W995
1230-1858 rev. 1
TROUBLESHOOTING
Opto Sensor Problems
T
R
O
UBL
ESHOOT
ING
- On Off Key Problems
START
Step 1:
Replace Slider Flex Assy and retest the Phone
If successful claim Slider Flex Assy
if not go to step 2.
Step 2:
Replace PBA Navi Key and retest the Phone
If successful claim PBA Navi Key
If not go to step 3.
Step 3:
Replace Display and retest the Phone
If successful claim Display
if not continue with the
Opto Sense Problems TRS guide
Is the
Display
illumination (LEDs)
Ok
Go to
Display illumination
Problems TRS guide
No
Can you see
any picture/image in
the Display
Yes
Go to
Display Problems
TRS guide
No
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Yes
More than
1.8V Pk-Pk Pulse at
MP 77 (C4215 OPTOEN)
Shortly after phone
Power On
SL 5 Replace
N2000
SL 4 Escalate
No
SL 4 Replace
X4300
SL 5 Replace
N2000
Yes
Opto Sensor Problems
No
Yes
START
Load ETS SW into the Phone
Use TRS Fixture
Use TRS Fixture Display Holder and Connect:
Slider Flex Assy and PBA Navi Key to the PBA
Connect:
Key Flex Assy and Keyboard to the PBA
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate
Keypad Scan Test
Perform Keypad Scan Test by pressing
all keys on the Numeric Keypad and the On/Off Key
Are the
Numeric Keys
Ok
Go to
Numeric Keyboard
Problems TRS guide
Is the
On/Off Key
Ok
No
Replace
X4300
Yes
Replace
PBA Navi Key or
Slider Flex Assy
On/Off Key Problems
SEMC Troubleshooting Manual
10
(125)