4-12

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 supply
on the power board is
normal.
Check/Correct connection
Whether the connection
to K301 is broken. Correct the connection
Replace U2.
No
No
Yes
Yes
Check if the CON301 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 104 PCON of U2.

Trouble shooting chart

Remark: Trouble shooting chart for

DVP3156/XX, DVP3166(K)/XX