Flash Troubleshooting - Nokia RM-596 Service Manual

Flash troubleshooting

Context
The following references on the PWB help in the effective debugging and troubleshooting of the flash.
Sr. No
1
2
3
The following test points on the PWB help in the effective debugging and troubleshooting of the flash.
Sr. No Signal name
1 VBAT
2 FLASH_READY_XE
3 FLASH_CHARGE_XE
4 CAM_FLASH_STROBE
5 FLASH_INDICATOR_XE
6 FLASH_AFASSIST_XE
Page 5 – 22
Reference
N1504
X1505
D1400
Measuring point
L1507/pin3 of X1505
J1430
J1504
J1503
R1508
J1506
COMPANY CONFIDENTIAL
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Camera Module Troubleshooting
Description
Flash driver
Habanero flash connector
BCM2727B IC
Description
VBAT supply to flash and flash driver
Ready signal from flash module
Charge signal to flash module. This needs to
be High for the charging to start.
Strobe signal to flash module. This needs to
be High for flashing.
Flash indicator signal to flash driver
Flash auto focus signal to flash driver
RM-596
Issue 2