C905
1222-9526 rev. 1
TROUBLESHOOTING
Accelerometer Problems
TROU
B
L
E
S
H
O
OTIN
G
- Vibrator Problems
START
Step 1:
Got to Service Tests Menu and perform
the Accelerometer Test
If successful
Flash the Phone with EMMA SUCR SW
if not go to step 2.
Step 2:
Load ITP SW into the Phone
Use Dummy Battery connected to
Power Supply Channel 1 (VBATT)
Connect: DCIO/SEPI
Use Fault Trace SW
Fault Trace SW
MMI
Misc
Init Screen Testing
Activate:
Accelerometer Test
NOTE!
Read X, Y, Z information in
the Info Box.
Move the Phone
and
Activate Accelerometer Test again
NOTE!
Read X, Y and Z information
in the Info Box.
NOTE!
Repeat this Test Sequence
10 Times
Fault Trace SW
General
Asic Revisions
Read All
Is
Accelerometer
(N2411)
Asic Revision
0x3b
Replace
N2411
No
Yes
Can
you see
that X, Y and Z
information are
changing in the
info box
Flash the Phone with
EMMA SUCR SW
Replace
N2411
No
Is the
Accelerometer
Problem solved
Claim Component
N2411
Yes
SL 5 Replace
N2010
SL 4 Escalate
No
Yes
Accelerometer Problems
START
Step 1:
Load ITP SW into the Phone
Step 2:
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Vibrator Test
2.7V – 3.5V
Pk-Pk Pulses at
MP VIB + on
TRS Fixture
Is the
connection between
X4202 and
PBA GND (Shield
Can Fence)
Ok
Yes
Clean
X4201 and X4202
Yes
Is the
Vibrator working on
TRS Fixture
Replace the
Vibrator
Yes
No
Remove the PBA
from the TRS Fixture
No
Is
L4202 = Max 1.5 Ohm
Scrap the
PBA
Yes
SL 5 Replace
L4202
SL 4 Escalate
No
Remove the PBA
from the TRS Fixture
No
Is C4208
Short circuit
SL 5 Replace
C4208
SL 4 Escalate
Yes
Is
L4201 = Max 1.5 Ohm
No
SL 5 Replace
L4201
SL 4 Escalate
No
SL 5 Replace
N2000
SL 4 Escalate
Yes
Vibrator Problems
SEMC Troubleshooting Manual
29
(124)
