Can’t read disc or can’t open the disk door
Yes
Check the c onnection of the 4PIN cabl e h e
Power Board.
Can’t rea d disc or can’t
open the disk door
Check SA TA cable from
main bo ard conn ection to
the loader is normal
Replace the loader
NO
GO
Check w hether the
DVD loa der ru nning is
normal
Fix the connection the And SATA cable from
main board
NO
Yes
Trouble shooting chart
5-3
harman/kardon
BDT 2 / BDT 20 Service Manual
Page 11 of 37