9-13E
BDP-BX2/S360
USB Device flowchart
The USB device is not reco
nized.
Insert the USB device again.
Is it recognized when the power is
turned OFF and then ON again?
No
Is 5 V present at CN361 pin 1?
No
Is 5 V present at C617?
No
Is 5.8 V present at C610?
No
Power supply board defective
Yes Yes Yes Yes
Poor contact of the USB device
Defective harness between the USB
board and the MB board.
Does replacing IC601 improve the
symptoms?
No
Replace the MB board.
To Drive flowchart
BU Adjustment Flow [yy] ~ After
BU/MB Replacement ~
Yes
Replace the harness between the MB
board and the USB board.
Do the symptoms improve?
No
Replace the MB board.
To Drive flowchart
BU Adjustment Flow [yy] ~ After
BU/MB Replacement ~
IC601 defective
Yes
Defective harness between the USB
board and the MB board
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3
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9
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8
9
4
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9
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1
3
9
4
2
2
9
6
5
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3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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