Harman Kardon BDP 20/230 Service Manual page 12

harman/kardon
No VFD display
Check whether the volt age
5V,12V on th e front bo ard is
normal work or not.
Check whether the volt
between VF D F+ &VFD F- is
DC 4V+/-0.4
Check w
voltage 38 V is normal
Replace U
No VFD display
Go
Yes
age
Yes
hether the
602
5-4
No Fix the conn ection po wer boa rd
CN502 front board XS603
No
Check DC12V to AC 4V switch circuit
No
Check the ZD602 on the front board
BDT 2 / BDT 20 Service Manual
Trouble shooting chart
Page 12 of 37