Vga/Vtf Camera Problems; Data Communication Problems - Sony Ericsson C903 Troubleshooting Manual

VGA/VTF Camera Problems

START
NOTE !
This TRS guide is valid ONLY for C903 phones with VGA/VTF Camera support.
Step 1:
Flash the Phone with EMMA SUCR SW and go to Service Tests Menu
Perform the: Main and VGA/VTF Camera Tests
If the Tests are successful then claim SW Flash
if not go to step 2.
Step 2:
Replace the Main Flex Assy and retest the Phone
If successfull claim Main Flex Assy
If not go to step 3.
Step 3:
Replace the Navigation PBA Assy and retest the Phone
If successfull claim Navigation PBA Assy
If not then continue with the VGA/VTF Camera Problems TRS guide
SL 4 Replace
X4202
Is the
SL 5 Replace Yes Main Camera
N4300, N4301, N4302 Ok
N4303, N4304 or
N4305
Is the
VGA/VTF Camera Claim Component
Yes
Problem Solved Faulty Component
SL 5 Replace
No N2010
SL 4 Escalate
TROUBLESHOOTING
Go to
No Main Camera
Problems TRS guide
VGA/VTF Camera Problems - Data Communication Problems

Data communication Problems

START
Step 1:
Perform
Is the
System Connector Protection Test
Flash process
If successful go to step 2.
Start-up when using
EMMA SW
Step 2:
Dowload ETS SW into the Phone
No
Use TRS Fixture
1: Connect: VBATT and DCIO/SEPI
2: Remove: DCIO/SEPI
3: Connect: USB Cable from the PC
Is
Go to
the USB
USB/VBUS No
Charging
Charging Problems
Ok
SL 5 Replace
5 Volt DC at
R2442 No
MP 75 (C2433)
SL 4 Escalate
Yes
2.7V – 3.3V DC
at MP 68 (C2437) and
1.8V DC at
MP 76 (C2435)
Yes
Remove the PBA from the
TRS Fixture
Max
2 Ohm between
MP 14 (X2405_Pin 10)
and MP 65
(Z2400_Pin 2)
Yes
Max
SL 4 Replace
2 Ohm between
N2420 MP 15 (X2405_Pin 11)
Yes
SL 5 Replace and MP 66
(Z2400_Pin 3)
N2010
SEMC Troubleshooting Manual
Yes
Is the SL 5 Replace
No ETS SW Flash Yes N2020
Successful SL 4 Escalate
Is
MP 14 (X2405_Pin 10) Replace
Yes Yes
Short circuit to GND V2421
No
Is
MP 15 (X2405_Pin 11) Replace
No Yes
Short circuit to the V2420
GND
SL 4 Replace
N2420
No
SL 5 Replace
N2010
Max
0.5 Ohm between
SL 5 Replace
MP 14 (X2405_Pin 10)
No No X2405
and MP 63
SL 4 Escalate
(Z2400_Pin 1)
Replace
Yes
Z2400
Max
0.5 Ohm between
SL 5 Replace
MP 15 (X2405_Pin 11=
No No X2405
and MP 64
SL 4 Escalate
(Z2400_Pin 4)
Replace
Yes
Z2400
1228-1147 rev. 1 21
C903
(129)