Apple MLB 820-00188, Logic Board / Motherboard BoardView file, Silkscreen and Schematic diagram
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iPhone 7 - MNAD2LL/A* - iPhone9,1 - A1660 - 3091* (Qualcomm Modem) iPhone 7 - MNCF2J/A* - iPhone9,1 - A1779 - 3091* (Qualcomm Modem) iPhone 7 - N/A* - iPhone9,1 - A1780 - 3091* (Qualcomm Modem) What's included : — Schematic Diagram — BoardView file and BoardView Software — Silkscreen — SCHEMATIC DIAGRAM ANALYSIS (23 pages): 2G receiving and transmitting 4G receiving and transmitting of China Mobile, China Unicom and China Telecom RF circuit architecture back camera block diagram Baseband block diagram bottom microphone block diagram charging block diagram display block diagram EEPROM block diagram fingerprint block diagram front camera block diagram GPS block diagram I2C bus block diagram light sensor. Proximity sensor volume key block diagram move. Unicom, telecom2G block diagram NAND Circuit block diagram NFC block diagram power on principle block diagram RF Amplifier vcc block diagram RFFE bus block diagram simcard block diagram touch block diagram Unicom, telecom 4G block diagram USB block diagram vibrator control block diagram WiFi principle block diagram — Diode Value, etc...: A10 CPU VCC pin ( not mainboard ) diode value diagram A10 middle-lever VCC Pin diode value diagram connect diode value diagram(Qualcomm ) diode value diagram diagram Fingerprint alignment and seat value — FAQ White apple restart due to idle soldering of baseband power supply inductor audio disconnection causes system stuck without recording maintenance backlight power supply fuse failure causes dark screen baseband causes white apple to restart 1 baseband causes white apple to restart 2 baseband S5 short circuit causes no baseband maintenance boost chip is broken leading to no power on card prompt no service handset has noise and hoarse ring tone hard disk damage leads to white apple rear camera not in focus U3601 without vibration due to tin connection white apple restart, normal brush machine white apple restart brush error 4013 troubleshooting ideas Baseband problem No ringing due to large audio disconnection Qualcomm Common problems Restart from time to time ACE assistant cannot read battery data Voice calls can't be recorded or delivered — Repair Cases: 3DTOUCH1.8V VCC convert transistor broken cause no 3Dtouch 24Mcrystal broken cause stop at 50MA no power on ampliter broken causeNO 4Gsignal Baseband Powersupply broken cause power consumption quickly Baseband Powersupply broken causerecovery error report Baseband Powersupply VCC broken causeNO Baseband Baseband S5 VCC circuit short error report 4013 Baseband S5circuit short causewhite apple restart battery connector loose linked cause restart battery detect pin convert transistor broken cause recovery failed BOOST capacitor broken cause no power on boost chip broken causeno poweron boot stop at white apple Baseband multiproblem change memory cause power consumption quickly charging chip charging inductor causeno poweron codec broken cause Reciver no abnormal codec drop pin causeReciver nosound microphonenosound codec empty weld cause SIRI failed codec wire break cause boot stop atwhite apple codec wire break cause cannot find record device CPUempty weld stop at boot display 5.7 V filter capacitor broken cause nodisplay display touch connector near component empty weld causeNO touch iPhone 7 display VCC chip broken causeno poweron iPhone 7 display VCC IC enablePIN wire break causenodisplay iPhone 7 dropped causewhite apple restart iPhone 7 dropped WIFI circuit short causeno poweron iPhone 7 dropped, Baseband pin cause signal abnormal iPhone 7 drppoed ,multiporblem no power iPhone 7 drppoed ,NAND 3Vfiltercapacitor broken no poweron iPhone 7 drppoed ,WIRwire break NO WIFI, Baseband Power supply wire break iPhone 7 drppoed Baseband Powersupply broken iPhone 7 drppoed PUinductor empty weld cause restart alone iPhone 7 fingerPrint connector wire break causefingerPrint failed iPhone 7 fingerPrint FPC U10 broken causeNO return iPhone 7 fingerPrint key U10 broken cause return HOME key too sensitive IPhone 7 fingerprint no return fault maintenance iPhone 7 fingerPrint SPI wire break causefingerPrint failed iPhone 7 fly wire to repaired WiFi signal poot iPhone 7 front FPC MIC3 insurance empty weld cause noise when paly recording video iPhone 7 high current when connect powersupply and no poweron iPhone 7 home key wire break WiFi failed iPhone 7 liquid enter corrosion cause no wifi,power consumption quickly iPhone 7 liquid enter corrosion NO front camera iPhone 7 liquid enter corrosion no poweron 2 iPhone 7 liquid enter corrosion no poweron iPhone 7 liquid enter no poweron 1 iPhone 7 liquid enter,no 4Gsignal