Harman Kardon BDP 1/120 Service Manual page 27

harman/kardon
No audio output
Check whether the audio signal
is right from the U22 and
U24,U19,U20
Check whether the audio signal is
right from the U19.1 U19.7 and
U201,
uuuU22.1,U22.7,U24.1,U24.7
No audio output
Go
Yes
U20.7and
Yes
Check the connection of
the 12PIN cable from
xp7 on the main board
Yes
Replace the output
board
No
Check the U19,U20,
power supply
Replace
U22,U24,U20,U19
NO
Check the U23 power supply
NO
Connect the 12pin cable
to xp7 properly on output
board
27
BDP 1 / BDP 10 Service Manual
Trouble shooting chart
U22,u24
Yes
the
Replace the U23