Sim Problems Memory Stick Problems; This Document Is Sony Ericsson Confi Dential And Should Be Treated As Confi Dential In Accordance Audio Internal Problems - Sony Ericsson K850 Troubleshooting Manual

SIM problems
Replace combo
reader and
Sim Com Test
Flash the Phone Yes
Passed
with EMMA
SUCR SW
Remove Test SIM
and Insert
Dummy SIM
No
Restart the Phone
Use:
Fault Trace SW
1.8 Volt DC
Activate: At MP SIM1
SIMVCC (Fixture Sim reader
Pin 1)
SIMVCC on
Activate:
Yes
SIMRST
SL 5 Replace
C2406 or C2411
SL 4 Scrap
1.8 Volt DC at
1.8 Volt DC at
MP SIM2 (Fixture SIM
No
MP 69 (TP2401)
reader Pin 2)
Yes
Yes
SIMVCC on
SIMRST on Replace
Activate: X2409
SIMCLK
Yes
1.0 Volt DC at
1.0 Volt DC at
MP SIM3 (Fixture Sim
No
MP 65 (TP2402)
reader Pin 3)
Yes
SIMVCC on
SIMRST on 1.8 Volt DC at
SIMCLK on MP SIM7 (Fixture SIM
Activate: reader Pin 7)
SIM DATA
Yes
Connection
Replace
Between MP PBA GND
No
X2409 and MP SIM5 (Fixture
Sim reader Pin 5)
Ok
TROUBLESHOOTING
START
Load ITP SW into the phone.
Fault trace SW
Use TRS Fixture.
Logic
Connect: Fixture Combo
SIM Card control
reader to the PBA and
Activate:
Insert Test SIM
SIM Com Test
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW
1.8 Volt DC at Replace
No Yes
MP 50 (TP2400) X2409
No
SL 4 Replace
X2409
C2406
If still faulty
Yes or C2411 No
SL 5 Replace
Short circuit
N2000
SL 4 Scrap
SL 5 Replace
C2410
C2410
No Yes
Short circuit
SL 4 Scrap
No
SL 5 Replace
N2000
SL 4 Scrap
Sl 5 Replace
C2408
C2408
No Yes
Short circuit
SL 4 Scrap
SL 5 Replace
N2000
No
SL 4 Scrap
1.8 Volt DC at Replace
No Yes
MP 70 (TP2403) X2409
SL 5 Replace
N2000
No
SL 4 Scrap
10 Kohm
SL 5 Replace
Between MP 50
Yes No R2419
(TP2400) and MP 70
SL 4 Scrap
(TP2403)
SL 5 Replace
Yes N2000
SL 4 Scrap
SIM Problems / Memory Stick Problems
Memory Stick problems
Load ITP SW
into the phone.
Fault trace SW
Use TRS Fixture
Logic
Connect:
SIM Card control
Fixture Combo reader to PBA
Activate:
Insert Memory Card
Memory Stick Test
Connect : VBATT and DCIO/SEPI
Use Fault Trace SW
0 Volt DC at
Memory Stick Test
No MP 105 (R2406
Passed
MSDETECT)
Yes
Yes
1.8 Volt DC at
MP 94 (R24102
CMDDIR
Replace Combo
D2410 Pin 4)
Reader and
Flash the Phone
with
EMMA
SUCR SW
Yes
Disconnect Combo
reader and restart
the phone, measure
Yes
the pulses after
5 sec
Restart the phone
after each 2.8 Volt at
measurement. MP 66 (R24105
Yes
Measure pulses MC_CLK)
after 5 sec.
1.8 V to 2.8V
Replace
at MP 63 (R24106) Yes
X2409
to MP 64 (R24110)
Yes
No
Restart the phone
1.8 V to 2.8V
Measure pulses
at MP 103 (R2490)
after 5 sec.
No
Restart the phone .
Measure pulses
after 5 sec.
SEMC Troubleshooting Manual
Is
START
X2409
No
damaged
Yes
SL 5 Replace
Replace
No D2410
X2409
SL 4 Scrap
Disconnect Combo
1.8 Volt at
reader and restart
MP 95 (R24102
the phone, measure
No
MCCMDDIR
the pulses after
D2410 Pin 3)
5 sec
Restart the phone
and measure the
pulses after 5 sec
1.8 Volt at SL 5 Replace
MP 96 (SP2408 No D2000
MCDATDIR) SL 4 Scrap
Cut the fence
according to the
repair instructions 1.8 Volt at
for D2460. Restart MP 100 (R2496
No
the phone and MCCLK)
measure pulses
after 5 sec.
Restart the phone
after each
measurement.
Measure pulses
Replace
after 5 sec.
D2460
From High to
Low pulses Signal Replace
Yes
At MP 98 (R2444) to D2460
MP 99 (R2448)
SL 5 Replace
D2000
No
SL 4 Scrap
SL 5 Replace
1.8 V to 2.8V
N2000
No
at MP 104 (R24101)
SL 4 Scrap
Replace
Yes
D2460
1203-2528 rev. 1
K850
Yes
No
No
Yes
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