Touch Panel Failure - Huawei U8510-1 Maintenance Manual

9.9 Touch Panel Failure

Reference Figure 9-5
2011-05-28
U8510-1 Maintenance Manual Basic Version V1.0
TP failure
Upgrade TP,
check whether it is normal?
N
Measure whether
J901 is normal?
Y
Replace the TP module,
check whether it is normal?
N
Replace the U401
Huawei confidential. No spreading without permission.
Y End
Re-solder and
N
replace J901
Y End
Internal
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