Huawei Ascend Maintenance Manual

Y210 Mobile Phone
Maintenance Manual
9 Principles and Failure Analysis
Issue 1.0 (2012-11-28)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
52
Figure 9-28 Sensor failure
The phone's display does not turn off when
near the user's ear during a call (The phone is
in portrait orientation; no headset is connected;
handsfree mode is disabled.)
Is U1207 poorly soldered
or dirty?
Re-solder, clean
or replace U1207
Re-install the phone's
firmware. Is the problem
solved?
Return the phone
to the factory
End
Y
N
Y
Is the touch panel's light
sensor hole dirty or
blocked?
Clean the hole
Y
N
N
9.4.11 Vibration Motor
Figure 9-29 Vibration motor circuit
The vibration motor's driving voltage is controlled by PM VIB_DRV_N.

Huawei Ascend Specifications

General

Brand	Huawei
Model	Ascend
Category	Cell Phone
Language	English