Operation Led Problems; Camera Button Led Problems - Sony Ericsson W995 Troubleshooting Manual

Operation LED Problems

START
Load ETS SW into the Phone
Use the TRS Fixture and Connect:
Key Flex Assy to the PBA
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Operation LED
If Operation LED is working on the TRS Fixture then Replace
Key Flex Assy
If not then continue with the
Operation LED Problems TRS guide
1: Disconnect: VBATT and DCIO/SEPI
2: Disconnect and Remove the Key Flex Assy from
the PBA
3: Connect VBATT and DCIO/SEPI
3.8 Volt DC at
MP 54 (C4224)
No
Is the
SL 5 Replace
MP 53 (V2479_Pin C1)
V2479 Yes
Short Circuit
SL 4 Escalate
to the GND
TROUBLESHOOTING
Replace
Yes
X2410
SL 5 Replace
No N2000
SL 4 Escalate
Operation LED Problems - Camera Button LED Problems

Camera Button LED Problems

Load ETS SW into the Phone
Use the TRS Fixture and Connect:
Key Flex Assy to the PBA
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
Camera Button LED
If Camera Button LED is working on the TRS Fixture then Replace Key Flex Assy
If not then continue with the
Camera Button LED Problems TRS guide
1: Disconnect: VBATT and DCIO/SEPI
2: Disconnect and Remove the Key Flex Assy from
3: Connect VBATT and DCIO/SEPI
SL 5 Replace
V2479 Yes
SL 4 Escalate
SEMC Troubleshooting Manual
START
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
the PBA
3.8 Volt DC at Replace
Yes
MP 56 (C4222) X2410
No
Is MP 55
SL 5 Replace
(V2479_Pin C2)
No N2000
Short Circuit
SL 4 Escalate
to GND
1230-1858 rev. 1
W995
15 (125)