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iPhone camera circuit repairing

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This video mainly explains how to find iPhone 11 Pro, ProMax super-wide-angle camera signals

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and measurement points

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Search method 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 component map, circuit diagram,

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and bitmap of the iPhone 11 Pro, ProMax

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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鈥檚 first find the 1.8V power supply from the camera power supply to the super-wide-angle camera

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The 22nd pin 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 connected to the fuse inductor FL7495,

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And connected to the camera power supply after passing through the inductor

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

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Pins 19 and 21 of the connector are the I2C buses

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Pin 19, jump to the bitmap according to the name, the I2C bus is connected to the camera power supply

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Pin 21, jump to the bitmap according to the name,

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the 21 pin I2C bus is also 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 24 of the connector is the 24M clock signal

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Jump to the bitmap according to the name,

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the clock signal will be connected to the camera power supply

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after passing through the fuse resistor R7405

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Next, find the AVDD2 power supply and 1.2V, 2.925V power supply

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sent by the camera power supply and the camera conversion tube when the camera circuit is started

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Pins 25, 26, and 28 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 power supply is directly connected to the camera power supply conversion tube U3900

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Pin 14 of the connector is the 2.925V power supply

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Jump to the bitmap according to the name,

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the power supply is directly connected to the camera power supply conversion tube U4130

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Pin 16 is the AVDD2 power supply for the super-wide-angle camera

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Jump to the bitmap according to the name,

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AVDD2 power supply is directly connected to the camera power supply

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

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Pin 13 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 directly connected to the camera power supply without fuse in the middle

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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 2, 4, 5, 7, 8, and 10 are the LPDP data buses

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Pin 2, LPDP bus, jump to the bitmap according to the name,

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the pin is connected to the coupling capacitor C7440,

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and connected to the CPU after passing through the capacitor

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Pin 4, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C7441,

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and then connected to the CPU after passing through the capacitor

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Pin 5, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C7450,

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and then connected to the CPU after passing through the capacitor

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Pin 7, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C7451,

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and then connected to the CPU after passing through the capacitor

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Pin 8, jump to the bitmap according to the name,

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it is connected to the coupling capacitor C7430,

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and then connected to the CPU after passing through the capacitor

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

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it is connected to the coupling capacitor C7431,

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and then connected to the CPU after passing through the capacitor

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

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Pin 1 of the connector is the LPDP bus monitoring signal

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Jump to the bitmap according to the name,

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the monitoring signal is connected to the coupling capacitor C7460,

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

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The LPDP bus will be connected to the CPU through a coupling 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