常阻抗約8Ω Check speaker shrapnel and resistance are at normal condition normal resistance is 8Ω 3 確認Speaker周邊電路是否異常鍚短 or 空焊 Check if speaker and related circuit are at normal condition 27 SPK周邊電路 SPK circuit around SPK 彈片 SPK shrapnel ...

Page 28: ...one mic1 to headset fail 测的是手机MIC1路径 6 headsetmic to headset fail 测的是耳机MIC路径 Check relevant path for different test item failure for Audio error 1 wave play back fail check SPK path 2 receiver fail Check receiver path 3 headset fail check earphone L R channel path 4 phone mic1 to headset fail Check phone MIC1 path 5 phone mic1 to headset fail Check phone MIC1 path 6 headsetmic to headset fail Chec...

Page 29: ...y confidential BB 12 Audio function fail Audio 不良 1 4 Speaker path 29 PMU給出SPK信號進入Audio PA 進行放大處理 PMU output SPK signal to Audio PA to amplify Audio PA 輸出放大后的SPK信號 Audio PA output SPK signal after amplifying ...

Page 30: ... Audio 不良 2 4 Receiver path Phone MIC path 30 PMU輸出音頻信號 PMU output audio signal 聽筒無聲優先check 0om是否通 Check 0Com first if receiver is not functional 為MIC提供偏置電壓 Provide bias voltage for MIC MIC信號輸入到 PMU進行音頻處理 MIC signal input to PMU to process audio ...

Page 31: ... 3 4 耳機右聲道電路 Earphone L R channel circuit 31 PMU輸出耳機音頻信號 PMU output earphone audio signal 耳機右聲道連接 audio jack Earphone L R channel link to audio jack 耳機MIC路徑 Earphone MIC path 耳機掛機鍵偵測信號 Earphone dial button detection 耳機插入偵測PIN Earphone insert detection pin ...

Page 32: ...al BB 12 Audio function fail Audio 不良 4 4 耳機MIC電路 Earphone MIC Circuit 32 為耳機MIC提供偏置電壓 Provide bias votage for earphone MIC 耳機MIC信號通過差分電路進入PMU作音頻處理 Earphone MIC signal output to PMU to be process by differential circuit ...

Page 33: ...Power supply 針 SD card fail 優先check U1604和 U1605是否空焊 CMD CLK DET DATA被中斷 Check U1604 and U1605 soldering condition first if SD card fail SD card 控制信號 Control signal SD card 數據傳輸 Data transmission 1 Check SD card is been inserted properly 確認SD CARD有確實卡到位 2 Check SD card related circuit are in good condition 確認SD Card周邊電路是否異常鍚短 or 空焊 ...

Page 34: ...nfidential 34 WIFI BT GPS I Q Signal SCLK DataSignal Connect to CPU MT6582 獨立的26M TCXO Output Clock to MT6627 Separate 26M TCXO output clock to MT6627 WIFI BT GPS 功能使用的IC為MTK MT6627 WIFI BT GPS IC are MTK MT6627 ...

Page 35: ...Company confidential 35 MT6627 Power Supply WIFI BT GPS From PMU MT6323 Output to MT6627 ...

Page 36: ...Company confidential GSM PA Switch GSM Vbat GSM LB Tx input GSM HB Tx input WCDMA Band HB LB TRx GSM HB LB Rx Logic control signal Logic control table ...

Page 37: ...Company confidential GSM RX GSM HB LB Circuit 37 2G LB Rx 2G HB Rx Balance output to transceiver LB Port Balance output to transceiver HB Port ...

Page 38: ...Company confidential WCDMA Band1 8 TRx VV36 38 38 Tx from Transceiver Band 8 Tx Rx balance to transceiver TRx connect with ANT Switch Rx balance to transceiver TRx connect with ANT Switch Band 1 Tx ...

Page 39: ...Company confidential WCDMA Band2 5 TRx VV37 39 Tx from Transceiver Band 5 Tx Rx balance to transceiver TRx connect with ANT Switch Rx balance to transceiver TRx connect with ANT Switch Band 2 Tx ...

Page 40: ...Company confidential 40 RF introduction MT6166 Function Block ...

Page 41: ...Company confidential 41 RF introduction MT6166 Pin assignment ...

Page 42: ...ential 42 RF introduction Antenna Circuit Antenna Circuit RF天線主要包含了 2G 3G WIFI GPS 其匹配電路分別描述如 RF antenna consists 2G 3G WIFI GPS Description as right diagram Main ANT RF Paths WIFI ANT RF Paths Wifi BT path GPS path ...

