Asus M530w, Service Manual

Page: 15 / 93

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Lv3Lv4 Repair Manual
華
華
碩
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電
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5.2 Measure method
1. Set up the power supply voltage and current at 4V and 1A.
Connect to the battery connector positive and negative of the
handset.
2. Press the POWER ON Key to power on the handset.
3. After entering the MMI Test Mode, select the “Main LCD”
test item. press the Down or up Button to display Red
、
Green
、
Blue
、
White
、
gray and Black, and watch the color.
5.3 Repair method
1. When it does Black Screen, check if the LCM connector
soldered poorly or short.
2. When it does White or Black Screen, check if the LCM FPC
oblique or LCM connector no mounted properly.
3. When it does White Screen please check if the U27 is soldered
poorly or short.
4. When the backlight is no function, please check if the
MAX8595ZETA (U12)
、
C208
、
C210
、
C211
、
C212
、
L201
、
D206
、
R214
、
R215
、
R223 and R224 are placed inversely,
soldered poorly or short.
5. If the above cases are not found, try to change a new LCM.
ASUS Proprietary 15