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Motorola Moto X Pure Edition, Руководства по устранению неисправностей

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Moto X Pure Edition/Moto X Style 

Baseband TROUBLESHOOTING GUIDES 

MOTOROLA CONFIDENTIAL 

Troubleshooting NFC Measured RF Power and NFC Tag Detection 

1.

 

 Verify that NFC antenna is connected and properly seated (continued) 

2.

 

 Visually inspect NFC antenna match for any damaged or missing parts 

3.

 

 Visually inspect NFC antenna contacts for damage 

Содержание Moto X Pure Edition

Страница 1: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES V1 0 2009 Motorola Proprietary Confidential ...

Страница 2: ...all Block Diagram 3 2 Snapshots of Main Board 5 3 Charging Troubleshooting 9 4 LED Proximity IR Sensor uSIM SDCARD Troubleshooting 13 5 Sensors Troubleshooting 22 6 Touch Troubleshooting 29 7 Display Troubleshooting 34 8 Camera Troubleshooting 40 9 Audio and Vibrator Troubleshooting 50 10 NFC Troubleshooting 81 ...

Страница 3: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL OVERALL BLOCK DIAGRAM ...

Страница 4: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL ...

Страница 5: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL SNAPSHOTS OF MAIN BOARD ...

Страница 6: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Top Side Battery side Bottom Side Display side Snapshots of Main PCB Top and Bottom ...

Страница 7: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Main Board Top Placement ...

Страница 8: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Main Board Bottom Placement ...

Страница 9: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL CHARGING TROUBLESHOOTING ...

Страница 10: ...y IC is U2500 and the secondary IC is U540 used for turbo charging only Charge Path 1 of 2 primary charger IC USB Connector J500 pin1 Charger IC U2500 pin 193 194 195 208 209 209 210 L2509 Charger IC U2500 pin 174 189 204 205 Charger IC U2500 pin 173 188 202 203 R521 Battery Connector J510 Pin 4 CHARGING TROUBLESHOOTING Charger IC ...

Страница 11: ...le Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Charge Path 2 of 2 secondary charger IC Charger IC U540 pin 40 41 42 47 48 49 Charger IC U5201 pin 2 9 16 23 R521 Battery Connector J510 pin 4 CHARGING TROUBLESHOOTING cont d ...

Страница 12: ... 4 35V or lower Check battery voltage at J510 pin 4 It should be 4 40V or lower If battery is below 2 1V there maybe a short in the circuit somewhere and the battery protection circuit is triggered Check battery ground path J510 pin 1 Battery temperature should be between 0ºC 45ºC to be fully charged Read the phone temperature using the following steps Attach a USB cable to a powered on phone In a...

Страница 13: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL LED PROXIMITY IR SENSOR USIM uSD CARD TROUBLESHOOTING ...

Страница 14: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL SOL LED White is driven by U2000 PM8994 SOL_LED_SINK PM8994_MPP8 and B_PLUS SOL Sign of Life LED B PM8994_MPP8 ...

Страница 15: ...0 LED Vf If 10mA V_anode V_cathode 2 7V typ 3 1V max If LED is working Vf should be in the available range about 2 8V White SOL LED LED On LED Off FTM power w o battery V_Anode 3 15V 3 2V V_Cathode 0 3V Vf 2 8V V_Anode 3 15V 3 2V V_Cathode 0 95V Vf 2 2V FTM power w battery 3 8V V_Anode VBatt 0 1V 3 9V V_Cathode 1 05V Vf 2 85V V_Anode VBatt 0 1V 3 9V V_Cathode 1 66V Vf 1 95V ...

Страница 16: ...ty Sensor Ambient Light Sensor IR Proximity Ambient Light Sensor circuit is located on a mainboard In the event of IR proximity or ambient light sensor issue at phone level Visually check under a microscope if the grommet is placed on the sensor correctly whether the grommet blocks the lens opening ...

Страница 17: ...re 1 receiver sensor and 3 IR LEDs for operating IR sensor IR receiver sensor and 3 LED circuits are located on a mainboard In the event of IR sensor issue at phone level Visually check under a microscope if the grommet is placed on the sensor correctly whether any of the grommets block the lens openings ...

Страница 18: ...Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Depending on the PCB board variant there are up to 2 SIM connectors on PCB board Each SIM connector is operated independently with its own power detection and SIM bus interface SIM ...

Страница 19: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL SIM cont d Secondary SIM These components may be DNI depending on sku ...

Страница 20: ... M4201 and M4202 for any sign of mechanical contact issues Inspect all SIM circuit components on PCB Check SIM power at C4203 for primary SIM and at C4223 for secondary SIM and SIM card detection signal TRAY_DET at E4210 TRAY_DET is high when tray is inserted Check SIM bus interface signal activities during SIM access UIMx_RST UIMx_CLK UIMx_DATA SIM cont d ...

