Touch Display Problems; Opto Sensor Problems - Sony Ericsson Aino - U10 Troubleshooting Manual

Touch Display Problems

START
Step 1:
Replace Display 3" TFT and retest the Phone
If successful claim Display 3" TFT if not go to step 2.
Step 2:
Replace the Slider FPC Assy and retest the Phone
if successful claim Slider FPC Assy if not go to step 3.
Step 3:
Perform a visual inspection of the
X4200 Board to Board Connector
Is the
SL 5 Replace
X4200
N2010 Yes
BtB Connector
SL 4 Escalate
Ok
TROUBLESHOOTING
Replace
No
X4200
Touch Display Problems - Opto Sensor Problems

Opto Sensor Problems

Replace PBA Top and retest the Phone
If successful claim PBA Top if not go to step 2.
Replace Display 3" TFT and retest the Phone
If successful claim Display 3" TFT if not go to step 3.
Replace the Slider FPC Assy and retest the Phone
if successful claim Slider FPC Assy if not go to step 4.
Load ETS SW into the Phone
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
Disconnect: VBATT and DCIO/SEPI
Remove PBA from the TRS Fixture
2: Perform a visual inspection of the
X4200 Board to Board Connector
SL 4 Replace
N4400
Yes
SL 5 Replace
N2000 or N2010
SEMC Troubleshooting Manual
START
Step 1:
Step 2:
Step 3:
Step 4:
Use TRS Fixture
Step 2:
MMI
Init Screen Testing
Misc
Activate:
Opto Sensor
2.8 Volt DC at Replace
No
MP 1 (C4401) N4400
Yes
1: Close the TRS SW
Is the
X4200 Replace
No
BtB connector X4200
Ok
1235-5821 rev. 1
Aino - U10
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