1

00:00:00,466 --> 00:00:02,466

iPhone camera circuit repairing

2

00:00:03,000 --> 00:00:05,966

This video mainly explains how to find the signals and measurement points

3

00:00:05,966 --> 00:00:09,033

of the iPhone 12 Pro Max super-wide-angle camera

4

00:00:10,933 --> 00:00:15,533

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

5

00:00:17,566 --> 00:00:20,866

Step 2, determine the position number in the bitmap

6

00:00:23,466 --> 00:00:27,100

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

7

00:00:27,500 --> 00:00:29,366

and find the corresponding signals

8

00:00:33,700 --> 00:00:39,200

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

9

00:00:41,366 --> 00:00:45,833

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

10

00:00:47,200 --> 00:00:53,366

When checking the maps, first open the iPhone 12 ProMax component map, circuit diagram, and bitmap

11

00:00:54,800 --> 00:00:56,900

In the iPhone12Pro Max component map,

12

00:00:57,433 --> 00:01:02,233

the super-wide-angle camera is on the second longest connector on the right side of the mainboard

13

00:01:02,933 --> 00:01:08,300

This connector will connect two cameras, a telephoto camera and a super-wide-angle camera

14

00:01:09,900 --> 00:01:12,166

Find the camera connector in the component map

15

00:01:12,433 --> 00:01:15,300

And determine the position number of the connector in the bitmap

16

00:01:15,933 --> 00:01:18,766

Then search for the position number in the circuit diagram

17

00:01:19,900 --> 00:01:23,766

After finding the camera connector, find the corresponding signals

18

00:01:25,233 --> 00:01:30,466

Let's first find the 1.8V power supply from the camera power supply 2 to the super-wide-angle camera

19

00:01:31,700 --> 00:01:37,600

Pin 6 of the connector is the 1.8V power supply shared by the telephoto camera and the super-wide-angle camera

20

00:01:37,933 --> 00:01:39,766

Jump to the bitmap according to the name,

21

00:01:40,500 --> 00:01:45,433

the 1.8V power supply is connected to the fuse inductor FL10501,

22

00:01:45,566 --> 00:01:49,200

and connected to the camera power supply 2, U5600

23

00:01:49,800 --> 00:01:54,733

Let's find the I2C detection bus from the camera power supply 1 to the super-wide-angle camera

24

00:01:55,300 --> 00:01:58,966

Pins 10 and 12 of the connector are the I2C detection buses

25

00:01:59,600 --> 00:02:02,766

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

26

00:02:03,333 --> 00:02:07,600

it is directly connected to the camera power supply 1 U5300

27

00:02:08,100 --> 00:02:11,466

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

28

00:02:11,766 --> 00:02:15,000

the signal is also connected to the camera power supply 1

29

00:02:16,066 --> 00:02:21,200

Let's find the 24M clock signal from the camera power supply 2 to the super-wide-angle camera

30

00:02:21,633 --> 00:02:24,533

Pin 8 of the connector is the 24M clock signal

31

00:02:24,766 --> 00:02:26,500

Jump to the bitmap according to the name,

32

00:02:27,033 --> 00:02:34,066

the signal is connected to the camera power supply U5600 through the fuse resistor R10550

33

00:02:35,766 --> 00:02:40,633

Let's find the AVDD2 power supply, 1.2V, 2.85V power supply

34

00:02:40,633 --> 00:02:44,400

sent by the camera power supply 1 and the camera power conversion tube

35

00:02:49,566 --> 00:02:52,533

Pin 42 of the connector is the AVDD2 power supply

36

00:02:52,966 --> 00:02:54,766

Jump to the bitmap according to the name,

37

00:02:55,800 --> 00:03:02,933

the AVDD2 power supply is directly connected to the camera power supply 1 U5300, without fuse in the middle

38

00:03:03,966 --> 00:03:07,400

Pin 44 of the connector is the 2.85V power supply

39

00:03:07,766 --> 00:03:09,666

Jump to the bitmap according to the name,

40

00:03:09,933 --> 00:03:14,500

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

41

00:03:15,100 --> 00:03:19,200

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

42

00:03:19,500 --> 00:03:21,433

Jump to the bitmap according to the name,

43

00:03:21,833 --> 00:03:27,900

the 1.2V power supply is directly connected to the camera power supply conversion tube U5900

44

00:03:28,733 --> 00:03:34,133

Next, let's look for the open signal sent by the camera power supply 1 to the super-wide-angle camera

45

00:03:34,566 --> 00:03:37,000

Pin 18 of the connector is the open signal

46

00:03:37,533 --> 00:03:39,433

Jump to the bitmap according to the name,

47

00:03:40,633 --> 00:03:45,033

the open signal is connected to the camera power supply 1, U5300

48

00:03:45,433 --> 00:03:50,433

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

49

00:03:50,866 --> 00:03:58,966

Pins 24, 26, 30, 32, 36, and 38 of the connector are the LPDP data buses

50

00:04:00,133 --> 00:04:02,566

When the LPDP data bus transmits data,

51

00:04:02,933 --> 00:04:06,666

it will pass through the coupling capacitors, and then to the CPU

52

00:04:06,933 --> 00:04:10,066

Pin 24, LPDP bus, jump to the bitmap according to the name,

53

00:04:10,533 --> 00:04:14,100

the pin is connected to the coupling capacitor C10534

54

00:04:14,366 --> 00:04:17,533

And connected to the CPU after passing through the capacitor

55

00:04:18,466 --> 00:04:21,733

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

56

00:04:22,333 --> 00:04:26,133

it is connected to the coupling capacitor C10535,

57

00:04:26,400 --> 00:04:29,633

and then connected to the CPU after passing through the capacitor

58

00:04:30,500 --> 00:04:33,500

Pin 30, jump to the bitmap according to the name,

59

00:04:34,033 --> 00:04:37,800

it is connected to the coupling capacitor C10531,

60

00:04:38,133 --> 00:04:41,300

and then connected to the CPU after passing through the capacitor

61

00:04:42,800 --> 00:04:45,966

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

62

00:04:46,233 --> 00:04:50,000

it is connected to the coupling capacitor C10530,

63

00:04:50,400 --> 00:04:53,466

and then connected to the CPU after passing through the capacitor

64

00:04:53,800 --> 00:04:56,933

Pin 36, jump to the bitmap according to the name,

65

00:04:57,433 --> 00:05:01,200

it is connected to the coupling capacitor C10532,

66

00:05:01,566 --> 00:05:04,666

and then connected to the CPU after passing through the capacitor

67

00:05:05,033 --> 00:05:08,066

Pin 38, jump to the bitmap according to the name,

68

00:05:08,666 --> 00:05:12,233

it is connected to the coupling capacitor C10533,

69

00:05:12,733 --> 00:05:16,066

and then connected to the CPU after passing through the capacitor

70

00:05:16,933 --> 00:05:22,966

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

71

00:05:23,700 --> 00:05:27,066

Pin 14 of the connector is the LPDP bus detection signal

72

00:05:28,833 --> 00:05:31,066

Jump to the bitmap according to the name,

73

00:05:31,533 --> 00:05:35,966

the detection signal is connected to the coupling capacitor C10536,

74

00:05:36,200 --> 00:05:39,900

and connected to the CPU after passing through the capacitor

75

00:05:40,500 --> 00:05:45,000

If one of the coupling capacitors is damaged or missing, the camera cannot be used

76

00:05:45,766 --> 00:05:47,433

That's all for this video