Страница 21: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL uSD CARD Probe VDD_SDC at C4413 to check for 2 7 3 6V Probe TRAY_DET at E4210 for 1 8V ...

Страница 22: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL SENSORS TROUBLESHOOTING ...

Страница 23: ...b failure Inspect physical placement U6000 and their related components on main PCB board see sensor hub schematic page on next slide When all sensors stop reporting readings please inspect the power supply on sensor hub If the power is present then please send the board back to Chicago for DE analysis Sensor hub ...

Страница 24: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Sensor Hub ...

Страница 25: ...chematic page on next slide Connect the board to a display and power the board display with battery or factory cable Launch CQA app test each accelerometer at a time Look for accelerometer G force activity on all axis X Y Z As you change the board orientation to have positive X Y Z accelerometer reading Good accelerometer IC will have G force reading for each positive axis closed to 9 8 else the I...

Страница 26: ...PCB board see gyroscope schematic page on next slide Connect the board to a display and power the board display with battery or factory cable Launch CQA app test each gyroscope at a time Look for gyroscope activity on all axis X Y Z As you rotate the board orientation gyroscope reading will register reading accordingly When the board is stationary all gyroscope reading should be 0 Gyroscope ...

Страница 27: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Accelerometer and Magnetometer ...

Страница 28: ...ical placement U6140 and their related components on main PCB board Connect the board to a display and power the board display with battery or factory cable Launch CQA app test each magnetometer Look for magnetometer on all axis X Y Z As you rotate the board orientation magnetometer reading will register reading accordingly Magnetometer ...

Страница 29: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL TOUCH TROUBLESHOOTING ...

Страница 30: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Two Layers Touch INX Synaptics S3528 16 TXs 28RXs Touch Design ...

Страница 31: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL 10 pin BtB conn to main b d Touch Design Mechanical ...

Страница 32: ... TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL TOUCH_VCI 3 25V from L22A_3P0 TOUCH_VIO 1 8V INT_N 1 8V State change interrupt Low when touch event occurs Touch Design Electrical RST_N from MSM GPIO I2C lines SCL SDA should be pulled up to 1 8V ...

Страница 33: ...IDES MOTOROLA CONFIDENTIAL No touch and abnormal touch 1 Check power supply voltages 2 Check a touch connector and flexes on display flex 3 Check a panel crack 4 Check firmware version adb shell cat sys bus i2c devices 2 0020 ic_ver Touch Design Troubleshooting ...

Страница 34: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL DISPLAY TROUBLESHOOTING ...

Страница 35: ...oto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Display Circuit Location Display Backlight Driver Panel Driver IC Display related Components Display 41 pin Connector ...

Страница 36: ...ight signal check Colorful components placed Gray components NOT placed MIPI Signals Display Control Signals AoD signals Display B L Panel Drive DISP_VIO 1 8V DISP_RST_N 1 8V DISP_CABC DISP_TE MIPI_ERR_FG LED_C1 0 13V LED_C2 0 16V LED_Anode 22V VSN_DISP 5 5V VSP_DISP 5 6V VREG_L25A_1P2 VREG_L18A_2P85 ...

Страница 37: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL CABC Signal as seen on an oscilloscope ...

Страница 38: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL MIPI Signal as seen on an oscilloscope zoomed out ...

Страница 39: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL MIPI Signal as seen on an oscilloscope zoomed in ...

Страница 40: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL CAMERA TROUBLESHOOTING ...

Страница 41: ...n the meantime check if receptacle and plug of B to B connector are mated properly without poor assembly If the issue follows rear Imager module Send the defective module to module supplier for further analysis If the issue follows main PCB Please check power supplies level control signals and MIPI signals as directions on the next slide to find further information about failure Rear Facing Imager...

Страница 42: ... CAM_R_RST is high at No 5 pin of FL5500 It should be high level Check CAM_R_MCLK main clock 24Mhz at this point of E5502 Check sensor core power level at this point of C5514 CAM_R_DVDD 1 15V Check sensor digital power level at this point of C5510 CAM_R_VDDIO 1 8V Check sensor analog power level at this point of C5551 CAM_R_AVDD 2 5V Check AF actuator power level at this point of C5519 CAM_AF_2P8 ...

Страница 43: ...on Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Rear Facing Imager Troubleshooting cont d Zif fingers of rear imager module will be inserted into zif connector on main PCB as below top contact type ...

Страница 44: ...n the meantime check if receptacle and plug of B to B connector are mated properly without poor assembly If the issue follows front Imager module Send the defective module to module supplier for further analysis If the issue follows main PCB Please check power supplies level control signals and MIPI signals as directions on the next slide to find further information about failure Front Facing Imag...

