iPhone 18 Pro Max Front Camera, Dot Projector, Flood Illuminator & IR Camera Schematic

Understanding the front camera and depth-sensing circuitry is important for advanced iPhone motherboard troubleshooting. This schematic provides a detailed overview of the iPhone 18 Pro Max front camera, dot projector, flood illuminator and infrared camera connections.

In this technical reference, we examine the major ICs, connectors, power supply rails and communication signals associated with these camera circuits.

iPhone 18 Pro Max – Front Camera, Dot Projector, Flood Illuminator & IR Camera

1. Front Camera Circuit

The front camera is connected through the J10 (J_FCAM) connector. Its connections interface with the camera power management circuitry and CPU camera subsystem.

Important Components

• J10 – J_FCAM: Front camera connector.
• U11 – WIDE_PMU: Camera power management section.
• U12 – CAM_PMU2: Camera power management IC.
• U13 – CPU_CAM: CPU camera interface.
• U14 – CAM_PMU1: Camera power management IC.

2. Front Camera Power Supply Lines

The schematic identifies several power supply rails associated with the front camera circuitry. These are important checkpoints when troubleshooting camera-related hardware issues.

Important Power Rails

• PPVAR_CAM_PVDD
• PP1V91_CAM_PMU2_VDDIO
• PP2V26_FCAM_AVDD2
• PP3V16_FCAM_AVDD1
• PP1V02_FCAM_DVDD2
• PP1V11_FCAM_DVDD1
• PP1V25_S0

During troubleshooting, check the relevant supply rails, connector condition and associated components before replacing any camera-related IC or module.

3. Camera Communication & Control Signals

The camera subsystem uses dedicated communication and control signals between the camera power management circuitry and CPU.

Important Signals

• I2C_CAM_PMU2_SDA_1V8
• I2C1_CAM_PMU2_SCL_1V8
• I2C2_CAM_PMU1_SCL_1V8
• I2C2_CAM_PMU1_SDA_1V8
• CLK_CAM_PMU2_TO_FCAM_24M_1V8
• GPIO_CAM_PMU2_TO_FCAM_SHDN_1V8_L

These signals are useful reference points when diagnosing communication failures, camera detection problems and related power-up issues.

4. Dot Projector, Flood Illuminator & IR Camera

The right side of the schematic illustrates the depth-related hardware connections, including the dot projector, flood illuminator and infrared camera sections.

Important Components and Connections

• J11 – J_FDEPTH_TX: Depth-related connector.
• U15 – VCSEL_DRIVER: VCSEL driver section.
• PP_3V0_PROX_S2
• PP_2V82_IRCAM_AVDD_PINNACLES_VDD
• PP_FDEPTH_FLOOD_DOT_ANODE
• PP_FDEPTH_A_ANODE
• PP_FDEPTH_B_ANODE

These connections provide important reference points for understanding the depth-sensing hardware and its associated circuitry.

5. GENLOCK Circuit

The schematic also includes U1052 (GENLOCK), which is connected to synchronization-related signals between the camera system and CPU.

Important Signals

• IO_FCAM_TO_IRCAM_SYNC_1V8
• PP1V24_S0
• GPIO_MSG1_AP_TO_GENLOCK_RCAM_SYNC
• GPIO_ISP_TO_GENLOCK_LS_EN
• PP1V8_S0

6. Download the Complete Schematic PDF

For detailed circuit tracing and component-level analysis, download the complete iPhone 18 Pro Max front camera, dot projector, flood illuminator and IR camera schematic.

7. Technical Information

• Device: iPhone 18 Pro Max
• Circuit: Front Camera & Depth Camera
• Software: KiCad E.D.A. 10.0.4
• Revision: Rev 1.0
• Date: November 5, 2026
• Sheet: 9/12

Conclusion

This schematic is a useful technical reference for smartphone hardware engineers, repair technicians and electronics trainers working on advanced iPhone motherboard troubleshooting.

Understanding the power supply rails, camera communication signals, connector connections and associated ICs can help make the troubleshooting process more systematic.