Philips DVP1120 Service Manual page 13

The power can not be on or off
The power can't be
on or off
Check the power supply
on the power board is
normal.
Yes
Check if the CN301 on the
front board to CN5 on the
decoder board is in good
contact.
Yes
Whether the connection
to K401 is broken.
Yes
Whether there is 0V and
3.3V voltage difference on
Pin 192 PCON of U1.
Yes
Go
Yes
4-2
No
Repair the power board
Check/Correct
No
connection
No
Correct the connection
No
Replace U1.
Trouble shooting chart