Table of Contents
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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 XS301 on the
front board to XP6 on the
decoder board is in good
contact.
Yes
Whether the connection
to K303 is broken.
Yes
Whether there is 0V and
3.3V voltage difference on
Pin 10 LED/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
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