No VFD display
Check whether the voltage
between VFD F+&VFD F- is
DC 7V+0.5
Go
No
No
No VFD display
Yes
Fix the connection power board
CN502 front board XP1
Check whether the voltage
+5Vstb on the front board is
normal work or not.
Check DC5V to AC 3V switch circuit
Replace U4,U3
Yes
Check whether the
voltage 33 V is normal
No
Check the d5 on the front board
Trouble shooting chart
Yes
30
harman/kardon
BDP 1 / BDP 10 Service Manual
Содержание BDP 1/120
Страница 32: ...Front Board Print layout Top side 32 harman kardon BDP 1 BDP 10 Service Manual...
Страница 33: ...Front Board Print layout Bottom side 33 harman kardon BDP 1 BDP 10 Service Manual...
Страница 34: ...IR Board Print layout Bottom side 34 harman kardon BDP 1 BDP 10 Service Manual...
Страница 35: ...Power Board Print layout Bottom side 35 harman kardon BDP 1 BDP 10 Service Manual...
Страница 36: ...Main Board Print layout Top side 7 20 36 harman kardon BDP 1 BDP 10 Service Manual...
Страница 37: ...Main Board Print layout Bottom side 37 harman kardon BDP 1 BDP 10 Service Manual...