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Wednesday, January 11, 2017

Huawei G610 U00 Power Section ဒုတိယပိုင္း

 PHONE SERVICE AND REPAIRING     12:33 AM     No comments   

Pone တစ္လံုး Operating System ေခၚ Firmware လုပ္ေဆာင္ခ်င္တက္လာဖို႔ တစ္နည္း Power ပြင့္လာဖို႔ အေရးႀကီးဆံုးေသာအခ်က္သည့္ PMU IC မွ အထြက္ Volt အားမ်ားမွန္ကန္စြာထြက္ရွိေနျပီး၊ CPU ႏွင့္ EMMC IC တို႔တြင္ ျပစ္ခ်က္ကင္းေနရပါမည္။ ထို႔ေၾကာင့္ Power Management Unit IC ျဖစ္ေသာ PMU IC မွ CUP IC သို႔ သြားေသာ အထြက္ Volt လမ္းေၾကာင္း 2 ေၾကာင္းႏွင့္ EMMC သို႔သြားေသ Volt လမ္းေၾကာင္း 2 ေၾကာင္းသည္ အဓိကလိုအပ္ပါသည္။

 CPU ႏွင့္ PMU IC သို႔သြားေသာ လမ္းေၾကာင္းႏွစ္ေၾကာင္းမွာ VPROC လမ္းေၾကာင္းႏွင့္ VCORE လမ္းေၾကာင္းတို႔ျဖစ္သည္။ EMMC သို႔သြားေသာလမ္းေၾကာင္းႏွစ္ေၾကာင္းမွာ VM လမ္းေၾကာင္းႏွင့္ VSRAM လမ္းေၾကာင္းတို႔ျဖစ္သည္။ Huawei G610 U00 တြင္

၁။    PMU IC မွ CPU အတြက္ VPROC သို႔သြားေသာ အထြက္လမ္းေၾကာင္းရွိမရွိကို Coil ျဖစ္ေသာ L201 ႏွင့္ Capacitor ျဖစ္ေသာ C222 တို႔တြင္ PMC မွ အထြက္ Volt 1.5 V ခန္႕ကို Power Key ႏွိပ္ထားခ်ိန္တြင္ ေတြ႕ရပါမည္။


၂။   PMU IC မွ CPU အတြက္ VCORE သို႔သြားေသာ အထြက္လမ္းေၾကာင္းရွိမရွိကို Coil ျဖစ္ေသာ L202 ႏွင့္ Capacitor ျဖစ္ေသာ C223 တို႔တြင္ Voltage 1.05v နီးပါးကို Power Key ႏွိပ္ထားခ်ိန္ေတြ႔ျမင္ရပါမည္။



၃။      PMU IC မွ EMMC အတြက္ VM သို႔သြားေသာ အထြက္လမ္းေၾကာင္းရွိမရွိကို Coil ျဖစ္ေသာ L203 ႏွင့္ Capacitor ျဖစ္ေသာ C224 တို႔တြင္ PMC မွ အထြက္ Volt 1.2 V ခန္႕ကို Power Key ႏွိပ္ထားခ်ိန္တြင္ ေတြ႕ရပါမည္။ VM ဆိုသည္မွာ DDR1,2,3 ကိုရည္ညြန္းထားပါသည္။ Operating System Data မ်ား ထိန္းသိမ္းထားေသာ EMMC ၏ storage အခန္းျဖစ္သည္။
၄။      PMU IC မွ EMMC အတြက္ VSRAM သို႔သြားေသာ အထြက္လမ္းေၾကာင္းရွိမရွိကို Coil ျဖစ္ေသာ L205 ႏွင့္ Capacitor ျဖစ္ေသာ C225 တို႔တြင္ PMC မွ အထြက္ Volt 1.15 V ခန္႕ကို Power Key ႏွိပ္ထားခ်ိန္တြင္ ေတြ႕ရပါမည္။ VSRAM ဆိုသည္မွာ internal storale(4Gb, 8Gb, 16GB, etc.,) ကိုရည္ညြန္းထားပါသည္



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