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소개

Rosin and the freeze spray are the two commonly used and low-cost methods for faulty components locating when repairing logic boards. Still, you can use the Thermal Imager instead for more efficient repair work if the two methods become time-consuming. Check our iPhone X repair guide today and you will be surprised at how the Thermal Imager is used in iPhone X won’t turn on repair. Also, for repair technicians, it’s important for you to understand how iPhone X boot circuit works before starting your repair work.

동영상 개요

  1. Hold the power button to turn on the phone. The phone won’t turn on.
    • Hold the power button to turn on the phone. The phone won’t turn on.

    • Take apart the phone and disconnect the battery. Remove the screen and take out the motherboard.

    • Let’s check the boot current first. The boot current is larger than normal value.

    • Touch the motherboard with one hand. The NAND flash chip and the area surrounding it are hot.

  2. Since there are so many components on the hot area, we can locate the faulty component with the help of the Thermal Imager.
    • Since there are so many components on the hot area, we can locate the faulty component with the help of the Thermal Imager.

    • Put the motherboard under the Thermal Imager. Get the motherboard powered on. We can see clearly that C2647 is extremely hot. Judging by this, C2647 is probably damaged.

  3. Nintendo Switch 키트

    게임으로 돌아가기 위한 빠른 해결책

    Nintendo Switch 키트 쇼핑하기

    Nintendo Switch 키트

    게임으로 돌아가기 위한 빠른 해결책

    Nintendo Switch 키트 쇼핑하기
  4. Let’s remove C2647 and run diode mode measurement of its bonding pad. The measured value is normal.
    • Let’s remove C2647 and run diode mode measurement of its bonding pad. The measured value is normal.

    • We can confirm now that C2647 is damaged.

  5. Let’s replace with a new capacitor and see how it works.
    • Let’s replace with a new capacitor and see how it works.

    • Clean the bonding pad and solder new capacitor. Assemble the phone and test. The phone turns on normally.

결승점

다른 2명이 해당 안내서를 완성하였습니다.

Phryne

회원 가입일: 2019년 11월 17일

8,008 평판

안내서 62개 작성하였습니다

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