C702
1221-7857 rev. 1
TROUBLESHOOTING
SIM Problem
TROU
B
L
E
S
H
O
OTIN
G
s - Memory Stick Problems
START
Step 1:
Load ITP SW into the phone
Step 2:
Insert Test SIM
Connect:
Dummy Battery (VBATT)
and DCIO/SEPI
Use Fault Trace SW
No
Sim Com Test
Passed
1.8 Volt DC at
MP114 (X2403_Pin 1 )
Yes
Yes
Replace
X2403
Yes
Remove Test SIM
Use TRS Fixture
Connect: VBATT
and DCIO/SEPI
Use Fault Trace SW
Activate:
SIMVCC
SIMVCC On
Activate:
SIMRST
Yes
SIMVCC On
SIMRST On
Activate:
SIMCLK
0.9V-1V DC at
MP 95 (X2403_Pin 3)
Yes
SIMVCC On
SIMRST On
SIMCLK On
Activate:
SIM DATA
1.8 Volt DC
at MP 91 (V2408)
Is
MP 91 (V2408)
Short circuit to
GND
MP 89 (X2403_Pin 5)
Connected to the
PBA GND
No
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
Yes
No
Fault Trace SW
Logic
SIM Card control
Activate:
SIM Com Test
Are any of
C2406 or C2411
Short circuit
No
SL 5 Replace
C2406 or C2411
SL 4 Escalate
Yes
No
10 Kohm
Between MP 96
(X2403_Pin1) (Red
Probe) and MP 90
(X2403_Pin 7)
(Black Probe)
SL 5 Replace
R2419
SL 4 Escalate
No
Yes
1.8 Volt DC at
MP 47 (C2406)
No
Replace
X2403
Yes
1.8 Volt DC at
MP 111 (X2403_Pin 2)
No
Replace
X2403
0.9V-1V DC at
MP 93 (V2407)
No
Yes
SL 4 Replace
X2403
SL 5 Replace
V2408
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
1.8 Volt DC
at MP 92 (V2404 )
SL 5 Replace
N2000
SL 4 Escalate
Yes
No
0.9V-1V DC at
MP 48 (ST2400)
No
SL 5 Replace
V2407
SL 4 Escalate
No
Replace
X2403
Yes
Flash the phone with
EMMA SUCR SW
SIM Problems
Load ITP SW into the phone
Use TRS Fixture
Connect :
VBATT and DCIO/SEPI
Insert Memory card
Use Fault Trace SW
Memory Stick Test
Passed
Yes
Is
X2490
damaged
No
Replace
X2490
Yes
Fault trace SW
Logic
SIM Card Control
Activate:
Memory Stick Test
START
No
No
0 Volt DC at
MP 62 (R2406
MSDETECT)
Yes
Flash the phone with
EMMA SUCR SW
SL 5 Replace
N2000
SL 4 Escalate
Problem solved
SL 5 Replace
D2000 and X2490
SL 4 Escalate
No
Yes
Claim Component
N2000
Memory Stick Problems
SEMC Troubleshooting Manual
16
(115)
Summary of Contents for C702
Page 116: ...www s manuals com ...