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Can't read disc or can't open the disk door
Can't read disc or can't
open the disk door
Check
DVD loader running is
normal
Check
cable from main board
connection to the loader is
normal
Check
voltage is normal (about
9.5V)
Check R724/R726 are normal
(the voltage between two
resistance is 1.5V
Replace the loade r
Yes
whether
the
Yes
45pin
and
9pin
Yes
if
U15(pin24)
Yes
Yes
4-4
NO
Check the connection 4pin cable from the
main board
NO
Fix the connection the 45pin cable or
9pin cable.
NO
Fix
FB19
voltage is OK(about 12V)
NO
Fix or Replace R724/R726
Trouble shooting chart
U14(pin3)
or
check
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