Philips DVP3110/93 Service Manual page 12

The power can not be on or off
The power can't be
Check the power supply
on the power board is
normal.
Check if the CON301
on the front board to
CN5 on the decoder
board is in good
Whether the connection
to K301 is broken.
Whether there is 0V and
3.3V voltage difference on
Pin 100 PCON of U1.
on or off
Go
Yes
Yes
Yes
Yes
Yes
4-2
No
Repair the power board
No
Check/Correct connection
No
Correct the connection
No
Replace U1.
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