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3-2
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 supply
on the power board is
normal.
Check/Correct
connection
Whether the connection
to K301 is broken.
Correct the connection
Replace U1
No
No
Yes
Yes
Check if the XS301on the
front board to XP2 on the
decoder board is in good
contact.
Whether there is 0V and
3.3V voltage difference on
Pin 203 PCON of U1.
Trouble shooting chart
Содержание DVP3980KX/77
Страница 28: ...Front Board Print layout Bottom side 5 11 5 11 ...
Страница 29: ...5 12 5 12 Power Board Print layout Bottom Side ...
Страница 30: ...5 13 5 13 Switch Board Print layout Bottom Side ...
Страница 31: ...5 14 5 14 OK USB Board Print layout Bottom side ...
Страница 32: ...5 15 5 15 Main Board Print layout Top side ...
Страница 33: ...6 14 6 14 Main Board Print layout Bottom side 5 16 5 16 ...
Страница 36: ...REVISION LIST Version 1 0 Initial release Version 1 1 Adding DVP3980KX 77 IM OPU 7 1 ...