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iPhone camera circuit repairing

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This video mainly explains how to find the super-wide-angle camera signals

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and measurement points of the iPhone12, 12Pro

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Search methods step 1, find the super wide-angle camera connector in the component map

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Step 2, determine the position number in the bitmap

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Step 3, search for the position number in the circuit diagram,

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and find the corresponding signals

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Step 4, according to the signals, jump to the bitmap to view the connected components

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The voltage and diode value can be measured at the position of the yellow point in the bitmap

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When checking the maps, first open the iPhone12, 12Pro component maps, circuit diagrams, and bitmaps

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Find the camera connector in the component map

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And determine the position number of the connector in the bitmap

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Then search for the position number in the circuit diagram

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After finding the camera connector, find the corresponding signals

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Let's first find the 1.8V power supply of the super-wide-angle camera

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Pin 44 of the connector is the 1.8V power supply

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Jump to the bitmap according to the name,

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the 1.8V power supply is directly connected to the camera power supply U5600

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after passing through the fuse inductor FL10510

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Next, find the I2C bus from the camera power supply 2 to the super-wide-angle camera

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Pins 10 and 12 of the connector are the I2C buses

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Pin 10, jump to the bitmap according to the signal name,

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it is directly connected to the camera power supply U5600

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Pin 12, jump to the bitmap according to the name,

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the bus is also directly connected to the camera power supply

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Next, find the 24M clock signal from the camera power supply to the super-wide-angle camera

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Pin 8 of the connector is the 24M clock signal

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Jump to the bitmap according to the name,

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it is connected to the camera power supply U5600 after passing through the fuse resistor R10550

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Next, let's look for the PPVAR power supply, PP1.2V power supply and PP2.85V power supply

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sent by the camera power supply and the camera power supply conversion tube

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Pin 40 of the connector is the PPVAR power supply

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Jump to the bitmap according to the name,

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the PPVAR power supply is directly connected to the camera power supply U5600,

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without fuse in the middle

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Pin 42 of the connector is the 2.85V power supply

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Jump to the bitmap according to the name,

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the 2.85V power supply is connected to the camera power supply conversion tube U5930

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Pins 47 and 48 of the connector are the 1.2V power supplies

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Jump to the bitmap according to the name,

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the 1.2V power supply is directly connected to the camera power supply,

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and there is no fuse in the middle

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Next, let鈥檚 look for the open signal from the camera power supply to the super-wide-angle camera

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Pin 16 of the connector is the open signal

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Jump to the bitmap according to the name,

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the open signal is connected to the camera power supply U5600

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Let's find the LPDP data bus from the super-wide-angle camera to the CPU

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Pins 20, 22, 26, 28, 32, 34 of the connector are the LPDP buses

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The LPDP bus will pass through the coupling capacitor and then connect to the CPU

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Pin 20, LPDP bus, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C10534

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And connected to the CPU after passing through the capacitor

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Pin 22, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C10535,

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and then connected to the CPU after passing through the capacitor

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Pin 26, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C10531,

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and then connected to the CPU after passing through the capacitor

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Pin 28, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C10530,

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and then connected to the CPU after passing through the capacitor

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Pin 32, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C10532,

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and then connected to the CPU after passing through the capacitor

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Pin 34, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C10533,

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and then connected to the CPU after passing through the capacitor

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Next, look for the LPDP bus detection signal from the CPU to the super-wide-angle camera

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Pin 6 of the connector is the LPDP bus detection signal

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Jump to the bitmap according to the name,

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the detection signal is connected to the coupling capacitor C10536,

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and it is also connected to the CPU after passing through the capacitor

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A damaged or missing coupling capacitor will cause the camera to fail to open

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That's all for this video