Can’t read disc or can’t open the disk door
Yes
Check the co nnection 4pin cable from the
main board
Can’t read disc or can’t
open the disk door
Check 45pin and 8pin
cable from main board
connection to the l oader is
normal
Replace the loader
NO
GO
Check whether the
DVD loader running is
normal
Fix the connection the 45pin cable or
8 pin cable
NO
Yes
Trouble shooting chart
5-3
Harman Kardon
BDT 3/120V and BDT 30/240V Service Manual
Page 17 of 35
