Main Camera Troubleshooting - Nokia RM-596 Service Manual

Main camera troubleshooting

Context
The following references on the PWB help in the effective debugging and troubleshooting of the main/
primary camera.
Sr. No
1 X1476
2 R1477, R1478
3 D1400
4 N1515
5 N1517
The following test points on the PWB help in the effective debugging and troubleshooting.
Sr. No Signal name
1 VBAT
2 VCAM_1V8
3 VCAM_2V8
4 VDIG_ENABLE
5 VANA_ENABLE
6 PRI_CAM_CLK
7 PRI_CAM_SHUTDO
WN
8 PRI_CAM_I2C(1:0)
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Reference
Primary camera socket
Pull-up resistors on primary camera I2C lines. Resistor value 4.7
KOHMS.
BCM2727B IC
VCAM_1V8 regulator
VCAM_2V8 regulator
Measuring point
L1476/C1476
L1477/C1479
L1478/C1482
J1515
J1516
J1476
J1477
R1477, R1478
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Camera Module Troubleshooting
Description
Description
VBAT supply to primary camera
1.8V supply to primary camera
2.8V supply to primary camera
Enable signal for VCAM_1V8 regulator. This
signal needs to be High for the regulator to
be On.
Enable signal for VCAM_2V8 regulator. This
signal needs to be High for the regulator to
be On.
External clock signal to primary camera
Shutdown signal to primary camera. This
needs to be High for the camera to be Up.
I2C signals for primary camera
RM-596
Issue 2