C905
1222-9526 rev. 1
TROUBLESHOOTING
Camera Snap Button LED
TROU
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- Camera Navigation LED Problems
0 Volt DC
at MP 161 (C2474)
when the Camera LED
is Activated
SL 5 Replace
N2000
SL 4 Escalate
No
Replace
X2410
Yes
Connect: VBATT and DCIO/SEPI
Restart the Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Camera LED
START
Load ITP SW into the Phone
Use TRS Fixture
Connect: Numeric Key Foil to the PBA
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Camera LED
If Camera Snap Button LED is working on the TRS Fixture
then Replace Numeric Key Foil
If not then continue with the
Camera Snap Button LED Problems TRS guide
Disconnect:
VBATT and DCIO/SEPI
Disconnect:
Numeric Key Foil
Max
1 Ohm
between
MP 74 (R4401) and
MP 72 (C4401)
SL 5 Replace
L4400
SL 4 Escalate
No
Yes
5 Volt DC at
MP 56 (TP4400) when
the Camera LED is
Activated
No
Replace
N4400
Yes
Camera Snap Button LED Problems
Connect: VBATT and DCIO/SEPI
Restart the Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Camera LED
No
Replace
X4200
Yes
0 Volt DC
at MP 92 (C4215) and
MP 86 (C4217) when
Camera LED is
Activated
0 Volt DC
at MP 89 (C4218)
when Camera LED is
Activated
SL 5 Replace
N2000
SL 4 Escalate
Yes
SL 5 Replace
V4208
SL 4 Escalate
No
Is
the Camera
Navigation LED
Problem solved
SL 5 Replace
N2000
SL 4 Escalate
No
Claim Component
V4208
Yes
START
Load ITP SW into the Phone
Use TRS Fixture
Connect: PBA Key Flex Flip and Slider FPC Assy
to the PBA
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Camera LED
If Camera Navigation LEDs is working on the TRS Fixture
then Replace
PBA Key Flex Flip or Slider FPC Assy
If not then continue with
Camera Navigation LED Problems TRS guide
Disconnect:
VBATT and DCIO/SEPI
Disconnect:
PBA Key Flex Flip and Slider FPC Assy
from the PBA
Max 1 Ohm
between
MP 74 (R4401) and
MP 72 (C4401)
SL 5 Replace
L4400
SL 4 Escalate
No
Yes
5 Volt DC at
MP 56 (TP4400) when
Camera LED is
Activated
Replace
N4400
No
Yes
Camera Navigation LED Problems
SEMC Troubleshooting Manual
17
(124)