Страница 45: ...is point of E5602 Check sensor core power level at this point of C5602 CAM_F_DVDD 1 2V Check sensor digital power level at this point of C5600 CAM_F_VDDIO 1 8V Check sensor analog power level at this point of C5605 CAM_F_AVDD 2 85V Check if I2C_SCL SDA activity is present at No 6 7 pins of FL5600 Check if CAM_F_RST is high at No 5 pin of FL5600 It should be high level ...

Страница 46: ...ure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Front Facing Imager Troubleshooting cont d Plug on front imager module will be mated with receptacle connector on main PCB as below ...

Страница 47: ...ck if receptacle and plug of B to B connector are mated properly without poor assembly If the issue follows rear imager flash led flex Check if led was damaged and send the module to led supplier without removing LEDs on flexible PCB for further analysis if it is the case If the issue follows main PCB Please check the operation of flash driver IC SKY81296 on next slide to find further information ...

Страница 48: ...mager Flash LED cont d Check if I2C_SCL SDA activity is present at No 6 7 pins of FL5600 or No 7 8 pins of FL5500 Since these signals are being shared with front and rear imagers Check the SMT status if there is cold soldering or part damage associated with flash driver IC circuitry on main PCB ...

Страница 49: ...er flash PCB by swap test with known good PCB module first In the meantime check if universal contacts M5601 and M5602 are mated properly without poor assembly If the issue follows front imager flash PCB Check if led was damaged and send the module to led supplier without removing LEDs on flexible PCB for further analysis if it is the case Front Imager Flash LED ...

Страница 50: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL AUDIO VIBRATOR TROUBLESHOOTING ...

Страница 51: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Audio Device ...

Страница 52: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Audio Block Diagram ...

Страница 53: ...microphone for stereo camcording 3rd MIC Beam forming microphone for AoV mode Recording microphone for stereo camcording 4th MIC Supporting microphone for AoV mode HS MIC Main microphone for headset mode voice call Main microphone for AoV mode While wired headset has been inserted Top speaker Output stereo sound Left channel Output Rx voice at handset mode voice call Bottom speaker Output stereo s...

Страница 54: ...g loops headset MIC to the wire headset speakers If both of those are not function Top speaker path may be damaged In the Audio menu of the CQA apk select Ear Speaker and then Play Harvard speech pattern The loudspeakers can be tested by selecting Loudspeaker under the Audio menu Music should start playing The headset audio can by tested by first plugging in a headset with a microphone and then se...

Страница 55: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Primary Microphone Circuit ...

Страница 56: ...04 or C4503 This should be 1 7 1 8V when the microphone is enabled Check the 1st microphone sealing cushion at bottom PCB If the cushion has been shifted the MIC hole could be blocked See image below Check the microphone output at C4501 or C4502 The AC amplitude should increase Output DC bias should be around 0 7V when audio is present Primary Microphone ...

Страница 57: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Secondary Microphone Circuit ...

Страница 58: ...4513 This should be 1 7 1 8V when the microphone is enabled Check the 2nd microphone sealing cushion at rear housing If the cushion has been shifted the MIC hole could be blocked while it has been assembled Check the microphone output at C4511 or C4512 The AC amplitude should increase Output DC bias should be around 0 7V when audio is present Secondary Microphone ...

Страница 59: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Tertiary Microphone Circuit ...

Страница 60: ...e microphone is enabled Check the 3rd microphone sealing grommet and adhesive on the 3rd MIC part If the grommet and adhesive have been assembled abnormally the MIC hole could be blocked while it has been assembled See image below Check the microphone output at C4521 or C4522 The AC amplitude should increase Output DC bias should be around 0 7V when audio is present Tertiary Microphone Blocked hol...

Страница 61: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Quaternary Microphone Circuit ...

Страница 62: ...s should be 1 7 1 8V when the microphone is enabled Check the 4th microphone sealing grommet on the 4th MIC part If the grommet has been assemble abnormally the MIC hole could be blocked while it has been assembled Check the microphone output at C4531 or C4532 The AC amplitude should increase Output DC bias should be around 0 7V when audio is present Quaternary Microphone ...

Страница 63: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Vibrator Circuit ...

Страница 64: ...atic on the previous slide Check vibrator driver IC VDD at C4602 or C4603 The VDD voltage level should be 5V when the phone powered on This power should be always turned on Check vibrator part DC armature resistance on test points VIBP and VIBN see image below to verify the solder connection between vibrator and PCB and PCB traces The DC armature resistance should be about 11 19 ohms The voltage d...

Страница 65: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Top Speaker Boost IC Circuit B_PLUS 8 V 16 V PWM B_PLUS 9 V ...

Страница 66: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Top Speaker Boost IC Circuit B_PLUS B_PLUS 9 V 8 V 16 V PWM ...

