Sim Problems; Memory Stick Problems - Sony Ericsson W890 Troubleshooting Manual

SIM Problems

Flash the Phone with Sim Com Test
Yes
EMMA SUCR SW Passed
Use TRS Fixture
Connect: VBAT and DCIO/SEPI
Use: Fault Trace SW No
Logic
SIM Card control
Activate: 1.8 Volt DC at
SIMVCC MP 70 (C2411)
SIMVCC on
Activate: Yes
SIMRST
Is
1.8 Volt DC at C2410
No
MP 71 (C2410) Short circuit
Yes
SIMVCC on
1 MHz and
SIMRST on
1.6V-1.9V Pk-Pk
Activate:
At MP R2499
SIMCLK
SIMVCC on
SIMRST on
SIMCLK on Yes
Activate:
SIM DATA
Disconnect:
VBATT and DCIO/SEPI
1.8 Volt DC at Connect:
No
MP 108 (R2419) SIM/M2 Flex Module
to the PBA
Use: DMM
Yes
Replace
X2402
TROUBLESHOOTING
START
Step 1:
Replace SIM/M2 Flex Module and
retest the phone. If successful
claim SIM/M2 Flex Module,
Fault Trace SW
If not go to step 2.
Logic
SIM Card control
Step 2:
Activate:
Load ITP SW into the phone
SIM Com Test
Connect:
Dummy Battery to VBATT
Insert Test SIM
Connect:
DCIO/SEPI
Use Fault Trace SW
Are any of SL 5 Replace
No C2406 and C2411 Yes C2406 or C2411
Short circuit SL 4 Escalate
SL 5 Replace
No N2000
SL 4 Escalate
SL 5 Replace
Yes C2410
SL 4 Escalate
SL 5 Replace N2000
If still faulty then
No
Replace D2000
SL 4 Escalate
Is SL 5 Replace
No R2499 No R2499
0 Ohm SL 4 Escalate
SL 5 Replace N2000
If still faulty then
Yes
Replace D2000
SL 4 Escalate
8 Kohm
Between MP 132
SL 5 Replace
(X102 SIMVCC)
No R2419
(Black probe) and MP 133
SL 4 Escalate
(X102 SIMDAT)
(Red probe)
SL 5 Replace N2000
If still faulty then
Yes
Replace D2000
SL 4 Escalate
SIM Problems - Memory Stick Problems

Memory Stick Problems

Load ITP SW into the phone
Fault trace SW
Logic connect SIM/M2 Flex Module
SIM Card Control
Activate: VBATT and DCIO/SEPI
Memory Stick Test
Memory Stick Test
No
Passed
Yes
Flash the phone with
EMMA SUCR SW
SEMC Troubleshooting Manual
START
Step 1:
Replace SIM/M2 Flex Module
and retest the phone. If
successful claim SIM/M2 Flex
Module, If not go to step 2.
Step 2:
Continue with the
Memory Stick Problems
TRS guide
Use TRS Fixture and
Is
Connect : No X2402
damaged
Insert Memory card
Use Fault Trace SW
Fault trace SW
Logic
GPIO Manager
GPIO-Read
Yes
GPIO 12-R
Is
Replace
Result GPIO No
X2402
LOW
Yes
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
Problem solved No D2000
SL 4 Escalate
Yes
Claim Component
N2000
1217-3942 rev. 1
W890
15 (119)