Huawei H60-L04 Simplified Maintenance Manual page 64

H60-L04 Simplified Maintenance Manual
No. Task Step Content
7 LCD test 7
LCD
8 backlight 8
test
Testing
the
9 9
touchscr
een
Issue 1.0 (2014-09-04)
Test Method and Description
Navigate to the LCD test screen. Repeatedly press the
volume down key at an interval larger than 1.5s so
that the LCD displays five colored pictures (white,
black, red, green, and blue) in sequence.
If the LCD display is normal in each background, the
test is passed. Otherwise, the test fails; press the
power key to forcibly fail the test.
If the phone passes the test, press the volume down
key to test the next item.
1. When testing the backlight, the backlight will
become brighter step by step. You need to manually
check whether the phone passes the test.
2. If the phone passes the test, press the volume down
key to test the next item.
Use one of your fingers to start drawing from the top
of the screen. The test is complete until a rectangle
frame is displayed as shown in the left figure. Press
the volume down key to test the next item. If there is
no response or failure to display the continuous line,
mark the phone as a defective product.
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11 Quality Inspection Procedure and Methods
59