C903
1228-1147 rev. 1
TROUBLESHOOTING
Flash LED Problems
T
R
O
UBL
ESHOOT
ING
START
Step 1:
Go to Service Test and perform the Main Camera Test
If successful go to step 2, if not go to
Main Camera Problems TRS guide.
Step 2:
Replace Camera 5MPixel CMOS Slim
If successful claim Camera 5MPixel CMOS Slim
if not go to step 3.
Step 3:
Replace SIM Flex Assy
If successful claim SIM Flex Assy
if not go to step 4.
Step 4:
Load ETS SW into the Phone
Use TRS Fixture
Connect the Main Camera to the PBA
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Flash LED
Is the
Flash LED
Ok
Go to Flash LED
Problems in
Torch Mode
No
1:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Deactivate:
Flash LED
2: Activate
Main Camera
Yes
1.8 Volt DC at
MP 98 (R2298)
Replace
N2410
No
1.8 Volt DC at
MP 99 (C2298)
Yes
Replace
N2271
No
Yes
SL 4 Replace
N4401 or X4300
SL 5 Replace
N2000 or N2010
Flash LED Problems in Camera Mode
START
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Flash LED
3.8 Volt DC at
MP 97 (R4115)
Replace
V4110, V4111
or N4401
Yes
3.8 Volt DC at
MP 96 (L4102)
No
Replace
L4102
No
SL 4 Replace
N4401
SL 5 Replace
N2000 or N2010
Yes
Flash LED Problems in Torch Mode
SEMC Troubleshooting Manual
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