Page 43: ...Company confidential 43 RF introduction 2G 3G Main Antenna Position ANT Matching MB RF Switch Connect to Sub by Coaxial Cable ...

Page 44: ...Company confidential 44 RF introduction WIFI Antenna Position WiFi BT GPS Antenna Clips WiFi BT GPS Antenna Matching ...

Page 45: ...Company confidential 45 RF common issue RF 1 Network function error RF 2 GSM problem RF 3 WCDMA problem RF 4 GSM WCDMA Rx error RF 5 WIFI problem ...

Page 46: ...ential 46 RF 1 Network function error 若2G 3G 網路功能異常請檢查螢幕天線格數 SIM card是否裝好 Coaxial cable和是否組好 If 2G 3G network is on failure check reception level on screen SIM card inserted properly and Coaxial cable connected well ...

Page 47: ...Company confidential 47 RF 2 GSM Trouble shooting 1 3 Check GSM transmission path 檢查GSM發射路徑 Tx I Q Signal ...

Page 48: ...M transmission path 由於2G PA和ASM整合在U1302 檢查發射時對應邏輯控制電壓是否正確 Due to 2G PA and ASM assembly in U1302 check logical control voltage is correct when transmission testing 使用示波器量測圖所標腳位的電壓是否符合右列表 Use oscilloscope test below pins voltage if they match the right bottom table ...

Page 49: ...9 RF 2 GSM Trouble shooting 3 3 GSM發射路徑 GSM transmission path 檢查發射路徑的功率 check power of transmission path 使用spectrum probe量測列標駐點測量其功率 Use spectrum probe to measure below points power Low band GSM signal High band GSM signal ...

Page 50: ...Company confidential 50 RF 3 WCDMA Trouble shooting 1 5 WCDMA發射路徑 WCDMA transmission path 確認IQ路徑 Check IQ path 使用示波器量測圖所標之腳位檢視其波形 Use oscilloscope to check below points check waveform ...

Page 51: ...Company confidential 51 RF 3 WCDMA Trouble shooting 2 5 WCDMA發射路徑 WCDMA transmission path 確認發射路徑 Check signal transmission path 使用频谱仪量測圖所標之腳位檢視其Power Use oscilloscope to test below point and power ...

Page 52: ...Company confidential 52 RF 3 WCDMA Trouble shooting 3 5 WCDMA發射路徑 WCDMA transmission path Transceiver 3G PA PA Duplexer From MT6166 WCDMA BAND 1 2 signal From MT6166 WCDMA BAND 1 2 signal ...

Page 53: ...l 53 RF 3 WCDMA Trouble shooting 4 5 WCDMA發射路徑 WCDMA transmission path 檢查ASM 邏輯控制電壓 Check ASM logical control voltage 使用示波器量測圖所標腳位的電壓是否符合右列表 Use oscilloscope test below pins voltage if they match the right bottom table ...

Page 54: ...Company confidential 54 RF 3 WCDMA Trouble shooting 5 5 GSM PA ASM 發射路徑 ASM RF Con GSM WCDMA Transmission Path ASM RF Con GSM WCDMA ...

Page 55: ...M WCDMA Trouble shooting 接收路徑 Receiving Path 檢查 Antenna switch Module邏輯控制電壓 Check Antenna switch module logical control voltage 使用示波器量測圖所標腳位的電壓是否符合右列表 Use oscilloscope test below pins voltage if they match the right bottom table ...

Page 56: ...confidential 56 WIFI BT GPS WIFI BT GPS IC MTK MT6627 BT WIFI 1 Check whether the antenna of BT WIFI damaged 2 Check whether BT WIFI R1503 has output frequency of 26M co _ clock design 3 Check BT WIFI TRX path ...

Page 57: ...Company confidential 57 WIFI BT GPS BT WIFI TRX path MT6627 U1504 MT6627 U1504 MT6166 U1303 Co_clock design ...

Page 58: ...any confidential WIFI BT GPS GPS RX path 1 Check whether the antenna of GPS damaged 2 Check whether the working voltage is normal Vcc 2 8V GPS_LNA_EN 1 8V 3 Check whether the GPS signal has been enlarged 58 ...

Page 59: ...Company confidential WIFI BT GPS GPS RX path 59 MT6627 U1504 U1506 ...

Page 60: ...Company confidential Thank You 60 ...

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