IC Number in Schematic |
U400 |
Name and Function of IC |
Power supply and audio codec |
Technical Number |
PM8916 |
IC Manufacturer |
QUALCOMM |
IC Package |
WB-NSP,176P |
Malfunctios related to IC :
Complete shutdown of the phone
Power button malfunction
3.عدم انتن دهی
No sound in RCV
5.عدم داشتن صدا در اسپیکر
Headphone microphone malfunction
7.عدم کارکرد میکروفون MAIN
Repair flowchart related to this section :قطعات C449=1.1V, C448=1.1V, C451=1.3V را دارا میباشد که در صورت عدم وجود ولتاژ ایسی U400 را تعویض وبررسی نمایید.
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