Sony Ericsson W995 Troubleshooting Manual page 8

Dead Phone Problems part 2
START
NOTE !
Before following this guide the
Dead Phone Problems part 1 TRS guide
must be finished
Is the
Is
VAUDIO26
No N3103 or N2422
Voltage
getting hot
Ok
No
Yes
Is the
Is any of
VANA25
No
N2200 or N2010
Voltage
getting hot
Ok
No
Yes
Is the
Is
VBT27
No N1300
Voltage
getting hot
Ok
No
Yes
Is the
Is any of
VDIG
N2411 or N1300
No
Voltage
getting hot
Ok
No
Yes
Is the
SL 5 Replace
VBEAR26
No N2000
Voltage
SL 4 Escalate
Ok
Go to
Yes Dead Phone
Problems part 3
TROUBLESHOOTING
Replace
Yes
N3103 or N2422
SL 5 Replace
N2000
SL 4 Escalate
SL 4 Replace
N2200
Yes
SL 5 Replace
N2010
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
Yes N1300
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
SL 4 Replace
N2411
Yes
SL 5 Replace
N1300
SL 5 Replace
N2000
SL 4 Escalate
Dead Phone Problems
Dead Phone Problems part 3
Before following this guide the
Dead Phone Problems part 2 TRS guide
Is the
1.1V – 1.2V DC
VCORE12
No at MP 83
Voltage
(V2201_Cathode)
Ok
Yes
1.1V – 1.2V DC at
MP 84 (C2219)
Yes
Is the Is
VCORE18 MP 9 (L2202)
No
Voltage Short circuit to
Ok GND
No
Disconnect:
VBATT and DCIO/SEPI
Yes
Is
L2202 = Max 0.5 Ohm
Step 1:
Disconnect:
VBATT and DCIO/SEPI
Step 2:
Connect:
Slider Flex Assy and PBA Navi Key Is the
to the PBA ETS SW Flash
Connect: VBATT Only Successful
Step 3:
Use EMMA SW
Press the "C" key and Connect
USB Cable from the PC to the PBA
Flash the Phone with ETS SW
SEMC Troubleshooting Manual
START
NOTE !
must be finished
3.8 Volt DC at Replace
No No
MP 44 (L2201)
SL 5 Replace
Yes V2201 or N2000
SL 4 Escalate
SL 5 Replace
Yes N2000 or N2010
SL 4 Escalate
Replace
No
L2200
SL 4 Replace
N2200
Yes
SL 5 Replace
N2010
SL 5 Replace
No L2202
SL 4 Escalate
SL 4 Replace
N2200
Yes
SL 5 Replace
N2010
SL 5 Replace
Yes N2020
SL 4 Escalate
Go to Data
No Communication
Problems TRS guide
1230-1858 rev. 1
W995
L2201
8 (125)