Camera Troubleshooting Overview; Camera Basic Test Points; Camera Tests For Phoenix - Nokia RM-555 Service Manual

RM-555
Camera Module Troubleshooting

Camera troubleshooting overview

Camera troubleshooting is broken down into 2 parts, Phoenix automatic checks and Manual Checks. The main
purpose of the Phoenix automatic check is to try and identify the fault automatically without any manual
checks. If the Phoenix automatic flow is not providing enough information, manual checking can be
performed to narrow down the fault.

Camera basic test points

The signal list below shows the camera basic tests points used in troubleshooting flow.
Sr. No Signal
name
1 GND
2 1.3V
3 1.8V
4 2.8V
5 VBAT
6 REG_EN
7 CAMCLK
8 EXTCLK1
9 EXTCLK2
10 XSHUTDO
WN0
11 XSHUTDO
WN1
12 FLASH_SY
NC
13 LED -out

Camera tests for Phoenix

Steps
1. The self tests can be executed from Phoenix test software. Connect the device to Phoenix, and select Self
Tests from the Testing menu.
Issue 1
Reference
designator
GND Ground
C5423 1.3V
C5422 1.8V
C5440 2.8V
C5424 VBAT
J5400 Regulator enable signal from host to HW accelerator
R2854 Clock signal from host to HW accelerator
R5415 Clock signal from HW accelerator to Primary camera
R5414 Clock signal from HW accelerator to Secondary camera
J1408 Shutdown from HW accelerator to Primary camera
J1411 Shutdown from HW accelerator to Secondary camera
J1451 Flash Sync signal from HW accelerator to Flash driver
C5443 Ouput of the Flash driver
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