U9200 Maintenance Manual
INTERNAL
(2012-06-13)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Page 58 of 80
9.10 Proximity Sensor and Auto Light Sensor Failure
Figure 9-14
Proximity sensor and auto light sensor failure troubleshooting process
9.11 Acceleration Sensor Failure
If the acceleration sensor is faulty, the compass sensor does not function because the software
of the compass sensor depends on the acceleration sensor. This is a basis for determining the
acceleration sensor failure.
Proximity sensor and auto light
sensor failure
Is the panel blocked by
foreign matters? Is the
silicon gel jacket installed
correctly?
Y
Remove the
foreign matters,
and install the
silicon gel jacket
to the correct
position.
N
Is the connection to the
J1402 tight?
N
Tighten the
connection to the
J1402.
Y
Replace the sensor FPC.
