No VFD display
is about AC2.5V
Go
No
No
No VFD display
Yes
Fix the connection power board
CN4 and front board J3
Check whether the voltage
+5V_STB on the front board is
normal
Check DC5V to AC2.5V switch circuit
Refer to "No display on VFD,
Yes
-24V,+12V and D1 is normal
No
Check the power board or replace D1
Trouble shooting chart
5-5
Check whether the voltage
between VFD's F1 and F2
Check whether the voltage
on the front board
Yes
and buttons do not work "
Содержание BDP3406 /F7
Страница 17: ...PSU PCB TOP 7 12 ...
Страница 18: ...Front PCB BOTTOM 7 13 ...
Страница 19: ...Main PCB TOP 7 14 ...
Страница 20: ...7 15 Main PCB Bottom ...
Страница 21: ...LED PCB TOP 7 16 ...
Страница 22: ...LED PCB BOTTOM 7 17 ...
Страница 23: ...8 0 Exploded View Diagram 8 1 1 2 3 5 6 7 8 12 11 10 9 ...