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5.1 Test flow for abnormal machine:
5. Troubleshooting
Start
N
Check DC Power
is 19V?
Y
blink
Key's LED
indicator is light
or blink?
light
BLACK screen
but a little light?
N
Check Main board
END
AC
power?
Check adaptor
No input signal
Re-insert 30pin LVDS cable
between LCM and main board
Still BLACK
screen?
5VD_REG,3V3D_REG
and 1VD_REG on main
board is normal?
Y
LCM broken
Power cord plug
into AC source
15
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