U8655
Maintenance Manual
11 Functional Tests
Issue 1.0 (2012-02-23)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
63
No.
Category
Item
Test Method
Black screen
The LCD displays a black screen.
Press the Volume– key to start the next test.
Red and blue bars
The LCD displays red and blue bars.
Press the Volume– key to start the next test.
6
LCD backlight
and status
indicator test
LCD backlight and
status indicator
If the LCD backlight repeatedly turns on and off, the
LCD backlight is normal. The status indicator is normal if
its color repeatedly changes in the sequence of red, green
and blue.
Press the Volume– key to start the next test.
7
Keypad LED
test
Keypad backlight LEDs If the keypad backlight repeatedly turns on and off, the
backlight LEDs are normal.
Press the Volume– key to start the next test.
8
Camera test
Camera test
Automatically test the camera. The phone's camera is
turned on, and the LCD displays the preview. Check the
image quality visually and test the camera's response
speed to determine the camera's performance.
Press the Volume– key to start the next test.
9
Touch screen
test
Touch screen panel
Place your figure on the touchscreen panel, and slide your
figure along the touchscreen panel edges. The areas near
the route that your figure passes should turn red.
Press the Volume– key to start the next test.
10
Approach test
The proximity and
illuminance sensor's
proximity detection
function
Place the light shielding plate approximately 4 mm above
the light hole. If a phone icon is displayed nearby the
portrait, the function is normal.
If this test passes, the next test automatically starts.
11
Environmental
light test
The proximity and
illuminance sensor's
function to sense
environmental light
Check whether the environmental light sensing data is
detected: Use your hand to block the light hole, the light
sensing number will decrease approximately 10 if the
illuminance sensor functions properly.
If this test passes, the next test automatically starts.
12
Vibration test
Vibration motor
The motor will vibrate intermittently.
Check whether the vibration (including the vibration
sound) is normal.
Press the Volume– key to start the next test.
13
Speaker test
Speaker test
Automatically test the speaker. (Do not insert the
headset.) If the speaker emits sound during the test, it is
normal.
Press the Volume– key to start the next test.
