Secondary camera troubleshooting
Context
The following references on the PWB help in the effective debugging and troubleshooting of the secondary
camera.
Sr. No Reference Description
1 H1487 Secondary camera
2 R1487, R1488 Pull-up resistors on the secondary camera I2C lines. Resistor value
4.7 KOHMS.
3 D1400 BCM2727B IC
4 N1515 VCAM_1V8 regulator
5 N1517 VCAM_2V8 regulator
The following test points on the PWB help in the effective debugging and troubleshooting.
Sr. No Signal name Measuring point Description
1 VCAM_1V8 L1487/C1488 1.8V supply to secondary camera
2 VCAM_2V8 L1488/C1491 2.8V supply to secondary camera
3 VDIG_ENABLE J1515 Enable signal for VCAM_1V8 regulator. This signal
needs to be High for the regulator to be On.
4 VANA_ENABLE J1516 Enable signal for VCAM_2V8 regulator. This signal
needs to be High for the regulator to be On.
5 SEC_CAM_CLK J1487 External clock signal to secondary camera
6 SEC_CAM_SHUTDOW
N
J1488 Shutdown signal to secondary camera. This
needs to be High for the camera to be Up.
7 SEC_CAM_I2C(1:0) R1487, R1488 I2C signals for secondary camera
RM-596
Camera Module Troubleshooting
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