C903
1228-1147 rev. 1
TROUBLESHOOTING
Tally LED Problems
T
R
O
UBL
ESHOOT
ING
- Trickle Charge LED Problems
START
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Tally LED
Continue with the Tally LED Problems TRS guide
1.8 Volt DC
at MP 30 (R4310)
Replace
N2410
No
SL 4 Replace
V4310
SL 5 Replace
V4311
Yes
Tally LED Problems
START
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Charge LED
Continue with the Trickle Charge LED Problems
TRS guide
1.8 Volt DC
at MP 95
(V4350_Anode)
SL 5 Replace
N2000
SL 4 Escalate
No
Replace
V4350 or V4360
Yes
Trickle Charge LED Problems
SEMC Troubleshooting Manual
17
(129)