Philips BDP3200/51 - 5.5 No VFD Display Troubleshooting

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 "