주요 콘텐츠로 건너뛰기

기기를 고치세요

수리할 권리

부품 & 도구

2014년 9월 19일에 출시된 이 4.7” 스크린 iPhone은 iPhone 6 Plus의 작은 버전입니다. 모델 번호 A1549, A1586 및 A1589로 식별됩니다.

5065 질문 전체 보기

iPhone 6 PP1V8 Oscar 0 Volt

Hi,

Iphone 6 connected to power supplay 4V will boot until 0.07a - 0.09a and LOOP.

LCD Blank , Not in Recovery or DFU Mode .

Tested Tristar before and after replace 1V8 - 3V0 - 5V0 Lines Ok.

Tested Tigris 3V0 and 5V0 Lines Ok

No Short on VCC Line

PCB Not Heat

No water damaged.

Due Low power amp Loop i suspect to 1V8 SDRAM.

Start to Test all 1V8 lines and i fund 0V at line PP1V8_OSCAR.

IC - U2203 c2247 and c2248-1 instead of PP1V8_OSCAR has 0V.

IC - U2205 c2270-2 instead of PP1V8_OSCAR has 0V.

IC - U2205 c2272 instead of PP3V0_IMU has 0V.

From where PP1V8_OSCAR is taking power ? While Tristar and Tigris 1.8 are OK

Any Help will be highly appreciated

thanks In Advance

답변되었습니다! View the answer 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

점수 0

댓글:

Thanks but the set is taken by customer...

Regards

의견 추가하세요

Nintendo Switch 키트

게임으로 돌아가기 위한 빠른 해결책

Nintendo Switch 키트 쇼핑하기

Nintendo Switch 키트

게임으로 돌아가기 위한 빠른 해결책

Nintendo Switch 키트 쇼핑하기

답변 3개

선택된 해법

PP1V8_OSCAR is generated directly by the PMIC. If it is shorted (check it in diode mode as well), then you either remove the PMIC or remove U2201/U2203/U2204 to see where the short is coming from.

해당 답변은 도움이 되었습니까?

점수 1
의견 추가하세요
가장 유용한 답변

U2205 and U1901 seem to be the 2 things in common on those 2 missing power lines.... Accelerometer and Compass IC... Not sure if they effect boot... but could always remove U2205 and check voltages under it first and then move to 1901 to test for voltages under it.

해당 답변은 도움이 되었습니까?

점수 1

댓글:

Hi,

Removed and Checked voltages

Under U2205 had 0V

Under U1901 had 0.300V

We share same idea about they dont effect boot , but what else can be when phone boot hang on 0.07a and Tristar + Tigris 1V8 are OK ?

Thanks in Advace

Sorry friend i was out of country and forgot to replay , it didnt solve mine problem

Thanks for Replay. All the best

의견 추가하세요


Hi. Could you solve the damage? I have one the same is in 0.70ma does not have voltages in oscar

해당 답변은 도움이 되었습니까?

점수 0
의견 추가하세요

귀하의 답변을 추가하십시오

Formingus 가/이 대단히 고마워 할 것입니다.
조회 통계:

24 시간 전: 0

7일 전: 11

30일 전: 58

전체 시간: 1,405