iPhone 7 little RF broken causeNO IMEI iPhone 7 logic EEPROM broken causerecovery error report 9 iPhone 7 maincamera VCC convert transistor broken iPhone 7 MainVCC boost chip broken cause no poweron iPhone 7 MainVCC capacitor circuit short cause high current no poweron IPHONE 7 MainVCC filtercapacitor broken charging chip broken causeno poweron IPhone 7 mobile phone water ingress without baseband fault maintenance iPhone 7 multi inductor broken cause screen display water ripple iPhone 7 NAND broken cause recovery error report 4014 iPhone 7 NAND broken recovery NO serial number iPhone 7 NAND empty weld no power on and saved information iPhone 7 NAND VCC circuit short high current iPhone 7 NAND wire break causestop at white apple iPhone 7 NO battery data charging chip broken cause restart iPhone 7 NO service NO display iPhone 7 NO service, easterner ecovery,active failed iPhone 7 PCB layer wire break cause volume key abnormal iPhone 7 power consumption quickly no poweron iPhone 7 power key FPC corrosion causewhite apple restart iPhone 7 RF broke cause No Baseband iPhone 7 RF broken cause telephone call failed iPhone 7 RF broken causeerror report 4013 iPhone 7 S5circuit short causeNO service iPhone 7 screen broken iPhone 7 SDRAM 1.8V VCC inductor loose weld cause stop at 60MA when boot iPhone 7 SIMcard scoket broken cause no read simcard iPhone 7 SIMcard scoket broken USB broken cause no charging iPhone 7 system problem cause white apple and shutdown iPhone 7 USBchip broken cause boot failed iPhone 7 wifi failed iPhone 7 WIFI solder pad drop pin causeNO WiFi iPhone 7 wifichip broken cause failed and NO MAC ADD iPhone 7 wifiwire break iphone7 backlight VCC insurance broken cause dark screen iPhone7 Baseband Powersupply broken cause NO service iPhone7 Baseband Powersupply cause searching alone iPhone7 Baseband S5circuit short cause NO Baseband IPHONE7 Baseband VCC inductor empty weld causewhite apple restart iPhone7 BOOST capacitor broken cause power consumption quickly 500MA no power on iphone7 BOOST chip broken cause no power on iPhone7 change memory cause NAND drop pin no power on iPhone7 codec cause NO sound Powersupply reweld iphone7 codec wire break cause NO handfree iphone7 codec wire break cause NO sound iPhone7 codec wire break cause slowly and NO record iPhone7 codec wire break cause system slowly and NO record iPhone7 codec wire break causerecord failed iPhone7 CPU near inductor empty weld cause no power on iPhone7 display 5.7Vinsurance empty weld cause no display iPhone7 display VCC inductor broken cause no display iPhone7 display5.7Vfilter capacitor broken cause no display iPhone7 dropped, WIFIwire break causeNO WiFi iPhone7 intelversion, NO Baseband, CODEC wire break iPhone7 lighter NTC inductor loose weld cause display temperature over iphone7 liquid enter Baseband Powersupply corrosion cause NO service iPhone7 liquid enter no power on iPhone7 liquid enter no power on iPhone7 Main VCC filter capacitor broken cause no power on iPhone7 NAND broken cause boot stop at white apple iPhone7 NFC chip empty weld causeactive failed iphone7 RF broken cause SIMcard siganl abnormal iPhone7 S5 circuit short cause NO Baseband iPhone7 U3601 solder tin linked cause NO vibrator iPhone7 USB broken cause no charging Iphone7 USB broken cause no power on when put on front FPC iPhone7 wifi CODEC Baseband WIFI wire break-1 The common problem that iPhone 7 can't be opened when making phone calls — Trableshooting ways 01.connect powershort circuitmaintenace 02.No Power maintenace 03.power on large current 04.power on stop at Fixed current 20mA-30mA 05.power on stop at Fixed current 40mA-50mA 06.power on stop at Fixed current 60mA-70mA 07.power on stop at Fixed current 80mA-120mA 09.no display maintenace 10.display vcc maintenace 11.dark screen maintenace 12.Screen Half Bright maintenace 13.front camera maintenace 14.back camera maintenace 15.WiFi cannot open 16.WiFi signal poor 17.Voice calling no recivermaintenace 18.Voice calling no microphone maintenace 20.handfree calling no sound maintenace 21.handfree calling no microphone maintenace 22.no record maintenace 23.no charging maintenace 24.no connect computer maintenace 25.no Baseband maintenace 26.unrecognize simcard maintenace 27.no IM El code maintenace 28.no 2G receive maintenace 29.no 2G send maintenace 30.no 4G net maintenace 31.no Unicom 4G net maintenace 32.fingerprint cannot unlock maintenace 32.fingerprint cannot unlock maintenace2 33.no vibrator maintenace 34.no GPS data maintenace 35.no touch maintenace 36.IPhone troubleshooting ideas Main components: CPU : Apple A10 Fusion Screen: 4.7" Retina HD Year: 2016 File types : Schematic Diagram: PDF BoardView file : PCB Silkscreen: PDF |
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