Страница 67: ...o X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Top Earpiece and Speaker Circuit 8 V 16 V PWM speaker 0 V earpiece B_PLUS 9 V 5 V DC 0 V speaker 6 V 12 V PWM earpiece 8 V 16 V PWM speaker 2 V 4 V PWM earpiece ...

Страница 68: ...o X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Top Earpiece and Speaker Circuit 5 V DC B_PLUS 9 V 8 V 16 V PWM speaker 0 V earpiece 0 V speaker 6 V 12 V PWM earpiece 8 V 16 V PWM speaker 2 V 4 V PWM earpiece ...

Страница 69: ...ker to the contacts on M4670 with short thick wires While playing audio at normal to high volume use an oscilloscope to verify that the voltage on the VBST_LEFT_AMP node the junction of C6423 and C6425 alternates between B_PLUS voltage and approximately 9 V depending on the audio content While playing media audio at normal to high volume probe the voltage across C6422 A 384 kHz PWM waveform should...

Страница 70: ...2 x B_PLUS up to 18 V p p depending on the audio content Check the voltage on the VDD_SPK_BOOT node R4697 and verify that it alternates between B_PLUS voltage and approximately 9 V depending on the audio content Check the voltage on the VDD_SPK_5V_BOOT R4699 and verify that it is 5 V DC Check the differential voltage across R4692 it should be about 0 V Probe the voltage at the SPKR_MODE_GATE node ...

Страница 71: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Bottom Speaker Boost IC Circuit B_PLUS B_PLUS 9 V 8 V 16 V PWM ...

Страница 72: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Bottom Speaker Boost IC Circuit B_PLUS B_PLUS 9 V 8 V 16 V PWM ...

Страница 73: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Bottom Speaker Circuit 8 V 16 V PWM ...

Страница 74: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Bottom Speaker Circuit 8 V 16 V PWM ...

Страница 75: ...ect an 8Ω speaker to contacts M4681 and M4682 with short thick wires While playing audio at normal to high volume use an oscilloscope to verify that the voltage on the VBST_AUD_AMP_R node the junction of C6473 and C6475 alternates between B_PLUS voltage and approximately 9 V depending on the audio content While playing media audio at normal to high volume use an oscilloscope measure the differenti...

Страница 76: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Universal Headset Detect IC Circuit 1 8 V DC 2 9 V DC ...

Страница 77: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Universal Headset Detect IC Circuit 2 9 V DC 1 8 V DC ...

Страница 78: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Headset Circuit 2 9 V DC 2 1 V with headset mic 150 mV RMS max with headset ...

Страница 79: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Universal Detect IC and Headset Circuits 2 9 V DC 2 1 V with headset mic 150 mV RMS max with headset ...

Страница 80: ...ous slides Verify that the supply voltage VDD_FSA8500 C4813 C4819 is 2 9 V DC Verify that the supply voltage VIO_FSA8500 C4821 is 1 8 VDC Verify that the open circuit voltage on the headset socket SLEEVE contact is 2 9 V DC The SLEEVE contact voltage drops to about 2 1 V DC when a standard non OMTP headset with a microphone is plugged in While playing media with a headset plugged in use an oscillo...

Страница 81: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL NFC TROUBLESHOOTING ...

Страница 82: ...Moto X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL NFC Measured RF Power Radio Level SWP Line Status with NFC SIM Inserted NFC Tag Detected NFC Failure Modes ...

Страница 83: ...to X Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Troubleshooting NFC Measured RF Power and NFC Tag Detection 1 Verify that NFC antenna is connected and properly seated ...

Страница 84: ...Pure Edition Moto X Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Troubleshooting NFC Measured RF Power and NFC Tag Detection 1 Verify that NFC antenna is connected and properly seated continued ...

Страница 85: ...TOROLA CONFIDENTIAL Troubleshooting NFC Measured RF Power and NFC Tag Detection 1 Verify that NFC antenna is connected and properly seated continued 2 Visually inspect NFC antenna match for any damaged or missing parts 3 Visually inspect NFC antenna contacts for damage ...

Страница 86: ...Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Troubleshooting NFC Measured RF Power and NFC Tag Detection 1 Probe the below parts in NFC circuit and check specified voltage level Battery Voltage 3 8 4 2V Digital IO Voltage1 8V ...

Страница 87: ... Style Baseband TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Troubleshooting SWP Line Status with SIM inserted 1 Probe the below parts in NFC circuit and check specified voltage level 1 8V Regulator for Primary SIM 1 8V or 3 2V ...

Страница 88: ... TROUBLESHOOTING GUIDES MOTOROLA CONFIDENTIAL Troubleshooting SWP Line Status with SIM inserted 2 Check that a SIM card can be read from primary SIM slot If card cannot be read then this test will fail Refer to UIM section for troubleshooting ...

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