Philips DVP520 - Page 11

4-2
The power can not be on or off
Go
Yes
Yes
No
No
The power can’t be
on or off
Yes
Repair the power board
Check the power suppl
y
on the power board is
normal.
Check/Correct
connection of FFC
CN303
Whether the connection
to K301 is broken.
Fix connection
Replace U4.
No
No
Yes
Yes
Check if the FFC CN303
on the front board to CN5
on the decoder board is in
good contact.
Whether there is 0V and
3.3V voltage difference on
Pin 68 of U4.
Trouble shooting chart