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Quick search method for battery power supply in iPhone standby circuit

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We only need to find the battery connector in the bitmap

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the battery connector marked with BATT is the battery power supply

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Quick search method for main power supply

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For 6- 6s plus models, we only need to search for

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PP_VCC_MAIN in the corresponding bitmap

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the yellow point is the main power supply

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For 7-13 Pro Max models, enter PP_VDD_MAIN

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in the bitmap,

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and the yellow position is the main power supply

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Quick search method for boost power supply

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Boost power supply will only be available in iPhone 7 and later models

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We enter PP_VDD_BOOST in the bitmap of the corresponding model,

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and the position of the yellow point is the boost power supply

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Let's go to the bitmap to find

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Let's take the 6s model as an example,

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After finding its battery connector,

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there will be two red dots in the middle of the battery connector

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Select them, and the one marked BATT is the battery power supply

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To find the main power supply,

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we only need to select the search signal in the bitmap

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and enter PP_VCC_MAIN

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The yellow position in the bitmap is the main power supply

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We just measure one yellow point when we test

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How to find battery power supply for iPhone 7

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We find the battery connector on the bitmap,

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and there are two red lines in the middle

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Select them, and the one marked BATT is the battery power supply.

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How to find the main power supply for iPhone 7

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We select the search signal in the bitmap and enter PP_VDD_MAIN

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The yellow point in the bitmap is the main power supply

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We only need to measure one yellow point to determine

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whether the main power supply is short-circuited

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How to find boost power supply for iPhone 7 and above models

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We select the search signal and enter PP_VDD_BOOST

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the yellow position is the boost power supply

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We only need to measure oyellow point to determine

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whether the boost power supply has a short circuit

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How to find the battery power supply for iPhone 12 Pro Max

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We find the battery connector in the bitmap

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This red cable, marked BATT, is the power supply of the battery

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How to find the main power supply

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We enter PP_VDD_MAN in the search signal box

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The yellow position in the bitmap is the main power supply

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We can measure one yellow position to determine

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whether the main power supply is short-circuited

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How to find the boost power supply for iPhone 12 Pro Max

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We enter PP_VDD_BOOST in the search signal box

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The yellow position in the bitmap is the boost power supply

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We can measure one yellow position to determine

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whether the boost power supply is short-circuited

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After we find the battery power supply, boost power supply

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or main power supply in the bitmap,

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we only need to compare the physical map and find

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the same position to measure a main value of the power supply

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If the main value is 0, it means the line is short-circuited